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Public Information Statement

PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE COLUMBIA SC 125 PM EST JAN 06 2012 ...2011 CLIMATE SUMMARY FOR THE MIDLANDS OF SOUTH CAROLINA AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA... ...PERSISTENT LA NINA PATTERN ACROSS THE REGION... ...TIED FOR THE SECOND WARMEST YEAR ON RECORD AT COLUMBIA... ...4TH DRIEST YEAR ON RECORD AT AUGUSTA... ...JANUARY 10TH-11TH WINTER STORM... ...APRIL HAIL EVENT ONE OF THE WORST ON RECORD... ...MULTIPLE FLASH FLOOD EVENTS ALONG ROCKY BRANCH CREEK IN AUGUST AND SEPTEMBER... ...HURRICANE IRENE BRUSHES THE SOUTH CAROLINA COAST IN AUGUST... ...HOTTEST SUMMER ON RECORD AT BOTH COLUMBIA AND AUGUSTA... ...SUMMARY... 2011 WILL LIKELY BE REMEMBERED AS A YEAR OF EXTREMES. AFTER BEGINNING THE YEAR WITH BELOW NORMAL TEMPERATURES AND A WINTER STORM ON THE 10TH AND 11TH...THE REMAINDER OF THE YEAR TURNED MILD TO HOT WITH DRIER THAN NORMAL CONDITIONS. AN ADDITIONAL FACTOR IN THE WEATHER OF 2011 WAS THE PERSISTENT LA NINA PATTERN THAT DEVELOPED DURING THE SUMMER OF 2010 AND PEAKED DURING THE FALL OF 2010 INTO THE WINTER OF 2011. THE LA NINA GRADUALLY WEAKENED DURING THE SPRING AS CONDITIONS IN THE EASTERN EQUATORIAL PACIFIC BECAME NEUTRAL...NEITHER EL NINO NOR LA NINA. CLIMATOLOGICALLY LA NINA PATTERNS PRODUCE MILD WINTERS AND WARM SUMMERS ALONG WITH DRY CONDITIONS ACROSS SOUTH CAROLINA. THIS WAS TRUE IN THE CASE OF THE DROUGHT THAT CONTINUES TO PLAGUE THE AREA. HOWEVER...DURING THE EARLY WINTER OF 2011 THE REGION WAS MORE INFLUENCED BY PERIODS OF COLD WEATHER AND SNOW THAT WERE A RESULT OF THE IMPACT OF THE NORTH ATLANTIC OSCILLATION...OTHERWISE KNOWN AS THE NAO. WHEN THE NAO IS IN A NEGATIVE PHASE IT OFTEN ALLOWS COLDER ARCTIC AIR TO INTRUDE SOUTHWARD ACROSS THE EASTERN PORTION OF THE COUNTRY. THIS WAS THE CASE IN JANUARY 2011 WHEN THE AREA EXPERIENCED ITS COLDEST AND SNOWIEST MONTH OF THE YEAR. 2011 WAS TIED FOR THE 2ND WARMEST YEAR ON RECORD AT COLUMBIA. ALTHOUGH NOT QUITE AS SIGNIFICANT...IT WAS THE 29TH WARMEST YEAR ON RECORD AT AUGUSTA. HOWEVER...IT WAS THE 4TH DRIEST YEAR ON RECORD AT AUGUSTA AND NOT AS SIGNIFICANT...THE 28TH DRIEST YEAR ON RECORD AT COLUMBIA. THE AVERAGE YEARLY TEMPERATURE WAS 65.9 DEGREES OR +2.0 DEGREES ABOVE THE NORMAL OF 63.9 DEGREES. THE WARMEST YEAR ON RECORD IS 1990 WITH AN AVERAGE TEMPERATURE OF 66.5 DEGREES. HERE ARE THE TOP 5 WARMEST YEARS ON RECORD AT COLUMBIA: 1. 66.5 DEGREES IN 1990 2. 65.9 DEGREES IN 2011 AND 1933 3. 65.7 DEGREES IN 1939 4. 65.6 DEGREES IN 1998 2011 WAS THE 4TH DRIEST YEAR ON RECORD AT AUGUSTA. THE TOTAL ANNUAL RAINFALL WAS 29.43 INCHES OR -14.14 INCHES BELOW NORMAL. NORMAL YEARLY RAINFALL FOR AUGUSTA BUSH FIELD IS 43.57 INCHES. AUGUSTA ONLY RECEIVED 68 PERCENT OF NORMAL RAINFALL FOR THE YEAR. HERE ARE THE TOP 5 DRIEST YEARS ON RECORD AT AUGUSTA: 1. 28.05 INCHES IN 1993 2. 28.18 INCHES IN 1931 3. 28.61 INCHES IN 2010 4. 29.43 INCHES IN 2011 5. 31.53 INCHES IN 1954 ...NOTICE THE 2010 AND 2011 BACK TO BACK DRY YEARS... CHECKING SOME OF THE YEARLY RAINFALL TOTALS FROM OUR COOPERATIVE WEATHER OBSERVERS MANY LOCATIONS RECEIVED AROUND 35 INCHES OF RAIN FOR THE YEAR. HERE ARE THE TOP 5 YEARLY COOP OBSERVER RAINFALL TOTALS: UNIV. OF SOUTH CAROLINA (USCS1)...47.10 INCHES SPRINGFIELD (SPRS1)...............44.43 INCHES SANDY RUN (SANS1).................42.50 INCHES BARNWELL (BNLS1)..................41.94 INCHES CHERAW (CEWS1)....................41.36 INCHES HERE ARE THE LOWEST 5 YEARLY COOP OBSERVER RAINFALL TOTALS: WAYNESBORO GA (WYNG1).............27.17 INCHES NEWBERRY WKDK (NWYS1).............29.89 INCHES APPLING 2NW GA (APLG1)............32.70 INCHES CLARKS HILL (CHDS1)...............32.84 INCHES EDGEFIELD 3NNE (EDGS1)............32.75 INCHES CHECKING SOME OF THE YEARLY RAINFALL TOTALS FROM OUR COCORAHS (COMMUNITY COLLABORATIVE RAIN...HAIL AND SNOW NETWORK) OBSERVERS...MOST RECEIVED BETWEEN 30 AND 35 INCHES OF RAIN DURING THE YEAR. HERE ARE SOME OF THE HIGHEST TOTALS RECORDED DURING THE YEAR: SC-RC-18 (BLYTHEWOOD 2.8 SW)......48.38 INCHES SC-LX-44 (GASTON 3.8 