Alert archive / Alabama / Flash Flood Warnings in 1990
Flash Flood Warning 57, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Apr 28, 1990, 1:48 AM CDT for Jefferson County, Alabama. It was in force for 117 min.
The area
The counties it named.
The facts
- Issued
- Apr 28, 1990, 1:48 AM CDT (06:48 UTC)
- Expired
- Apr 28, 1990, 3:45 AM CDT
- In force
- 117 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jefferson County, AL
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
Centreville/Bibb, AL (KCKL), launched 00:00Z, 6.8 hours before the alert went out and 78 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
- 112 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1295 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 280651 FFWBHM ALC073-280845- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 148 AM CDT SAT APR 28 1990 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 345 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH ALABAMA ...JEFFERSON COUNTY AT 148 AM CDT WATER WAS REPORTED NEARLY COVERING ROADS IN SEVERAL PARTS OF JEFFERSON COUNTY...ESPECIALLY IN THE PINSON/CENTER POINT AREA. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, 8:25 PM CDT, 5 hours 23 minutes before
ALZ004>009-011-013-280210- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 820 PM CDT FRI APR 27 1990 ...TORNADO WATCH UNTIL 10 PM CDT FOR PARTS OF WESTERN ALABAMA... A TORNADO WATCH IS IN EFFECT FOR PARTS OF WEST CENTRAL ALABAMA UNTIL 10 PM CDT. A FEW CITIES INCLUDED IN THE WATCH ARE FAYETTE...HAMILTON... TUSCALOOSA...GREENSBORO...ALICEVILLE AND DEMOPOLIS. RAIN...AT TIMES HEAVY... WAS MOVING INTO WEST CENTRAL ALABAMA. AT 820 PM CDT...THE LEADING EDGE OF THE RAIN EXTENDED ALONG A LINE FROM HAMILTON IN MARION COUNTY TO CENTREVILLE IN BIBB COUNTY THEN FURTHER SOUTH TO THE FLORIDA/ALABAMA BORDER. THE RAIN WAS MOVING NORTH AROUND 35 MPH. THE STONGER STORMS WERE LOCATED I%N EAST CENTRAL MISSISSIPPI AND SHOULD MOVE INTO THE WEST CENTRAL COUNTIES OF ALABAMA INCLUDING SUMTER... PICKENS... AND LAMAR WITHIN THE NEXT TWO HOURS. THESE STORMS MAY CONTAIN GUSTY WINDS... HEAVY RAIN... AND DANGEROUS LIGHTNING.
Special weather statement, Apr 27, 9:17 PM CDT, 4 hours 31 minutes before
ALZ004>009-011-013-280330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 915 PM CDT FRI APR 27 1990 THE TORNADO WATCH THAT WAS ISSUED LATE THIS AFTERNOON FOR PORTIONS OF WEST ALABAMA HAS BEEN CANCELLED. HOWEVER... AT 913 CDT A LARGE AREA OF RAIN AND THUNDERSTORMS EXTENDED FROM NORTHWEST ALABAMA DOWN TO NEAR BIRMIMGHAM THEN FURTHER SOUTH INTO SOUTH ALABAMA. THE RAIN WAS HEAVY AT TIMES...PARTICULARLY BETWEEN CENTREVILLE AND DEMOPOLIS. THE RAIN WAS MOVING NORTH/NORTHEAST AT 30 MPH. MOTORISTS TONIGHT WILL HAVE TO REDUCE THEIR SPEED DUE TO THE LIMITED VISIBILITY BEING CAUSED BY THE HEAVY RAIN. MOTORISTS SHOULD ALSO BE ALERT FOR POSSIBILITY OF LOCALIZED STREET FLOODING. } EVEN THOUGH THE WATCH HAS BEEN CANCELLED...WE ARE NOT OF THE WOODS YET. ANOTHER DISTTURBANCE IN EASTERN TEXAS AND WESTERN LOUISIANA WILL MOVE EAST AND MAY BRING SOME ACTIVE WEATHER TO PARTS OF ALABAMA BY EARLY SATURDAY MORNING.
