Alert archive / Tennessee / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 810
The Storm Prediction Center issued this severe thunderstorm watch at Dec 16, 2000, 2:00 PM EST for 48 counties in Tennessee. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 16, 2000, 2:00 PM EST (19:00 UTC)
- Expired
- Dec 16, 2000, 7:00 PM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 48 counties
Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Cannon County, TN, Claiborne County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grainger County, TN, Grundy County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jackson County, TN, Jefferson County, TN, Knox County, TN, Lincoln County, TN, Loudon County, TN, Marion County, TN, Marshall County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Polk County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Rutherford County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Smith County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, White County, TN
The radar
The Northeast Alabama radar (KHTX), 98 km from the middle of the area, began a volume at 19:04 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.
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 2:05 PM EST | Flash Flood Warning | OHX | Bedford, Lincoln, Marshall | 2 hr |
| Dec 16, 2:30 PM EST | Flash Flood Warning | OHX | Clay, Jackson, Overton, Smith | 105 min |
| Dec 16, 3:00 PM EST | Flash Flood Warning | OHX | Cannon, DeKalb | 105 min |
| Dec 16, 3:12 PM EST | Flash Flood Warning | OHX | Coffee, Franklin, Grundy, Warren | 93 min |
| Dec 16, 4:00 PM EST | Flash Flood Warning | OHX | Putnam, White | 2 hr |
| Dec 16, 4:15 PM EST | Flash Flood Warning | OHX | Bedford, Davidson, Giles, Lawrence, Lincoln, Marshall and 6 more | 105 min |
| Dec 16, 4:35 PM EST | Flash Flood Warning | OHX | Bedford, Coffee, Franklin, Moore, Warren | 85 min |
| Dec 16, 5:38 PM EST | Severe Thunderstorm Warning | OHX | Coffee, Franklin, Grundy | 37 min |
| Dec 16, 5:46 PM EST | Severe Thunderstorm Warning | MRX | Marion | 60 min |
| Dec 16, 5:55 PM EST | Flash Flood Warning | OHX | Cannon, Clay, Coffee, Cumberland, DeKalb, Fentress and 11 more | 3 hr |
| Dec 16, 6:15 PM EST | Severe Thunderstorm Warning | OHX | Cumberland | 45 min |
| Dec 16, 6:20 PM EST | Severe Thunderstorm Warning | OHX | Fentress | 40 min |
| Dec 16, 6:37 PM EST | Severe Thunderstorm Warning | MRX | Marion, Sequatchie | 60 min |
| Dec 16, 6:37 PM EST | Severe Thunderstorm Warning | MRX | Bledsoe | 60 min |
| Dec 16, 6:37 PM EST | Severe Thunderstorm Warning | MRX | Morgan | 30 min |
| Dec 16, 6:46 PM EST | Severe Thunderstorm Warning | MRX | Hamilton, Meigs, Rhea | 60 min |
| Dec 16, 6:54 PM EST | Severe Thunderstorm Warning | MRX | Campbell, Scott | 45 min |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 7.0 hours before the alert went out and 112 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 445 m²/s²
- 0-3 km storm-relative helicity
- 500 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
348 WWUS9 KMKC 161906 SEL0 SEL0 MKC WW 161858 TNZ000-170000- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 810 STORM PREDICTION CENTER NORMAN OK 158 PM EST SAT DEC 16 2000 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF MIDDLE AND EASTERN TENNESSEE EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 200 PM UNTIL 700 PM EST. HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 85 STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES WEST OF CHATTANOOGA TENNESSEE TO 55 MILES NORTH OF KNOXVILLE TENNESSEE. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 808...WW 809... DISCUSSION...SUPERCELL THREAT EXPECTED TO SPREAD NWD INTO PARTS OF ERN TN THIS AFTERNOON AS MODEST AIR MASS RECOVERY CONTINUES AHEAD OF EXISTING SQUALL LINE OVER NRN AL/MIDDLE TN. WHILE BOUNDARY LAYER AIR MASS SPREADING NWD FROM ERN GA IS RATHER COOL /AVERAGE SURFACE DEWPOINTS IN THE LOWER 50S/...SUBSTANTIAL LOW- TO MID-LEVEL SHEAR PRESENT TO SUPPORT A CONTINUED EMBEDDED SUPERCELL PRESENCE AND POSSIBLY AN ISOLATED TORNADO. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION VECTOR 22040. ...CORFIDI 363,0822 350,0842 350,0873 363,0853
Nearby
Severe Thunderstorm Watches in Tennessee, 2000Every severe thunderstorm watch in 2000
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.