W)...........46.26 INCHES SC-LN-02 (FORT MILL 3.5 ENE)......44.18 INCHES SC-SM-01 (SUMTER 1.3 SE)..........43.88 INCHES SC-AK-14 (AIKEN 7.8 SSE)..........43.41 INCHES SC-CA-02 (GASTON 5.3 E)...........43.34 INCHES SC-FR-01 (WINNSBORO 0.1 NE).......43.10 INCHES SC-OR-03 (NORTH 0.3 W)............43.05 INCHES SC-CA-01 (ST. MATTHEWS 3.2 NE)....42.61 INCHES SC-AK-23 (AIKEN 1.0 SSW)..........42.59 INCHES 2011 RAINFALL TOTALS AT OFFICIAL NWS ASOS: COLUMBIA HAMILTON OWENS AIRPORT (CUB)...43.84 INCHES AUGUSTA DANIEL FIELD (DNL)..............41.13 INCHES ORANGEBURG AIRPORT (OGB)................37.40 INCHES COLUMBIA METRO AIRPORT (CAE)............36.62 INCHES AUGUSTA REGIONAL BUSH FIELD (AGS).......29.43 INCHES HERE ARE THE PEAK WIND GUSTS AT EACH NWS ASOS SITE FOR THE YEAR: COLUMBIA METRO AIRPORT (CAE)............75 MPH ON APRIL 5TH AUGUSTA REGIONAL BUSH FIELD (AGS).......68 MPH ON SEPTEMBER 15TH AUGUSTA DANIEL FIELD (DNL)..............62 MPH ON SEPTEMBER 15TH COLUMBIA HAMILTON OWENS AIRPORT (CUB)...60 MPH ON APRIL 5TH ORANGEBURG AIRPORT (OGB)................56 MPH ON JUNE 26TH SIGNIFICANT EVENTS FOR 2011... ...HOTTEST SUMMERS ON RECORD AT BOTH COLUMBIA AND AUGUSTA... TOP 11 HOTTEST SUMMERS ON RECORD AT COLUMBIA (JUNE/JULY/AUGUST) 1. 84.2 DEGREES 2011 2. 83.9 DEGREES 2010 3. 82.6 DEGREES 1993 AND 1986 4. 82.3 DEGREES 1998...1954 AND 1952 5. 81.9 DEGREES 1987 6. 81.8 DEGREES 1899 7. 81.7 DEGREES 1990 AND 1900 TOP 11 HOTTEST SUMMERS ON RECORD AT AUGUSTA (JUNE/JULY/AUGUST) 1. 83.7 DEGREES 2011 2. 83.4 DEGREES 1993 3. 82.9 DEGREES 2010 4. 82.6 DEGREES 1881 5. 82.5 DEGREES 1878 6. 82.4 DEGREES 1925 7. 82.3 DEGREES 1986 8. 82.2 DEGREES 1943 AND 1932 9. 82.1 DEGREES 1952 10.82.0 DEGREES 1934 ...THE NUMBER OF DAYS WHEN THE MAXIMUM TEMPERATURE REACHED 90 DEGREES OR HIGHER FOR THE YEAR. AT COLUMBIA THERE WERE 111 DAYS MAKING IT NUMBER 3 ON THE ALL TIME LIST. AT AUGUSTA THERE WERE 126 DAYS MAKING IT NUMBER 1 ON THE ALL TIME LIST. AT COLUMBIA: 1. 116 DAYS 2010 2. 113 DAYS 1954 3. 111 DAYS 2011 4. 106 DAYS 1990 5. 104 DAYS 1986 AT AUGUSTA: 1. 126 DAYS 2011 2. 118 DAYS 2010 3. 114 DAYS 1993 4. 111 DAYS 1990 5. 108 DAYS 1925 ...MONTHLY SIGNIFICANT WEATHER EVENTS... JANUARY 2011... THE BIGGEST SNOWFALL OF THE YEAR OCCURRED LATE ON THE 9TH INTO THE 10TH OF JANUARY. AN AREA OF LOW PRESSURE TRACKED FROM THE GULF OF MEXICO ACROSS NORTHERN FLORIDA AND NORTHEAST ALONG THE EAST COAST. THE EVENT BEGAN AS SNOW ACROSS THE REGION...BUT GRADUALLY TRANSITIONED TO SLEET THEN FREEZING RAIN AND FREEZING DRIZZLE DURING THE DAY OF THE 10TH. SNOWFALL TOTALS WERE VERY IMPRESSIVE FROM THE EVENT WITH A SHARP GRADIENT ACROSS THE MIDLANDS AND CENTRAL SAVANNAH RIVER AREA. ACROSS THE CENTRAL SAVANNAH RIVER AREA...SNOWFALL TOTALS RANGED FROM AROUND 6 INCHES IN NORTHERN LINCOLN COUNTY AND MCCORMICK COUNTY TO AROUND 1 INCH OR LESS ACROSS BURKE AND BARNWELL COUNTIES. ACROSS THE MIDLANDS...SNOWFALL TOTALS RANGED FROM 8 TO 10 INCHES ACROSS SALUDA...NEWBERRY AND FAIRFIELD COUNTIES TO AROUND 1 INCH OR LESS ACROSS CLARENDON...ORANGEBURG AND BAMBERG COUNTIES. THE AREAS THAT RECEIVED THE LEAST AMOUNT OF SNOW RECEIVED MORE SLEET AND FREEZING RAIN. A GLAZE OF FREEZING RAIN AND FREEZING DRIZZLE COATED THE SOUTHERN MIDLAND COUNTIES OF ORANGEBURG...BAMBERG AND BARNWELL AND THE SOUTHERN CENTRAL SAVANNAH RIVER AREA COUNTY OF BURKE WITH 1/2 INCH UP TO 3/4 INCH OF ICE. THE OFFICIAL SNOWFALL TOTAL AT COLUMBIA METRO AIRPORT WAS 3.0 INCHES AND AT AUGUSTA REGIONAL BUSH FIELD WAS 2.0 INCHES. FEBRUARY 2011... A WIDESPREAD SIGNIFICANT RAIN EVENT OCCURRED ON THE 4TH AND 5TH...WHEN AN AVERAGE OF 2 TO 3 INCHES OF RAIN FELL ACROSS THE REGION. A TOTAL OF 2.66 INCHES OF RAIN FELL AT COLUMBIA METROPOLITAN AIRPORT...AND 2.52 INCHES FELL AT AUGUSTA REGIONAL BUSH FIELD. THE 2.17 INCHES OF RAIN THAT FELL AT COLUMBIA ON FEBRUARY 4TH WAS A RECORD DAILY RAINFALL AMOUNT FOR THE DATE...AND WAS THE HIGHEST SINGLE DAY PRECIPITATION TOTAL AT COLUMBIA IN OVER A YEAR...SINCE DECEMBER 25 2009. OTHER NOTABLE RAINFALL TOTALS FOR THE FEBRUARY 4/5 EVENT INCLUDE: 3.37 IN...EDGEFIELD SC 3.22 IN...SARDIS GA 2.80 IN...COLUMBIA HAMILTON OWENS