Special weather statement, Apr 27, 10:16 PM CDT, 3 hours 32 minutes before
ALZ004>009-011-013-280430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1015 PM CDT FRI APR 27 1990 RAIN... HEAVY AT TIMES CONTINUED ACROSS WESTERN ALABAMA. AT 1010 PM CDT THE HEAVIEST RAIN EXTENDED FROM TUSCALOOSA DOWN TO THE DEMOPOLIS/LINDEN AREAS. THIS HEAVY RAIN COULD PRODUCE SOME LOCALIZED FLOODING IN LOW LYING AREAS. THE RAIN WAS MOVING TO THE NORTHEAST AT 35 MPH. MOTORISTS TONIGHT WILL HAVE TO REDUCE THEIR SPEED DUE TO THE LIMITED VISIBILITY BEING CAUSED BY THE HEAVY RAIN. MOTORISTS SHOULD ALSO BE ALERT FOR POSSIBILITY OF LOCALIZED STREET FLOODING. EVEN THOUGH THERE ARE NO WATCHES IN EFFECT AT THIS TIME...A STRONG DISTURBANCE NOW TRIGGERING RATHER VIGOROUS THUNDERSTORMS IN EASTERN TEXAS AND LOUISIANA WILL MOVE EAST AND LIKELY EFFECT PARTS OF ALABAMA BY SUNRISE.
Special weather statement, Apr 27, 10:59 PM CDT, 2 hours 49 minutes before
ALZ004>009-011-013-280510- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1057 PM CDT FRI APR 27 1990 HEAVY RAIN CONTINUED ACROSS WESTERN ALABAMA. AT 1055 PM CDT THE HEAVIEST RAIN WAS OCCURRING OVER TUSCALOOSA COUNTY MOVING INTO WALKER AND FAYETTE COUNTIES. THIS RAIN WAS MOVING TO THE NORTH AT 45 MPH. THE AREA OF RAIN HAS DIMINISHED IN SIZE. HOWEVER... SOME LOCALIZED FLOODING IN LOW LYING AREAS IS POSSIBLE. MOTORISTS SHOULD ALSO BE ALERT FOR POSSIBILITY OF LOCALIZED STREET FLOODING. EVEN THOUGH THERE ARE NO WATCHES IN EFFECT AT THIS TIME...A STRONG DISTURBANCE NOW TRIGGERING RATHER VIGOROUS THUNDERSTORMS IN EASTERN TEXAS AND LOUISIANA WILL MOVE EAST AND LIKELY EFFECT PARTS OF ALABAMA BY SUNRISE.
Special weather statement, Apr 28, 12:03 AM CDT, 1 hour 45 minutes before
ALZ004>009-011-013-280610- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1205 AM CDT SAT APR 28 1990 MODERATE TO HEAVY RAIN CONTINUED ACROSS WESTERN ALABAMA. AT 1155 PM CDT THE HEAVIEST RAIN WAS OCCURRING OVER TUSCALOOSA COUNTY AND IN BIBB COUNTY NEAR CENTERVILLE. THIS AREA OF RAIN WAS MOVING TO THE NORTH AT 40 MPH. THE AREA OF RAIN HAS MOVED INTO EAST CENTRAL ALABAMA BUT THE HEAVIER RAIN REMAINS IN WESTERN ALABAMA AT THIS TIME. HEAVY RAIN MAY CAUSE SOME LOCALIZED FLOODING IN LOW LYING ARES. MOTORISTS SHOULD ALSO BE ALERT FOR POSSIBILITY OF LOCALIZED STREET FLOODING. EVEN THOUGH THERE ARE NO WATCHES IN EFFECT IN ALABAMA AT THIS TIME... THERE IS A TORNADO WATCH IN EFF ECT UNTIL 4 AM CDT SATURDAY MORNING FOR MOST OF MISSISSIPPI. THESE STORMS COULD AFFECT PORTIONS OF ALABAMA BY SUNRISE.
Nearby
Flash Flood Warnings in Alabama, 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.