Alert archive / Virginia / Areal Flood Warnings in 2014

Areal Flood Warning 2, NWS Blacksburg, VA

May 15, 20149 counties in Virginia

NWS Blacksburg, VA issued this areal flood warning at May 15, 2014, 11:38 PM EDT for 9 counties in Virginia. It was in force for 6 hr. 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 15, 2014, 11:38 PM EDT (03:38 UTC)
Expired: May 16, 2014, 5:30 AM EDT
In force: 6 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: None

Counties Amherst County, VA, Appomattox County, VA, Buckingham County, VA, Campbell County, VA, Charlotte County, VA, City of Danville, VA, City of Lynchburg, VA, Halifax County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 113 km from the middle of the area, began a volume at 03:41 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 3.6 hours before the alert went out and 143 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: 45 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this areal flood warning went out at May 15, 10:58 PM EDT, 40 minutes earlier.

Area forecast discussion, May 15, 10:58 PM EDT, 40 minutes before

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Hazardous weather outlook, May 15, 10:40 PM EDT, 58 minutes before

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In the hours before

Local storm report, May 15, 9:20 PM EDT, 2 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
920 PM EDT THU MAY 15 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 PM     FLASH FLOOD      1 NE HALIFAX            36.77N 78.92W
05/15/2014                   HALIFAX            VA   EMERGENCY MNGR

            ROAD FLOODED AT U.S. 360 AND BETHEL ROAD WITH SEVERAL
            INCHES OF WATER FLOWING OVER THE ROAD.

&&

RAB

Local storm report, May 15, 9:25 PM EDT, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
925 PM EDT THU MAY 15 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0851 PM     FLOOD            1 SSE DANVILLE CITY     36.57N 79.41W
05/15/2014                   CITY OF DANVILLE   VA   TRAINED SPOTTER

            MINOR STREET FLOODING OCCURRING ON KEMPER ROAD

&&

PW

Local storm report, May 15, 9:36 PM EDT, 2 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
936 PM EDT THU MAY 15 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     FLASH FLOOD      1 SSW HILLSVILLE        36.76N 80.74W
05/15/2014                   CARROLL            VA   911 CALL CENTER

            6 TO 8 INCHES OF WATER FLOWING OVER WEST STUART DRIVE
            NEAR THE VFW

&&

FISHER

Local storm report, May 15, 9:46 PM EDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
946 PM EDT THU MAY 15 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     FLOOD            2 E SHEPPARDS           37.38N 78.44W
05/15/2014                   BUCKINGHAM         VA   911 CALL CENTER

            STANDING WATER OVER STAGE COACH ROAD THAT CAUSED THE ROAD
            TO BE CLOSED EAST OF ROUTE 15

&&

PW

Local storm report, May 15, 9:52 PM EDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
952 PM EDT THU MAY 15 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0840 PM     FLASH FLOOD      5 SSE HALIFAX           36.70N 78.91W
05/15/2014                   HALIFAX            VA   EMERGENCY MNGR

            SUMMIT DRIVE FLOODED AT POPLAR CREEK IN SOUTH BOSTON.

&&

RAB

Local storm report, May 15, 10:57 PM EDT, 41 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 8:26 PM EDT	Special Weather Statement	RNK	Botetourt, City of Roanoke, City of Salem	64 min
May 15, 8:49 PM EDT	Special Weather Statement	RNK	Campbell, Pittsylvania	56 min
May 15, 8:56 PM EDT	Areal Flood Advisory	RNK	Appomattox, Buckingham, Campbell, Charlotte, Halifax, Pittsylvania and 2 more	3 hr
May 15, 10:31 PM EDT	River Flood Warning	RNK	Charlotte, Halifax	70 hr
May 15, 10:31 PM EDT	River Flood Warning	RNK	Halifax	51 hr
May 16, 12:15 AM EDT	Areal Flood Warning	RNK	Bath	12 hr
May 16, 5:22 AM EDT	Areal Flood Warning	RNK	Appomattox, Buckingham, Campbell, Charlotte	6 hr
May 16, 5:12 PM EDT	Areal Flood Warning	RNK	Charlotte	12 hr
May 16, 5:24 PM EDT	Areal Flood Warning	RNK	Buckingham	12 hr
May 16, 5:40 PM EDT	Areal Flood Warning	RNK	Alleghany, Botetourt	12 hr
May 16, 7:49 PM EDT	Areal Flood Warning	RNK	Bath	6 hr
May 15, 8:10 PM EDT	Special Weather Statement	RNK	Stokes, Surry, Yadkin	65 min
May 15, 10:31 PM EDT	River Flood Warning	RNK	Greenbrier, Monroe, Summers	46 hr
May 16, 7:11 PM EDT	Special Weather Statement	RNK	Mercer	34 min
May 16, 7:29 PM EDT	Special Weather Statement	RNK	Mercer	31 min

Nearby

Areal Flood Warnings in Virginia, 2014 Every areal flood warning in 2014

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.