FIELD SC 2.23 IN...ORANGEBURG SC 2.01 IN...AUGUSTA DANIEL FIELD GA. MARCH 2011... THERE WERE TWO SIGNIFICANT EVENTS DURING THE MONTH OF MARCH. ON MARCH 9TH...A STRONG COLD FRONT APPROACHED THE REGION FROM THE WEST AND PRODUCED SEVERE THUNDERSTORMS ACROSS THE CENTRAL SAVANNAH RIVER AREA AND SOUTHERN MIDLANDS OF SOUTH CAROLINA. THE STORMS PRODUCED WINDS FROM 50 TO 70 KNOTS THAT BROUGHT DOWN LARGE LIMBS AND TREES. ON THE 19TH...A COLD FRONT MOVED FROM NORTH TO SOUTH ACROSS THE REGION. THE FRONT SPAWNED A CLUSTER OF SEVERE THUNDERSTORMS THAT MOVED FROM THE UPSTATE SOUTHEAST INTO THE MIDLANDS. THERE WAS A REPORT OF A FUNNEL CLOUD IN SALUDA COUNTY AS WELL AS QUARTER SIZE HAIL THAT COVERED THE GROUND. APRIL 2011... ...3RD WARMEST APRIL ON RECORD AT COLUMBIA... ...SIGNIFICANT HAIL EVENT OCCURRED ON THE 9TH... ...5 WEAK TORNADOES TOUCHED DOWN... IT WAS THE 3RD WARMEST APRIL ON RECORD AT COLUMBIA...WHERE THE AVERAGE TEMPERATURE WAS 67.8 DEGREES OR 4.6 DEGREES ABOVE NORMAL. THIS FOLLOWS 1893...WHEN THE AVERAGE TEMPERATURE WAS 69.0 DEGREES AND 1896...WHEN THE AVERAGE TEMPERATURE WAS 68.2 DEGREES. THE MONTH OF APRIL WAS A BUSY MONTH FOR SEVERE WEATHER ACROSS THE AREA. THERE WERE 5 SIGNIFICANT SEVERE WEATHER EVENTS DURING THE MONTH. 56 SEVERE THUNDERSTORM WARNINGS WERE ISSUED AND 6 TORNADO WARNINGS WERE ISSUED FOR THE COUNTY WARNING AREA (CWA). NEARLY 130 SEVERE WEATHER REPORTS WERE GATHERED DURING THE MONTH. ON APRIL 5TH...AN INTENSE SQUALL LINE DEVELOPED ACROSS GEORGIA AND THE CAROLINAS AHEAD OF A COLD FRONT. THERE WERE SEVERAL REPORTS OF STRAIGHT LINE WIND DAMAGE AND MICROBURST. THE SOUTH CAROLINA STATE EMERGENCY MANAGEMENT ESTIMATED TOTAL DAMAGE ACROSS SOUTH CAROLINA AROUND 4 MILLION DOLLARS. AREAS HIT THE HARDEST WERE: EDGEFIELD COUNTY; THE GREENVIEW AREA OF COLUMBIA AND NEAR WAYNESBORO IN BURKE COUNTY. WINDS WERE ESTIMATED TO BE NEAR 100 MPH IN THE MICROBURST. ON APRIL 9TH...SUPERCELL THUNDERSTORMS DEVELOPED AHEAD OF A BACK DOOR COLD FRONT. THE STORMS PRODUCED NUMEROUS REPORTS OF VERY LARGE HAIL ACROSS THE NORTHERN MIDLANDS AND PEE DEE REGION. HAIL LARGER THAN A BASEBALL WAS REPORTED. THERE WERE MANY REPORTS OF HAIL COVERING THE GROUND...DAMAGING HOMES...CARS AND CROPS. THE INSURANCE INDUSTRY ESTIMATED 45 MILLION DOLLARS OF DAMAGE ACROSS SOUTH CAROLINA. ON APRIL 16TH...SUPERCELL THUNDERSTORMS DEVELOPED AHEAD OF A COLD FRONT AND PRODUCED SEVERAL REPORTS OF LARGE HAIL AND 2 WEAK TORNADOES ACROSS THE EASTERN MIDLANDS AND PEE DEE REGION. AN EF0 TORNADO WAS CONFIRMED IN CLARENDON COUNTY AND AN EF1 TORNADO WAS CONFIRMED NEAR THE LAKE MARION DAM. APRIL 26TH...MULTI-CELLULAR THUNDERSTORMS DEVELOPED AHEAD OF A COLD FRONT AND PRODUCED REPORTS OF LARGE HAIL AND WIND DAMAGE ACROSS THE MIDLANDS AND THE PEE DEE REGION. APRIL 28TH...A STRONG LINE OF THUNDERSTORMS DEVELOPED AHEAD OF A COLD FRONT AND PRODUCED LARGE HAIL ALONG WITH NUMEROUS REPORTS OF STRAIGHT LINE WIND DAMAGE. 3 WEAK TORNADOES ALSO DEVELOPED ALONG BROKEN S SEGMENTS OF THE LINE ACROSS CALHOUN AND SUMTER COUNTIES. AN EF1 TORNADO WAS CONFIRMED IN CALHOUN COUNTY NEAR THE TOWN OF FT. MOTTE. AN EF1 TORNADO WAS CONFIRMED IN SUMTER COUNTY...JUST SOUTH OF THE CITY OF SUMTER. AN EF0 TORNADO WAS CONFIRMED IN SUMTER COUNTY NEAR THE COMMUNITY OF SHILOH. MAY 2011... AFTER A BUSY APRIL...MAY WAS ALSO A BUSY MONTH FOR SEVERE WEATHER. THERE WERE SEVERAL EVENTS WITH SEVERE WEATHER...BUT 4 EVENTS WERE WIDESPREAD. THERE WERE 42 SEVERE THUNDERSTORM WARNINGS ISSUED FOR THE COUNTY WARNING AREA (CWA). THERE WERE OVER 60 SEVERE WEATHER REPORTS GATHERED DURING THE MONTH. ON MAY 10-11TH...A MESOSCALE CONVECTIVE COMPLEX DEVELOPED IN THE MIDDLE AND UPPER LEVEL NORTHWEST FLOW ACROSS THE SOUTHEAST. THE COMPLEX OF STORMS MOVED SOUTHEAST ACROSS THE REGION DURING THE LATE EVENING AND OVERNIGHT HOURS. THE SEVERE THUNDERSTORMS MAINLY AFFECTED THE NORTHERN AND CENTRAL PORTION OF THE MIDLANDS. THERE WERE SEVERAL REPORTS OF TREES AND POWERLINES DOWN ALONG WITH QUARTER TO HALF DOLLAR SIZE HAIL. ON MAY 13TH...A BACKDOOR COLD FRONT SETTLED IN ACROSS THE NORTHERN AND CENTRAL PORTIONS OF THE CWA. SCATTERED THUNDERSTORMS DEVELOPED WITH