Alert archive / Virginia / Special Weather Statements in 2022

Special Weather Statement, NWS Morristown, TN

August 15, 2022Washington County, Virginia

NWS Morristown, TN issued this special weather statement at Aug 15, 2022, 3:08 PM EDT for Washington County, Virginia. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 15, 2022, 3:08 PM EDT (19:08 UTC)
Expired: Aug 15, 2022, 3:30 PM EDT
In force: 22 min
Issued by: NWS Morristown, TN
Hail: 0.25 in
Wind: 30

County Washington County, VA

The radar

The Roanoke radar (KFCX), 136 km from the middle of the area, began a volume at 19:10 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, 7.1 hours before the alert went out and 183 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: 12 J/kg
Mixed-layer CIN: -175 J/kg
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 15, 1:59 PM EDT, 1 hour 9 minutes earlier.

Area forecast discussion, Aug 15, 1:59 PM EDT, 1 hour 9 minutes before

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Hazardous weather outlook, Aug 15, 3:26 AM EDT, 11 hours 42 minutes before

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In the hours before

Special weather statement, Aug 15, 3:08 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Morristown TN
308 PM EDT Mon Aug 15 2022

VAZ008-151930-
Washington VA-
308 PM EDT Mon Aug 15 2022

...A strong thunderstorm will impact portions of northeastern
Washington County through 330 PM EDT...

At 307 PM EDT, Doppler radar was tracking a strong thunderstorm near
Chilhowie, moving east at 30 mph.

HAZARD...Winds in excess of 30 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Glade Spring, Konnarock and Emory-Meadow View.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Heavy rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent lightning is occurring with this storm. Lightning can
strike 10 miles away from a thunderstorm. Seek a safe shelter inside
a building or vehicle.

&&

LAT...LON 3669 8184 3687 8182 3687 8178 3679 8170
      3665 8163
TIME...MOT...LOC 1907Z 277DEG 26KT 3678 8174

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH

Td

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 11:22 PM EDT	Areal Flood Advisory	MRX	Sullivan	113 min
Aug 14, 11:33 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	42 min
Aug 15, 12:13 AM EDT	Severe Thunderstorm Warning	MRX	Carter, Johnson, Sullivan	62 min
Aug 15, 12:44 AM EDT	Areal Flood Advisory	MRX	Carter, Johnson, Sullivan	2 hr
Aug 15, 3:30 PM EDT	Special Weather Statement	MRX	Unicoi	45 min
Aug 15, 5:09 PM EDT	Areal Flood Advisory	MRX	Carter	2 hr
Aug 15, 5:24 PM EDT	Flash Flood Warning	MRX	Carter	3 hr
Aug 15, 6:12 PM EDT	Areal Flood Advisory	MRX	Carter, Unicoi, Washington	4 hr
Aug 14, 9:25 PM EDT	Special Weather Statement	MRX	Wise, City of Norton	65 min
Aug 14, 10:27 PM EDT	Special Weather Statement	MRX	Russell, Wise, City of Norton	63 min
Aug 14, 10:49 PM EDT	Areal Flood Advisory	MRX	Russell, Scott, Wise, City of Norton	116 min
Aug 14, 11:17 PM EDT	Special Weather Statement	MRX	Scott, Washington, City of Bristol	58 min
Aug 14, 11:44 PM EDT	Flash Flood Warning	MRX	Russell, Scott, Washington	3 hr

Nearby

Special Weather Statements in Virginia, 2022 Every special weather statement 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.