Alert archive / Virginia / Flash Flood Warnings in 2020

Flash Flood Warning 74, NWS Wakefield, VA

September 10, 2020Essex County, Richmond County, Westmoreland County, Virginia

NWS Wakefield, VA issued this flash flood warning at Sep 10, 2020, 3:12 PM EDT for Essex County, Richmond County, Westmoreland County, Virginia. 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 10, 2020, 3:12 PM EDT (19:12 UTC)
Expired: Sep 10, 2020, 5:52 PM EDT
In force: 3 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

Counties Essex County, VA, Richmond County, VA, Westmoreland County, VA

The radar

The Norfolk radar (KAKQ), 114 km from the middle of the area, began a volume at 19:13 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.2 hours before the alert went out and 125 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: 1088 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 575 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.9

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 10, 1:50 PM EDT, 1 hour 22 minutes earlier.

Area forecast discussion, Sep 10, 1:50 PM EDT, 1 hour 22 minutes before

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Hazardous weather outlook, Sep 10, 9:16 AM EDT, 5 hours 56 minutes before

Hazardous Weather Outlook
National Weather Service Wakefield VA
916 AM EDT Thu Sep 10 2020

MDZ021>024-NCZ012>017-030>032-VAZ064-075>090-092-093-095>097-511>525-
111330-
Dorchester-Wicomico-Somerset-Inland Worcester-Northampton-Hertford-
Gates-Pasquotank-Camden-Western Currituck-Bertie-Chowan-Perquimans-
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-Norfolk/Portsmouth-Suffolk-Chesapeake-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-
916 AM EDT Thu Sep 10 2020

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

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

.DAY ONE...Today 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...Friday through Wednesday.

Numerous showers and isolated thunderstorms are expected each day
on each day from Friday through Monday. 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.

VAZ048-060>062-065>069-509-510-111330-
Fluvanna-Prince Edward-Cumberland-Goochland-Mecklenburg-Lunenburg-
Nottoway-Amelia-Powhatan-Western Louisa-Eastern Louisa-
916 AM EDT Thu Sep 10 2020

This Hazardous Weather Outlook is for central Virginia and south
central Virginia.

.DAY ONE...Today 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...Friday through Wednesday.

Numerous showers and isolated thunderstorms are expected each day
on each day from Friday through Monday. 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-NCZ102-VAZ098>100-111330-
Maryland Beaches-Eastern Currituck-Virginia Beach-Accomack-
Northampton-
916 AM EDT Thu Sep 10 2020

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...
...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

.DAY ONE...Today 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.
   Flash Flood Watch.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Numerous showers and isolated thunderstorms are expected each day
on each day from Friday through Monday. 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

Special weather statement, Sep 10, 9:57 AM EDT, 5 hours 15 minutes before

Special Weather Statement
National Weather Service Wakefield VA
957 AM EDT Thu Sep 10 2020

VAZ093-096-101445-
Isle of Wight-Suffolk-
957 AM EDT Thu Sep 10 2020

...A THUNDERSTORM WITH HEAVY RAIN WILL AFFECT CENTRAL ISLE OF WIGHT
AND THE CENTRAL CITY OF SUFFOLK...

At 957 AM EDT, a thunderstorm with heavy rain was located near
Suffolk, or near Holland, moving north at 15 mph.

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

Locations impacted include...
Smithfield, Windsor, Downtown Suffolk, Holland, Suffolk, Isle Of
Wight, Kings Fork, Zuni, Carrollton, Longview, Benns Church, Lummis,
Suffolk Airport, Wills Corner, Bethel Church, Chuckatuck, Indika,
Central Hill, Whitley and Collosse.

Torrential rainfall is occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3665 7682 3688 7683 3688 7682 3689 7682
      3689 7683 3698 7683 3695 7650 3664 7660
TIME...MOT...LOC 1357Z 186DEG 12KT 3672 7671

Butner

Special weather statement, Sep 10, 10:03 AM EDT, 5 hours 9 minutes before

Special Weather Statement
National Weather Service Wakefield VA
1003 AM EDT Thu Sep 10 2020

NCZ031-032-101500-
Perquimans-Chowan-
1003 AM EDT Thu Sep 10 2020

...A THUNDERSTORM WITH HEAVY RAINFALL WILL AFFECT PERQUIMANS AND
SOUTHEASTERN CHOWAN COUNTIES...

At 1002 AM EDT, a thunderstorm with heavy rain was located over Snug
Harbor, or 7 miles southeast of Hertford, moving north at 15 mph.

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

Locations impacted include...
Hertford, Winfall, Chapanoke, Burgess, Snug Harbor, Drummond Point,
Saint Johns, Parkville, Center Hill, Yeopim Station, Forestburg,
Beach Springs, Light Nixon Fork, Smithtown, Harvey Point and
Somerset.

