Alert archive / Virginia / Flash Flood Warnings in 2020

Flash Flood Warning 70, NWS Wakefield, VA

September 9, 2020Southampton County, Sussex County, Virginia; Hertford County, North Carolina

NWS Wakefield, VA issued this flash flood warning at Sep 9, 2020, 3:15 PM EDT for Southampton County, Sussex County, Virginia; Hertford County, North Carolina. It was in force for 3 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
Sep 9, 2020, 3:15 PM EDT (19:15 UTC)
Expired
Sep 9, 2020, 6:15 PM EDT
In force
3 hr
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Flood severity
None

Counties Hertford County, NC, Southampton County, VA, Sussex County, VA

The radar

The Norfolk radar (KAKQ), 37 km from the middle of the area, began a volume at 19:17 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

Newport, NC (KMHX), launched 12:00Z, 7.3 hours before the alert went out and 211 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, Newport, NC at 12:00Z on 2020-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1974 joules per kilogram.LCLLFCEL10008507005003002001001 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, Newport, NC at 12:00Z on 2020-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939Sfc1 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
1974 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Sep 9, 2:00 PM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Sep 9, 2:00 PM EDT, 1 hour 15 minutes before
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Hazardous weather outlook, Sep 9, 2:48 PM EDT, 27 minutes before
Hazardous Weather Outlook
National Weather Service Wakefield VA
248 PM EDT Wed Sep 9 2020

VAZ064-075>090-092-093-096-511>525-101900-
Caroline-Westmoreland-Richmond-Northumberland-Lancaster-Brunswick-
Dinwiddie-Prince George-Charles City-New Kent-Gloucester-Middlesex-
Mathews-Greensville-Sussex-Surry-James City-Southampton-
Isle of Wight-Suffolk-Western Hanover-Eastern Hanover-
Western Chesterfield-Eastern Chesterfield (Including Col. Heights)-
Western Henrico (Including the City of Richmond)-Eastern Henrico-
Western King William-Eastern King William-Western King and Queen-
Eastern King and Queen-Western Essex-Eastern Essex-York-Newport News-
Hampton/Poquoson-
248 PM EDT Wed Sep 9 2020

...FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY EVENING...

This Hazardous Weather Outlook is for central Virginia, east
central Virginia, eastern Virginia, north central Virginia, south
central Virginia and southeast Virginia.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flash Flood Watch.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ021>024-NCZ012>017-030>032-VAZ048-060>062-065>069-095-097-509-510-
101900-
Dorchester-Wicomico-Somerset-Inland Worcester-Northampton-Hertford-
Gates-Pasquotank-Camden-Western Currituck-Bertie-Chowan-Perquimans-
Fluvanna-Prince Edward-Cumberland-Goochland-Mecklenburg-Lunenburg-
Nottoway-Amelia-Powhatan-Norfolk/Portsmouth-Chesapeake-
Western Louisa-Eastern Louisa-
248 PM EDT Wed Sep 9 2020

This Hazardous Weather Outlook is for southeast Maryland, northeast
North Carolina, central Virginia, south central Virginia and
southeast Virginia.

.DAY ONE...This afternoon and tonight.

Scattered to numerous showers are expected through tonight. Locally
heavy rainfall from the showers could result in a few instances of
flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Numerous showers and isolated thunderstorms are expected each day
through at least the end of the week. Locally heavy rainfall from
the showers and storms could result in a few instances of flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ102-VAZ098-101900-
Eastern Currituck-Virginia Beach-
248 PM EDT Wed Sep 9 2020

...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for northeast North Carolina and
southeast Virginia.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Beach Hazards Statement.

Scattered to numerous showers are expected through tonight. Locally
heavy rainfall from the showers could result in a few instances of
flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Numerous showers and isolated thunderstorms are expected each day
through at least the end of the week. Locally heavy rainfall from
the showers and storms could result in a few instances of flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

MDZ025-VAZ099-100-101900-
Maryland Beaches-Accomack-Northampton-
248 PM EDT Wed Sep 9 2020

...MODERATE RIP CURRENT RISK IN EFFECT UNTIL 8 PM EDT THIS EVENING...

This Hazardous Weather Outlook is for southeast Maryland, eastern
Virginia and southeast Virginia.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   MODERATE RIP CURRENT RISK.

Scattered to numerous showers are expected through tonight. Locally
heavy rainfall from the showers could result in a few instances of
flooding.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Numerous showers and isolated thunderstorms are expected each day
through at least the end of the week. Locally heavy rainfall from
the showers and storms could result in a few instances of flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Sep 9, 11:44 AM EDT, 3 hours 31 minutes before
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Local storm report, Sep 9, 11:57 AM EDT, 3 hours 18 minutes before
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Local storm report, Sep 9, 12:00 PM EDT, 3 hours 15 minutes before
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Local storm report, Sep 9, 12:05 PM EDT, 3 hours 10 minutes before
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Special weather statement, Sep 9, 2:26 PM EDT, 49 minutes before
Special Weather Statement
National Weather Service Wakefield VA
226 PM EDT Wed Sep 9 2020

NCZ012-013-030-091915-
Hertford-Northampton-Bertie-
226 PM EDT Wed Sep 9 2020

...A THUNDERSTORM WITH HEAVY RAIN WILL AFFECT NORTHWESTERN BERTIE...
EASTERN NORTHAMPTON AND SOUTHWESTERN HERTFORD COUNTIES...

At 226 PM EDT, a thunderstorm with heavy rain was located over
Aulander, moving northwest at 20 mph.