SEVERAL OF THEM BECOMING SEVERE. THERE WERE SEVERAL REPORTS OF TREES DOWN AND HAIL UP TO GOLF BALL SIZE. ON MAY 26TH...SCATTERED THUNDERSTORMS DEVELOPED AHEAD OF AN APPROACHING COLD FRONT. SOME OF THESE STORMS BECAME SEVERE AND DOWNED TREES AND POWERLINES ALONG WITH QUARTER SIZE HAIL. ON MAY 27TH...AS THE COLD FRONT MOVED CLOSER TO THE REGION...ADDITIONAL THUNDERSTORMS DEVELOPED. SEVERAL OF THESE STORMS BECAME SEVERE DOWNING TREES AND PRODUCING 1 TO 2 INCH HAIL. ONE STORM PRODUCED A WIND GUST OF 53 MPH AT FLOTILLA ISLAND AT LAKE MURRAY AND A 51 MPH GUST AT THE COLUMBIA METRO AIRPORT. JUNE 2011... ...3RD WARMEST JUNE ON RECORD AT COLUMBIA... ...8TH WARMEST JUNE ON RECORD AT AUGUSTA... THE THEME FOR JUNE ACROSS THE REGION WAS THE PERSISTENT HEAT AND THE CONTINUED DRY CONDITIONS. TEMPERATURES AVERAGED NEARLY 5 TO 10 DEGREES ABOVE NORMAL FOR THE ENTIRE MONTH. IT WAS THE 3RD HOTTEST JUNE ON RECORD AT COLUMBIA AND THE 8TH HOTTEST JUNE ON RECORD AT AUGUSTA. THE DAILY HIGH TEMPERATURES FOR BOTH COLUMBIA AND AUGUSTA WERE 90 DEGREES OR ABOVE FOR EVERY DAY OF THE MONTH. THIS IS THE FIRST JUNE IN HISTORY AT COLUMBIA WHERE EVERY DAY THE HIGH TEMPERATURE WAS 90 DEGREES OR HIGHER. IT IS THE SECOND JUNE ON RECORD FOR AUGUSTA WHERE EVERYDAY WAS 90 DEGREES OR HIGHER. THE ONLY OTHER YEAR WAS JUNE 1952. SEVERE WEATHER CONTINUED INTO JUNE ACROSS THE AREA. AT LEAST ONE WARNING OR MORE WAS ISSUED ON 18 OF THE 30 DAYS DURING THE MONTH. THERE WERE OVER 90 SEVERE THUNDERSTORM WARNINGS ISSUED FOR THE MONTH AND OVER 200 REPORTS OF SEVERE WEATHER RECEIVED AT THE OFFICE. MOST OF THE EVENTS INVOLVED STRONG DAMAGING WINDS THAT BROUGHT DOWN TREES AND POWERLINES. THERE WERE ALSO SEVERAL EVENTS WHERE LARGE HAIL WAS OBSERVED. THE AREA ASOS AND AWOS SYSTEMS RECORDED SOME VERY STRONG WIND GUSTS ASSOCIATED WITH THE STORMS. AS SEVERE STORMS MOVED ACROSS FORT GORDON NEAR AUGUSTA ON JUNE 15TH...24 SOLDIERS WERE INJURED FROM DEBRIS CRASHING ONTO THEIR TENTS FROM THE STRONG WINDS. LIGHTNING PRODUCED BY A THUNDERSTORM ACROSS NORTHERN CHESTERFIELD COUNTY NEAR THE TOWN OF RUBY ON JUNE 21ST STRUCK 4 PEOPLE AT A SOFTBALL FIELD. ONE OF THE PEOPLE DIED AND 2 OTHERS WERE TREATED AND RELEASED. LIGHTNING PRODUCED BY A THUNDERSTORM OVER DOWNTOWN COLUMBIA STRUCK A TREE WHERE 5 LANDSCAPE AND MAINTENANCE WORKERS WERE RESTING. TWO WORKERS WERE STRUCK BY LIGHTNING AND THE OTHER 3 WORKERS WERE SHAKEN UP BY THE EVENT. ONE OF THE WORKERS WAS TREATED AND RELEASED. JULY 2011... ...3RD WARMEST JULY ON RECORD AT COLUMBIA... ...6TH WARMEST JULY TIED AT AUGUSTA... ON THE EVENING OF JULY 10TH...A NEARLY STATIONARY THUNDERSTORM PRODUCED 2.80 INCHES OF RAIN AT AUGUSTA DANIEL FIELD...MOST OF WHICH FELL IN JUST ONE HOUR. AUGUSTA DANIEL FIELD ENDED UP WITH A TOTAL OF 8.69 INCHES OF RAIN FOR THE MONTH. A TYPICAL SCATTERING OF SEVERE THUNDERSTORMS OCCURRED ON SOME DAYS...MAINLY ON THE 2ND...5TH...6TH...AND 13TH...RESULTING MAINLY IN DOWNED TREES AND POWER LINES AT SOME LOCATIONS. A THUNDERSTORM PRODUCED A 59 MPH WIND GUST AT AIKEN AIRPORT ON THE 13TH. A HIGH TEMPERATURE OF 107 WAS OBSERVED AT THE UNIVERSITY OF SOUTH CAROLINA IN DOWNTOWN COLUMBIA ON THE 22ND. AUGUST 2011... ...3RD WARMEST AUGUST ON RECORD AT COLUMBIA AND AUGUSTA... ...5TH DRIEST AUGUST ON RECORD AT AUGUSTA... ...3 FLASH FLOOD EVENTS ALONG ROCKY BRANCH CREEK IN COLUMBIA... ...FIRST TROPICAL SYSTEM TO EFFECT THE STATE...HURRICANE IRENE... TYPICALLY SEVERE WEATHER BEGINS TO DECLINE DURING AUGUST AS COMPARED TO THE SPRING AND EARLY SUMMER MONTHS. HOWEVER...DURING AUGUST 45 SEVERE THUNDERSTORM WARNINGS WERE ISSUED ALONG WITH 7 FLASH FLOOD WARNINGS. THERE WERE SEVERAL SEVERE WEATHER EVENTS DURING THE MONTH. MOST OF THE EVENTS INVOLVED STRONG DAMAGING WINDS THAT BROUGHT DOWN TREES AND POWERLINES. THE AREA ASOS AND OTHER OFFICIAL NWS SYSTEMS RECORDED SOME VERY STRONG WIND GUSTS ASSOCIATED WITH THE STORMS. ON THE 5TH...THUNDERSTORMS DEVELOPED ALONG A WEAK FRONTAL BOUNDARY AND PRODUCED LOCALLY HEAVY RAIN ACROSS THE MIDLANDS. ROCKY BRANCH CREEK IN COLUMBIA CRESTED AT 8.7 FEET (FLOOD STAGE IS 7.2 FEET) AT PICKENS STREET. THIS PRODUCED 2 TO 5 FEET OF WATER