Alert archive / Virginia / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 92, NWS Wakefield, VA
NWS Wakefield, VA issued this severe thunderstorm warning at May 29, 2009, 4:59 PM EDT for Mecklenburg County, Virginia. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 29, 2009, 4:59 PM EDT (20:59 UTC)
- Expired
- May 29, 2009, 5:47 PM EDT
- In force
- 48 min
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
County Mecklenburg County, VA
The radar
The Raleigh/Durham radar (KRAX), 113 km from the middle of the area, began a volume at 21:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 29, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 9.0 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 131 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 860 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 2:54 PM EDT, 2 hours 5 minutes earlier.
Area forecast discussion, May 29, 2:54 PM EDT, 2 hours 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WAKEFIELD VA 254 PM EDT FRI MAY 29 2009 .SYNOPSIS... A COLD FRONT WILL PUSH ACROSS THE AREA THIS EVENING...THEN MOVE OFF THE COAST LATE TONIGHT. HIGH PRESSURE WILL BUILD OVER THE AREA SATURDAY INTO SUNDAY. A WEAK FRONT PUSHES THROUGH THE REGION SUNDAY MORNING. HIGH PRESSURE WILL SLIDE OFF THE COAST MONDAY INTO TUESDAY. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... HTG/MOD INSTABILITY ACRS FA...DP LYRD SW FLO IN PLC...JET DYNAMICS FM NRN PART OF FA ON NEWD. WATCHING DVLPG (SCTD) CNVTN OVR WRN VA...CVRG TO CNVTN HERE DIFFICULT TO PINPOINT ATTM. MDLS SUGG THAT DVLPMNT OF SGFNT AREA OF CNVTN OCCURS FM MID TO LT EVE HRS...FM LWR MD ERN SHR TO SCNTRL VA...ON TO THE E. WL INCLD ENHANCE SVR WORDING FOR SVR WATCHES 314/315 THROUGH ERY/MID EVE HRS. ALL AREAS WL HV SCTD CHCS...CONCERNED OVR LCLLY HVY RAINFALL. TRANSITION OF PCPN TO THE CST LTR TNGT W/ SFC CDFNT. LWRG DWPTS BEGIN TO SPRD INTO FAR WRN SXNS AFT MDNGT. LO TEMPS 60S TO ARND 70. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/... WK SFC HI PRES SLIDES ACRS FA (LT) SAT NGT/SUN MRNG. MDLS SUGG SCNDRY/DRY PUSH FM THE NW FM LTR SAT THROUGH SUN. LMTD SUPPORT FOR ANY PCPN...SO WL GO JUST CLR/PCLDY THRUT. BY MON...SFC HI PRES OFFSHR...LLVL FLO TURNS FM E TO SSE. WL HV TO WAIT AND SEE IF ANY MSTR WOULD SPRD INLAND/NWD INTO RGN MON AFTN. HI TEMPS SAT/SUN IN THE 70S TO M80S...L70S TO L80S MON. COMFY NGTS...W/ LO TEMPS SAT NGT IN THE 50S TO L60S...THEN FM THE 40S TO U50S SUN NGT. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... EXPECT A RETURN TO MORE DRIER...SUMMERLY LIKE WEATHER FOR AT LEAST THE BEGINNING OF NEXT WEEK. RETURN FLOW BEHIND THE LAST FROPA ON SUN TURNS SOUTHERLY BY MON AFTN WITH SURFACE HIGH PRES FROM THE SOUTHERN STATES BEGINNING TO TAKE OVER AS THE DOMINANT FEATURE. THIS HIGH BEGINS TO MOVE OFFSHORE ON MONDAY EVENING WHERE IT PARKS ITSELF AS A BERMUDA-LIKE HIGH...ALLLOWING S/SW FLOW TO INFILTRATE OVER THE REGION, BRINGING HIGH TEMPS 8-12 DEGREES ABOVE CLIMO NORMAL ON MON/TUE. BY WED EXPECT A RETURN TO MORE CLIMO NORMAL TEMPS AS AS A BACKDOOR COLD FRONT SLOWLY APPROACHES FROM THE NORTH. THE GFS AND EURO APPEAR TO BE EQUALLY PROGRESSIVE WITH THIS FEATURE, ALONG IWHT LOTHER LONG RAINGE GUIDANCE. BASED ON DECENT MODEL CONTINUITY BEEFED UP POPS IN DURING THE AFTNS OF WED-FRI TO 30-40 PERCENT WITH THUNDERSTORMS MENTIONED IN THE GRIDS BASED ON THE MODERATE TO HIGH INSTABILITY INDICATED. