Alert archive / Virginia / Flood Watches in 2011

Flood Watch 2, NWS Wakefield, VA

March 10, 20117 counties in Virginia

NWS Wakefield, VA issued this flood watch at Mar 10, 2011, 3:58 AM EST for 7 counties in Virginia. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Mar 10, 2011, 3:58 AM EST (08:58 UTC)
Expired
Mar 10, 2011, 9:23 PM EST
In force
17 hr
Issued by
NWS Wakefield, VA

Counties Amelia County, VA, Cumberland County, VA, Fluvanna County, VA, Goochland County, VA, Nottoway County, VA, Powhatan County, VA, Prince Edward County, VA

The radar

The Norfolk radar (KAKQ), 112 km from the middle of the area, began a volume at 08:59 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, 9.0 hours before the alert went out and 222 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, Greensboro/Hi Pt, NC at 00:00Z on 2011-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2011-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 483 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
483 m²/s²
0-3 km storm-relative helicity
748 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 flood watch 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 flood watch went out at Mar 10, 1:16 AM EST, 2 hours 42 minutes earlier.

Area forecast discussion, Mar 10, 1:16 AM EST, 2 hours 42 minutes before
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Hazardous weather outlook, Mar 10, 1:23 AM EST, 2 hours 35 minutes before
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 4:03 AM ESTCoastal Flood AdvisoryAKQAccomack, Lancaster, Northumberland, Westmoreland29 hr
Mar 10, 1:53 PM ESTSpecial Weather StatementAKQCharles City, Chesterfield, Dinwiddie, Henrico, James City, New Kent and 7 more52 min
Mar 10, 2:47 PM ESTSpecial Weather StatementAKQHenrico, City of Hopewell43 min
Mar 10, 3:16 PM ESTSpecial Weather StatementAKQLunenburg, Mecklenburg59 min
Mar 10, 3:47 PM ESTSevere Thunderstorm WarningAKQLunenburg, Mecklenburg, Prince Edward58 min
Mar 10, 4:10 PM ESTSevere Thunderstorm WarningAKQCumberland, Prince Edward50 min
Mar 10, 4:25 PM ESTSpecial Weather StatementAKQBrunswick, Dinwiddie, Greensville, City of Emporia65 min
Mar 10, 4:36 PM ESTSpecial Weather StatementAKQAmelia, Goochland, Nottoway, Powhatan54 min
Mar 10, 4:38 PM ESTSevere Thunderstorm WarningAKQBrunswick, Dinwiddie, Greensville, Sussex52 min
Mar 10, 5:12 PM ESTSpecial Weather StatementAKQCaroline, Chesterfield, Dinwiddie, Goochland, Hanover, Henrico and 4 more63 min
Mar 10, 5:15 PM ESTSevere Thunderstorm WarningAKQCaroline, Goochland, Hanover, Louisa, Powhatan60 min
Mar 10, 5:28 PM ESTSevere Thunderstorm WarningAKQCharles City, Chesterfield, Dinwiddie, Hanover, Henrico, New Kent and 6 more47 min
Mar 10, 5:51 PM ESTSpecial Weather StatementAKQGreensville, Southampton, City of Chesapeake, City of Emporia, City of Franklin, City of Portsmouth and 1 more54 min
Mar 10, 6:10 PM ESTSevere Thunderstorm WarningAKQCharles City, Essex, Gloucester, Hanover, Henrico, James City and 7 more50 min
Mar 10, 6:20 PM ESTSevere Thunderstorm WarningAKQCaroline, Essex, King and Queen, King William, Richmond, Westmoreland40 min
Mar 10, 6:45 PM ESTSpecial Weather StatementAKQIsle of Wight, City of Chesapeake, City of Newport News, City of Norfolk, City of Portsmouth, City of Suffolk and 2 more60 min
Mar 10, 6:53 PM ESTSevere Thunderstorm WarningAKQEssex, Gloucester, King and Queen, Lancaster, Mathews, Middlesex and 4 more52 min

Nearby

Flood Watches in Virginia, 2011Every flood watch in 2011

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.