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 7662 3631 7641 3628 7638 3626 7637
      3624 7634 3611 7627 3608 7633 3609 7635
      3609 7639 3608 7645 3607 7641 3602 7647
      3601 7651 3601 7655
TIME...MOT...LOC 1402Z 162DEG 13KT 3610 7639

05

Special weather statement, Sep 10, 10:31 AM EDT, 4 hours 41 minutes before

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Special weather statement, Sep 10, 11:16 AM EDT, 3 hours 56 minutes before

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Local storm report, Sep 10, 11:37 AM EDT, 3 hours 35 minutes before

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Local storm report, Sep 10, 11:39 AM EDT, 3 hours 33 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 9, 10:46 PM EDT	Areal Flood Warning	AKQ	Isle of Wight, Southampton	33 hr
Sep 10, 3:01 AM EDT	Areal Flood Advisory	AKQ	Gloucester, Lancaster, Mathews, Middlesex	3 hr
Sep 10, 3:47 AM EDT	Flash Flood Warning	AKQ	Lancaster, Middlesex	3 hr
Sep 10, 4:25 AM EDT	Areal Flood Advisory	AKQ	Essex, King and Queen, Middlesex	3 hr
Sep 10, 4:32 AM EDT	Areal Flood Advisory	AKQ	Hanover, King and Queen, King William	3 hr
Sep 10, 5:18 AM EDT	Areal Flood Advisory	AKQ	Richmond, Westmoreland	3 hr
Sep 10, 5:53 AM EDT	Areal Flood Advisory	AKQ	Lancaster, Northumberland	2 hr
Sep 10, 6:09 AM EDT	Special Weather Statement	AKQ	Gloucester	51 min
Sep 10, 6:46 AM EDT	Areal Flood Advisory	AKQ	Lancaster, Middlesex	119 min
Sep 10, 6:46 AM EDT	Special Weather Statement	AKQ	City of Norfolk, City of Portsmouth	44 min
Sep 10, 7:20 AM EDT	Areal Flood Warning	AKQ	Essex, King and Queen, Lancaster, Middlesex	6 hr
Sep 10, 7:40 AM EDT	Areal Flood Advisory	AKQ	Northampton	3 hr
Sep 10, 8:01 AM EDT	Special Weather Statement	AKQ	City of Chesapeake	44 min
Sep 10, 8:57 AM EDT	Special Weather Statement	AKQ	City of Virginia Beach	48 min
Sep 10, 9:57 AM EDT	Special Weather Statement	AKQ	Isle of Wight, City of Suffolk	48 min
Sep 10, 10:14 AM EDT	Flash Flood Warning	AKQ	Lancaster, Middlesex	3 hr
Sep 10, 10:31 AM EDT	Areal Flood Advisory	AKQ	Isle of Wight, City of Suffolk	3 hr
Sep 10, 11:16 AM EDT	Special Weather Statement	AKQ	Isle of Wight	44 min
Sep 10, 2:51 PM EDT	Areal Flood Advisory	AKQ	Essex, Richmond, Westmoreland	21 min
Sep 10, 3:32 PM EDT	Areal Flood Advisory	AKQ	Essex, Hanover, King and Queen, King William, New Kent	3 hr
Sep 10, 3:40 PM EDT	Areal Flood Advisory	AKQ	Essex, Richmond, Westmoreland	3 hr
Sep 10, 4:05 PM EDT	Flash Flood Warning	AKQ	Hanover, King and Queen, King William, New Kent	3 hr
Sep 10, 4:48 PM EDT	Areal Flood Advisory	AKQ	Charles City, Chesterfield, Henrico, Prince George, City of Hopewell	3 hr
Sep 10, 5:35 PM EDT	Areal Flood Advisory	AKQ	Dinwiddie, Greensville, Prince George, Sussex, City of Emporia	3 hr
Sep 10, 5:52 PM EDT	Areal Flood Warning	AKQ	Essex, Richmond, Westmoreland	6 hr
Sep 10, 6:00 PM EDT	Special Weather Statement	AKQ	Richmond	45 min
Sep 10, 6:04 PM EDT	Areal Flood Advisory	AKQ	Charles City, Dinwiddie, Prince George, City of Petersburg	3 hr
Sep 10, 6:57 PM EDT	Flash Flood Warning	AKQ	Prince George, City of Hopewell, City of Petersburg	2 hr
Sep 10, 7:32 PM EDT	Areal Flood Advisory	AKQ	Charles City, Isle of Wight, James City, Prince George, Southampton, Surry and 3 more	3 hr
Sep 10, 9:02 AM EDT	Areal Flood Advisory	AKQ	Camden, Currituck, Pasquotank, Perquimans	3 hr
Sep 10, 9:34 AM EDT	Special Weather Statement	AKQ	Currituck	41 min
Sep 10, 10:03 AM EDT	Special Weather Statement	AKQ	Perquimans	57 min
Sep 10, 10:31 AM EDT	Special Weather Statement	AKQ	Chowan	59 min
Sep 10, 5:46 AM EDT	Special Weather Statement	AKQ	Worcester	59 min
Sep 10, 6:15 AM EDT	Special Weather Statement	AKQ	Dorchester	45 min
Sep 10, 8:09 AM EDT	Areal Flood Advisory	AKQ	Dorchester	3 hr

Nearby

Flash Flood Warnings in Virginia, 2020 Every 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.