Alert archive / Tennessee / Flash Flood Warnings in 1998
Flash Flood Warning 88, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Jun 5, 1998, 9:06 AM EDT for Sevier 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 5, 1998, 9:06 AM EDT (13:06 UTC)
- Expired
- Jun 5, 1998, 11:55 AM EDT
- In force
- 3 hr
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Sevier County, TN
The radar
The Knoxville radar (KMRX), 44 km from the middle of the area, began a volume at 13:09 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, 1.1 hours before the alert went out and 279 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
- 552 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- -146 m²/s²
- 0-3 km storm-relative helicity
- -71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMRX 051307 FFWMRX TNC155-051555- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 906 AM EDT FRI JUN 5 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * FLASH FLOOD WARNING FOR... SEVIER COUNTY IN EASTERN TENNESSEE * UNTIL 1155 AM EDT * AT 904 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT A LARGE AREA OF MODERATE TO HEAVY RAINFALL WAS LOCATED OVER SEVIER COUNTY... MOVING NORTHEAST AT 25 MPH. AT 9 AM...GATLINBURG FIRE DEPARTMENT REPORTED THAT AREA STREAMS WERE NEAR BANKFUL. THE ADDITIONAL MODERATE TO LOCALLY HEAVY RAINS WILL LIKELY PRODUCE AREA STREAM FLOODING. * EXCESSIVE RAINFALL AT THE RATE OF 2 INCHES PAST 3 HOURS WILL PRODUCE FLOODING ACROSS SEVIER COUNTY THROUGH 1155 AM EDT. MOVE TO HIGHER GROUND IF FLOOD WATERS THREATEN. REMEMBER...DO NOT CROSS WATER COVERED ROADWAYS. THE WATER DEPTH MAY BE TOO HIGH FOR SAFE PASSAGE. DH
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 5, 2:45 AM EDT, 6 hours 21 minutes earlier.
Area forecast discussion, Jun 5, 2:45 AM EDT, 6 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 245 AM EDT FRI JUN 5 1998 AND THE BEAT GOES ON....LOOKS LIKE ANOTHER DAY OF WIDESPREAD CONVECTION WITH ASSOCIATED HEAVY RAINFALL ACRS THE FA AS SFC BOUNDARY REMAINS IN PLACE ACRS TN AND TWO DECENT S/WVS SHIFT E. 1ST ROUND APPEARING ON RADARS TO THE WEST ACRS MID MS VLY REGION WHICH WL PROVIDE NUMEROUS SHRA/TSRA AT BEGINNING OF 1ST PD WHICH WL LAST INTO MID/LATE AM HOURS AND 2ND ROUND FOR THIS AFTERNOON AS NEXT WAVE MAKES ITS MOVE. WOULD EXPECT BEST CHC FOR HEAVIEST RAIN/SVR WX THREAT ACRS PLATEAU/CNTRL AND SRN VLY/SRN MTN ZONES WHERE BEST INSTABILITY/MSTR CONVERGENCE WL EXIST THRU EARLY EVE. KIND OF LIKE CATEGORICAL POPS PROVIDED BY FWC GUIDANCE FOR 1ST PD. FLASH FLOOD THREAT STILL POSSIBLE TODAY IN SRN ZONES. SYSTEM/FNT SHIFT E AND DROP SLOLY INTO SRN VLY/SRN MTN ZONES TONITE BUT WOULD KEEP LKLY POPS GOING AS AM NOT CONVINCED THAT FNT WL ACTUALLY MOV VERY FAR FM CURRENT POSITION AND ADDITIONAL VORT LOBES IDENTIFIED ON MODELS TO PASS ACRS FA TONITE. > LIKE SENARIO FM PREVIOUS PACKAGE FOR SAT ACRS FA BUT WOULD RAISE POPS TO 40% SRN VLY/SRN MTNS AS BELIEVE FNT WL NOT BE FAR TO THE SOUTH AS UPR LVL FLO BASICALLY PARALLELS FNT WITH YET ANOTHER S/WV EXPECTED IN AREA DURING THE DAY. FWC TEMPS NOT BAD 1ST TWO PDS BUT WOULD TREND CLOSER TO FAN MAXES FOR 3RD PD.
