Alert archive / Mississippi / Flash Flood Warnings in 1990
Flash Flood Warning 20, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Apr 27, 1990, 3:37 PM CDT for Hinds County, Mississippi. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Apr 27, 1990, 3:37 PM CDT (20:37 UTC)
- Expired
- Apr 27, 1990, 5:45 PM CDT
- In force
- 2 hr
- 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, 8.6 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 6 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 KJAN 272047 COR FFWJAN MSC049-272245- BULLETIN - EBS ACTIVATION REQUESTED SMALL STREAM AND URBAN FLOOD WARNING...CORRECTION FOR SECOND LINE NATIONAL WEATHER SERVICE JACKSON MS 337 PM CDT FRI APR 27 1990 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 545 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MISSISSIPPI ...HINDS COUNTY AT 340PM...MODERATE TO HEAVY RAINS PERSISTED ACROSS HINDS COUNTY WITH SEVERAL REPORTS OF STREET AND LOW LAND FLOODING IN PROGRESS. RADAR INDICATED THAT THESE RAINS SHOULD LAST ANOTHER TWO HOURS AND STANDING WATER AREAS WILL ONLY INCREASE. PLEASE BEWARE OF SEVERE HYDROPLANING AND FLOODED STREETS FOR THE NEXT TWO HOURS ESPECIALLY IN THE JACKSON METRO AREA. DO NOT DRIVE YOUR CAR INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH MAY BE TOO DEEP TO ALLOW YOU TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER MUST BE ABANDONED QUICKLY. <
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, Apr 27, 12:21 PM CDT, 3 hours 16 minutes before
MSZALL-271800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1215 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 167 ISSUED FOR PORTIONS OF CENTRAL AND SOUTHERN MISSISSIPPI... A VERY MOIST AND UNSTABLE AIR MASS IS IN PLACE OVER MISSISSIPPI AND HAS PRODUCED ISOLATED THUNDERSTORMS OVER WEST AND SOUTH SECTIONS OF THE STATE TODAY. AT NOON...THE STRONGEST STORMS WERE LOCATED ALONG A LINE FROM RAYMOND TO BROOKHAVEN. AN UPPER LEVEL WEATHER DISTURBANCE IS APPROACHING THE STATE THIS AFTERNOON AND WILL RESULT IN EVEN MORE UNSTABLE CONDITIONS IN THE AREA. THUNDERSTORM ACTIVITY WILL INCREASE TODAY AND CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS OR TORNADOE7S THIS AFTERNOON AND EVENING. PEOPLE IN CENTRAL AND SOUTHERN MISSISSIPPI SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Apr 27, 12:47 PM CDT, 2 hours 50 minutes before
MSZALL-271900- SPECIAL WEATHER STATEMENT AND RADAR STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1246 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 167 IS IN EFFECT TILL 7 PM FOR A LARGE PART OF CENTRAL AND SOUTHERN MISSISSIPPI... AT 1240 PM...JACKSON RADAR INDICATED THUNDERSTORMS WERE RAPIDLY INCREASING IN INTENSITY AND COVERAGE ACROSS CENTRAL AND SOUTH-CENTRAL MISSISSIPPI. THE STRONGEST STORMS WERE OVER NORTHERN COPIAH AND SOUTHERN HINDS COUNTIES. PEA-SIZED HAIL WAS REPORTED AT TERRY AT 1240 PM. STRONG THUNDERSTORMS...SOME SEVERE...ARE EXPECTED TO CONTINUE TO DEVELOP OVER CENTRAL AND SOUTHERN MISSISSIPPI THIS AFTERNOON. LARGE HAIL... DAMAGING WINDS...AND TORNADOES ARE ALL POSSIBLE WITH THESE DEVELOPING THUNDERSTORMS. PEOPLE SHOULD BE READY TO TAKE COVER IF THREATENING WEATHER APPROACHES OR IF A WARNING IS ISSUED. MOVEMENT WAS TO THE NORTH AT 30 MILES AN HOUR.
