Alert archive / Texas / Flash Flood Warnings in 1989
Flash Flood Warning 21, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at May 16, 1989, 11:38 PM CDT for Harrison County, Marion County, Texas. It was in force for 67 min.
The area
The counties it named.
The facts
- Issued
- May 16, 1989, 11:38 PM CDT (04:38 UTC)
- Expired
- May 17, 1989, 12:45 AM CDT
- In force
- 67 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Harrison County, TX, Marion County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Longview/Gregg, TX (KGGG), launched 00:00Z, 4.6 hours before the alert went out and 42 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
- 7 J/kg
- Mixed-layer CIN
- -383 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 5 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 KSHV 170438
FFWSHV
TXC067-203-315-170545-
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1138 PM CDT TUE MAY 16 1989
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1245 AM CDT
AND A FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTHEAST TEXAS
...CASS...HARRISON...MARION
AT 1135 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT
SHOWED A LINE OF SEVERE THUNDERSTORMS THAT EXTENDED FROM NEAR
DANGERFIELD TO ASHLAND TO KILGORE TEXAS. MOVEMENT WAS EAST AT
40 TO 50 MPH.
A TORNADO WATCH REMAINED IN EFFECT FOR PARTS OF NORTHEAST TEXAS.
A FLASH FLOOD WATCH WAS ALSO IN EFFECT FOR NORTHEAST TEXAS AS
WELL AS SOUTHEAST OKLAHOMA AND NORTHWEST LOUISIANA.
LARGE HAIL...HIGH WINDS AND SOME FLODING HAVE BEEN REPORTED
WITH THESE STORMS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 10:54 PM CDT | Flash Flood Warning | SHV | Gregg, Rusk | 66 min |
| May 16, 10:54 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Rusk | 66 min |
| May 16, 11:38 PM CDT | Flash Flood Warning | SHV | Cass | 67 min |
| May 16, 11:38 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Marion | 67 min |
| May 16, 11:38 PM CDT | Severe Thunderstorm Warning | SHV | Cass | 67 min |
| May 17, 9:27 AM CDT | Tornado Warning | SHV | Gregg, Rusk | 78 min |
| May 17, 1:53 PM CDT | Severe Thunderstorm Warning | SHV | Panola, Shelby | 67 min |
| May 17, 2:09 PM CDT | Flash Flood Warning | SHV | Bowie, Cass, Marion | 4 hr |
| May 17, 2:36 PM CDT | Severe Thunderstorm Warning | SHV | Marion | 21 min |
| May 17, 2:36 PM CDT | Severe Thunderstorm Warning | SHV | Bowie | 64 min |
| May 17, 2:36 PM CDT | Severe Thunderstorm Warning | SHV | Cass | 69 min |
| May 17, 2:46 PM CDT | Tornado Warning | SHV | Cass | 59 min |
| May 17, 4:32 PM CDT | Severe Thunderstorm Warning | SHV | Panola, Rusk | 88 min |
| May 17, 5:35 PM CDT | Flash Flood Warning | SHV | Panola, Shelby | 4 hr |
| May 17, 5:35 PM CDT | Flash Flood Warning | SHV | Gregg, Harrison, Rusk | 4 hr |
| May 17, 5:35 PM CDT | Tornado Warning | SHV | Panola, Shelby | 85 min |
Nearby
Flash Flood Warnings in Texas, 1989Every flash flood warning in 1989
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.