Alert archive / Alabama / Flash Flood Warnings in 2009
Flash Flood Warning 37, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at May 27, 2009, 4:13 PM CDT for Clarke County, Alabama. It was in force for 92 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
- May 27, 2009, 4:13 PM CDT (21:13 UTC)
- Expired
- May 27, 2009, 5:45 PM CDT
- In force
- 92 min
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County Clarke County, AL
The radar
The Mobile radar (KMOB), 126 km from the middle of the area, began a volume at 21:16 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
Birmingham, AL (KBMX), launched 12:00Z, 9.2 hours before the alert went out and 191 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
- 578 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 466 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KMOB 272113 FFWMOB ALC025-272245- /O.NEW.KMOB.FF.W.0037.090527T2113Z-090527T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 413 PM CDT WED MAY 27 2009 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA... * UNTIL 545 PM CDT * AT 412 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM NEAR CHILTON...OR 10 MILES NORTHWEST OF GROVE HILL...MOVING EAST AT 10 MPH. * THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA FROM A STORM MOVING EAST AT 5 MPH. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3186 8808 3187 8780 3166 8780 3168 8805 $$
1 follow-up statement
000 WGUS54 KMOB 272115 CCA FFWMOB ALC025-272245- /O.COR.KMOB.FF.W.0037.090527T2113Z-090527T2245Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED NATIONAL WEATHER SERVICE MOBILE AL 413 PM CDT WED MAY 27 2009 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CLARKE COUNTY IN SOUTHWEST ALABAMA... * UNTIL 545 PM CDT * AT 412 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM NEAR CHILTON...OR 10 MILES NORTHWEST OF GROVE HILL...MOVING EAST AT 10 MPH. * THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3186 8808 3187 8780 3166 8780 3168 8805 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 10:39 AM CDT | Special Marine Warning | MOB | 36 min | |
| May 27, 11:13 AM CDT | Special Marine Warning | MOB | 47 min | |
| May 27, 1:52 PM CDT | Severe Thunderstorm Warning | MOB | Covington | 23 min |
| May 27, 3:36 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 24 min |
| May 27, 3:55 PM CDT | Severe Thunderstorm Warning | MOB | Clarke | 35 min |
| May 27, 4:10 PM CDT | Flash Flood Warning | MOB | Wilcox | 65 min |
| May 27, 4:29 PM CDT | Severe Thunderstorm Warning | MOB | Wilcox | 31 min |
| May 27, 4:36 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Washington | 24 min |
| May 27, 5:17 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Washington | 28 min |
| May 27, 6:07 PM CDT | Areal Flood Advisory | MOB | Clarke, Washington | 3 hr |
| May 27, 6:13 PM CDT | Areal Flood Advisory | MOB | Wilcox | 3 hr |
| May 27, 6:15 PM CDT | Severe Thunderstorm Warning | MOB | Clarke, Washington | 30 min |
| May 27, 6:39 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw, Clarke, Washington | 36 min |
| May 27, 6:45 PM CDT | Flash Flood Warning | MOB | Washington | 3 hr |
Nearby
Flash Flood Warnings in Alabama, 2009Every flash flood warning in 2009
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.