ON SOME ROADWAYS INCLUDING THE 5 POINTS AREA AND THE WHALEY ST. AND MAIN ST. AREAS. ON THE 9TH...A FEW SEVERE THUNDERSTORMS DEVELOPED ALONG A WEAK FRONTAL BOUNDARY. THE STORMS DOWNED TREES AND POWER LINES ACROSS THE CENTRAL MIDLANDS. IN ORANGEBURG COUNTY 2 MOBILE HOMES WERE DAMAGED AS THEY WERE STRUCK BY FALLEN TREES. ON THE 11TH...THUNDERSTORMS DEVELOPED AND PRODUCED LOCALLY HEAVY RAIN ACROSS THE MIDLANDS ALONG WITH A FEW STORMS BECOMING SEVERE. SEVERE STORMS DOWNED TREES IN NEWBERRY...KERSHAW AND RICHLAND COUNTIES. ALONG ROCKY BRANCH CREEK IN COLUMBIA FLOODING WAS REPORTED AS THE CREEK CRESTED AT 8.1 FEET (FLOOD STAGE IS 7.2 FEET) AT WHALEY ST AND MAIN ST. THE WATER ROSE TO 4 TO 6 FEET IN SOME AREAS SUBMERGING A FEW VEHICLES. ON THE 12TH-13TH AND 14TH...A STALLED FRONTAL BOUNDARY PRODUCED SEVERE THUNDERSTORMS ACROSS THE MIDLANDS AND CENTRAL SAVANNAH RIVER AREA. THE STORMS DOWNED TREES AND POWER LINES ACROSS THE AREA. ONE THUNDERSTORM PRODUCED A 63 MPH WIND GUST AT AUGUSTA REGIONAL BUSH FIELD. ON THE 21ST...A FEW SEVERE THUNDERSTORMS DOWNED TREES ACROSS ORANGEBURG AND CHESTERFIELD COUNTIES. ON THE 26TH-27TH...HURRICANE IRENE WAS A CATEGORY 2 HURRICANE AS IT MOVED NORTHWARD OFF THE SOUTH CAROLINA COAST ON THE 26TH...THEN WEAKENED TO A CATEGORY 1 HURRICANE AS IT APPROACHED THE NORTH CAROLINA COAST ON THE 27TH MAKING LANDFALL NEAR CAPE LOOKOUT. IRENE MAINLY AFFECTED THE COASTAL AREAS OF THE STATE...HOWEVER SOME OF THE RAINFALL MADE IT AS FAR WEST AS THE EASTERN MIDLANDS ALONG THE I-95 CORRIDOR. THE HIGHEST WIND GUST RECORDED ALONG THE COAST WAS 62 MPH ON THE 26TH AT THE SPRINGMAID PIER IN MYRTLE BEACH. THE HIGHEST WIND GUST RECORDED INLAND ON THE 26TH WAS AT THE FLORENCE AIRPORT...43 MPH. ON THE 29TH...SEVERE THUNDERSTORMS DEVELOPED ACROSS THE CENTRAL AND EASTERN MIDLANDS DOWNING TREES AND POWER LINES IN MANY AREAS. THE STORMS ALSO PRODUCED LOCALLY HEAVY RAIN IN DOWNTOWN COLUMBIA CAUSING ROCKY BRANCH CREEK TO RISE QUICKLY AT WHALEY ST. AND MAIN ST. THE CREEK CRESTED AT 8.2 FEET (FLOOD STAGE IS 7.2 FEET). SEPTEMBER 2011... ...3 FLASH FLOOD EVENTS ALONG ROCKY BRANCH CREEK IN COLUMBIA... ...LOCALLY HEAVY RAIN RECORDED AT SOME SITES DURING THE MONTH... OFTEN SEVERE WEATHER AND HEAVY RAIN EVENTS DURING THE MONTH OF SEPTEMBER ARE ASSOCIATED WITH TROPICAL SYSTEMS...BUT THAT WAS NOT THE CASE IN 2011. FROM THE 20TH THROUGH THE 27TH...A FRONTAL BOUNDARY STALLED JUST WEST OF THE AREA. THE MID/UPPER FLOW ACROSS THE AREA WAS FROM THE SOUTH AND SOUTHWEST WITH A LOW LEVEL FLOW FROM THE SOUTHEAST AND SOUTH. THIS PRODUCED HIGH PRECIPITABLE WATER VALUES NEAR 2 INCHES AND HIGH RELATIVE HUMIDITY VALUES. THIS PRODUCED 3 FLOOD EVENTS ALONG ROCKY BRANCH CREEK IN COLUMBIA. THE THIRD EVENT PRODUCED THE HIGHEST GAUGE READINGS OBSERVED ALONG THE CREEK SINCE THEY WERE INSTALLED IN 2007. CHECKING SOME OF THE MONTHLY RAINFALL TOTALS FROM OUR COOPERATIVE WEATHER OBSERVERS AND COCORAHS (COMMUNITY COLLABORATIVE RAIN...HAIL AND SNOW NETWORK) OBSERVERS MANY LOCATIONS RECEIVED OVER 5 INCHES OF RAIN DURING THE MONTH. HERE ARE SOME OF THE HIGHEST COOP TOTALS RECORDED DURING THE MONTH: UNIV. OF SOUTH CAROLINA (USCS1)...9.09 INCHES SUMTER (SMRS1)....................6.18 INCHES SANDHILL RESEARCH CTR (SAHS1).....5.63 INCHES HOLLY HILL (HHLS1)................5.52 INCHES CHESTERFIELD (CTFS1)..............5.32 INCHES ORANGEBURG (ORBS1)................5.23 INCHES SANDY RUN (SANS1).................5.19 INCHES BATESBURG (BATS1).................5.12 INCHES RIMINI (RIMS1)....................5.03 INCHES HERE ARE SOME OF THE HIGHEST COCORAHS TOTALS RECORDED DURING THE MONTH: SC-RC-28 (COLUMBIA 2.7 NNW).......7.94 INCHES SC-CA-02 (GASTON 5.3 E)...........7.22 INCHES SC-RC-30 (HOPKINS 3.9 NNE)........7.05 INCHES SC-LX-43 (LEXINGTON 1.2 SW).......6.60 INCHES SC-SM-01 (SUMTER 1.3 SE)..........6.55 INCHES SC-NW-04 (PEAK 0.4 SSE)...........6.31 INCHES SC-LX-05 (LEXINGTON 1.6 WNW)......6.26 INCHES SC-OR-03 (NORTH 0.3 W)............6.10 INCHES ON THE 5TH...THE REMNANTS OF TROPICAL STORM LEE APPROACHED THE AREA FROM THE SOUTHWEST AND MERGED WITH A FRONTAL BOUNDARY. THIS PRODUCED SEVERE THUNDERSTORMS