Alert archive / Virginia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 95, NWS Wakefield, VA

August 23, 2013Chesterfield County, Goochland County, Powhatan County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Aug 23, 2013, 11:50 AM EDT for Chesterfield County, Goochland County, Powhatan County, Virginia. It was in force for 40 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
Aug 23, 2013, 11:50 AM EDT (15:50 UTC)
Expired
Aug 23, 2013, 12:30 PM EDT
In force
40 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chesterfield County, VA, Goochland County, VA, Powhatan County, VA

The radar

The Norfolk radar (KAKQ), 95 km from the middle of the area, began a volume at 15:53 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 nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 3.8 hours before the alert went out and 216 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.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2013-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 149 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2013-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
149 J/kg
Mixed-layer CIN
-158 J/kg
Mixed-layer LCL
1307 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Aug 23, 10:30 AM EDT, 1 hour 20 minutes earlier.

Area forecast discussion, Aug 23, 10:30 AM EDT, 1 hour 20 minutes before
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Hazardous weather outlook, Aug 23, 4:55 AM EDT, 6 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WAKEFIELD VA
455 AM EDT FRI AUG 23 2013

MDZ021>025-NCZ012>017-030>032-102-VAZ048-049-060>100-240900-
DORCHESTER-WICOMICO-SOMERSET-INLAND WORCESTER-MARYLAND BEACHES-
NORTHAMPTON NC-HERTFORD-GATES-PASQUOTANK-CAMDEN-INLAND CURRITUCK-
BERTIE-CHOWAN-PERQUIMANS-OUTER BANKS CURRITUCK-FLUVANNA-LOUISA-
PRINCE EDWARD-CUMBERLAND-GOOCHLAND-HANOVER-CAROLINE-MECKLENBURG-
LUNENBURG-NOTTOWAY-AMELIA-POWHATAN-CHESTERFIELD-HENRICO-KING WILLIAM-
KING AND QUEEN-ESSEX-WESTMORELAND-RICHMOND-NORTHUMBERLAND-LANCASTER-
BRUNSWICK-DINWIDDIE-PRINCE GEORGE-CHARLES CITY-NEW KENT-GLOUCESTER-
MIDDLESEX-MATHEWS-GREENSVILLE-SUSSEX-SURRY-JAMES CITY-YORK-
SOUTHAMPTON-ISLE OF WIGHT-NEWPORT NEWS/HAMPTON-NORFOLK/PORTSMOUTH-
SUFFOLK-CHESAPEAKE-VIRGINIA BEACH-ACCOMACK-NORTHAMPTON VA-
455 AM EDT FRI AUG 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE LOWER EASTERN SHORE OF
MARYLAND...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 NORTHERN NECK OF VIRGINIA...THE PENINSULA OF
SOUTHEAST VIRGINIA AND THE PIEDMONT OF CENTRAL VIRGINIA.

.DAY ONE...TODAY AND 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 IS NOT EXPECTED AT THIS TIME.

ANZ630>638-650-652-654-656-658-240900-
CHESAPEAKE BAY FROM SMITH POINT TO WINDMILL POINT VA-
CHESAPEAKE BAY FROM WINDMILL POINT TO NEW POINT COMFORT VA-
CHESAPEAKE BAY FROM NEW POINT COMFORT TO LITTLE CREEK VA-
CURRITUCK SOUND-
CHESAPEAKE BAY FROM LITTLE CREEK TO CAPE HENRY VA...INCLUDING THE
CHESAPEAKE BAY BRIDGE TUNNEL-
RAPPAHANNOCK RIVER FROM URBANNA TO WINDMILL POINT-YORK RIVER-
JAMES RIVER FROM JAMESTOWN TO THE JAMES RIVER BRIDGE-
JAMES RIVER FROM THE JAMES RIVER BRIDGE TO THE HAMPTON ROADS BRIDGE-
TUNNEL-
COASTAL WATERS FROM FENWICK ISLAND DE TO CHINCOTEAGUE VA OUT TO
20 NM-
COASTAL WATERS FROM CHINCOTEAGUE TO PARRAMORE ISLAND VA OUT TO 20 NM-
COASTAL WATERS FROM PARRAMORE ISLAND TO CAPE CHARLES LIGHT VA OUT TO
20 NM-
COASTAL WATERS FROM CAPE CHARLES LIGHT VA TO NC VA BORDER OUT TO
20 NM-
COASTAL WATERS FROM NC VA BORDER TO CURRITUCK BEACH LIGHT NC OUT TO
20 NM-
455 AM EDT FRI AUG 23 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE CENTRAL CHESAPEAKE
BAY...THE LOWER CHESAPEAKE BAY...THE MID ATLANTIC COASTAL
WATERS...CURRITUCK SOUND...THE EASTERN JAMES RIVER...THE EASTERN
RAPPAHANNOCK RIVER AND THE EASTERN YORK RIVER.

.DAY ONE...TODAY AND 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 IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 23, 9:56 AM EDT, 1 hour 54 minutes before
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Special weather statement, Aug 23, 10:55 AM EDT, 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
1055 AM EDT FRI AUG 23 2013

VAZ048-049-062>064-071-231600-
CAROLINE-FLUVANNA-GOOCHLAND-HANOVER-HENRICO-LOUISA-
1055 AM EDT FRI AUG 23 2013

...SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS LOUISA...FLUVANNA...
GOOCHLAND...HANOVER...HENRICO AND CAROLINE COUNTIES THROUGH NOON
EDT...

AT 1053 AM EDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS
WITH VERY HEAVY RAIN ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF
CHILESBURG TO 5 MILES SOUTH OF COLUMBIA...OR ALONG A LINE EXTENDING
FROM 12 MILES NORTHEAST OF MINERAL TO 5 MILES WEST OF CARTERSVILLE...
MOVING EAST AT 20 MPH.

