Alert archive / Virginia / River Flood Warnings in 2009

River Flood Warning 22, NWS Blacksburg, VA

December 25, 2009Halifax County, Virginia

NWS Blacksburg, VA issued this river flood warning at Dec 25, 2009, 11:11 AM EST for Halifax County, Virginia. It took effect at Dec 26, 2009, 6:54 AM EST. It was in force for 60 hr.

The area

The counties it named.

The facts

Issued: Dec 25, 2009, 11:11 AM EST (16:11 UTC)
In effect from: Dec 26, 2009, 6:54 AM EST
Expired: Dec 28, 2009, 7:23 PM EST
In force: 60 hr
Issued by: NWS Blacksburg, VA
Flood severity: Minor

County Halifax County, VA

The radar

The Roanoke radar (KFCX), 122 km from the middle of the area, began a volume at 16:15 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 river

Written for the forecast point Dan River at South Boston (SBNV2).

Action stage: 18 ft
Minor stage: 22 ft
Moderate stage: 29 ft
Major stage: 34 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02076000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at Dec 25, 10:37 AM EST, 34 minutes earlier.

Area forecast discussion, Dec 25, 10:37 AM EST, 34 minutes before

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Hazardous weather outlook, Dec 25, 10:41 AM EST, 30 minutes before

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In the hours before

Local storm report, Dec 25, 7:57 AM EST, 3 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
757 AM EST FRI DEC 25 2009

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

0745 AM     NON-TSTM WND DMG TAZEWELL                37.12N 81.52W
12/25/2009                   TAZEWELL           VA   LAW ENFORCEMENT

            TREES DOWN COUNTYWIDE. FALLEN TREES HAVE PULLED DOWN SOME
            POWER LINES

&&

AMS

Local storm report, Dec 25, 9:35 AM EST, 1 hour 36 minutes before

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Local storm report, Dec 25, 10:02 AM EST, 1 hour 9 minutes before

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Local storm report, Dec 25, 10:17 AM EST, 54 minutes before

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Local storm report, Dec 25, 10:28 AM EST, 43 minutes before

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Local storm report, Dec 25, 11:01 AM EST, 10 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
Dec 25, 10:29 AM EST	Flood Watch	RNK	Halifax, Henry, Patrick, Pittsylvania, City of Danville, City of Martinsville	6 hr

Nearby

River Flood Warnings in Virginia, 2009 Every river flood 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.