ACROSS THE MIDLANDS. THERE WAS ONE CONFIRMED TORNADO...AN EF0 TORNADO IN NEWBERRY COUNTY. THE TRACK LENGTH WAS 100 YARDS LONG WITH A WIDTH OF 50 YARDS AND WINDS OF 65 TO 75 MPH. THE TORNADO MAINLY DAMAGED A SMALL AREA OF TREES. THE OTHER SEVERE THUNDERSTORMS PRODUCED NUMEROUS REPORTS OF DOWNED TREES AND POWER LINES. ON THE 15TH...A COUPLE OF ISOLATED SEVERE THUNDERSTORMS ACROSS THE SOUTHERN MIDLANDS AND CENTRAL SAVANNAH RIVER DOWNED A COUPLE OF TREES AND POWERLINES. AT AUGUSTA REGIONAL BUSH FIELD THEY RECORDED A SUSTAINED WIND OF 44 MPH WITH A GUST TO 68 MPH. ON THE 21ST...THIS WAS THE FIRST OF THE 3 FLOODING EVENTS IN COLUMBIA ALONG ROCKY BRANCH CREEK. THE NWS RAIN GAUGE AT USC RECEIVED 1.78 INCHES OF RAIN IN APPROXIMATELY 1 HOUR. A PERSON IN THE MELROSE HEIGHTS AREA REPORTED 3.50 INCHES OF RAIN. THIS PRODUCED SOME FLOODING IN PORTIONS OF DOWNTOWN COLUMBIA INCLUDING THE 5 POINTS AREA. THE GAUGE ALONG ROCKY BRANCH CREEK AT PICKENS ST. CRESTED AT 9.5 FEET (FLOOD STAGE IS 7.2 FT.) AND THE GAUGE AT WHALEY ST. CRESTED AT 10.5 FEET. (FLOOD STAGE IS 7.2 FEET). ON THE 23RD...THIS WAS THE SECOND OF THE 3 FLOODING EVENTS IN COLUMBIA ALONG ROCKY BRANCH CREEK. THE NWS RAIN GAUGE AT USC RECEIVED 2.24 INCHES IN JUST UNDER 90 MINUTES. THIS PRODUCED FLOODING IN DOWNTOWN COLUMBIA IN THE AREAS OF WHALEY ST. AND MAIN ST. ALONG WITH OVERFLOWING SEWERS IN THE ROSEWOOD COMMUNITY. THE GAUGE ALONG ROCKY BRANCH CREEK AT PICKENS ST. CRESTED AT 9.2 FEET (FLOOD STAGE IS 7.2 FT.) AND THE GAUGE AT WHALEY ST. CRESTED AT 10.5 FEET (FLOOD STAGE IS 7.2 FT.). ON THE 25TH...THE THIRD EVENT OF FLOODING IN DOWNTOWN COLUMBIA AND ALONG ROCKY BRANCH CREEK WAS THE WORST. RAINFALL RATES ASSOCIATED WITH THE HEAVY RAINFALL WERE NEAR 50 YEAR RAINFALL RATES. AT THE NWS RAIN GAUGE AT USC...3.31 INCHES OF RAIN FELL IN UNDER 90 MINUTES. THIS PRODUCED FLOODING IN MANY AREAS OF DOWNTOWN COLUMBIA...ESPECIALLY IN THE 5 PTS AREA...WHALEY ST. AREA...SHOP RD. AREA...WOODROW ST. AREA...ROSEWOOD AREA AND THE BELTLINE BLVD. AREA. THERE WERE REPORTS OF CARS EITHER SUBMERGED OR STRANDED IN THE HIGH WATER IN MANY LOCATIONS. A PERSON IN THE UNIVERSITY HILL AREA REPORTED 3.50 INCHES OF RAIN AND A PERSON IN THE SHANDON COMMUNITY REPORTED 3.25 INCHES OF RAIN WITH THE EVENT. THE GAUGE ALONG ROCKY BRANCH CREEK AT PICKENS ST. CRESTED AT 11.1 FEET (FLOOD STAGE IS 7.2 FT.) AND THE GAUGE AT WHALEY ST. CRESTED AT 12.4 FEET (FLOOD STAGE IS 7.2 FT.). THESE CRESTS ARE THE HIGHEST SINCE THE STREAM GAUGE NETWORK WAS INSTALLED A FEW YEARS AGO. ADDITIONAL FLOODING OCCURRED IN SUMTER WITH A RESIDENCE AND APARTMENT BUILDING NEARLY FLOODED. THE STORMS THAT PRODUCED THE HEAVY RAIN ALSO PRODUCED SEVERE WEATHER. THERE WERE NUMEROUS REPORTS OF DOWNED TREES ACROSS THE MIDLANDS. A 55 MPH WIND GUST WAS RECORDED AT COLUMBIA METRO AIRPORT AND A 51 MPH WIND GUST WAS RECORDED AT COLUMBIA OWENS FIELD. ON THE 27TH...A CLUSTER OF SEVERE THUNDERSTORMS MOVED ACROSS THE NORTHERN CENTRAL SAVANNAH RIVER AREA EASTWARD TO THE MIDLANDS. THE STORMS PRODUCED DAMAGING WINDS AND THERE WERE NUMEROUS REPORTS OF DOWNED TREES AND POWER LINES. IN NEWBERRY COUNTY A TREE FELL ON A CAR WITH 2 PEOPLE INSIDE...THE PEOPLE SUFFERED MINOR INJURIES. THE STORMS ALSO PRODUCED LARGE HAIL IN AIKEN COUNTY. HAIL UP TO 2 INCHES IN DIAMETER...LARGER THAN A GOLF BALL...COVERED THE GROUND NORTH OF THE TOWN OF AIKEN. AT FLOTILLA ISLAND...A WIND GUST OF 41 MPH WAS RECORDED AS THE STORMS MOVED OVER LAKE MURRAY. OCTOBER 2011... ...FIRST FROST OF THE FALL SEASON AT MANY SITES ACROSS THE AREA... ON THE 13TH...SCATTERED THUNDERSTORMS...SOME SEVERE...PRODUCED NUMEROUS REPORTS OF WIND DAMAGE ACROSS THE CENTRAL SAVANNAH RIVER AREA NORTHEAST INTO THE CENTRAL MIDLANDS. THE STORMS WERE MOVING VERY FAST WITH AN AVERAGE SPEED NEAR 50 MPH. THE STORMS DOWNED NUMEROUS TREES AND POWERLINES. IN MCDUFFIE COUNTY...NEAR THOMSON... A TREE FELL ON A MOBILE HOME. IN COLUMBIA COUNTY...IN THE SPRING LAKES SUBDIVISION...A TREE FELL ON A TRUCK. FORTUNATELY...NO ONE WAS INJURED DURING THE EVENT. ON THE 18TH-19TH...A DEEP CLOSED LOW AND A STRONG ASSOCIATED SURFACE LOW PRESSURE AREA MOVED