THE STRONG THUNDERSTORMS WILL BE NEAR GEORGES TAVERN AROUND 1100 AM
EDT...
  OTHMA AROUND 1105 AM EDT...
  ORCHID AROUND 1110 AM EDT...
  LOCUST CREEK AROUND 1115 AM EDT...
  GUM SPRING AROUND 1120 AM EDT...
  CEDON AROUND 1125 AM EDT...

HAZARDS INCLUDE...
GUSTY WINDS UP TO 30 MPH.

CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

IF YOU SEE LIGHTNING OR HEAR THUNDER...TAKE SHELTER INDOORS
IMMEDIATELY. IF YOU CANNOT FIND SHELTER IN A BUILDING A VEHICLE
PROVIDES SAFETY FROM LIGHTNING.

DON'T WAIT UNTIL YOU SEE THE FIRST LIGHTNING FLASH BEFORE HEADING TO
SAFETY. MOVE INDOORS AT THE FIRST SIGN OF THREATENING SKIES OR THE
FIRST SOUND OF THUNDER. MAKE SURE THAT LIGHTNING IS WELL AWAY FROM
YOUR LOCATION BEFORE RESUMING OUTDOOR ACTIVITY.

THESE STORMS WILL PRODUCE HEAVY RAINFALL...WHICH WILL CAUSE MINOR
FLOODING OF LOW LYING AREAS INCLUDING DITCHES...CREEKS...ROADWAYS AND
AREAS OF POOR DRAINAGE. AVOID THESE AREAS AND DO NOT CROSS FLOODED
ROADS. MOTORISTS SHOULD ALSO REDUCE DRIVING SPEEDS TO AVOID
HYDROPLANING.

LAT...LON 3771 7829 3809 7782 3800 7766 3809 7754
      3803 7726 3759 7772 3761 7777 3760 7781
      3769 7791 3768 7795 3762 7796 3764 7806
      3768 7811 3770 7809 3775 7815 3773 7820
      3768 7824

JFOSTER
Special weather statement, Aug 23, 11:29 AM EDT, 21 minutes before
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The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 22, 8:58 PM EDTSpecial Weather StatementAKQMecklenburg47 min
Aug 23, 9:56 AM EDTSpecial Weather StatementAKQFluvanna, Louisa64 min
Aug 23, 10:55 AM EDTSpecial Weather StatementAKQCaroline, Goochland, Louisa65 min
Aug 23, 11:29 AM EDTSpecial Weather StatementAKQGoochland, Powhatan61 min
Aug 23, 12:26 PM EDTSpecial Weather StatementAKQChesterfield, City of Colonial Heights, City of Hopewell, City of Petersburg, City of Richmond64 min
Aug 23, 1:00 PM EDTSpecial Weather StatementAKQPrince Edward45 min
Aug 23, 1:19 PM EDTSpecial Weather StatementAKQNottoway41 min
Aug 23, 1:55 PM EDTSpecial Weather StatementAKQNottoway65 min
Aug 23, 1:58 PM EDTSpecial Weather StatementAKQRichmond62 min
Aug 23, 2:01 PM EDTSpecial Weather StatementAKQPrince Edward49 min
Aug 23, 2:03 PM EDTSpecial Weather StatementAKQNorthumberland57 min
Aug 23, 2:22 PM EDTSpecial Weather StatementAKQAccomack53 min
Aug 23, 2:49 PM EDTAreal Flood AdvisoryAKQAccomack3 hr
Aug 23, 2:51 PM EDTSpecial Weather StatementAKQBrunswick, Greensville, Lunenburg, Nottoway, Prince Edward, City of Emporia39 min
Aug 23, 2:52 PM EDTSpecial Weather StatementAKQBrunswick, Greensville, Lunenburg, Nottoway, Prince Edward, City of Emporia38 min
Aug 23, 3:22 PM EDTSpecial Weather StatementAKQChesterfield, Hanover, King William, City of Richmond53 min
Aug 23, 3:33 PM EDTSpecial Weather StatementAKQBrunswick, Greensville, Lunenburg, City of Emporia42 min
Aug 23, 3:58 PM EDTSmall Craft Advisory for Hazardous SeasAKQ8 hr
Aug 23, 4:05 PM EDTSpecial Weather StatementAKQGreensville, City of Emporia, City of Franklin25 min
Aug 23, 4:33 PM EDTSpecial Weather StatementAKQGreensville, City of Emporia42 min
Aug 23, 4:41 PM EDTSpecial Weather StatementAKQCharles City, City of Hopewell49 min
Aug 23, 5:20 PM EDTSpecial Weather StatementAKQSouthampton, Sussex, City of Franklin, City of Suffolk25 min
Aug 23, 5:23 PM EDTSpecial Weather StatementAKQMecklenburg22 min
Aug 23, 5:33 PM EDTSpecial Weather StatementAKQSurry42 min
Aug 23, 3:38 PM EDTSpecial Weather StatementAKQChowan22 min
Aug 23, 3:42 PM EDTSpecial Weather StatementAKQCamden63 min
Aug 23, 3:58 PM EDTSpecial Weather StatementAKQPasquotank62 min
Aug 23, 5:16 PM EDTSpecial Weather StatementAKQBertie, Chowan29 min
Aug 23, 5:17 PM EDTSpecial Weather StatementAKQHertford28 min
Aug 23, 5:55 PM EDTSpecial Weather StatementAKQBertie, Chowan35 min
Aug 23, 5:56 PM EDTBeach Hazards StatementAKQCurrituck10 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2013Every severe thunderstorm warning in 2013

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.