Alert archive / North Carolina / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 21, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Apr 17, 2013, 4:30 PM EDT for Cherokee County, North Carolina. It was in force for 60 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 17, 2013, 4:30 PM EDT (20:30 UTC)
- Expired
- Apr 17, 2013, 5:30 PM EDT
- In force
- 60 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
County Cherokee County, NC
The radar
The Knoxville radar (KMRX), 130 km from the middle of the area, began a volume at 20:33 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 17, 1:39 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 200 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.
- Mixed-layer CAPE
- 25 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 17, 3:30 PM EDT, 1 hour earlier.
Area forecast discussion, Apr 17, 3:30 PM EDT, 1 hour before
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</html>Hazardous weather outlook, Apr 17, 3:33 PM EDT, 57 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 333 PM EDT WED APR 17 2013 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-181945- 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- 333 PM EDT WED APR 17 2013 /233 PM CDT WED APR 17 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...THIS AFTERNOON AND TONIGHT... SHOWERS AND THUNDERSTORMS WILL LINGER INTO THE EARLY EVENING OVER SOUTHERN AREAS...AND A FEW OF THESE STORMS MAY BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS THE PRIMARY THREATS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... A COLD FRONT WILL BRING A LINE OF THUNDERSTORMS ACROSS THE AREA LATE THURSDAY NIGHT THROUGH FRIDAY MORNING. STRONG SOUTH TO SOUTHEAST WINDS WILL INCREASE LATE THURSDAY NIGHT INTO FRIDAY AHEAD OF THE THUNDERSTORMS ESPECIALLY AT THE HIGHER ELEVATIONS AND CONTINUE FRIDAY. THERE IS ALSO A POTENTIAL FOR A FEW SEVERE STORMS FRIDAY MORNING INTO EARLY AFTERNOON...WITH DAMAGING WIND GUSTS BEING THE MAIN THREAT AS HIGH WINDS ALOFT ARE TRANSPORTED DOWN TO THE SURFACE. OTHERWISE...NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS UNLIKELY AT THIS TIME.
In the hours before
Special weather statement, Apr 17, 11:58 AM EDT, 4 hours 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1158 AM EDT WED APR 17 2013 TNZ012-171645- SCOTT TN- 1158 AM EDT WED APR 17 2013 ...SIGNIFICANT WEATHER ADVISORY FOR SCOTT COUNTY UNTIL 1245 PM EDT... AT 1153 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9 MILES WEST OF ONEIDA...MOVING EAST AT 15 MPH. SMALL HAIL AND WIND GUSTS IN EXCESS OF 40 MPH ARE POSSIBLE WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...ONEIDA... HUNTSVILLE...ELGIN...WINFIELD...SLICK ROCK AND KETCHEN. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES PRIMARY KILLERS ASSOCIATED WITH THUNDERSTORMS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
Special weather statement, Apr 17, 12:36 PM EDT, 3 hours 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 1236 PM EDT WED APR 17 2013 TNZ035-171715- MORGAN TN- 1236 PM EDT WED APR 17 2013 ...SIGNIFICANT WEATHER ADVISORY FOR MORGAN COUNTY UNTIL 115 PM... AT 1231 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A CLUSTER OF STRONG THUNDERSTORMS ALONG THE MORGAN AND FENTRESS COUNTY LINE...WHICH WERE MOVING SOUTHEAST AT 15 MPH. SMALL HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES PRIMARY KILLERS ASSOCIATED WITH THUNDERSTORMS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. DMG
Local storm report, Apr 17, 1:54 PM EDT, 2 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
154 PM EDT WED APR 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM HAIL 5 S DEERLODGE 36.13N 84.76W
04/17/2013 E1.75 INCH MORGAN TN EMERGENCY MNGR
GOLFBALL SIZE HAIL AND ROOF DAMAGE REPORTED.
&&
DMGLocal storm report, Apr 17, 2:45 PM EDT, 1 hour 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
245 PM EDT WED APR 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM HAIL 10 W MELVINE 35.73N 85.24W
04/17/2013 E1.25 INCH BLEDSOE TN COCORAHS
HALF DOLLAR SIZE HAIL REPORTED...ALONG WITH SHREDDED
LEAVES AND DAMAGED SHINGLES.
&&
DMGThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 1:11 PM EDT | Areal Flood Advisory | MRX | Morgan | 3 hr |
| Apr 17, 1:20 PM EDT | Severe Thunderstorm Warning | MRX | Morgan | 55 min |
| Apr 17, 1:37 PM EDT | Flash Flood Warning | MRX | Morgan | 3 hr |
| Apr 17, 1:58 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe | 62 min |
| Apr 17, 2:21 PM EDT | Areal Flood Advisory | MRX | Bledsoe | 3 hr |
| Apr 17, 2:29 PM EDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 61 min |
| Apr 17, 2:52 PM EDT | Flash Flood Warning | MRX | Bledsoe | 3 hr |
| Apr 17, 3:25 PM EDT | Severe Thunderstorm Warning | MRX | Bledsoe | 65 min |
| Apr 17, 3:44 PM EDT | Areal Flood Advisory | MRX | McMinn, Meigs | 3 hr |
| Apr 17, 3:49 PM EDT | Areal Flood Advisory | MRX | McMinn, Meigs | 3 hr |
| Apr 17, 4:26 PM EDT | Severe Thunderstorm Warning | MRX | Marion, Sequatchie | 64 min |
| Apr 17, 4:55 PM EDT | Areal Flood Advisory | MRX | Marion, Sequatchie | 3 hr |
| Apr 17, 5:34 PM EDT | Areal Flood Advisory | MRX | Bradley, Hamilton | 3 hr |
| Apr 17, 7:04 PM EDT | Areal Flood Advisory | MRX | Marion | 3 hr |
| Apr 17, 10:08 AM EDT | Areal Flood Advisory | MRX | Lee, Scott | 3 hr |
| Apr 17, 11:43 AM EDT | Areal Flood Advisory | MRX | Wise, City of Norton | 2 hr |
Nearby
Severe Thunderstorm Warnings in North Carolina, 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.