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... SHWRS AND TSTMS DVLPNG AHEAD OF A COLD FRONT THAT WILL PUSH THRU OUR FCST AREA THIS EVE. FIRST ROUND OF SHWRS/TSTMS DVLPNG ALG A LINE FROM CHO TO JUST WEST OF DAN...COVERAGE AND TIMING MAIN PROBLEM SO HAVE CB IN ALL SITES WITH FIRST SITES AFFECTED RIC AND SBY. CHNC OF RA LINGERS ALG CST UNTIL FRONT PUSHES OFFSHORE LATER TONIGHT. AFTER THE FRONT MVS THROUGH TONIGHT...SKIES WILL CLEAR AND DRIER AIR FINALLY MEANS LITTLE/NO THREAT OF LOW CLOUDS/FG OVERNIGHT. CONDS REMAIN VFR ON SAT AND SUN. && .MARINE... A FRONT MVS OVER THE WATERS THIS EVENING...SHIFTING WINDS TO THE WEST AND THEN EVENTUALLY NORTH BY MID MORNING ON SAT. PRES GRAD IS NOT VERY IMPRESSIVE WITH THIS FEATURE...SO CONDS SHOULD REMAIN BELOW SMALL CRAFT CRITERIA...WITH WINDS HIGHEST AROUND 15 KTS. SPEEDS REMAIN 10 KT OR LESS FOR THR REST OF THE WEEKEND...ALTHOUGH DIRECTIONS WILL AGAIN BE SHIFTING AROUND DUE TO ANOTHER WEAK FRONT MVG THROUGH THE AREA ON SUNDAY. NO FLAGS ANTICIPATED THROUGH AT LEAST MID WEEK. && .AKQ WATCHES/WARNINGS/ADVISORIES... MD...NONE. NC...NONE. VA...NONE. MARINE...NONE. && SYNOPSIS...ALB/TMG NEAR TERM...ALB SHORT TERM...ALB LONG TERM...SMF AVIATION...CY MARINE...SMF
Hazardous weather outlook, May 29, 4:08 PM EDT, 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WAKEFIELD VA 408 PM EDT FRI MAY 29 2009 ANZ631>633-NCZ012>017-030>032-102-VAZ060-065>068-070-079>082-084- 086>098-100-302015- CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA- CHESAPEAKE BAY FROM NEW POINT COMFORT TO CAPE HENRY VA- CURRITUCK SOUND-NORTHAMPTON NC-HERTFORD-GATES-PASQUOTANK-CAMDEN- INLAND CURRITUCK-BERTIE-CHOWAN-PERQUIMANS-OUTER BANKS CURRITUCK- PRINCE EDWARD-MECKLENBURG-LUNENBURG-NOTTOWAY-AMELIA-CHESTERFIELD- BRUNSWICK-DINWIDDIE-PRINCE GEORGE-CHARLES CITY-GLOUCESTER-MATHEWS- GREENSVILLE-SUSSEX-SURRY-JAMES CITY-YORK-SOUTHAMPTON-ISLE OF WIGHT- NEWPORT NEWS/HAMPTON-NORFOLK/PORTSMOUTH-SUFFOLK-CHESAPEAKE- VIRGINIA BEACH-NORTHAMPTON VA- 408 PM EDT FRI MAY 29 2009 ...SEVERE THUNDERSTORM WATCH 315 IN EFFECT UNTIL 10 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SOUTHERN CHESAPEAKE BAY...CURRITUCK SOUND...COASTAL NORTHEAST NORTH CAROLINA...INTERIOR NORTHEAST NORTH CAROLINA...THE NORTHERN OUTER BANKS OF NORTH CAROLINA...CENTRAL VIRGINIA...EAST CENTRAL VIRGINIA...INTERIOR SOUTHEAST VIRGINIA...SOUTH CENTRAL VIRGINIA...SOUTH HAMPTON ROADS VIRGINIA...THE EASTERN SHORE OF VIRGINIA...THE MIDDLE PENINSULA OF VIRGINIA...THE PENINSULA OF SOUTHEAST VIRGINIA AND THE PIEDMONT OF CENTRAL VIRGINIA. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. ANZ630-MDZ021>025-VAZ048-049-061>064-069-071>078-083-085-099-302015- CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA-DORCHESTER- WICOMICO-SOMERSET-INLAND WORCESTER-MARYLAND BEACHES-FLUVANNA-LOUISA- CUMBERLAND-GOOCHLAND-HANOVER-CAROLINE-POWHATAN-HENRICO-KING WILLIAM- KING AND QUEEN-ESSEX-WESTMORELAND-RICHMOND-NORTHUMBERLAND-LANCASTER- NEW KENT-MIDDLESEX-ACCOMACK- 408 PM EDT FRI MAY 29 2009 ...SEVERE THUNDERSTORM WATCH 314 IN EFFECT UNTIL 8 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE CENTRAL CHESAPEAKE BAY...THE LOWER EASTERN SHORE OF MARYLAND...CENTRAL VIRGINIA...EAST CENTRAL VIRGINIA...THE EASTERN SHORE OF VIRGINIA...THE MIDDLE PENINSULA OF VIRGINIA...THE NORTHERN NECK OF VIRGINIA AND THE PIEDMONT OF CENTRAL VIRGINIA. .DAY ONE...TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. ANZ650-652-654-656-658-302015- COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT 20 NM- COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT 20 NM- COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT 20 NM- COASTAL WATERS FROM CAPE CHARLES LIGHT VA TO NC VA BORDER OUT 20 NM- COASTAL WATERS FROM NC VA BORDER TO CURRITUCK BEACH LIGHT NC OUT 20 NM- 408 PM EDT FRI MAY 29 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MID ATLANTIC COASTAL WATERS. .DAY ONE...TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED.