Special weather statement, Apr 27, 1:41 PM CDT, 1 hour 56 minutes before
MSZALL-271930- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 130 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 167 IS IN EFFECT UNTIL 7 PM FOR A LARGE PART OF CENTRAL AND SOUTHERN MISSISSIPPI... AT 130 PM...JACKSON RADAR INDICATED STRONG THUNDERSTORMS OVER CENTRAL AND SOUTH MISSISSIPPI. GENERAL MOVEMENT WAS TO THE NORTH AT 25 MPH AND THE STRONGEST STORM WAS LOCATED JUST SOUTH OF YAZOO CITY. THESE STORMS HAVE PRODUCED HAIL...LIGHTNING AND HEAVY RAIN AND STRONG GUSTY WINDS ARE POSSIBLE. A LARGE AREA OF RAIN WAS INDICATED OVER THE WEST MISSISSIPPI FROM CLARKSDALE TO COLUMBIA AND SCATTERED SHOWERS AND THUNDERSTORMS WERE LOCATED FROM MERIDIAN TO GRENADA. STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER CENTRAL AND SOUTH MISSISSIPPI TODAY AND SEVERE THUNDERSTORMS ARE POSSIBLE. CONDITIONS WILL BE FAVORABLE FOR TORNADOES TODAY AND RESIDENTS SHOULD REMAIN ALERT TO DANGEROUS WEATHER DEVELOPMENTS. W
Special weather statement, Apr 27, 2:10 PM CDT, 1 hour 27 minutes before
MSZALL-272000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 210 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 167 IN EFFECT UNTIL 7 PM FOR A LARGE PART OF CENTRAL AND SOUTHERN MISSISSIPPI... STRONG THUNDERSTORMS CONTINUE TO TRACK NORTH OVER CENTRAL AND SOUTH MISSISSIPPI. THESE STORMS HAVE PRODUCED HAIL...HEAVY RAIN...STRONG WIND AND DANGEROUS LIGHTNING. RAINFALL AMOUNTS OF 11/2 INCHES IN 30 MINUTES WERE REPORTED AT JACKSON. THUNDERSTORM ACTIVITY WILL CONTINUE TO INCREASE IN STRENGTH AND NUMBER THIS AFTERNOON. AFTERNOON HEATING COMBINED WITH THE PASSAGE OF AN UPPER LEVEL WEATHER SYSTEM WILL RESULT IN THE DEVELOPMENT OF STRONG THUNDERSTORMS TODAY AND SEVERE THUNDERSTORM|S ARE LIKELY. TORNADO DEVELOPMENT IS ALSO POSSIBLE THROUGH THE EVENING.
Special weather statement, Apr 27, 2:13 PM CDT, 1 hour 24 minutes before
MSZ009-012-ALZ008-013-272100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 215 PM CDT FRI APR 27 1990 TORNADO WATCH NUMBER 167 CONTINUES IN EFFECT UNTIL 700 PM CDT FOR THE FOLLOWING COUNTIES IN EAST CENTRAL MISSISSIPPI...CLARKE...JASPER...NEWTON ...LAUDERDALE...JONES...WAYNE THE FLOLLOWING COUNTIES IN EXTREME WEST CENTRAL ALABAMA...SUMTET...CHOCTAW. AT 210 PM CDT RADAR INDICATED A LARGE AREA OF STRONG THUNDERSTORM OVER EAST CENTRAL MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE WEST OF A LINE FROM NEAR GREENWOOD TO NEAR HATTIESBURG. THEY WERE MOVING NORTH AT 25 MPH. EVERYONE IN AND CLOSE TO THE WATCH AREA SHOULD REMAIN WEATHER ALERT THROUGH THE AFTERNOON AS THIS IS A DANGEROUS SITUATION. <<
Special weather statement, Apr 27, 2:48 PM CDT, 49 minutes before
MSZALL-272030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 240 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 167 IN EFFECT UNTIL 7 PM FOR A LARGE PART OF CENTRAL AND SOUTHERN MISSISSIPPI... STRONG THUNDERSTORMS WERE INDICATED OVER CENTRAL AND SOUTH MISSISSIPPI WITH THE STRONGEST STORMS FROM GREENWOOD TO MCCOMB TO MAGEE. A FEW THUNDERSTORMS HAVE BEEN SEVERE WITH A REPORT OF A TORNADO TOUCHDOWN ALONG HIGHWAY 28 NEAR MAGEE. THESE STORMS HAVE PRODUCED DAMAGING WINDS WITH DOWNED TREES AND DAMAGE TO HOUSES. MOVEMENT WAS TO THE NORTH AT ABOUT 25 MPH. STRONG THUNDERSTORMS WILL CONTINUE TO REDEVELOP OVER CENTRAL AND SOUTH MISSISSIPPI TODAY AND MOVE TO THE NORTH. FORMATION OF SEVERE THUNDERSTORMS IS LIKELY THROUGH THE AFTERNOON.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 2:09 PM CDT | Tornado Warning | JAN | Simpson | 11 min |
| Apr 27, 2:09 PM CDT | Tornado Warning | JAN | Smith | 36 min |
| Apr 27, 2:17 PM CDT | Tornado Warning | JAN | Rankin | 28 min |
| Apr 27, 2:38 PM CDT | Severe Thunderstorm Warning | JAN | Madison, Yazoo | 37 min |
| Apr 27, 2:46 PM CDT | Tornado Warning | JAN | Rankin, Scott | 29 min |
| Apr 27, 3:03 PM CDT | Severe Thunderstorm Warning | JAN | Holmes | 42 min |
| Apr 27, 3:18 PM CDT | Tornado Warning | JAN | Leake, Madison | 42 min |
| Apr 27, 3:18 PM CDT | Tornado Warning | JAN | Scott | 32 min |
| Apr 27, 4:02 PM CDT | Tornado Warning | JAN | Attala | 43 min |
| Apr 27, 4:09 PM CDT | Tornado Warning | JAN | Simpson | 36 min |
| Apr 27, 4:46 PM CDT | Tornado Warning | JAN | Carroll | 29 min |
| Apr 27, 4:53 PM CDT | Severe Thunderstorm Warning | JAN | Newton | 37 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.