Alert archive / Virginia / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 155, NWS Morristown, TN

August 2, 20244 counties in Virginia

NWS Morristown, TN issued this severe thunderstorm warning at Aug 2, 2024, 11:32 AM EDT for 4 counties in Virginia. It was in force for 43 min. 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 2, 2024, 11:32 AM EDT (15:32 UTC)
Expired
Aug 2, 2024, 12:15 PM EDT
In force
43 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties City of Norton, VA, Lee County, VA, Scott County, VA, Wise County, VA

The radar

The Knoxville radar (KMRX), 94 km from the middle of the area, began a volume at 15:36 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 3.5 hours before the alert went out and 268 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2024-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 811 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2024-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
811 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
1010 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
4 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 severe thunderstorm 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 severe thunderstorm warning went out at Aug 2, 9:47 AM EDT, 1 hour 45 minutes earlier.

Area forecast discussion, Aug 2, 9:47 AM EDT, 1 hour 45 minutes before
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Hazardous weather outlook, Aug 2, 4:09 AM EDT, 7 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Morristown TN
409 AM EDT Fri Aug 2 2024

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-030815-
Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins-
Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen-
Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-
Southeast Greene-Washington TN-Unicoi-Northwest Carter-
Southeast Carter-Roane-Loudon-Knox-Jefferson-Northwest Blount-
Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains-
Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Northwest Monroe-
Southeast Monroe-Marion-Hamilton-Bradley-West Polk-East Polk-Lee-
Wise-Scott VA-Russell-Washington VA-
409 AM EDT Fri Aug 2 2024 /309 AM CDT Fri Aug 2 2024/

This Hazardous Weather Outlook is for portions of southwest North
Carolina...east Tennessee and southwest Virginia.

.DAY ONE...Today and Tonight

Widespread thunderstorms are expected once again this afternoon
and evening. A few strong to severe storms could produce some
damaging winds. Additionally, slow moving storms could lead to
a localized flash flooding threat as well.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter reports of flooding and damaging winds are encouraged.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 8:29 PM EDTSevere Thunderstorm WarningMRXClaiborne, Hancock46 min
Aug 1, 8:53 PM EDTSpecial Weather StatementMRXAnderson, Claiborne, Knox, Union52 min
Aug 1, 8:55 PM EDTSevere Thunderstorm WarningMRXAnderson, Knox, Union50 min
Aug 1, 9:04 PM EDTSevere Thunderstorm WarningMRXAnderson, Blount, Knox, Loudon41 min
Aug 1, 9:08 PM EDTSevere Thunderstorm WarningMRXClaiborne, Grainger, Hancock, Jefferson, Union52 min
Aug 1, 9:41 PM EDTSevere Thunderstorm WarningMRXCocke, Grainger, Greene, Hamblen, Hancock, Hawkins and 1 more49 min
Aug 1, 9:43 PM EDTSevere Thunderstorm WarningMRXCocke, Grainger, Greene, Hamblen, Hancock, Hawkins and 1 more47 min
Aug 1, 9:48 PM EDTSevere Thunderstorm WarningMRXBlount, Cocke, Grainger, Greene, Hamblen, Jefferson and 3 more57 min
Aug 1, 10:30 PM EDTSpecial Weather StatementMRXGreene, Hamblen45 min
Aug 1, 10:43 PM EDTSpecial Weather StatementMRXBlount, Cocke, Sevier62 min
Aug 2, 1:37 PM EDTAreal Flood AdvisoryMRXCarter, Greene, Hawkins, Johnson, Sullivan, Unicoi and 1 more113 min
Aug 2, 1:55 PM EDTFlash Flood WarningMRXCarter, Sullivan, Washington5 hr
Aug 2, 2:52 PM EDTSpecial Weather StatementMRXCampbell53 min
Aug 2, 3:10 PM EDTAreal Flood AdvisoryMRXCampbell, Scott4 hr
Aug 2, 3:19 PM EDTSpecial Weather StatementMRXScott41 min
Aug 2, 3:26 PM EDTFlash Flood WarningMRXGreene4 hr
Aug 2, 4:06 PM EDTSpecial Weather StatementMRXClaiborne39 min
Aug 2, 4:16 PM EDTSevere Thunderstorm WarningMRXHawkins38 min
Aug 2, 4:34 PM EDTSpecial Weather StatementMRXScott41 min
Aug 2, 4:45 PM EDTAreal Flood AdvisoryMRXClaiborne, Hancock, Hawkins, Union2 hr
Aug 2, 5:08 PM EDTSevere Thunderstorm WarningMRXAnderson, Campbell, Scott, Union26 min
Aug 2, 5:18 PM EDTFlash Flood Warning Considerable damage threatMRXClaiborne3 hr
Aug 2, 5:21 PM EDTSpecial Weather StatementMRXHancock39 min
Aug 2, 5:28 PM EDTFlash Flood WarningMRXCampbell, Claiborne, Hancock, Hawkins, Union3 hr
Aug 2, 6:08 PM EDTSpecial Weather StatementMRXCampbell52 min
Aug 2, 6:33 PM EDTSevere Thunderstorm WarningMRXAnderson, Campbell, Scott27 min
Aug 2, 6:40 PM EDTSpecial Weather StatementMRXGrainger, Hamblen50 min
Aug 2, 7:01 PM EDTSpecial Weather StatementMRXAnderson, Union44 min
Aug 2, 7:06 PM EDTFlash Flood WarningMRXClaiborne, Grainger, Hancock, Hawkins, Union2 hr
Aug 2, 7:30 PM EDTFlash Flood WarningMRXAnderson, Campbell, Knox, Morgan, Scott, Union3 hr
Aug 2, 7:39 PM EDTSpecial Weather StatementMRXGrainger, Union51 min
Aug 1, 9:37 PM EDTSpecial Weather StatementMRXCity of Norton38 min
Aug 2, 12:11 PM EDTSpecial Weather StatementMRXWise, City of Norton49 min
Aug 2, 12:38 PM EDTSpecial Weather StatementMRXCity of Bristol52 min
Aug 2, 1:10 PM EDTSpecial Weather StatementMRXWashington, City of Bristol65 min
Aug 2, 1:26 PM EDTSevere Thunderstorm WarningMRXWashington34 min
Aug 2, 3:47 PM EDTSpecial Weather StatementMRXLee43 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2024Every severe thunderstorm 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.