Alert archive / Virginia / Flash Flood Warnings in 2023

Flash Flood Warning 30, NWS Wakefield, VA

July 9, 2023City of Chesapeake, City of Virginia Beach, Virginia

NWS Wakefield, VA issued this flash flood warning at Jul 9, 2023, 4:40 PM EDT for City of Chesapeake, City of Virginia Beach, Virginia. It was in force for 4 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: Jul 9, 2023, 4:40 PM EDT (20:40 UTC)
Expired: Jul 9, 2023, 8:23 PM EDT
In force: 4 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

Counties City of Chesapeake, VA, City of Virginia Beach, VA

The radar

The Norfolk radar (KAKQ), 81 km from the middle of the area, began a volume at 20:44 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, 8.7 hours before the alert went out and 151 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: 1082 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 603 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

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 Jul 9, 3:52 PM EDT, 48 minutes earlier.

Area forecast discussion, Jul 9, 3:52 PM EDT, 48 minutes before

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Hazardous weather outlook, Jul 9, 4:40 PM EDT, 0 minutes before

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In the hours before

Local storm report, Jul 9, 4:21 PM EDT, 19 minutes before

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Local storm report, Jul 9, 4:28 PM EDT, 12 minutes before

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Local storm report, Jul 9, 4:29 PM EDT, 11 minutes before

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Local storm report, Jul 9, 4:31 PM EDT, 9 minutes before

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Local storm report, Jul 9, 4:32 PM EDT, 8 minutes before

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Special weather statement, Jul 9, 4:40 PM EDT, 0 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
Jul 9, 3:29 AM EDT	Flood Watch	AKQ	Accomack, Caroline, Charles City, Chesterfield, Dinwiddie, Essex and 32 more	18 hr
Jul 9, 5:45 AM EDT	Special Marine Warning	AKQ		60 min
Jul 9, 12:37 PM EDT	Special Weather Statement	AKQ	Cumberland, Fluvanna, Lunenburg, Mecklenburg, Prince Edward	68 min
Jul 9, 1:25 PM EDT	Severe Thunderstorm Warning	AKQ	Mecklenburg	50 min
Jul 9, 1:37 PM EDT	Special Weather Statement	AKQ	Amelia, Caroline, Goochland, Hanover, Louisa, Powhatan and 1 more	53 min
Jul 9, 1:39 PM EDT	Flash Flood Warning	AKQ	Fluvanna	112 min
Jul 9, 2:14 PM EDT	Flash Flood Warning	AKQ	Mecklenburg	86 min
Jul 9, 2:14 PM EDT	Severe Thunderstorm Warning	AKQ	Mecklenburg	46 min
Jul 9, 2:29 PM EDT	Special Weather Statement	AKQ	Amelia, Caroline, Chesterfield, Goochland, Hanover, Louisa and 2 more	46 min
Jul 9, 2:32 PM EDT	Special Weather Statement	AKQ	Nottoway	43 min
Jul 9, 2:58 PM EDT	Special Weather Statement	AKQ	Brunswick	47 min
Jul 9, 3:03 PM EDT	Special Weather Statement	AKQ	Caroline, Hanover, City of Richmond	42 min
Jul 9, 3:04 PM EDT	Special Marine Warning	AKQ		56 min
Jul 9, 3:07 PM EDT	Flash Flood Warning	AKQ	Nottoway	69 min
Jul 9, 3:08 PM EDT	Flash Flood Warning	AKQ	Westmoreland	3 hr
Jul 9, 3:20 PM EDT	Special Weather Statement	AKQ	Northumberland	40 min
Jul 9, 3:29 PM EDT	Areal Flood Advisory	AKQ	Chesterfield, Goochland, Henrico, Powhatan	80 min
Jul 9, 3:34 PM EDT	Special Marine Warning	AKQ		56 min
Jul 9, 3:39 PM EDT	Special Weather Statement	AKQ	Westmoreland	51 min
Jul 9, 3:52 PM EDT	Flash Flood Warning Considerable damage threat	AKQ	Westmoreland	2 hr
Jul 9, 3:57 PM EDT	Special Weather Statement	AKQ	Northampton	63 min
Jul 9, 3:59 PM EDT	Severe Thunderstorm Warning	AKQ	City of Virginia Beach	31 min
Jul 9, 4:01 PM EDT	Special Marine Warning	AKQ		59 min
Jul 9, 4:01 PM EDT	Special Marine Warning	AKQ		44 min
Jul 9, 4:01 PM EDT	Special Weather Statement	AKQ	Northumberland	44 min
Jul 9, 4:07 PM EDT	Special Weather Statement	AKQ	City of Hampton, City of Poquoson	38 min
Jul 9, 4:26 PM EDT	Areal Flood Advisory	AKQ	City of Virginia Beach	64 min
Jul 9, 4:28 PM EDT	Flash Flood Warning	AKQ	City of Hampton, City of Newport News	56 min
Jul 9, 4:29 PM EDT	Special Marine Warning	AKQ		61 min
Jul 9, 5:02 PM EDT	Special Marine Warning	AKQ		58 min
Jul 9, 5:08 PM EDT	Special Marine Warning	AKQ		67 min
Jul 9, 5:10 PM EDT	Special Marine Warning	AKQ		65 min
Jul 9, 5:16 PM EDT	Special Marine Warning	AKQ		74 min
Jul 9, 5:52 PM EDT	Special Weather Statement	AKQ	Accomack	38 min
Jul 9, 6:01 PM EDT	Special Weather Statement	AKQ	Gloucester	44 min
Jul 9, 6:16 PM EDT	Special Marine Warning	AKQ		89 min
Jul 9, 6:24 PM EDT	Areal Flood Advisory	AKQ	City of Chesapeake, City of Norfolk, City of Portsmouth, City of Virginia Beach	2 hr
Jul 9, 7:02 PM EDT	Special Weather Statement	AKQ	Northampton	43 min
Jul 8, 8:18 PM EDT	Special Weather Statement	AKQ	Northampton	72 min
Jul 9, 4:15 PM EDT	Special Weather Statement	AKQ	Pasquotank, Perquimans	30 min
Jul 9, 4:40 PM EDT	Special Weather Statement	AKQ	Camden, Currituck	65 min
Jul 9, 4:56 PM EDT	Special Weather Statement	AKQ	Camden, Currituck	64 min
Jul 9, 6:42 PM EDT	Special Weather Statement	AKQ	Worcester	48 min

Nearby

Flash Flood Warnings in Virginia, 2023 Every flash flood warning in 2023

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.