Alert archive / Tennessee / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 186, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jul 8, 2008, 4:05 PM EDT for 4 counties in 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
- Jul 8, 2008, 4:05 PM EDT (20:05 UTC)
- Expired
- Jul 8, 2008, 4:30 PM EDT
- In force
- 25 min
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
Counties Carter County, TN, Johnson County, TN, Unicoi County, TN, Washington County, TN
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.1 hours before the alert went out and 210 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
- 2216 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 755 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
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 Jul 8, 2:46 PM EDT, 1 hour 19 minutes earlier.
Area forecast discussion, Jul 8, 2:46 PM EDT, 1 hour 19 minutes before
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Special weather statement, Jul 8, 1:26 PM EDT, 2 hours 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 126 PM EDT TUE JUL 8 2008 NCZ060-061-081830- CHEROKEE-CLAY- 126 PM EDT TUE JUL 8 2008 ...A STRONG THUNDERSTORM WILL BE AFFECTING CHEROKEE AND CLAY COUNTIES... AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8 MILES SOUTHWEST OF MURPHY...MOVING EAST AT 17 MPH. THIS STORM WILL BE NEAR... MURPHY BY 150 PM EDT. 5 MILES NORTH OF HAYESVILLE BY 225 PM EDT. 5 MILES SOUTH OF ANDREWS BY 230 PM EDT. DIME SIZE HAIL...AND WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES PRIMARY KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. DGS
Local storm report, Jul 8, 2:10 PM EDT, 1 hour 55 minutes before
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</html>Special weather statement, Jul 8, 2:16 PM EDT, 1 hour 49 minutes before
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</html>Special weather statement, Jul 8, 4:03 PM EDT, 2 minutes before
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Please try again in a few minutes.
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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 |
|---|---|---|---|---|
| Jul 8, 1:24 PM EDT | Severe Thunderstorm Warning | MRX | Morgan, Roane | 23 min |
| Jul 8, 3:06 PM EDT | Severe Thunderstorm Warning | MRX | Greene | 39 min |
| Jul 8, 4:12 PM EDT | Areal Flood Advisory | MRX | Carter, Washington | 3 hr |
| Jul 8, 5:50 PM EDT | Areal Flood Advisory | MRX | Polk | 3 hr |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2008Every severe thunderstorm warning in 2008
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.