FNUS51 KRNK 211907 FWFRNK FIRE WEATHER PLANNING FORECAST FOR SW VA...SE WV AND NW NC NATIONAL WEATHER SERVICE BLACKSBURG VA 307 PM EDT TUE MAY 21 2013 .DISCUSSION... FIRE WEATHER THREATS WILL REMAIN LOW INTO THURSDAY...WITH SHOWERS AND THUNDERSTORMS IN THE FORECAST. LOW PRESSURE ALOFT ACROSS SOUTHERN VIRGINIA WILL PUSH EAST INTO THE ATLANTIC OCEAN TONIGHT. A LARGE LOW PRESSURE SYSTEM WILL TRACK FROM THE CENTRAL PLAINS INTO THE GREAT LAKES BY THURSDAY. THIS SYSTEM WILL PUSH A COLD FRONT THROUGH THE AREA THURSDAY...FOLLOWED BY HIGH PRESSURE ON FRIDAY. RELATIVE HUMIDITY AS LOW AS THE 40 AND 50S THIS AFTERNOON WILL REBOUND QUICKLY TONIGHT TO MAXIMUM FROM 85 TO 100 PERCENT. MINIMUM RELATIVE HUMIDITY WEDNESDAY AFTERNOON WILL VARY FROM THE MID 40S TO AROUND 70 PERCENT ALONG SOUTHERN BLUE RIDGE. VAZ014-220915- MONTGOMERY- INCLUDING THE CITIES OF...BLACKSBURG 307 PM EDT TUE MAY 21 2013 TONIGHT WED WED NIGHT THU CLOUD COVER PCLDY PCLDY MCLDY MCLDY PRECIP TYPE TSTMS TSTMS TSTMS TSTMS CHANCE PRECIP (%) 40 40 50 60 MIN/MAX TEMP 61 83 60 76 MAX/MIN RH % 98 49 99 56 WND20FT2MIN/EARLY(MPH)LGT/VAR LGT/VAR S 5 LGT/VAR WND20FT2MIN/LATE(MPH) LGT/VAR S 6 SW 5 SW 6 PRECIP AMOUNT 0.03 0.08 0.11 0.19 PRECIP DURATION 3 2 2 5 PRECIP BEGIN 6 PM CONTINUING CONTINUING CONTINUING PRECIP END CONTINUING CONTINUING CONTINUING CONTINUING MIXING HGT(FT-AGL) 7820 7870 TRANSPORT WND (MPH) SW 17 W 17 VENT RATE (MPH-FT) 132940 133790 DISPERSION (EVENING) POOR POOR LAL 3 3 3 3 HAINES INDEX 4 4 3 4 ADI EARLY 34 FAIR 59 GEN GOOD 54 GEN GOOD 56 GEN GOOD ADI LATE 5 VERY POOR 81 GOOD 15 GEN POOR 63 GOOD MAX LVORI EARLY 4 8 4 7 MAX LVORI LATE 6 1 5 1 REMARKS...NONE. .FORECAST FOR DAYS 3 THROUGH 7... .THURSDAY NIGHT AND FRIDAY...MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. MINIMUM RH 54 PERCENT. NORTHWEST WINDS 10 TO 15 MPH. .FRIDAY NIGHT AND SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. MINIMUM RH 45 PERCENT. WEST WINDS 5 TO 10 MPH. .SATURDAY NIGHT AND SUNDAY...MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. MINIMUM RH 54 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. .SUNDAY NIGHT AND MONDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE MID 50S. HIGHS AROUND 70. MINIMUM RH 65 PERCENT. SOUTHEAST WINDS AROUND 5 MPH. .MONDAY NIGHT AND TUESDAY...MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. MINIMUM RH 64 PERCENT. SOUTH WINDS AROUND 5 MPH. .OUTLOOK 8 TO 14 DAYS... TEMPERATURES ABOVE NORMAL. PRECIPITATION NEAR NORMAL.