Alert archive / Virginia / Flash Flood Warnings in 2022

Flash Flood Warning 12, NWS Wakefield, VA

July 15, 2022City of Petersburg, Virginia

NWS Wakefield, VA issued this flash flood warning at Jul 15, 2022, 5:24 PM EDT for City of Petersburg, 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: Jul 15, 2022, 5:24 PM EDT (21:24 UTC)
Expired: Jul 15, 2022, 7:30 PM EDT
In force: 2 hr
Issued by: NWS Wakefield, VA
Area: Storm-based polygon
Flood severity: None

County City of Petersburg, VA

The radar

The Norfolk radar (KAKQ), 44 km from the middle of the area, began a volume at 21:24 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, 9.4 hours before the alert went out and 193 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: 307 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1357 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

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 15, 3:58 PM EDT, 1 hour 26 minutes earlier.

Area forecast discussion, Jul 15, 3:58 PM EDT, 1 hour 26 minutes before

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Hazardous weather outlook, Jul 15, 4:01 PM EDT, 1 hour 23 minutes before

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In the hours before

Local storm report, Jul 15, 4:01 PM EDT, 1 hour 23 minutes before

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Local storm report, Jul 15, 4:08 PM EDT, 1 hour 16 minutes before

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Local storm report, Jul 15, 4:16 PM EDT, 1 hour 8 minutes before

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Local storm report, Jul 15, 4:41 PM EDT, 43 minutes before

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Special weather statement, Jul 15, 5:03 PM EDT, 21 minutes before

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Special weather statement, Jul 15, 5:07 PM EDT, 17 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 14, 10:49 PM EDT	Special Weather Statement	AKQ	Louisa	41 min
Jul 14, 11:51 PM EDT	Areal Flood Advisory	AKQ	Louisa	114 min
Jul 15, 3:56 AM EDT	Special Marine Warning	AKQ		49 min
Jul 15, 1:15 PM EDT	Special Weather Statement	AKQ	Middlesex	45 min
Jul 15, 1:23 PM EDT	Special Marine Warning	AKQ		82 min
Jul 15, 1:27 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, Middlesex	33 min
Jul 15, 2:08 PM EDT	Special Weather Statement	AKQ	Gloucester, James City, Mathews, City of Williamsburg	52 min
Jul 15, 2:20 PM EDT	Special Marine Warning	AKQ		70 min
Jul 15, 2:23 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, Mathews, Middlesex	25 min
Jul 15, 2:41 PM EDT	Special Weather Statement	AKQ	York, City of Newport News, City of Poquoson	49 min
Jul 15, 2:47 PM EDT	Special Weather Statement	AKQ	Accomack	28 min
Jul 15, 3:03 PM EDT	Areal Flood Advisory	AKQ	James City, York, City of Williamsburg	117 min
Jul 15, 3:15 PM EDT	Flash Flood Warning	AKQ	York	3 hr
Jul 15, 3:21 PM EDT	Special Marine Warning	AKQ		84 min
Jul 15, 3:27 PM EDT	Flash Flood Warning	AKQ	James City, York, City of Williamsburg	3 hr
Jul 15, 3:41 PM EDT	Special Marine Warning	AKQ		94 min
Jul 15, 3:55 PM EDT	Special Weather Statement	AKQ	Dinwiddie, Prince George, City of Petersburg	65 min
Jul 15, 3:56 PM EDT	Special Weather Statement	AKQ	Greensville, City of Emporia	64 min
Jul 15, 5:03 PM EDT	Special Weather Statement	AKQ	Greensville	57 min
Jul 15, 5:07 PM EDT	Special Weather Statement	AKQ	Sussex	38 min
Jul 15, 5:11 PM EDT	Areal Flood Advisory	AKQ	Dinwiddie, City of Colonial Heights, City of Petersburg	2 hr
Jul 15, 5:19 PM EDT	Flash Flood Warning	AKQ	Sussex	3 hr
Jul 15, 5:51 PM EDT	Special Weather Statement	AKQ	City of Franklin	39 min
Jul 15, 7:43 PM EDT	Special Weather Statement	AKQ	Chowan	47 min
Jul 15, 3:18 AM EDT	Special Weather Statement	AKQ	Worcester	42 min

Nearby

Flash Flood Warnings in Virginia, 2022 Every flash flood warning in 2022

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.