Alert archive / Tennessee / Flash Flood Warnings in 1998
Flash Flood Warning 97, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Jun 10, 1998, 1:46 PM CDT for Cumberland County, Tennessee. It was in force for 3 hr. 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, 1998, 1:46 PM CDT (18:46 UTC)
- Expired
- Jun 10, 1998, 4:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Cumberland County, TN
The radar
The Nashville radar (KOHX), 144 km from the middle of the area, began a volume at 18:49 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 12:00Z, 6.8 hours before the alert went out and 145 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
- 3323 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 782 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 8.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMRX 101846 FFWMRX TNC035-102145- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 246 PM EDT (146 PM CDT) WED JUN 10 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * FLASH FLOOD WARNING FOR... CUMBERLAND COUNTY IN EASTERN TENNESSEE * UNTIL 445 PM CDT (545 PM EDT) * AT 140 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LARGE AREA OF RAINFALL LOCATED OVER SOUTHERN CUMBERLAND COUNTY... MOVING SOUTH AT 15 MPH.. * RAINFALL AT THE RATE OF 1/2 INCH PER HOUR WILL CAUSE THE FLOODING TO COUNTINUE ACROSS SOUTHERN CUMBERLAND COUNTY THROUGH 450 PM CDT (550 PM EDT). EMA OFFICIALS REPORT MOST OF THE ROADS IN SOUTHERN CUMBERLAND COUNTY CLOSED WITH SEVERAL EVACUATIONS. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Jun 10, 1:13 PM CDT, 33 minutes earlier.
Area forecast discussion, Jun 10, 1:13 PM CDT, 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 213 PM EDT WED JUN 10 1998 ...MAIN CONCERNS FFW POTENTIAL..SVR POTENTIAL..PRECIP IN LATER PERIODS..RECOMMEND FFW FOR ALL AREAS THIS EVENING AND OVERNIGHT... ...CORRECTED FFW PERIOD AS TSRA ALREADY FIRING IN KY... ..THANKS MEM FOR COORD. CALL... HAVE GONE W/ THE ETA SOLUTION AS IT HAD THE BEST HANDLE ON THIS AFTNS MCS OVER SW KY..N AND SE TN. PRECIP AMNTS ARND 3 IN. IN AN HOUR PRODUCING NUMEROUS REPORTS OF FLOODING ACROSS THE CWA. CAPES ARND 4000 AND LIS ARND -10...K INDICES 45-50..AND PWS 1.5-2.0 INCHES. HEAVY RAIN A DEFINITE POTENTIAL THIS EVENING. RIDGE SFC AND ALOFT IS WEAK AND ALLOWING PRECIP TO MOVE SE ACRS CWA. THICKNESS PATTERNS STAY NW THROUGH F36 HOURS SO ANYTHING THAT DEVELOPS IN OK..KS..MO..IA..KY WILL MOVE INTO THE AREA AND SOME COULD PRODUCE HEAVY RAIN AND SEVERE WEATHER. UPPER LEVEL DIVERGENCE ONCE AGAIN NOTICED ACROSS W TN AND MOST OF MO..TOWARDS 12Z THU MORNING. ATMOSPHERE REMAINS UNSTABLE THROUGH F48...SURFACE WARM FRONT REMAINS IN THE AREA FOR THE NEXT 24 HOURS...WITH LINGERING OUTFLOW BOUNDARIES...POPS WARRENTED THROUGH FORECAST PERIOD. WITH HIGH PWS STAYING IN THE AREA...HEAVY RAIN POSSIBLE MOST AREAS THROUGH THE