In the hours before
Special weather statement, Jun 5, 7:54 AM EDT, 1 hour 12 minutes before
NCZ060-061-TNZ012>018-034>047-066>074-083>087-099>102-VAZ001-002-005- 006-008-052000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 754 AM EDT FRI JUN 5 1998 ...SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EAST TENNESSEE...SOUTHWEST VIRGINIA AND SOUTHWEST NORTH CAROLINA THIS AFTERNOON AND THIS EVENING... A STATIONARY FRONT REMAINS IN PLACE ACROSS NORTH CAROLINA AND TENNESSEE THIS MORNING. A DISTURBANCE WILL MOVE ACROSS THE REGION IN THE UPPER LEVELS OF THE ATMOSPHERE WHICH WILL ACTIVATE THE DEVELOPMENT OF THUNDERSTORMS IN THE VICINITY OF THE FRONT THIS AFTERNOON AND EVENING. DUE TO THE INSTABILITY...SOME OF THESE STORMS COULD BECOME SEVERE. THE MAIN THREAT WILL BE FROM DAMAGING WINDS AND HAIL. REMEMBER...A SEVERE THUNDERSTORM IS ANY STORM THAT PRODUCES HAIL 3/4 INCH (DIME-SIZE) OR LARGER...AND/OR WINDS OF 58 MPH OR HIGHER. IN ADDITION TO THE THREAT FOR SEVERE THUNDERSTORMS...FLASH FLOODING WILL ALSO BE POSSIBLE ACROSS EAST TENNESSEE DUE TO THE ALREADY SATURATED GROUND FROM THE PAST SEVERAL DAYS HEAVY RAINS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTER GROUPS SHOULD CONTINUE TO MONITOR THE WEATHER SITUATION TODAY AND TONIGHT...AND BE PREPARED FOR POSSIBLE ACTIVATION. STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS FROM THE NATIONAL WEATHER SERVICE. TH
Special weather statement, Jun 5, 7:54 AM EDT, 1 hour 12 minutes before
NCZ060-061-TNZ012>018-034>047-066>074-083>087-099>102-VAZ001-002-005- 006-008-052000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 754 AM EDT FRI JUN 5 1998 ...SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EAST TENNESSEE...SOUTHWEST VIRGINIA AND SOUTHWEST NORTH CAROLINA THIS AFTERNOON AND THIS EVENING... A STATIONARY FRONT REMAINS IN PLACE ACROSS NORTH CAROLINA AND TENNESSEE THIS MORNING. A DISTURBANCE WILL MOVE ACROSS THE REGION IN THE UPPER LEVELS OF THE ATMOSPHERE WHICH WILL ACTIVATE THE DEVELOPMENT OF THUNDERSTORMS IN THE VICINITY OF THE FRONT THIS AFTERNOON AND EVENING. DUE TO THE INSTABILITY...SOME OF THESE STORMS COULD BECOME SEVERE. THE MAIN THREAT WILL BE FROM DAMAGING WINDS AND HAIL. REMEMBER...A SEVERE THUNDERSTORM IS ANY STORM THAT PRODUCES HAIL 3/4 INCH (DIME-SIZE) OR LARGER...AND/OR WINDS OF 58 MPH OR HIGHER. IN ADDITION TO THE THREAT FOR SEVERE THUNDERSTORMS...FLASH FLOODING WILL ALSO BE POSSIBLE ACROSS EAST TENNESSEE DUE TO THE ALREADY SATURATED GROUND FROM THE PAST SEVERAL DAYS HEAVY RAINS. EMERGENCY MANAGEMENT OFFICIALS AND STORM SPOTTER GROUPS SHOULD CONTINUE TO MONITOR THE WEATHER SITUATION TODAY AND TONIGHT...AND BE PREPARED FOR POSSIBLE ACTIVATION. STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS FROM THE NATIONAL WEATHER SERVICE. TH
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 5:23 AM EDT | Flash Flood Warning | MRX | Cumberland | 3 hr |
| Jun 5, 6:51 AM EDT | Severe Thunderstorm Warning | MRX | Hamilton | 49 min |
| Jun 5, 6:55 AM EDT | Severe Thunderstorm Warning | MRX | Hamilton | 45 min |
| Jun 5, 7:38 AM EDT | Flash Flood Warning | MRX | Bradley, Polk | 2 hr |
| Jun 5, 7:38 AM EDT | Flash Flood Warning | MRX | Hamilton | 2 hr |
| Jun 5, 6:26 PM EDT | Severe Thunderstorm Warning | MRX | Monroe | 34 min |
| Jun 5, 6:50 PM EDT | Flash Flood Warning | MRX | Monroe | 3 hr |
| Jun 5, 7:03 PM EDT | Severe Thunderstorm Warning | MRX | Knox | 32 min |
| Jun 5, 7:08 PM EDT | Severe Thunderstorm Warning | MRX | Grainger | 32 min |
| Jun 5, 7:11 PM EDT | Flash Flood Warning | MRX | Cumberland | 3 hr |
| Jun 5, 7:13 PM EDT | Severe Thunderstorm Warning | MRX | Hamblen, Jefferson | 32 min |
| Jun 5, 7:16 PM EDT | Severe Thunderstorm Warning | MRX | Sevier | 19 min |
| Jun 5, 7:26 PM EDT | Tornado Warning | MRX | Jefferson, Sevier | 19 min |
| Jun 5, 7:45 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Sevier | 40 min |
| Jun 5, 7:50 PM EDT | Severe Thunderstorm Warning | MRX | Greene, Hamblen, Hawkins | 35 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.