Alert archive / Tennessee / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 128, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 10, 2009, 9:20 PM EDT for Monroe County, Tennessee. It was in force for 25 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
- Jun 10, 2009, 9:20 PM EDT (01:20 UTC)
- Expired
- Jun 10, 2009, 9:45 PM EDT
- In force
- 25 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
County Monroe County, TN
The radar
The Knoxville radar (KMRX), 111 km from the middle of the area, began a volume at 01:21 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
Nashville Metro, TN (KBNA), launched 00:00Z, 1.3 hours before the alert went out and 225 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
- 2108 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1123 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
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 Jun 10, 8:15 PM EDT, 1 hour 5 minutes earlier.
Area forecast discussion, Jun 10, 8:15 PM EDT, 1 hour 5 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 815 PM EDT WED JUN 10 2009 .AVIATION...PATHCES OF RAIN SHOWERS WITH EMBEDDED THUNDERSTORMS IN CENTRAL TO NORTHEAST TENNESSEE, ALL MOVING FAIRLY RAPIDLY SOUTHEAST. SHOULD BE OUT OF AREA BY ABOUT 03Z. CLOUDS WILL BE PATCHY AFTER THAT WITH THICKEST COVERAGE IN THE NORTHEAST NEAR TRI. THIS WILL INHIBIT FOG DEVLOPMENT TO SOME DEGREE. TYS MAY GET A LITTLE BETTER CHANCE FOR FOG, BUT ANOTHER ROUND OF CLOUDS IS MOVING TOWARD AREA FROM BLOWOFF FROM CENTRAL U.S. STORMS. THURSDAY LOOKS TO BE MORE ACTIVE AS A FRONT APPROACHES FROM NORTHWEST AND SOME SUN KICKS IN BEFORE. BIGGEST THREATS WILL BE HEAVY RAIN AND WIND. EXPECT VARIABLE CIGS AND VSBYS OVERNIGHT WITH BEST CONDITIONS AT CHA. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && BB
Hazardous weather outlook, Jun 10, 4:14 AM EDT, 17 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 414 AM EDT WED JUN 10 2009 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-110815- 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- 414 AM EDT WED JUN 10 2009 /314 AM CDT WED JUN 10 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS WILL DEVELOP...MAINLY THIS AFTERNOON AND LINGER THROUGHOUT THE EVENING AND OVERNIGHT. A FEW STRONG TO SEVERE STORMS WILL BE POSSIBLE...ESPECIALLY THIS AFTERNOON AND EVENING. THE MAIN THREATS WILL BE DAMAGING WINDS OF 50 MPH OR MORE AND HAIL OF PENNY SIZE OR LARGER. BRIEF LOCALLY HEAVY RAINS COULD OCCUR WITH THE STRONGEST STORMS...WITH FREQUENT DEADLY LIGHTNING STRIKES IN AND NEAR ALL STORMS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A WEAK COLD FRONT MOVING SLOWLY SOUTH INTO THE REGION IS EXPECTED TO INCREASE THE COVERAGE OF THUNDERSTORMS THURSDAY AND THURSDAY NIGHT. SCATTERED STRONG TO SEVERE STORMS WILL BE POSSIBLE...WITH THE MAIN THREATS DAMAGING DOWN BURSTS WINDS OF 50 MPH OR HIGHER... AND LARGE HAIL. OTHERWISE...ISOLATED STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE JUST ABOUT EACH AFTERNOON AND EVENING...FROM FRIDAY INTO EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED...MAINLY TODAY AND THURSDAY. TG
In the hours before
Special weather statement, Jun 10, 7:34 PM EDT, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 734 PM EDT WED JUN 10 2009 TNZ012-013-035-036-067-110015- ANDERSON-CAMPBELL-MORGAN-ROANE-SCOTT- 734 PM EDT WED JUN 10 2009 ...A STRONG THUNDERSTORM WILL BE AFFECTING ANDERSON...EXTREME SOUTHWESTERN CAMPBELL...EASTERN MORGAN...NORTHERN ROANE AND EXTREME SOUTHERN SCOTT COUNTIES... AT 729 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12 MILES NORTH OF OLIVER SPRINGS...MOVING SOUTHEAST AT 20 MPH. LOCATIONS IN THE PATH OF THE STORM INCLUDE...OLIVER SPRINGS AND CLINTON. SMALL HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. SEEK SHELTER DURING THE HEIGHT OF THE STORM. GM
