Alert archive / Louisiana / Flash Flood Warnings in 1999
Flash Flood Warning 9, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Jan 29, 1999, 11:03 AM CST for East Carroll Parish, Madison Parish, Richland Parish, Louisiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 29, 1999, 11:03 AM CST (17:03 UTC)
- Expired
- Jan 29, 1999, 2:00 PM CST
- In force
- 3 hr
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties East Carroll Parish, LA, Madison Parish, LA, Richland Parish, LA
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 5.1 hours before the alert went out and 127 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
- 55 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 528 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 291703 FFWJAN ARC003-017-LAC035-065-067-083-123-292000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE JACKSON MS 1103 AM CST FRI JAN 29 1999 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * FLASH FLOOD WARNING FOR... ASHLEY COUNTY IN SOUTHEASTERN ARKANSAS CHICOT COUNTY IN SOUTHEASTERN ARKANSAS EAST CARROLL PARISH IN NORTHEASTERN LOUISIANA MADISON PARISH IN NORTHEASTERN LOUISIANA MOREHOUSE PARISH IN NORTHEASTERN LOUISIANA WEST CARROLL PARISH IN NORTHEASTERN LOUISIANA RICHLAND PARISH IN NORTHEASTERN LOUISIANA * UNTIL 200 PM CST * A LARGE AREA OF RAIN AND THUNDERSTORMS WILL CONTINUE MOVING ACROSS THE WARNED AREA THROUGH EARLY AFTERNOON. RAINFALL OF 3 TO 5 INCHES HAS BEEN WIDESPREAD ACROSS THE AREA DURING THE MORNING HOURS. * NUMEROUS ROADS WERE REPORTED FLOODED ACROSS THE WARNING AREA... WITH A FEW HOMES BEING THREATENED BY HIGH WATER. WITH HEAVY RAIN AND THUNDERSTORMS EXP ECTED TO PERSIST INTO EARLY AFTERNOON...THE ADDITIONAL RAINFALL WILL CAUSE FLOODING PROBLEMS TO WORSEN. MOVE TO HIGHER GROUND IF FLOOD WATERS THREATEN. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROADWAY. 65 &
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, Jan 29, 10:00 AM CST, 1 hour 3 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 300400- AREA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CST FRI JAN 29 1999 A STATIONARY FRONT WILL PERSIST FROM NORTHEAST LOUISIANA TO NORTHEAST MISSISSIPPI MUCH OF PERIOD. A DEEP LOW PRESSURE SYSTEM OVER TEXAS WILL MAINTAIN SOUTHERLY FLOW THAT WILL FORCE A CONTINUOUS STREAM OF MOISTURE INTO THE REGION. PERIODS OF RAIN AND THUNDERSTORMS WILL CONTINUE THROUGH TONIGHT. A FEW THUNDERSTORMS MAY PRODUCE LARGE HAIL OR STRONG WIND BUT THE MAIN WEATHER THREAT TODAY AND TONIGHT WILL BE THE POTENTIAL FOR FLOODING RAINS. A FLASH FLOOD WATCH HAS BEEN ISSUED FOR WESTERN AND NORTHERN ZONES FOR TODAY. THE WATCH WILL LIKELY BE EXTENDED INTO TONIGHT. ACTIVATION OF STORM SPOTTERS AND HAM RADIO OPERATORS SHOULD NOT BE REQUIRED TODAY OR TONIGHT BUT EMERGENCY MANAGEMENT/CIVIL DEFENSE PERSONNEL MAY BE REQUIRED TODAY AND TONIGHT. FOR MORE INFORMATION...PLEASE VISIT OUR INTERNET WEB SITE AT: HTTP://WWW.JANNWS.STATE.MS.US /IN LOWER CASE LETTERS/
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 9:06 AM CST | Flash Flood Warning | JAN | East Carroll, Morehouse, West Carroll | 2 hr |
| Jan 29, 11:03 AM CST | Flash Flood Warning | JAN | Morehouse, West Carroll | 3 hr |
| Jan 29, 12:33 PM CST | Severe Thunderstorm Warning | JAN | East Carroll, Madison | 47 min |
| Jan 29, 2:09 PM CST | Flash Flood Warning | JAN | East Carroll | 6 hr |
| Jan 29, 2:09 PM CST | Flash Flood Warning | JAN | Morehouse, Richland, West Carroll | 6 hr |
| Jan 29, 2:09 PM CST | Flash Flood Warning | JAN | Madison | 6 hr |
| Jan 29, 4:33 PM CST | Flash Flood Warning | JAN | Catahoula, Concordia, Tensas | 5 hr |
| Jan 29, 4:33 PM CST | Flash Flood Warning | JAN | Franklin | 5 hr |
Nearby
Flash Flood Warnings in Louisiana, 1999Every flash flood warning in 1999
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.