Alert archive / Virginia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 20, NWS Morristown, TN

April 19, 20157 counties in Virginia

NWS Morristown, TN issued this severe thunderstorm warning at Apr 19, 2015, 10:30 PM EDT for 7 counties in Virginia. It was in force for 45 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: Apr 19, 2015, 10:30 PM EDT (02:30 UTC)
Expired: Apr 19, 2015, 11:15 PM EDT
In force: 45 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties City of Bristol, VA, City of Norton, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA

The radar

The Knoxville radar (KMRX), 109 km from the middle of the area, began a volume at 02:32 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.

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 Apr 19, 9:26 PM EDT, 1 hour 4 minutes earlier.

Area forecast discussion, Apr 19, 9:26 PM EDT, 1 hour 4 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MORRISTOWN TN
926 PM EDT SUN APR 19 2015

.DISCUSSION...
A LINE OF STRONG TO SEVERE STORMS CONTINUES TO TRACK ACROSS THE
CENTRAL VALLEY LATE THIS EVENING...WITH DAMAGING WINDS REMAINING
THE PREDOMINANT THREAT WITHIN THE BOWING SEGMENTS. THIS LINE WILL
QUICKLY TRACK NORTH AND EAST THROUGH THE REGION WITHIN THE NEXT
COUPLE OF HOURS...AND SHOULD GENERALLY WEAKEN AS IT TRACKS INTO A
MORE STABLE ENVIRONMENT ACROSS FAR NE TN AND SW VA. SOME CLEARING
TO PARTIAL CLEARING WILL BRIEFLY OCCUR IN ITS WAKE BETWEEN
03-06Z...BEFORE ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS WILL
MOVE TOWARD THE CUMBERLAND PLATEAU AHEAD OF A COLD FRONT LATE
TONIGHT BETWEEN 06-09Z...AND MOVE ACROSS THE REGION DURING A 09-15Z
TIMEFRAME. THERE WILL BE ENOUGH ELEVATED INSTABLITY TO SUPPORT SOME
ORGANIZED LINES WHICH WILL BE CAPABLE OF LOCALIZED CONVECTIVE
DAMAGING WIND GUSTS WITHIN THE STRONGER BOWING SEGMENTS...AS WELL
AS LOCALLY HEAVY RAINFALL WITHIN THE MOIST BOUNDARY LAYER.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             61  72  48  70 /  60  40  20  10
KNOXVILLE MCGHEE TYSON AIRPORT, TN  60  70  46  66 /  70  60  20  10
OAK RIDGE, TN                       60  69  46  67 /  70  60  20  10
TRI CITIES AIRPORT, TN              57  71  44  63 /  70  60  40  10

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.
&&

AMP

Hazardous weather outlook, Apr 19, 4:04 PM EDT, 6 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MORRISTOWN TN
404 PM EDT SUN APR 19 2015

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-202015-
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-
404 PM EDT SUN APR 19 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

...LOCALLY HEAVY RAINFALL...AND A RISK OF STRONG TO SEVERE
THUNDERSTORMS POSSIBLE THIS EVENING AND OVERNIGHT...

PERIODS OF MODERATE TO HEAVY RAINS ARE ANTICIPATED ALONG AND BEHIND A
WARM FRONT THAT IS MOVING NORTHEAST THROUGH THE REGION. DUE TO THE
VERY MOIST ENVIRONMENT IN PLACE...LOCALLY HEAVY RAINFALL IS
POSSIBLE. THE HEAVY RAINS MAY CAUSE LOCALIZED FLASH FLOODING OF
AREA ROADWAYS...SMALL STREAMS...AND PONDING OF WATER ACROSS LOW-
LYING AREAS.

THE THREAT OF THUNDERSTORMS WILL INCREASE THIS EVENING AND
OVERNIGHT AS A WEAK COLD FRONT TRACKS TOWARD THE REGION. LOCALLY
STRONG TO SEVERE STORMS ARE POSSIBLE...WITH THE MAIN THREATS EXPECTED
TO BE ISOLATED DAMAGING DOWNBURSTS WINDS AND HAIL UP TO QUARTER
SIZE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THE THREAT FOR SHOWERS AND THUNDERSTORMS CONTINUES INTO MONDAY.
THE CHANCE OF SEVERE STORMS REMAINS LOW...BUT STRONG STORMS AND AN
ISOLATED SEVERE ARE POSSIBLE MONDAY AFTERNOON AND EVENING...WITH
THE HIGHEST CHANCES BEING IN FAR NORTHEAST TENNESSEE INTO
SOUTHWEST VIRGINIA. DAMAGING WINDS...LOCALLY HEAVY RAIN...AND
QUARTER SIZED HAIL COULD OCCUR WITH THE STRONGEST STORMS.

.SPOTTER INFORMATION STATEMENT...

LOCALIZED SPOTTER ACTIVATION MAY BE REQUESTED FOR SUNDAY AND MONDAY
AFTERNOON AND EVENING.

In the hours before

Local storm report, Apr 19, 9:58 PM EDT, 32 minutes before

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Local storm report, Apr 19, 9:59 PM EDT, 31 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Apr 19, 10:00 PM EDT, 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1000 PM EDT SUN APR 19 2015

VAZ001-002-005-200245-
SCOTT VA-WISE VA-LEE VA-
1000 PM EDT SUN APR 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN WISE...WESTERN SCOTT AND
LEE COUNTIES AND THE CITY OF NORTON UNTIL 1045 PM EDT...