Special weather statement, Jun 10, 7:44 PM EDT, 1 hour 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 744 PM EDT WED JUN 10 2009 TNZ069-071-073-074-110030- KNOX-NORTH SEVIER-NW BLOUNT-SEVIER SMOKY MOUNTAINS- 744 PM EDT WED JUN 10 2009 ...A STRONG THUNDERSTORM WILL BE AFFECTING BLOUNT...EASTERN KNOX AND SEVIER COUNTIES... AT 738 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11 MILES EAST OF KNOXVILLE...MOVING SOUTHEAST AT 20 MPH. LOCATIONS IN THE PATH OF THE STORM INCLUDE... KNOXVILLE...SEVIERVILLE...PIGEON FORGE... AND GATLINBURG. SMALL HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. WEAK TREES CAN BE KNOCKED DOWN BY GUSTY OUTFLOW WINDS FROM STRONG STORMS. SEEK SHELTER DURING THE HEIGHT OF THE STORM. GM
Local storm report, Jun 10, 8:27 PM EDT, 53 minutes before
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</html>Local storm report, Jun 10, 8:53 PM EDT, 27 minutes before
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</html>Local storm report, Jun 10, 9:05 PM EDT, 15 minutes before
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</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 8:07 PM EDT | Severe Thunderstorm Warning | MRX | Loudon, Morgan, Roane | 38 min |
| Jun 10, 8:19 PM EDT | Tornado Warning | MRX | Loudon, Morgan, Roane | 26 min |
| Jun 10, 8:42 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Loudon, Monroe | 48 min |
| Jun 10, 8:48 PM EDT | Severe Thunderstorm Warning | MRX | Loudon, Roane | 27 min |
| Jun 11, 11:56 AM EDT | Severe Thunderstorm Warning | MRX | Bledsoe, Sequatchie | 64 min |
| Jun 11, 12:27 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton, Marion | 48 min |
| Jun 11, 12:40 PM EDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 50 min |
| Jun 11, 12:44 PM EDT | Severe Thunderstorm Warning | MRX | Morgan, Roane | 61 min |
| Jun 11, 12:50 PM EDT | Severe Thunderstorm Warning | MRX | Scott | 55 min |
| Jun 11, 12:54 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, McMinn, Monroe, Polk | 51 min |
| Jun 11, 1:12 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Campbell | 63 min |
| Jun 11, 1:18 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Loudon, McMinn, Meigs, Monroe | 57 min |
| Jun 11, 1:28 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Knox | 62 min |
| Jun 11, 1:44 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Monroe, Polk | 46 min |
| Jun 11, 1:52 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne, Grainger, Union | 53 min |
| Jun 11, 2:11 PM EDT | Severe Thunderstorm Warning | MRX | Hamblen, Jefferson, Sevier | 64 min |
| Jun 11, 2:14 PM EDT | Severe Thunderstorm Warning | MRX | Blount, Sevier | 61 min |
| Jun 11, 2:45 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne, Grainger, Hancock | 30 min |
| Jun 11, 2:57 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Greene, Hawkins | 63 min |
| Jun 11, 3:04 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Grainger, Greene, Hamblen, Hancock, Hawkins and 2 more | 26 min |
| Jun 11, 3:31 PM EDT | Severe Thunderstorm Warning | MRX | Unicoi | 49 min |
| Jun 11, 3:36 PM EDT | Severe Thunderstorm Warning | MRX | Sullivan, Washington | 54 min |
| Jun 11, 4:11 PM EDT | Severe Thunderstorm Warning | MRX | Carter | 34 min |
| Jun 11, 4:29 PM EDT | Severe Thunderstorm Warning | MRX | Johnson, Sullivan | 46 min |
| Jun 11, 3:50 PM EDT | Severe Thunderstorm Warning | MRX | Scott | 55 min |
| Jun 11, 4:21 PM EDT | Severe Thunderstorm Warning | MRX | Wise, City of Norton | 39 min |
| Jun 11, 2:38 PM EDT | Severe Thunderstorm Warning | MRX | Cherokee, Clay | 41 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2009Every severe thunderstorm warning in 2009
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.