Alert archive / Virginia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 53, NWS Morristown, TN

May 22, 2013Washington County, Virginia

NWS Morristown, TN issued this severe thunderstorm warning at May 22, 2013, 3:13 PM EDT for Washington County, Virginia. It was in force for 62 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
May 22, 2013, 3:13 PM EDT (19:13 UTC)
Expired
May 22, 2013, 4:15 PM EDT
In force
62 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon

County Washington County, VA

The radar

The Knoxville radar (KMRX), 143 km from the middle of the area, began a volume at 19:14 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, 7.2 hours before the alert went out and 198 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 2013-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 224 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 2013-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -12 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
224 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
644 m above ground
0-6 km bulk shear
2 kt
0-1 km storm-relative helicity
-12 m²/s²
0-3 km storm-relative helicity
42 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 May 22, 3:06 PM EDT, 7 minutes earlier.

Area forecast discussion, May 22, 3:06 PM EDT, 7 minutes before
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Hazardous weather outlook, May 22, 10:10 AM EDT, 5 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MORRISTOWN TN
1010 AM EDT WED MAY 22 2013

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-231000-
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-NW 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-RUSSELL-WASHINGTON-
1010 AM EDT (910 AM CDT) WED MAY 22 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST
VIRGINIA...AND EXTREME SOUTHWEST NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT...

AN UPPER-LEVEL DISTURBANCE WILL GENERATE SCATTERED SHOWERS AND
THUNDERSTORMS OVER THE SOUTHERN APPALACHIAN REGION TODAY AND
TONIGHT. SOME STORMS MAY BECOME SEVERE THIS AFTERNOON AND EVENING...
BRINGING THE POSSIBILITY OF DAMAGING WINDS...LARGE HAIL...AND
LOCALLY HEAVY RAINFALL. IN ADDITION...AN ISOLATED TORNADO OR TWO
WILL BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

SCATTERED SHOWERS AND THUNDERSTORMS WILL REDEVELOP ACROSS THE REGION
ON THURSDAY AFTERNOON AND EVENING. SOME OF THESE STORMS MAY BECOME
STRONG...PRODUCING STRONG GUSTY WINDS AND SMALL HAIL.

OTHERWISE...NO HAZARDOUS WEATHER IS ANTICIPATED THIS WEEKEND INTO
EARLY NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

DMG

In the hours before

Local storm report, May 22, 11:55 AM EDT, 3 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MORRISTOWN TN
1155 AM EDT WED MAY 22 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     TSTM WND DMG     BIG SOUTH FORK NATIONAL 36.52N 84.67W
05/21/2013                   SCOTT              TN   911 CALL CENTER

            FEW TREES DOWN

0435 PM     TSTM WND DMG     6 SW HUNTSVILLE         36.35N 84.56W
05/21/2013                   SCOTT              TN   911 CALL CENTER

            FEW TREES DOWN IN ROBBINS

0600 PM     TSTM WND DMG     HAPPY VALLEY            35.61N 83.96W
05/21/2013                   BLOUNT             TN   911 CALL CENTER

            TREES AND POWERLINES DOWNED IN HAPPY VALLEY. REPORTED BY
            DISPATCH.

0600 PM     TSTM WND DMG     GREENEVILLE             36.17N 82.82W
05/21/2013                   GREENE             TN   911 CALL CENTER

            TREES DOWN COUNTYWIDE

0630 PM     TSTM WND DMG     SEVIERVILLE             35.89N 83.58W
05/21/2013                   SEVIER             TN   DEPT OF HIGHWAYS

            FEW TREES DOWN ACROSS THE COUNTY.

0630 PM     TSTM WND DMG     MARYVILLE               35.75N 83.97W
05/21/2013                   BLOUNT             TN   911 CALL CENTER

            COUPLE TREES DOWN.

0630 PM     TSTM WND DMG     DANDRIDGE               36.02N 83.42W
05/21/2013                   JEFFERSON          TN   911 CALL CENTER

            MANY TREES DOWNED COUNTY-WIDE MAINLY NEAR DANDRIDGE.

0715 PM     TSTM WND DMG     MORRISTOWN              36.21N 83.30W
05/21/2013                   HAMBLEN            TN   911 CALL CENTER

            12 TREES DOWN ACROSS THE COUNTY.

0730 PM     TSTM WND DMG     JEFFERSON CITY          36.12N 83.49W
05/21/2013                   JEFFERSON          TN   NWS EMPLOYEE

            FEW TREES DOWN NEAR EAST DUMPLIN VALLEY RD.