EVENING UPDATE..WOULD LIKE TO GO WITH A FFW FOR THIS EVENING ALL AREAS..AS THE PRECIP WILL MOVE OUT OF THE AREA WITH AN AREA OF SUBSIDENCE BEHIND IT...THEN FIRE UP AGAIN AROUND 3 AM. AFTER THESE SHOWERS/THUNDERSTORMS MOVE THROUGH THE AREA...SHOULD SEE A BREAK AND HAVE REDEVELOPMENT AFTER MIDNIGHT. RECOMMEND... FOR CRW...MEM...RDU (ALL AREAS)...GO A CAT COOLER ON TEMPS IN MTNS. ..FLASH FLOOD WATCH THIS EVENING.. THIS EVENING...SHOWERS AND THUNDERSTORMS. HEAVY RAIN POSSIBLE. SOME MAY BE SEVERE. .TONIGHT...CLOUDY WITH A 40 PERCENT CHANCE FOR SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. LOW IN THE MID 60S. LIGHT AND VARIABLE WIND. .THURSDAY...CONTINUED CLOUDY AND MUGGY WITH A GOOD CHANCE FOR THUNDERSOTRMS. HIGH AROUND 80. SOUTHWEST WIND 10 TO 15 MPH. CHANCE FOR RAIN 50 PERCENT. .THURSDAY NIGHT...CLOUDY WITH A CHANCE OF THUNDERSTORMS. LOW IN THE MID 60S. CHANCE FOR RAIN 40 PERCENT. .FRIDAY...BECOMING PARTLY CLOUDY WITH A CHANCE FOR THUNDERSTORMS. HIGH IN THE LOWER 80S. CHANCE FOR RAIN 30 PERCENT. THANKS...PDK
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 1:43 AM CDT | Severe Thunderstorm Warning | MRX | Campbell | 47 min |
| Jun 10, 2:44 AM CDT | Severe Thunderstorm Warning | MRX | Johnson | 36 min |
| Jun 10, 10:25 AM CDT | Severe Thunderstorm Warning | MRX | Cumberland | 60 min |
| Jun 10, 10:54 AM CDT | Severe Thunderstorm Warning | MRX | Rhea | 46 min |
| Jun 10, 11:02 AM CDT | Flash Flood Warning | MRX | Cumberland | 3 hr |
| Jun 10, 11:27 AM CDT | Severe Thunderstorm Warning | MRX | Cumberland | 63 min |
| Jun 10, 11:33 AM CDT | Severe Thunderstorm Warning | MRX | Hamilton | 62 min |
| Jun 10, 11:52 AM CDT | Severe Thunderstorm Warning | MRX | Roane | 48 min |
| Jun 10, 12:07 PM CDT | Severe Thunderstorm Warning | MRX | Bradley, Polk | 33 min |
| Jun 10, 12:11 PM CDT | Severe Thunderstorm Warning | MRX | Meigs | 34 min |
| Jun 10, 12:18 PM CDT | Severe Thunderstorm Warning | MRX | Monroe | 62 min |
| Jun 10, 12:24 PM CDT | Severe Thunderstorm Warning | MRX | Loudon, McMinn | 66 min |
| Jun 10, 12:24 PM CDT | Severe Thunderstorm Warning | MRX | Rhea | 66 min |
| Jun 10, 12:33 PM CDT | Flash Flood Warning | MRX | Morgan, Roane | 3 hr |
| Jun 10, 12:33 PM CDT | Flash Flood Warning | MRX | Meigs, Rhea | 3 hr |
| Jun 10, 12:36 PM CDT | Severe Thunderstorm Warning | MRX | Blount | 19 min |
| Jun 10, 12:38 PM CDT | Severe Thunderstorm Warning | MRX | Hamilton | 62 min |
| Jun 10, 12:40 PM CDT | Severe Thunderstorm Warning | MRX | Bradley | 65 min |
| Jun 10, 1:31 PM CDT | Tornado Warning | MRX | Bradley | 64 min |
| Jun 10, 1:34 PM CDT | Severe Thunderstorm Warning | MRX | Hamilton | 61 min |
| Jun 10, 1:34 PM CDT | Severe Thunderstorm Warning | MRX | Polk | 61 min |
Nearby
Flash Flood Warnings in Tennessee, 1998Every flash flood warning in 1998
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.