Alert archive / Virginia / Flash Flood Warnings in 2022

Flash Flood Warning 24, NWS Morristown, TN

July 28, 2022Wise County, Virginia

NWS Morristown, TN issued this flash flood warning at Jul 28, 2022, 2:17 AM EDT for Wise County, Virginia. It was in force for 11 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 28, 2022, 2:17 AM EDT (06:17 UTC)
Expired: Jul 28, 2022, 1:00 PM EDT
In force: 11 hr
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Flood severity: None

County Wise County, VA

The radar

The Jackson,KY radar (KJKL), 92 km from the middle of the area, began a volume at 06:18 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

Roanoke, VA (KRNK), launched 00:00Z, 6.3 hours before the alert went out and 278 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: 421 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 179 m²/s²
0-3 km storm-relative helicity: 179 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 10.6

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 Morristown, TN wrote its last area forecast discussion before this flash flood warning went out at Jul 28, 1:47 AM EDT, 30 minutes earlier.

Area forecast discussion, Jul 28, 1:47 AM EDT, 30 minutes before

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Hazardous weather outlook, Jul 27, 3:37 PM EDT, 10 hours 40 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 2:32 AM EDT	Flood Watch	MRX	Anderson, Campbell, Carter, Claiborne, Grainger, Greene and 12 more	43 hr
Jul 28, 5:16 AM EDT	Areal Flood Advisory	MRX	Johnson	3 hr
Jul 28, 1:17 PM EDT	Special Weather Statement	MRX	Carter, Sullivan	43 min
Jul 28, 3:30 PM EDT	Special Weather Statement	MRX	Carter, Sullivan, Washington	45 min
Jul 28, 4:14 PM EDT	Special Weather Statement	MRX	Anderson, Campbell	46 min
Jul 28, 4:23 PM EDT	Areal Flood Advisory	MRX	Anderson, Knox, Roane, Union	3 hr
Jul 28, 4:34 PM EDT	Areal Flood Advisory	MRX	Carter, Sullivan, Washington	3 hr
Jul 28, 4:39 PM EDT	Areal Flood Advisory	MRX	Anderson, Morgan, Scott	4 hr
Jul 28, 4:42 PM EDT	Special Weather Statement	MRX	Knox	48 min
Jul 28, 4:50 PM EDT	Areal Flood Advisory	MRX	Campbell, Scott	3 hr
Jul 28, 6:54 PM EDT	Areal Flood Advisory	MRX	Blount, Knox, Loudon	3 hr
Jul 28, 7:15 PM EDT	Special Weather Statement	MRX	Bledsoe	45 min
Jul 28, 12:58 AM EDT	Areal Flood Advisory	MRX	Russell, Wise, City of Norton	4 hr
Jul 28, 6:35 AM EDT	Areal Flood Advisory	MRX	Lee, Russell, Scott, Wise, City of Norton	5 hr
Jul 28, 7:02 AM EDT	Flash Flood Warning	MRX	Scott, Wise, City of Norton	6 hr
Jul 28, 12:47 PM EDT	Areal Flood Warning	MRX	Wise, City of Norton	4 hr

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.