Alert archive / Mississippi / Flash Flood Warnings in 1990
Flash Flood Warning 30, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at May 31, 1990, 2:06 PM CDT for Warren County, Mississippi. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- May 31, 1990, 2:06 PM CDT (19:06 UTC)
- Expired
- May 31, 1990, 9:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Warren County, MS
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
Jackson, MS (KJAN), launched 12:00Z, 7.1 hours before the alert went out and 73 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
- 908 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 98 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 KJAN 311910 FFWJAN MSC149-010200- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE JACKSON MS 206 PM CDT THU MAY 31 1990 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL MISSISSIPPI ...WARREN COUNTY THUNDERSTORMS CONTINUE TO TRAIL OVER WARREN COUNTY THIS AFTERNOON. A LONG FETCH OF SHOWERS AND THUNDERSTORMS EXTENDED WESTWARD ACROSS LOUISIANA AND TEXAS. THIS ACTIVITY WILL CONTINUE TO TRACK OVER THE WARREN COUNTY AREA THIS AFTERNOON AND EVENING. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES OR LOW SPOTS IF WATER COVERS THE ROAD;. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
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.
In the hours before
Special weather statement, May 31, 1:44 PM CDT, 22 minutes before
MSZALL-311945- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 141 PM CDT THU MAY 31 1990 A FLASH FLOOD WATCH REMAINS IN EFFECT FOR MUCH OF WEST MISSISSIPPI THIS AFTERNOON. AT 130 PM...JACKSON RADAR INDICATED A BAND OF SCATTERED THUNDERSTORMS WITH LOCALY HEAVY RAIN EXTENDING FROM NEAR PORT GIBSON TO NEAR COLUMBI THE HEAVIEST THUNDERSTORMS WERE LOCATED 10 MILES WEST OF CRYSTAL SPRINGS, 30 MILES WEST OF PORT GIBSON, AND 15 MILES SOUTH OF COLUMBIA. THE BAND HAS MOVED LITTLE DURING THE PAST SEVERAL HOURS. THIS HAS RESU IN FLOODING OF LOW LYING AREAS, ESPECIALLY IN THE VICKSBURG AREA. PERSONS IN VICKSBURG AND WEST MISISSIPPI SHOULD REMAIN ALERT TO FLASH FLOODING FROM THUNDERSTORMS THIS AFTERNOON. MOTORISTS ARE ADVISED NOT TO DRIVE THORUGH WATER OF UNKNOWN DEPTH.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 10:59 AM CDT | Flash Flood Warning | JAN | Warren | 3 hr |
| May 31, 1:00 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 30 min |
Nearby
Flash Flood Warnings in Mississippi, 1990Every flash flood warning in 1990
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.