Rainfall amounts of 1 to 2 inches are possible with this storm.

This storm will be near...
  Roxobel around 230 PM EDT.
  Rich Square and Woodland around 250 PM EDT.
  Conway around 305 PM EDT.

Other locations impacted by this storm include Eagletown, Milwaukee,
Pendleton, Kelford, Earleys, Potecasi, Menola, Lasker, Connaritsa and
Jackson.

Motorists should use extra caution in the vicinity of this storm. 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 3621 7739 3624 7738 3627 7741 3629 7741
      3632 7744 3632 7749 3631 7750 3631 7754
      3655 7726 3654 7724 3626 7698 3611 7715
TIME...MOT...LOC 1826Z 130DEG 18KT 3624 7715

BROWN
Special weather statement, Sep 9, 3:04 PM EDT, 11 minutes before
Special Weather Statement
National Weather Service Wakefield VA
304 PM EDT Wed Sep 9 2020

NCZ013-VAZ092-091930-
Hertford-Southampton-
304 PM EDT Wed Sep 9 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL HERTFORD AND SOUTH
CENTRAL SOUTHAMPTON COUNTIES...

At 303 PM EDT, a strong thunderstorm was located near Como, or 7
miles north of Murfreesboro, moving northwest at 15 mph.

Wind gusts up to 45 mph are possible with this storm. In
addition...Doppler radar has indicated weak rotation with this
storm. While a tornado is not immediately likely, remain alert for
any possible warnings.

Locations impacted include...
Boykins, Newsoms, Como, Sunbeam and Shiloh.

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.

Strong wind gusts are possible with this storm. These wind gusts are
capable of knocking down tree limbs, small or weakened trees, and
blowing around trash cans, potted plants, lawn furniture, and other
light outdoor objects.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3649 7707 3650 7707 3650 7708 3651 7708
      3652 7709 3652 7715 3654 7715 3655 7717
      3654 7721 3656 7725 3669 7715 3656 7697
      3647 7703
TIME...MOT...LOC 1903Z 127DEG 11KT 3655 7705

EI

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 9:41 PM EDTBeach Hazards StatementAKQAccomack, Northampton, City of Virginia Beach46 hr
Sep 9, 5:22 AM EDTAreal Flood AdvisoryAKQIsle of Wight, City of Suffolk3 hr
Sep 9, 5:57 AM EDTFlash Flood WarningAKQIsle of Wight7 hr
Sep 9, 6:36 AM EDTSmall Craft AdvisoryAKQ24 hr
Sep 9, 7:23 AM EDTFlash Flood WarningAKQIsle of Wight, Surry6 hr
Sep 9, 7:44 AM EDTAreal Flood AdvisoryAKQJames City, Surry, York, City of Williamsburg4 hr
Sep 9, 8:18 AM EDTAreal Flood AdvisoryAKQSouthampton, Surry, Sussex3 hr
Sep 9, 8:31 AM EDTAreal Flood AdvisoryAKQJames City, York, City of Newport News119 min
Sep 9, 9:14 AM EDTSpecial Weather StatementAKQSouthampton, City of Franklin61 min
Sep 9, 9:31 AM EDTAreal Flood AdvisoryAKQIsle of Wight, Southampton, City of Franklin, City of Suffolk119 min
Sep 9, 10:22 AM EDTFlash Flood WarningAKQSouthampton, City of Franklin, City of Suffolk3 hr
Sep 9, 11:09 AM EDTFlash Flood WarningAKQJames City, York, City of Williamsburg3 hr
Sep 9, 11:11 AM EDTAreal Flood AdvisoryAKQSouthampton3 hr
Sep 9, 11:22 AM EDTAreal Flood AdvisoryAKQIsle of Wight, Southampton, Surry, Sussex, City of Suffolk3 hr
Sep 9, 12:12 PM EDTFlash Flood WarningAKQSouthampton3 hr
Sep 9, 12:51 PM EDTAreal Flood WarningAKQIsle of Wight, Southampton, Surry, City of Suffolk3 hr
Sep 9, 2:07 PM EDTAreal Flood AdvisoryAKQJames City, York, City of Williamsburg113 min
Sep 9, 2:10 PM EDTAreal Flood AdvisoryAKQSouthampton, Sussex3 hr
Sep 9, 2:26 PM EDTFlash Flood WatchAKQAccomack, Brunswick, Caroline, Charles City, Chesterfield, Dinwiddie and 33 more31 hr
Sep 9, 3:04 PM EDTSpecial Weather StatementAKQSouthampton26 min
Sep 9, 3:50 PM EDTSpecial Weather StatementAKQSouthampton40 min
Sep 9, 4:11 PM EDTFlash Flood Warning Considerable damage threatAKQSouthampton3 hr
Sep 9, 4:39 PM EDTAreal Flood AdvisoryAKQSurry, Sussex3 hr
Sep 9, 4:45 PM EDTAreal Flood AdvisoryAKQSouthampton3 hr
Sep 9, 7:14 PM EDTAreal Flood WarningAKQSouthampton12 hr
Sep 9, 2:26 PM EDTSpecial Weather StatementAKQNorthampton49 min
Sep 9, 2:59 PM EDTAreal Flood AdvisoryAKQBertie3 hr
Sep 9, 3:30 PM EDTAreal Flood AdvisoryAKQHertford, Northampton3 hr

Nearby

Flash Flood Warnings in Virginia, 2020Flash Flood Warnings in North Carolina, 2020Every flash flood warning in 2020

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.