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| Strong Winds of Dec 23rd, 2007 |
Strong winds crossed the region on Dec 23rd, as a cold front raced through from the west. This storm system had unusually strong winds associated with it, which helped to drive unseasonably warm and moist air into the region. Many places around Harrisburg had highs on Sunday (the 23rd) in the 50s and some were even over 60°F. Harrisburg International Airport (KMDT) reached 62°F, which was only three degrees below the record high of 65°F set in 1990.
Sporadic reports of wind damage occurred as the strong winds just above the surface mixed down at the back edge of the main rain shield, which was out ahead of the cold front. See the soundings below - including a special 18z balloon release - from KLWX (Washington DC). The winds were up to 70 knots just a few thousand feet above the ground.
Very little lightning and thunder happened with the rain as it moved through, as the clouds were very warm, and bore little ice.
There was about an inch of rain in many locations, which pushed some waterways high. Williamsport Airport (KIPT) set a record for the most rain for any Dec 23rd on record (1.35 inches). A few of the smaller creeks and streams came out of their banks, especially where the ice and snow that was on the ground melted to combine with the rain, and caused local drainages to fill quickly. Most of the smaller streams went back in their banks very quickly.
Here is a preliminary list of some of the damage that happened near Harrisburg on Sunday afternoon:
NWUS51 KCTP 232142
LSRCTP
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
441 PM EST SUN DEC 23 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0325 PM NON-TSTM WND DMG 1 SW BERWICK 41.05N 76.26W
12/23/2007 COLUMBIA PA LAW ENFORCEMENT
TELEPHONE POLE KNOCKED DOWN DUE TO WIND.
0410 PM NON-TSTM WND DMG CARLISLE 40.20N 77.20W
12/23/2007 CUMBERLAND PA EMERGENCY MNGR
TREES AND WIRES DOWN.
0425 PM NON-TSTM WND DMG CAMP HILL 40.24N 76.93W
12/23/2007 CUMBERLAND PA EMERGENCY MNGR
TREES AND WIRES DOWN.
0425 PM NON-TSTM WND DMG MIDDLETOWN 40.20N 76.73W
12/23/2007 DAUPHIN PA EMERGENCY MNGR
TREES AND WIRES DOWN.
0425 PM NON-TSTM WND DMG LOWER ALLEN 40.23N 76.90W
12/23/2007 CUMBERLAND PA EMERGENCY MNGR
TREES AND WIRES DOWN.
&&
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--Soundings--
| LWX Sounding from 12z on the 23rd, note the strong winds very close to the surface, and extremely steep inversion. |
| Special LWX balloon sounding from 18z. |
--Radar--
| 20z Radar and Surface Obs |
| 21z Radar and Surface Obs |
--IR and Obs--
| IR Satellite and obs from 20z (3 PM EST). |
| IR and obs from 21z (4 PM EST). |
2007 Weather Events/Features:
- Strong Winds crossed the region on Dec 23rd, causing damage in spots.
- Ice and Snow Storm of December 13th
- First Clipper of the Season, December 5th
- Snow-Sleet-Freezing Rain-Rain of December 2nd and 3rd
- Snow Arrives in Central Pennsylvania (Nov 17-18)
- 2007 Holm Award
- New Snowfall/Winter reporting criteria for SkyWarn Spotters!
- October 2007 Warmest October Ever at Williamsport and Harrisburg
- Arctic Sea Ice Below Normal
- October 2007 will be the hottest October ever!
- October's (Record) Hot Weather
- Severe Storms and Tornado of 26 Sept 2007.
- Severe Thunderstorms - August 30, 2007
- Severe Thunderstorms - August 25, 2007
- Large Hail Producing Storms in Lycoming County - August 17th
- EF1 Tornado in Eastern Centre County (Aug 7th)
- Thunderstorms produced flooding, hail and wind damage on Sunday Evening (July 29th)
- Pulse severe storms on Saturday (July 28th)
- A Brief Reprieve From The Dry Summer Weather (July 20th)
- How dry has it been? (Mid July)
- Hot Weather Arrives in Central Pennsylvania (July 10th)
- Heavy Rain and Hail around Harrisburg on July 5th
- Office view of the State College fireworks display
- Pulse Storms in Record Heat of June 27th, 2007
- Widespread Severe Weather Event, June 19th, 2007
- Severe Thunderstorms in Northeast Flow - Day 2 - June 13th, 2007
- Severe Thunderstorms in Northeast Flow - Day 1 - June 12th, 2007
- Severe Squall Line Event June 8th, 2007
- Severe (Hail) Storms of 27 May 2007.
- NWS Open House Severe Weather Event, 12 May 2007.
- Severe (Hail) Storms of 10 May 2007.
- Late Season Nor'Easter (16 March).
- The Valentine's Day Storm (13-14 February).
- Late Start to the Snow - Winter 2006-07.
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