In the hours before
Special weather statement, May 29, 3:31 PM EDT, 1 hour 28 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WAKEFIELD VA 331 PM EDT FRI MAY 29 2009 VAZ065>067-292030- LUNENBURG VA-MECKLENBURG VA-NOTTOWAY VA- 331 PM EDT FRI MAY 29 2009 ...A LINE OF STRONG THUNDERSTORMS APPROACHING WESTERN LUNENBURG AND MECKLENBURG COUNTIES... AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A NEARLY SOLID LINE OF STRONG THUNDERSTORMS FROM 14 MILES WEST OF VICTORIA TO 30 MILES SOUTHWEST OF CHASE CITY...OR FROM KEYSVILLE TO 11 MILES NORTHWEST OF VIRGILINA...MOVING EAST AT 25 MPH. THE STRONG THUNDERSTORMS WILL BE NEAR... VICTORIA AROUND 410 PM EDT... KENBRIDGE AROUND 430 PM EDT... WIND GUSTS TO 50 MPH AND SMALL HAIL ARE EXPECTED WITH THESE STORMS. EXPECT FREQUENT CLOUD TO GROUND LIGHTNING IN THE PATH OF THESE STORMS. IF YOU HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE INTO A SAFE SHELTER BEFORE THESE STORMS REACH YOUR AREA. REMAIN INDOORS UNTIL THE STORMS HAVE PASSED. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR WILL CAUSE PONDING OF WATER ON ROADWAYS...AND POSSIBLE LOCALIZED FLOODING IN LOW LYING AND OTHER POOR DRAINAGE AREAS. ALB
Special weather statement, May 29, 4:28 PM EDT, 31 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WAKEFIELD VA 428 PM EDT FRI MAY 29 2009 VAZ060-062-063-065>071-079-080-292130- AMELIA VA-BRUNSWICK VA-CHESTERFIELD VA-DINWIDDIE VA-GOOCHLAND VA-HANOVER VA-HENRICO VA-LUNENBURG VA-MECKLENBURG VA-NOTTOWAY VA-POWHATAN VA-PRINCE EDWARD VA- 428 PM EDT FRI MAY 29 2009 ...SCATTERED THUNDERSTORMS MOVING INTO CENTRAL AND SOUTH CENTRAL VIRGINIA... AT 428 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SCATTERED STRONG THUNDERSTORMS FROM GOOCHLAND TO 16 MILES SOUTHWEST OF CHASE CITY...OR FROM GOOCHLAND TO 9 MILES NORTHEAST OF VIRGILINA...MOVING EAST AT 20 MPH. THE THUNDERSTORMS WILL BE NEAR... OILVILLE AROUND 435 PM EDT... RUBERMOUNT AROUND 440 PM EDT... JOHNSONS SPRINGS AROUND 445 PM EDT... CENTERVILLE AROUND 450 PM EDT... THE FALLS AROUND 455 PM EDT... WILBURN AROUND 500 PM EDT... WIND GUSTS TO 45 TO 50 MPH AND SMALL HAIL ARE EXPECTED WITH THESE STORMS. EXPECT FREQUENT CLOUD TO GROUND LIGHTNING IN THE PATH OF THESE STORMS. IF YOU HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE INTO A SAFE SHELTER BEFORE THESE STORMS REACH YOUR AREA. REMAIN INDOORS UNTIL THE STORMS HAVE PASSED. RAINFALL RATES OF 1 TO 1.5 INCHES PER HOUR WILL CAUSE PONDING OF WATER ON ROADWAYS...AND POSSIBLE LOCALIZED FLOODING IN LOW LYING AND OTHER POOR DRAINAGE AREAS. ALB
Special weather statement, May 29, 4:48 PM EDT, 11 minutes before
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</html>The office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:05 PM EDT | Special Marine Warning | AKQ | 115 min | |
| May 29, 7:46 PM EDT | Special Marine Warning | AKQ | 59 min | |
| May 29, 5:21 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 39 min |
| May 29, 5:47 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester | 10 min |
| May 29, 7:18 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico | 42 min |
| May 29, 7:41 PM EDT | Severe Thunderstorm Warning | AKQ | Wicomico, Worcester | 49 min |
| May 29, 7:51 PM EDT | Severe Thunderstorm Warning | AKQ | Worcester | 54 min |
Nearby
Severe Thunderstorm Warnings in Virginia, 2009Every severe thunderstorm warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.