Alert archive / Mississippi / Flash Flood Warnings in 1987
Flash Flood Warning 9, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 5, 1987, 5:45 PM CDT for Hinds County, Mississippi. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Aug 5, 1987, 5:45 PM CDT (22:45 UTC)
- Expired
- Aug 5, 1987, 6:45 PM CDT
- In force
- 60 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Hinds 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, 10.8 hours before the alert went out and 35 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
- 2174 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 1 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 052245
FFWJAN
MSC049-052345-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
545 PM CDT WED AUG 5 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CENTRAL MISSISSIPPI
...EASTERN HINDS
A CLUSTER OF STRONG THUNDERSTORMS IN THE JACKSON AREA IS DUMPING VERY
HEAVY RAINFALL IN THE CITY. FLOODING OF SOME ROADWAYS CAN BE
EXPECTED DURING THE NEXT HOUR AS THE STORMS MOVE THROUGH.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. 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, Aug 5, 2:22 PM CDT, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 222 PM CDT WED AUG 5 1987 AT 215 PM THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER PORTIONS OF SOUTHCENTRAL MISSISSIPPI. ONE OF THE LARGER THUNDERSTORMS WAS LOCATED JUST NORTH OF WESSON. WITH ABUNDANT MOISTURE...AND HEATING...MORE THUNDERSTORMS ARE LIKELY TO BECOME ACTIVE THROUGHOUT SOME SOUTHCENTRAL COUNTIES FOR THE NEXT FEW HOURS. SOME HEAVY RAINS ARE POSSIBLE WITH THESE THUNDERSTORMS...DUE TO THEIR SLOW MOVEMENT.
Special weather statement, Aug 5, 4:29 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 430 PM CDT WED AUG 5 1987 ...THUNDERSTORMS INCREASING OVER CENTRAL AND SOUTH MISSISSIPPI... AT 430 PM...STRONG THUNDERSTORMS WERE SCATTERED OVER CENTRAL AND SOUTH MISSISSIPPI. STRONGEST STORMS WERE OVER THE SOUTHERN PORTIONS OF PIKE AND AMITE COUNTIES NEAR THE LOUISIANA BORDER...BUT OTHER STRONG STORMS WERE IN A BAND FROM UTICA TO D`LO TO RALEIGH...OVER BROOKHAVEN AND PRENTISS... AND OVER THE EASTERN SECTIONS OF THE JACKSON METROPOLITAN AREA... ESPECIALLY BETWEEN BRANDON AND THE ROSS BARNETT RESERVOIR. ALTHOUGH THESE STORMS DO NOT APPEAR TO BE SEVERE ON RADAR...THEY WILL PRODUCE WIND GUSTS OF UP TO 40 MILES PER HOUR...SMALL HAIL...VERY HEAVY RAINFALL...AND PLENTY OF DANGEROUS LIGHTNING. THE GREATEST DANGER FROM THESE STORMS IS THE LIGHTNING!! STAY INDOORS...AWAY FROM ELECTRICAL APPLIANCES AND WINDOWS...AND OFF THE TELEPHONE. < A7LSO...BE PREPARED TO TAKE COVER IF WARNINGS ARE ISSUED OR THE WEATHER BECOMES THREATENING. ONE OF THE STRONGER STORMS BLEW DOWN A COUPLE OF TREES NEAR MCCOMB AROUND 3 PM. ALL THE STORMS WERE MOVING TO THE SOUTHEAST AT 10 MILES PER HOUR.
Special weather statement, Aug 5, 5:36 PM CDT, 9 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
535 PM CDT WED AUG 5 1987
...STRONGEST THUNDERSTORMS OVER CENTRAL MISSISSIPPI...
AT 535 PM...A CLUSTER OF STRONG THUNDERSTORMS WAS SITUATED OVER
THE JACKSON METROPOLITAN AREA AND BETWEEN JACKSON AND FLORENCE.
THESE STORMS ARE PRODUCING VERY HEAVY RAINFALL...WIND GUSTS OF UP
TO 35 OR 40 MILES PER HOUR...AND PLENTY OF DANGEROUS CLOUD TO
GROUND LIGHTNING.
ELSEWHERE...THUNDERSTORMS OF LESSER INTENSITY WERE WEAKENING OVER SOUTH
MISSISSIPPI BETWEEN MCCOMB AND LAUREL. OTHER ISOLATED THUNDERSTORMS
WERE BETWEEN MERIDIAN AND CORINTH.
THE GREATEST DANGER FROM ANY OF THESE THUNDERSTORMS IS THE LIGHTNING.
STAY INDOORS...AND AWAY FROM WINDOWS AND ELECTRICAL APPLIANCES.
<
HEAVY RAINFALL IN THE JACKSON AREA WILL ALSO PRODUCE SOME LOCALIZED
FLOODING OF ROADWAYS IN THE USUAL LOW AREAS DURING THE NEXT HOUR...
SO...IF YOU HAVE TO DRIVE...SLOW DOWN AND TAKE IT EASY.
MOVEMENT OF ALL THE STORMS WAS TO THE SOUTHEAST AT 10 MILES PER HOUR.The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 2:55 PM CDT | Severe Thunderstorm Warning | JAN | Pike | 35 min |
Nearby
Flash Flood Warnings in Mississippi, 1987Every flash flood warning in 1987
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.