Alert archive / Mississippi / Flash Flood Warnings in 1989
Flash Flood Warning 4, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at May 4, 1989, 8:49 AM CDT for Rankin County, Mississippi. It was in force for 116 min.
The area
The counties it named.
The facts
- Issued
- May 4, 1989, 8:49 AM CDT (13:49 UTC)
- Expired
- May 4, 1989, 10:45 AM CDT
- In force
- 116 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Rankin 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, 1.8 hours before the alert went out and 14 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
- 174 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 563 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 330 m²/s²
- 0-3 km storm-relative helicity
- 315 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KJAN 041351
FFWJAN
MSC121-041545-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
849 AM CDT THU MAY 4 1989
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1045 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CENTRAL MISSISSIPPI
...RANKIN
NEARLY 4 INCHES OF RAIN HAVE FALLEN OVER PARTS OF RANKIN COUNTY DURING
THE PAST COUPLE OF HOURS...AND MORE RAIN IS LIKELY DURING THE NEXT 2
HOURS. SOME STREET FLOODING AND ROAD CLOSURES HAVE ALREADY OCCURRED IN
THE CROSSGATES AND PEARL AREAS...AND CONDITIONS WILL LIKELY GET WORSE
BEFORE THE RAIN SUBSIDES LATER THIS MORNING.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. DO NOT STAY IN AREAS SUBJECT TO FLASH FLOODING WHEN
WATER BEGINS RISING. MOVE TO HIGHER GROUND.
<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 4, 3:58 AM CDT, 4 hours 51 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 350 AM CDT THU MAY 4 1989 ...STRONG THUNDERSTORMS DEVELOPING OVER WEST CENTRAL AND NORTHWEST MISSISSIPPI... AT 340 AM THE STRONGEST STORMS WERE JUST SOUTH OF GREENWOOD AND NORTH OF HOLLY BLUFF. THESE STORMS WILL BE ACCOMPANIED BY STRONG GUSTY WINDS...BRIEF HEAVY RAIN AND POSSIBLE HAIL AS THEY MOVE TO THE NORTH AT 20 MPH. SHOWERS AND THUNDERSTORMS WILL BECOME MORE NUMEROUS OVE*R THE STATE TODAY IN THE MOIST AND UNSTABLE AIR MASS. SOME OF THE STORMS MAY BECOME SEVERE AS THE AIR MASS CONTINUES TO BECOME MORE UNSTABLE...MAINLY THIS AFTERNOON AND TONIGHT.
Special weather statement, May 4, 4:24 AM CDT, 4 hours 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 420 AM CDT THU MAY 4 1989 STRONG THUNDERSTORMS CONTINUE TO DEVELOP OVER SECTIONS OF WEST CENTRAL AND NORTHWEST MISSISSIPPI. AT 415 AM CDT THE STRONGEST STORM WAS WAS LOCATED IN SOUTHWEST HOLMES COUNTY...ABOUT 20 MILES WEST OF LEXINGTON. THE STORM WAS MOVING TO THE NORTHEAST AT 20 MPH...AND WILL BE ACCOMPANIED BY STRONG GUSTY WINDS...BRIEF HEAVY RAIN AND HAIL. SHOWERS AND T8HUNDERSTORMS WILL CONTINUE TO INCREASE OVER THE STATE TODAY IN THE MOIST AND UNSTABLE AIR MASS. SOME OF THE STORMS MAY BECOME SEVERE AS THE AIR MASS CONTINUES TO BECOME MORE UNSTABLE...MAINLY THIS AFTERNOON AND TONIGHT.
Special weather statement, May 4, 5:36 AM CDT, 3 hours 13 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 430 AM CDT THU MAY 4 1989 AT 425 AM CDT THUNDERSTORMS AND SHOWERS WERE SCATTERED OVER PORTIONS OF NORTH AND CENTRAL MISSISSIPPI. STRONG THUNDERSTORMS WERE IN A BAND EXTENDING ACROSS NORTH RANKIN... SOUTH MADISON AND YAZOO COUNTIES. SOME OF THESE STORMS WILL BE ACCOMPANIED BY STRONG GUSTY WINDS...BRIEF HEAVY RAIN...FREQUENT CLOUD TO GROUND LIGHTNING AND HAIL AS THEY= MOVE TO THE NORTH AT 20 MPH.
Special weather statement, May 4, 6:08 AM CDT, 2 hours 41 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 600 AM CDT THU MAY 4 1989 AT 555 AM CDT THUNDERSTORMS AND SHOWERS WERE SCATTERED OVER PORTIONS OF NORTH AND CENTRAL MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE IN A BAND EXTENDING ACROSS SCOTT... NORTH RANKIN...MADISON AND EASTERN YAZOO COUNTIES. SOME OF THESE STORMS WILL BE ACCOMPANIED BY STRONG GUSTY WINDS...BRIEF HEAVY RAIN...FREQUENT CLOUD TO _GROUND LIGHTNING AND HAIL AS THEY MOVE TO THE NORTHEAST AT 20 MPH.
Special weather statement, May 4, 6:38 AM CDT, 2 hours 11 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 630 AM CDT THU MAY 4 1989 STRONG THUNDERSTORMS CONTINUE OVER PORTIONS OF CENTRAL MISSISSIPPI. AT 625 AM CDT THE STRONGER THUNDERSTORMS WERE OVER SCOTT...MADISON AND SOUTHERN LEAKE COUNTIES. SOME OF THESE STORMS WILL BE ACCOMPANIED BY STRONG GUSTY WINDS...BRIEF HEAVY RAIN...FREQUENT CLOUD TO GROUND LIGHTNING AND HAIL AS THEY MOVE TO THE NORTHEAST AT j20 MPH. OTHER THUNDERSTOMS WERE OVER YAZOO AND COPIA COUNTIES. PATCHES OF RAIN AND SHOWERS COVERED MUCH OF THE NORTHERN TWO THIRDS OF THE STATE.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 10:42 AM CDT | Tornado Warning | JAN | Issaquena, Sharkey | 48 min |
| May 4, 10:47 AM CDT | Severe Thunderstorm Warning | JAN | Warren | 43 min |
| May 4, 11:16 AM CDT | Severe Thunderstorm Warning | JAN | Claiborne, Hinds | 59 min |
| May 4, 11:35 AM CDT | Severe Thunderstorm Warning | JAN | Madison, Rankin | 40 min |
| May 4, 12:11 PM CDT | Severe Thunderstorm Warning | JAN | Simpson | 49 min |
| May 4, 12:28 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 32 min |
| May 4, 12:40 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 35 min |
| May 4, 12:42 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Newton | 48 min |
| May 4, 1:08 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Lauderdale | 52 min |
Nearby
Flash Flood Warnings in Mississippi, 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.