ACROSS THE SOUTHEAST AND PRODUCED 1 TO 1.50 INCHES OF RAINFALL ACROSS THE AREA. ON THE 30TH...A COLD AIRMASS SETTLED IN OVER THE AREA AND PRODUCED THE FIRST FROST AND FREEZING TEMPERATURES. HERE ARE SOME OF THE MORNING LOWS ON THE 30TH: PELION (PLNS1)......................27 DEGREES CEDAR CREEK (BLYS1).................28 DEGREES AUGUSTA REGIONAL BUSH FIELD (AGS)...30 DEGREES LUGOFF (LUGS1)......................30 DEGREES SALUDA (SADS1)......................30 DEGREES NOVEMBER 2011... ...FIRST SNOWFALL OF WINTER 2012 AT CAESARS HEAD ON THE 29TH... ...SEVERE WEATHER ON THE 16TH... THE FIRST SNOWFALL OF THE SEASON OCCURRED ON THE 29TH AT CAESARS HEAD STATE PARK IN NORTHERN GREENVILLE COUNTY NEAR THE NORTH CAROLINA STATE LINE. THE PARK RECEIVED ABOUT ONE INCH OF SNOW. ON THE 16TH...A VIGOROUS SQUALL LINE THAT DEVELOPED AHEAD OF A COLD FRONT PUSHED ACROSS THE REGION ON THE AFTERNOON AND EVENING OF THE 16TH. THE STORMS PRODUCED NUMEROUS REPORTS OF DOWNED TREES AND DAMAGE TO STRUCTURES ACROSS THE CENTRAL SAVANNAH RIVER AREA INTO THE SOUTHERN AND EASTERN MIDLANDS. THE STORMS PRODUCED WINDS FROM 75 TO 90 MPH ACROSS THOSE AREAS. THERE WERE 3 CONFIRMED TORNADOES WITH THIS EVENT. AN EF0 TORNADO (WINDS 65-85 MPH) TOUCHED DOWN NEAR HEPHZIBAH IN RICHMOND COUNTY. THE TORNADO MAINLY DAMAGED TREES IN THE AREA. THE LENGTH WAS AROUND 1 MILE AND THE WIDTH WAS AROUND 40 YARDS. A STRONG EF1 TORNADO (WINDS 86-110 MPH) TOUCHED DOWN IN BURKE COUNTY. THE LENGTH WAS AROUND 6 1/2 MILES AND THE WIDTH AROUND 100 YARDS. THE TORNADO DAMAGED TREES...A COUPLE OF HOMES AND OVERTURNED A RECREATIONAL VEHICLE. ANOTHER EF0 TORNADO (WINDS 65-85 MPH) TOUCHED DOWN IN AIKEN COUNTY IN THE SAVANNAH RIVER SITE COMPLEX. THE LENGTH WAS AROUND 7 MILES AND A WIDTH AROUND 70 YARDS. THE TORNADO DAMAGED SOME TREES AND OVERTURNED A COUPLE OF OUT BUILDINGS. TWO MICROBURSTS ALSO OCCURRED WITH THE STORMS. ONE HIT THE BEECH ISLAND AREA OF AIKEN COUNTY DAMAGING TREES AND OVERTURNING TWO MOBILE HOMES. THE OTHER OCCURRED NEAR ALCOLU IN CLARENDON COUNTY DAMAGING NUMEROUS TREES ALONG WITH A WORKSHOP AND GARAGE. THE WINDS IN BOTH MICROBURSTS WERE ESTIMATED BETWEEN 85 AND 95 MPH. DECEMBER 2011... ...10TH DRIEST DECEMBER ON RECORD AT COLUMBIA... ON THE 26TH-27TH...A CLOSED LOW ACROSS WEST TEXAS BEGAN TO OPEN UP AND MOVE NORTHEAST THROUGH THE PERIOD. AN AREA OF LOW PRESSURE AND ASSOCIATED COLD FRONT WITH THE SYSTEM PRODUCED WIDESPREAD RAIN ACROSS THE REGION. MANY OF THE AMOUNTS RANGED FROM 1 TO 1 1/2 INCHES. THE SYSTEM ALSO PRODUCE SOME ISOLATED SEVERE WEATHER AS A SQUALL LINE DEVELOPED AHEAD OF THE STRONG COLD FRONT MOVED ACROSS THE REGION ON THE 27TH. THE WINDS ASSOCIATED WITH THE SQUALL LINE BROUGHT DOWN LARGE BRANCHES IN ORANGEBURG AND A TREE DOWN NEAR FORT JACKSON AND ALSO A TREE DOWN IN SANTEE. THERE WAS A PEAK WIND GUST AT FLOTILLA ISLAND ON LAKE MURRAY OF 41 MPH AND A PEAK WIND GUST OF 40 MPH AT SHAW AFB AS THE LINE PASSED THROUGH THE REGION. ON THE 29TH...A COLD AIRMASS SETTLED IN OVER THE AREA AND PRODUCED WIDESPREAD TEMPERATURES IN THE 20S. HERE ARE SOME OF THE MORNING LOWS ON THE 29TH: PELION (PLNS1)......................19 DEGREES CEDAR CREEK (BLYS1).................22 DEGREES CHESTERFIELD (CTFS1)................24 DEGREES LUGOFF 2 NE (LUGS1).................24 DEGREES TEMPERATURES... HIGHEST AND LOWEST RECORDED DAILY TEMPERATURES FOR 2011 AT EACH NWS ASOS SITE: HIGHEST TEMPERATURES... AUGUSTA REGIONAL BUSH FIELD (AGS).......105 DEGREES ON AUGUST 3RD COLUMBIA METRO AIRPORT (CAE)............104 DEGREES ON JULY 22ND AND 23RD. COLUMBIA HAMILTON OWENS AIRPORT (CUB)...104 DEGREES ON AUGUST 3RD AUGUSTA DANIEL FIELD (DNL)..............103 DEGREES ON AUGUST 3RD ORANGEBURG AIRPORT (OGB)................102 DEGREES ON JULY 20TH...JULY 22ND AND AUGUST 3RD LOWEST TEMPERATURES... AUGUSTA REGIONAL BUSH FIELD (AGS).......15 DEGREES ON JANUARY 14TH COLUMBIA METRO AIRPORT (CAE)............17 DEGREES ON JANUARY 14TH ORANGEBURG AIRPORT (OGB)................18 DEGREES ON JANUARY 14TH COLUMBIA HAMILTON OWENS AIRPORT (CUB)...20 DEGREES ON JANUARY 14TH AUGUSTA DANIEL FIELD (DNL)..............21 DEGREES ON JANUARY 