Alert archive / Virginia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 121, NWS Wakefield, VA

July 28, 20165 counties in Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 28, 2016, 11:27 PM EDT for 5 counties in 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: Jul 28, 2016, 11:27 PM EDT (03:27 UTC)
Expired: Jul 29, 2016, 12:15 AM EDT
In force: 48 min
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Gloucester County, VA, King and Queen County, VA, Lancaster County, VA, Mathews County, VA, Middlesex County, VA

The radar

The Norfolk radar (KAKQ), 77 km from the middle of the area, began a volume at 03:28 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 00:00Z, 3.5 hours before the alert went out and 108 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 962 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 2.8

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 Jul 28, 9:01 PM EDT, 2 hours 26 minutes earlier.

Area forecast discussion, Jul 28, 9:01 PM EDT, 2 hours 26 minutes before

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Hazardous weather outlook, Jul 28, 8:48 PM EDT, 2 hours 39 minutes before

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In the hours before

Local storm report, Jul 28, 9:37 PM EDT, 1 hour 50 minutes before

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Special weather statement, Jul 28, 10:07 PM EDT, 1 hour 20 minutes before

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Special weather statement, Jul 28, 10:29 PM EDT, 58 minutes before

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Special weather statement, Jul 28, 10:31 PM EDT, 56 minutes before

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Special weather statement, Jul 28, 10:59 PM EDT, 28 minutes before

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Special weather statement, Jul 28, 11:23 PM EDT, 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
1123 PM EDT THU JUL 28 2016

VAZ077-078-085-290400-
NORTHUMBERLAND-MIDDLESEX-LANCASTER-
1123 PM EDT THU JUL 28 2016

...A LINE OF THUNDERSTORMS WITH HEAVY RAIN WILL AFFECT NORTHWESTERN
MIDDLESEX...NORTHUMBERLAND AND LANCASTER COUNTIES...

AT 1123 PM EDT...THUNDERSTORMS WITH HEAVY RAIN WERE LOCATED ALONG A
LINE EXTENDING FROM 7 MILES WEST OF TYLERTON TO GLENNS. MOVEMENT WAS
EAST AT 40 MPH.

WIND GUSTS IN EXCESS OF 30 MPH AND RAINFALL AMOUNTS OF 1 TO 2
INCHES ARE POSSIBLE WITH THESE STORMS.

THESE STORMS WILL BE NEAR...
  WHITE STONE AROUND 1140 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE WATER
VIEW...LARA... LILIAN...BROWNS
STORE...NUTTSVILLE...WEEMS...BERTRAND...REEDVILLE...FLEETON AND HULL
NECK.

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

MOTORISTS SHOULD USE EXTRA CAUTION IN THE VICINITY OF THESE STORMS.
BE PREPARED FOR RAPID CHANGES IN WEATHER AND ROAD CONDITIONS. HEAVY
RAIN COULD CAUSE PONDING OF WATER ON ROADS...AND POSSIBLE MINOR
FLOODING OF DITCHES AND POOR DRAINAGE AREAS.

LAT...LON 3795 7635 3789 7624 3788 7620 3782 7621
      3780 7623 3777 7623 3775 7627 3769 7626
      3766 7627 3763 7624 3766 7671 3770 7674
      3781 7658 3784 7656 3783 7652 3785 7651
      3786 7654 3796 7640
TIME...MOT...LOC 0323Z 258DEG 36KT 3797 7615 3757 7660

MINNICK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 8:04 PM EDT	Special Marine Warning	AKQ		56 min
Jul 28, 8:05 PM EDT	Tornado Warning	AKQ	Accomack	25 min
Jul 28, 8:17 PM EDT	Special Marine Warning	AKQ		58 min
Jul 28, 8:21 PM EDT	Special Weather Statement	AKQ	Accomack	39 min
Jul 28, 8:29 PM EDT	Severe Thunderstorm Warning	AKQ	Accomack	34 min
Jul 28, 8:39 PM EDT	Special Weather Statement	AKQ	Caroline, Essex, Louisa, Westmoreland	66 min
Jul 28, 9:43 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline, Essex, King and Queen, King William, Richmond, Westmoreland	47 min
Jul 28, 9:50 PM EDT	Tornado Warning	AKQ	Essex, King and Queen, Richmond, Westmoreland	40 min
Jul 28, 10:07 PM EDT	Special Weather Statement	AKQ	Hanover, Henrico, King William, City of Richmond	38 min
Jul 28, 10:22 PM EDT	Tornado Warning	AKQ	Essex, Lancaster, Middlesex, Northumberland, Richmond, Westmoreland	53 min
Jul 28, 10:23 PM EDT	Special Marine Warning	AKQ		67 min
Jul 28, 10:29 PM EDT	Special Weather Statement	AKQ	Henrico, New Kent	46 min
Jul 28, 10:31 PM EDT	Special Weather Statement	AKQ	Hanover, Powhatan, City of Richmond	44 min
Jul 28, 10:40 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, James City, King and Queen, King William, Middlesex, New Kent	50 min
Jul 28, 10:59 PM EDT	Special Weather Statement	AKQ	Essex, King and Queen, King William	46 min
Jul 28, 11:18 PM EDT	Special Marine Warning	AKQ		72 min
Jul 28, 11:23 PM EDT	Special Weather Statement	AKQ	Lancaster, Northumberland	37 min
Jul 28, 11:56 PM EDT	Special Weather Statement	AKQ	Amelia, Nottoway, Prince Edward	49 min
Jul 29, 12:05 AM EDT	Special Weather Statement	AKQ	Accomack	40 min
Jul 29, 12:07 AM EDT	Special Weather Statement	AKQ	King and Queen, Lancaster, Northumberland	38 min
Jul 29, 12:14 AM EDT	Special Weather Statement	AKQ	Cumberland, Goochland, Powhatan	31 min
Jul 29, 12:18 AM EDT	Severe Thunderstorm Warning	AKQ	Accomack	42 min
Jul 29, 12:30 AM EDT	Special Marine Warning	AKQ		60 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2016 Every severe thunderstorm warning in 2016

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.