AT 1000 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTHWEST OF
JONESVILLE TO NEAR SNEEDVILLE...AND MOVING NORTHEAST AT 45 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NORTON...JONESVILLE...BIG STONE GAP...PENNINGTON GAP...APPALACHIA...
POUND...ST. CHARLES...DUFFIELD...CLINCHPORT...DRYDEN...
PATTONSVILLE...PARDEE...ROSE HILL AND JASPER.

LAT...LON 3660 8263 3660 8330 3671 8332 3674 8314
      3678 8313 3685 8307 3685 8301 3689 8288
      3693 8286 3698 8287 3701 8283 3703 8275
      3705 8272 3712 8272 3717 8261
TIME...MOT...LOC 0200Z 239DEG 39KT 3679 8326 3660 8322

17

Local storm report, Apr 19, 10:03 PM EDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1003 PM EDT SUN APR 19 2015

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

0915 PM     TSTM WND DMG     MAYNARDVILLE            36.25N 83.81W
04/19/2015                   UNION              TN   911 CALL CENTER

            A FEW TREES AND POWER LINES DOWN ACROSS UNION COUNTY

&&

AMP

Special weather statement, Apr 19, 10:11 PM EDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1011 PM EDT SUN APR 19 2015

TNZ016-040>045-200300-
COCKE SMOKY MOUNTAINS TN-WASHINGTON TN-NORTHWEST COCKE TN-HAWKINS TN-
SOUTHEAST GREENE TN-UNICOI TN-NORTHWEST GREENE TN-
1011 PM EDT SUN APR 19 2015

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL COCKE...SOUTHERN
WASHINGTON...SOUTHWESTERN HAWKINS...UNICOI...GREENE AND SOUTHWESTERN
CARTER COUNTIES UNTIL 1100 PM EDT...

AT 1010 PM EDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES WEST OF GREENEVILLE
TO 25 MILES SOUTHEAST OF PARROTTSVILLE...AND MOVING EAST AT 45 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
GREENEVILLE...ERWIN...TUSCULUM...BANNER HILL...UNICOI...MOSHEIM...
LIBERTY...EMBREEVILLE...CEDAR CREEK...CAMP CREEK...CHUCKY...LIMESTONE
COVE...ROUND MOUNTAIN...CANEY BRANCH...LIMESTONE...ROCKY FORK AND
MOHAWK.

LAT...LON 3613 8225 3614 8229 3611 8237 3601 8246
      3595 8256 3597 8261 3601 8261 3603 8259
      3607 8264 3600 8278 3593 8281 3595 8285
      3595 8290 3593 8292 3588 8290 3580 8296
      3625 8307 3622 8226 3615 8222
TIME...MOT...LOC 0210Z 255DEG 39KT 3620 8298 3569 8286

17

Local storm report, Apr 19, 10:24 PM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1024 PM EDT SUN APR 19 2015

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

1011 PM     TSTM WND DMG     ROGERSVILLE             36.41N 83.01W
04/19/2015                   HAWKINS            TN   911 CALL CENTER

            A FEW TREES AND POWER LINES DOWN IN ROGERSVILLE.

&&

AMP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 8:00 PM EDT	Special Weather Statement	MRX	Bradley, McMinn, Meigs, Polk, Rhea, Roane	45 min
Apr 19, 8:23 PM EDT	Severe Thunderstorm Warning	MRX	Loudon, McMinn, Monroe	37 min
Apr 19, 8:29 PM EDT	Special Weather Statement	MRX	Anderson, Knox, Loudon, Roane	46 min
Apr 19, 8:50 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Blount, Knox, Sevier	25 min
Apr 19, 9:03 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell, Claiborne, Knox, Union	27 min
Apr 19, 9:15 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Grainger, Hamblen, Jefferson, Knox, Sevier and 1 more	30 min
Apr 19, 9:29 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne, Grainger, Hamblen, Hancock, Hawkins, Union	31 min
Apr 19, 9:41 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Grainger, Greene, Hamblen, Hawkins, Jefferson and 1 more	34 min
Apr 19, 9:56 PM EDT	Severe Thunderstorm Warning	MRX	Greene, Hamblen, Hancock, Hawkins	34 min
Apr 19, 10:11 PM EDT	Special Weather Statement	MRX	Greene, Unicoi	49 min
Apr 19, 10:21 PM EDT	Severe Thunderstorm Warning	MRX	Greene, Hancock, Hawkins, Sullivan, Unicoi, Washington	24 min
Apr 19, 10:44 PM EDT	Special Weather Statement	MRX	Carter, Johnson, Sullivan, Unicoi, Washington	46 min
Apr 19, 11:11 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Johnson, Sullivan	49 min
Apr 20, 3:44 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Hamilton, Marion, Sequatchie	46 min
Apr 20, 4:29 AM EDT	Special Weather Statement	MRX	Bledsoe, Bradley, Hamilton, Meigs, Rhea	46 min
Apr 20, 5:08 AM EDT	Special Weather Statement	MRX	Anderson, Knox, Roane	67 min
Apr 20, 5:11 AM EDT	Special Weather Statement	MRX	Campbell	49 min
Apr 20, 5:15 AM EDT	Special Weather Statement	MRX	Bradley, McMinn, Meigs, Monroe, Polk	45 min
Apr 20, 5:50 AM EDT	Special Weather Statement	MRX	Blount, Monroe, Sevier	40 min
Apr 20, 5:58 AM EDT	Special Weather Statement	MRX	Grainger, Hamblen	47 min
Apr 20, 7:22 AM EDT	River Flood Warning	MRX	Cocke	9 hr
Apr 19, 10:00 PM EDT	Special Weather Statement	MRX	Lee, Wise, City of Norton	45 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2015 Every severe thunderstorm warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.