13TH COLUMBIA SC METROPOLITAN AIRPORT (CAE) AVERAGE TEMPERATURE... AVG HIGH/DEEP AVG LOW/DEEP AVG TEMP NORMAL DEPARTURE JAN 2010 52.4/-2.7 29.6/-4.4 41.0 44.6 -3.6 FEB 51.8/-7.7 31.2/-5.1 41.5 47.9 -6.4 MAR 65.7/-1.7 41.1/-2.4 53.4 55.4 -2.0 APR 80.3/+4.6 51.3/+0.6 65.8 63.2 +2.6 MAY 86.6/+3.5 65.3/+5.3 76.0 71.6 +4.4 JUN 94.6/+5.5 72.8/+4.9 83.7 78.5 +5.2 JUL 95.1/+3.0 73.7/+1.9 84.4 82.0 +2.4 AUG 92.3/+2.3 74.6/+4.6 83.5 80.3 +3.2 SEP 91.3/+6.5 66.6/+2.0 78.9 74.7 +4.2 OCT 79.8/+4.0 51.2/-0.3 65.5 63.7 +1.8 NOV 68.3/+1.6 41.9/-0.7 55.1 54.7 +0.4 DEC 51.1/-6.7 28.2/-7.9 39.6 47.0 -7.4 ANNUAL 75.8/+0.5 52.3/+0.7 64.0 63.6 +0.4 JAN 2011 52.7/-2.4 30.7/-5.5 41.7 44.6 -2.9 FEB 64.6/+5.1 39.7/+3.4 52.2 47.9 +4.3 MAR 68.6/+1.2 45.7/+2.2 57.1 55.4 +1.7 APR 80.9/+5.2 54.6/+3.9 67.8 63.2 +4.6 MAY 85.5/+2.4 62.8/+2.8 74.2 71.6 +2.6 JUN 95.2/+6.1 71.4/+3.5 83.3 78.5 +4.8 JUL 96.4/+3.7 74.6/+3.0 85.5 82.2 +3.3 AUG 94.5/+3.8 73.0/+2.0 83.8 80.8 +3.0 SEP 86.9/+1.7 65.9/+1.7 76.4 74.7 +1.7 OCT 74.7/-1.4 49.3/-2.8 62.0 64.1 -2.1 NOV 69.2/+1.9 42.1/-0.2 55.6 54.8 +0.8 DEC 64.4/+6.2 38.7/+3.4 51.5 46.7 +4.8 ANNUAL 77.8/+2.3 54.0/+1.6 65.9 63.9 +2.0 AUGUSTA GA BUSH FIELD (AGS) AVERAGE TEMPERATURE... AVG HIGH/DEEP AVG LOW/DEEP AVG TEMP NORMAL DEPARTURE JAN 2010 53.9/-2.6 29.5/-3.6 41.7 44.8 -3.1 FEB 53.6/-7.7 30.6/-4.9 42.1 48.4 -6.3 MAR 66.0/-3.2 39.5/-3.0 52.8 55.9 -3.1 APR 80.9/+4.2 47.7/+0.4 64.3 62.4 +1.9 MAY 86.9/+3.0 61.4/+4.2 74.2 70.5 +3.7 JUN 95.9/+6.3 69.6/+4.2 82.8 77.5 +5.3 JUL 95.8/+3.8 71.5/+1.9 83.6 80.8 +2.8 AUG 92.4/+2.2 72.2/+4.3 82.3 79.3 +3.0 SEP 91.5/+6.2 61.9/-0.5 76.7 73.8 +2.9 OCT 81.1/+4.6 47.3/-2.3 64.2 63.1 +1.1 NOV 70.1/+2.3 39.7/-1.2 54.9 54.4 +0.5 DEC 52.9/-6.2 26.0/-8.7 39.4 46.9 -7.5 ANNUAL 76.8/+1.1 49.7/-1.0 63.2 63.2 0.0 JAN 2011 54.1/-2.4 29.2/-3.9 41.7 44.8 -3.1 FEB 65.9/+4.6 36.9/+1.4 51.4 48.4 +3.0 MAR 71.4/+2.2 43.9/+1.4 57.6 55.9 +1.7 APR 82.6/+5.9 51.6/+3.5 67.1 62.4 +4.7 MAY 86.7/+2.8 57.7/+0.5 72.2 70.5 +1.7 JUN 96.2/+6.6 67.9/+2.5 82.0 77.5 +4.5 JUL 97.3/+3.9 71.8/+2.0 84.6 81.6 +3.0 AUG 97.7/+5.9 71.0/+1.7 84.4 80.5 +3.9 SEP 88.8/+2.1 62.7/+0.1 75.7 74.6 +1.1 OCT 75.4/-2.3 46.4/-4.6 60.9 64.4 -3.5 NOV 70.6/+1.5 39.9/-1.5 55.3 55.2 -0.1 DEC 64.7/+4.7 36.8/+2.3 50.7 47.2 +3.5 ANNUAL 79.3/+2.4 51.3/+0.3 65.3 63.9 +1.4 PRECIPITATION... COLUMBIA METRO AIRPORT PRECIPITATION... TOTAL NORMAL DIFFERENCE (INCHES) JANUARY 2010 3.18 4.66 -1.48 FEBRUARY 2.88 3.84 -0.96 MARCH 2.34 4.59 -2.25 APRIL 0.91 2.98 -2.07 MAY 2.10 3.17 -1.07 JUNE 4.20 4.99 -0.79 JULY 7.70 5.54 +2.16 AUGUST 5.56 5.41 +0.15 SEPTEMBER 1.94 3.94 -2.00 OCTOBER 1.83 2.89 -1.06 NOVEMBER 1.46 2.88 -1.42 DECEMBER 1.40 3.38 -1.98 ANNUAL 35.50 48.27 -12.77 JANUARY 2011 1.70 4.66 -2.96 FEBRUARY 4.21 3.84 +0.37 MARCH 4.00 4.59 -0.59 APRIL 2.76 2.98 -0.22 MAY 2.74 3.17 -0.43 JUNE 2.87 4.99 -2.12 JULY 6.17 5.46 +0.71 AUGUST 4.01 5.26 -1.25 SEPTEMBER 3.36 3.54 -0.18 OCTOBER 2.01 3.17 -1.16 NOVEMBER 1.68 2.74 -1.06 DECEMBER 1.11 3.22 -2.11 ANNUAL 36.62 44.59 -7.97 AUGUSTA BUSH FIELD PRECIPITATION... TOTAL NORMAL DIFFERENCE (INCHES) JANUARY 2010 5.39 4.50 +0.89 FEBRUARY 2.37 4.11 -1.74 MARCH 3.20 4.61 -1.41 APRIL 1.20 2.94 -1.74 MAY 1.36 3.07 -1.71 JUNE 2.19 4.19 -2.00 JULY 5.86 4.07 +1.79 AUGUST 2.04 4.48 -2.44 SEPTEMBER 1.89 3.59 -1.70 OCTOBER 0.67 3.20 -2.53 NOVEMBER 1.30 2.68 -1.38 DECEMBER 1.17 3.14 -1.97 ANNUAL 28.61 44.58 -15.97 JANUARY 2011 2.11 4.50 -2.39 FEBRUARY 4.31 4.11 +0.20 MARCH 5.45 4.61 +0.84 APRIL 1.93 2.94 -1.01 MAY 2.50 3.07 -0.57 JUNE 1.98 4.19 -2.21 JULY 4.05 4.33 -0.28 AUGUST 1.19 4.32 -3.13 SEPTEMBER 1.56 3.22 -1.66 OCTOBER 1.47 3.27 -1.80 NOVEMBER 1.63 2.82 -1.19 DECEMBER 1.28 3.39 -2.11 ANNUAL 29.43 43.57 -14.14 .NOTE... TEMPERATURE RECORDS FOR COLUMBIA GO BACK TO 1887 AND FOR AUGUSTA BACK TO 1873. PRECIPITATION RECORDS FOR COLUMBIA GO BACK TO 1878 AND FOR AUGUSTA BACK TO 1871. ADDITIONAL CLIMATE INFORMATION...INCLUDING CURRENT AND ARCHIVED DAILY AND MONTHLY SUMMARIES...CAN BE FOUND ON THE NATIONAL WEATHER SERVICE COLUMBIA SC HOME PAGE AT HTTP://WWW.WEATHER.GOV/CAE . $$ VAUGHAN


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