Alert archive / Alabama / Flash Flood Warnings in 1991
Flash Flood Warning 10, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at May 26, 1991, 5:28 AM CDT for Washington County, Alabama. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 26, 1991, 5:28 AM CDT (10:28 UTC)
- Expired
- May 26, 1991, 8:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Washington County, AL
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 00:00Z, 10.5 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
- 346 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- -35 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 KMOB 261029 FFWMOB ALC129-261330- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 528 AM CDT SUN MAY 26 1991 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 830 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHWEST ALABAMA ...WASHINGTON COUNTY AT 525 AM THE MOBILE RADAR INDICATED A NORTH-SOUTH BAND OF VERY HEAVY SHOWERS MOVING NORTHWARD INTO SOUTHERN WASHINGTON COUNTY. THE RAIN AREA IS MOVING TOWARD THE NORTH AT 20 MPH. SATELLITE ESTIMATES AND RADAR OBSERVATIONS INDICATE THAT 3 OR MORE INCHES OF RAIN HAS FALLEN OVER THE COUNTY SINCE SATURDAY EVENING. ADDITIONAL AMOUNTS OF 2 OR MORE INCHES ARE LIKELY xDURING THE NEXT 3 HOURS. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
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, May 26, 3:29 AM CDT, 1 hour 59 minutes before
ALZ013-015-016-MSZ014-013-261030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOBILE AL 325 AM CDT SUN MAY 26 1991 ...STRONG WINDS AND HEAVY RAIN FOR SOUTHWEST ALABAMA... A SMALL BUT TIGHTLY WOUND LOW PRESSURE SYSTEM DEVELOPED OVER THE NORTHERN GULF SHORTLY AFTER MIDNIGHT AND IS NOW MOVING ONSHORE ALONG THE ALABAMA-MISSISSIPPI STATE LINE WITH VERY HEAVY RAINFALL AND STRONG WINDS. THE MOBILE RADAR INDICATED THE CENTER WAS LOCATED 20 MILES SOUTHWEST OF MOBILE AT 315 PM. WORKERS ALONG THE MOBILE RIVER HAVE ESTIMATED WINDS OF 50 TO 60 MPH FROM THE SOUTHEAST DURING THE PAST FEW MINUTES. AT 200 AM DAUPHIN ISLAND REPORTED SOUTHEAST WINDS 41 WITH GUSTS TO 47 MPH. A GUST TO 43 MPH OCCURRED AT THE MOBILE AIRPORT JUST A FEW MINUTES AGO. AS THE LOW PRESSURE SYSTEM MOVES INLAND DURING THE NEXT HOUR AT ABOUT 15 MPH...THE VERY HEAVY RAINFALL AND WINDS OF 50 TO 60 MPH ARE EXPECTED TO CONTINUE. CONDITIONS SHOULD IMPROVE AS THE LOW GETS AWAY FROM MOBILE...BUT HEAVY RAINFALL IS LIKELY OVER THE INLAND COUNTIES OF SOUTHEAST MISSISSIPPI AND SOUTHWEST ALABAMA.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 4:04 AM CDT | Flash Flood Warning | MOB | Mobile | 3 hr |
Nearby
Flash Flood Warnings in Alabama, 1991Every flash flood warning in 1991
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.