0800 PM     FLASH FLOOD      3 SE SEVIERVILLE        35.86N 83.54W
05/21/2013                   SEVIER             TN   PUBLIC

            EARNEST MCMAHON RD AT PULLEN ROAD IS FLOODED.

0824 PM     TSTM WND DMG     GREENEVILLE             36.17N 82.82W
05/21/2013                   GREENE             TN   911 CALL CENTER

            TREES DOWN COUNTYWIDE

0825 PM     HAIL             BLUFF CITY              36.46N 82.27W
05/21/2013  E1.00 INCH       SULLIVAN           TN   TRAINED SPOTTER

            SPOTTER REPORTED QUARTER-SIZE HAIL IN BLUFF CITY.

0830 PM     FLASH FLOOD      3 ESE KODAK             35.96N 83.58W
05/21/2013                   SEVIER             TN   PUBLIC

            STRANDED CARS NEAR SOUTH END OF DOUGLAS LAKE ON BLACK OAK
            RIDGE ROAD.

0840 PM     HAIL             BLUFF CITY              36.46N 82.27W
05/21/2013  E1.00 INCH       SULLIVAN           TN   911 CALL CENTER

0845 PM     TSTM WND DMG     BLOUNTVILLE             36.53N 82.33W
05/21/2013                   SULLIVAN           TN   911 CALL CENTER

            TREES DOWN COUNTYWIDE

0845 PM     TSTM WND DMG     JONESBOROUGH            36.29N 82.48W
05/21/2013                   WASHINGTON         TN   911 CALL CENTER

            MANY TREES DOWNED COUNTY-WIDE

0850 PM     FLASH FLOOD      HAMPTON                 36.28N 82.17W
05/21/2013                   CARTER             TN   EMERGENCY MNGR

            ROADS WASHED OUT IN HAMPTON. REPORTED BY THE EMA.

0100 AM     FLASH FLOOD      DAMASCUS                36.63N 81.79W
05/22/2013                   WASHINGTON         VA   911 CALL CENTER

            RESCUE VEHICLE STARNDED ON RUSH CREEK RD.

&&
Local storm report, May 22, 2:59 PM EDT, 14 minutes before
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Local storm report, May 22, 3:02 PM EDT, 11 minutes before
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Local storm report, May 22, 3:09 PM EDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 8:01 PM EDTSevere Thunderstorm WarningMRXCarter, Sullivan, Unicoi, Washington59 min
May 21, 8:11 PM EDTAreal Flood AdvisoryMRXCarter3 hr
May 21, 8:38 PM EDTFlash Flood WarningMRXCarter, Unicoi, Washington4 hr
May 22, 2:39 PM EDTSevere Thunderstorm WarningMRXSullivan66 min
May 22, 2:44 PM EDTSevere Thunderstorm WarningMRXMeigs, Rhea, Roane46 min
May 22, 2:59 PM EDTSevere Thunderstorm WarningMRXGreene, Washington61 min
May 22, 3:30 PM EDTAreal Flood AdvisoryMRXCarter, Greene, Johnson, Sullivan, Unicoi, Washington3 hr
May 22, 3:54 PM EDTSevere Thunderstorm WarningMRXCocke51 min
May 22, 3:58 PM EDTSevere Thunderstorm WarningMRXGreene62 min
May 22, 4:32 PM EDTSevere Thunderstorm WarningMRXGreene, Hawkins, Sullivan, Washington43 min
May 22, 5:01 PM EDTSevere Thunderstorm WarningMRXBradley, Hamilton, Meigs, Rhea59 min
May 22, 5:17 PM EDTAreal Flood AdvisoryMRXSullivan3 hr
May 22, 6:39 PM EDTSevere Thunderstorm WarningMRXJohnson36 min
May 22, 6:55 PM EDTSevere Thunderstorm WarningMRXCocke, Jefferson, Sevier50 min
May 22, 7:14 PM EDTAreal Flood AdvisoryMRXJefferson, Sevier3 hr
May 21, 9:08 PM EDTSevere Thunderstorm WarningMRXWashington, City of Bristol37 min
May 21, 9:51 PM EDTAreal Flood AdvisoryMRXWashington3 hr
May 22, 12:26 AM EDTFlash Flood WarningMRXWashington109 min
May 22, 5:08 PM EDTSevere Thunderstorm WarningMRXRussell, Scott, Wise52 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2013Every severe thunderstorm warning in 2013

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.