Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Wakefield, VA

July 23, 2012Fluvanna County, Goochland County, Virginia

NWS Wakefield, VA issued this special weather statement at Jul 23, 2012, 5:03 PM EDT for Fluvanna County, Goochland County, Virginia. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 23, 2012, 5:03 PM EDT (21:03 UTC)
Expired: Jul 23, 2012, 6:00 PM EDT
In force: 57 min
Issued by: NWS Wakefield, VA

Counties Fluvanna County, VA, Goochland County, VA

The radar

The Norfolk radar (KAKQ), 142 km from the middle of the area, began a volume at 21:04 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

Roanoke, VA (KRNK), launched 12:00Z, 9.1 hours before the alert went out and 120 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: 1190 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 766 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: -15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

570 
WWUS81 KAKQ 232103
SPSAKQ

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
503 PM EDT MON JUL 23 2012

VAZ048-061-062-069-232200-
CUMBERLAND VA-FLUVANNA VA-GOOCHLAND VA-POWHATAN VA-
503 PM EDT MON JUL 23 2012

...STRONG THUNDERSTORM MOVING INTO CENTRAL VIRGINIA...

AT 502 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 12 MILES WEST OF FORK UNION...OR ABOUT 12 MILES
WEST OF PALMYRA...MOVING SOUTHEAST AT 25 MPH. THE STRONG
THUNDERSTORMS WILL BE NEAR HARDWARE AT 515 PM EDT...SHORES AT 520 PM
EDT...COHASSET AT 525 PM EDT...FORK UNION AT 530 PM EDT...COLUMBIA AT
540 PM EDT...DUNCAN AT 545 PM EDT.

WIND GUSTS TO 45 MPH AND SMALL HAIL ARE POSSIBLE WITH THIS STORM.
EXPECT FREQUENT CLOUD TO GROUND LIGHTNING IN THE PATH OF THIS 
STORM. IF YOU HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY 
LIGHTNING. MOVE INTO A SAFE SHELTER BEFORE THIS STORM REACHES YOUR 
AREA. REMAIN INDOORS UNTIL THE STORM HAS PASSED.

HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS...AND 
POSSIBLE LOCALIZED FLOODING IN LOW LYING AND FLOOD PRONE AREAS.

LAT...LON 3789 7841 3774 7787 3751 7802 3761 7827
      3768 7824 3770 7829 3771 7833 3773 7837
      3773 7841 3775 7845 3777 7848 3781 7849

$$

GINGRICH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 2:51 PM EDT	Special Weather Statement	AKQ	Lunenburg	54 min
Jul 23, 3:47 PM EDT	Special Weather Statement	AKQ	Brunswick	58 min
Jul 23, 3:55 PM EDT	Special Weather Statement	AKQ	Dinwiddie, Lunenburg	65 min
Jul 23, 4:59 PM EDT	Special Weather Statement	AKQ	Amelia, Cumberland	61 min
Jul 23, 6:00 PM EDT	Special Weather Statement	AKQ	Cumberland, Goochland, Louisa, Powhatan	60 min
Jul 23, 6:26 PM EDT	Special Marine Warning	AKQ		94 min
Jul 23, 6:29 PM EDT	Special Weather Statement	AKQ	Amelia, Chesterfield, Nottoway, Powhatan	76 min
Jul 23, 4:10 PM EDT	Special Weather Statement	AKQ	Hertford, Northampton	65 min
Jul 23, 5:37 PM EDT	Special Weather Statement	AKQ	Camden, Pasquotank, Perquimans	53 min
Jul 23, 6:27 PM EDT	Special Weather Statement	AKQ	Currituck	48 min

Nearby

Special Weather Statements in Virginia, 2012 Every special weather statement in 2012

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.