Alert archive / Mississippi / Flash Flood Warnings in 2012
Flash Flood Warning 35, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Mar 23, 2012, 6:34 AM CDT for Kemper County, Mississippi. It was in force for 69 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2012, 6:34 AM CDT (11:34 UTC)
- Expired
- Mar 23, 2012, 7:43 AM CDT
- In force
- 69 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
County Kemper County, MS
The radar
The Columbus AFB radar (KGWX), 125 km from the middle of the area, began a volume at 11:34 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 11.6 hours before the alert went out and 154 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
- 7 J/kg
- Mixed-layer CIN
- -336 J/kg
- Mixed-layer LCL
- 1245 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
498 WGUS54 KJAN 231134 FFWJAN MSC069-231330- /O.NEW.KJAN.FF.W.0035.120323T1134Z-120323T1330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE JACKSON MS 634 AM CDT FRI MAR 23 2012 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * FLASH FLOOD WARNING FOR... EASTERN KEMPER COUNTY IN EAST CENTRAL MISSISSIPPI... * UNTIL 830 AM CDT * AT 632 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A CLUSTER OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR PORTERVILLE...OR 15 MILES NORTH OF LAUDERDALE. THE STORMS WERE MOVING NORTHEAST AT 25 MPH. ESTIMATED RADAR RAINFALL AMOUNTS...ON THE ORDER OF ONE TO THREE INCHES...HAVE OCCURRED IN THE PAST HOUR. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELECTRIC MILLS AND DE KALB VERY HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT TWO HOURS WITH AN ADDITIONAL ONE TO THREE INCHES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3292 8858 3292 8836 3259 8839 3260 8879 $$ 17
1 follow-up statement
826 WGUS74 KJAN 231243 FFSJAN FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 743 AM CDT FRI MAR 23 2012 MSC069-231253- /O.CAN.KJAN.FF.W.0035.000000T0000Z-120323T1330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ KEMPER MS- 743 AM CDT FRI MAR 23 2012 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR EASTERN KEMPER COUNTY... LAT...LON 3292 8858 3292 8836 3259 8839 3260 8879 $$ MRM
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 9:18 PM CDT | River Flood Warning | JAN | Clarke | 3 days |
| Mar 23, 7:04 AM CDT | Dense Fog Advisory | JAN | Adams, Claiborne, Copiah, Franklin, Hinds, Jefferson and 5 more | 3 hr |
| Mar 23, 1:43 PM CDT | River Flood Warning | JAN | Clay | 55 hr |
| Mar 23, 2:52 PM CDT | River Flood Warning | JAN | Lauderdale, Newton | 19 hr |
Nearby
Flash Flood Warnings in Mississippi, 2012Every flash flood warning in 2012
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; radar from the NEXRAD Level II archive.