Alert archive / Virginia / Flash Flood Warnings in 2024

Flash Flood Warning 92, NWS Wakefield, VA

August 10, 2024City of Norfolk, City of Portsmouth, Virginia

NWS Wakefield, VA issued this flash flood warning at Aug 10, 2024, 2:17 PM EDT for City of Norfolk, City of Portsmouth, Virginia. It was in force for 2 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: Aug 10, 2024, 2:17 PM EDT (18:17 UTC)
Expired: Aug 10, 2024, 4:30 PM EDT
In force: 2 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

Counties City of Norfolk, VA, City of Portsmouth, VA

The radar

The Norfolk radar (KAKQ), 66 km from the middle of the area, began a volume at 18:20 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, 6.3 hours before the alert went out and 238 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: 2053 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 611 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -61 m²/s²
0-3 km storm-relative helicity: -33 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 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 Aug 10, 1:56 PM EDT, 21 minutes earlier.

Area forecast discussion, Aug 10, 1:56 PM EDT, 21 minutes before

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Hazardous weather outlook, Aug 10, 9:20 AM EDT, 4 hours 57 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
Aug 9, 8:05 PM EDT	Special Weather Statement	AKQ	King William	40 min
Aug 9, 8:48 PM EDT	Special Weather Statement	AKQ	King William	42 min
Aug 9, 10:40 PM EDT	Special Weather Statement	AKQ	King and Queen	50 min
Aug 10, 4:07 AM EDT	Flood Watch	AKQ	City of Chesapeake, City of Virginia Beach	16 hr
Aug 10, 9:18 AM EDT	Coastal Flood Advisory	AKQ	City of Virginia Beach	15 hr
Aug 10, 1:54 PM EDT	Areal Flood Advisory	AKQ	Surry, Sussex	3 hr
Aug 10, 2:32 PM EDT	Special Weather Statement	AKQ	City of Chesapeake	28 min
Aug 10, 3:01 PM EDT	Flash Flood Warning	AKQ	City of Chesapeake, City of Virginia Beach	2 hr
Aug 10, 3:39 PM EDT	Special Marine Warning	AKQ		66 min
Aug 10, 4:36 PM EDT	Special Marine Warning	AKQ		69 min
Aug 10, 3:14 PM EDT	Special Weather Statement	AKQ	Camden	46 min
Aug 10, 3:55 PM EDT	Special Weather Statement	AKQ	Camden, Currituck	50 min
Aug 10, 4:12 PM EDT	Special Weather Statement	AKQ	Chowan	48 min
Aug 10, 4:44 PM EDT	Flash Flood Warning	AKQ	Chowan, Perquimans	3 hr
Aug 10, 4:47 PM EDT	Special Weather Statement	AKQ	Camden, Currituck	43 min
Aug 10, 4:51 PM EDT	Severe Thunderstorm Warning	AKQ	Camden, Currituck	39 min
Aug 10, 5:08 PM EDT	Flash Flood Warning	AKQ	Camden, Currituck, Pasquotank	3 hr
Aug 10, 5:33 PM EDT	Special Weather Statement	AKQ	Hertford	42 min
Aug 10, 6:12 PM EDT	Special Weather Statement	AKQ	Hertford	48 min

Nearby

Flash Flood Warnings in Virginia, 2024 Every flash flood warning in 2024

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.