Alert archive / Alabama / Flash Flood Warnings in 1989
Flash Flood Warning 13, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Jun 21, 1989, 12:23 AM CDT for Shelby County, Alabama. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1989, 12:23 AM CDT (05:23 UTC)
- Expired
- Jun 21, 1989, 2:30 AM CDT
- In force
- 2 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Shelby 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, 5.4 hours before the alert went out and 64 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
- 643 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1272 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 22 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 KBHM 210527
FFWBHM
ALC117-210730-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1223 AM CDT WED JUN 21 1989
THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 230 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN NORTH ALABAMA
...SHELBY
HEAVY RAINS CONTINUE TO SPREAD SLOWLY NORTHEAST OVER SHELBY COUNTY AND
ADDITIONAL RAINFALL AMOUNTS OF MORE THAN TWO INCHES AREA POSSIBLE BY
2AM WITH EXTENSIVE FLOODING OF LOW AREAS .
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 WATE#RS. 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, Jun 20, 7:16 PM CDT, 5 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 715 PM CDT TUE JUN 20 1989 THUNDERSTORMS PRODUCING HEAVY RAIN WERE OCCURRING OVER SECTIONS OF NORTH AND CENTRAL ALABAMA. AT 715 PM CDT THE STRONGEST STORMS WERE SCATTERED ALONG A LINE FROM CHILTON COUNTY TO THE SYLACAUGA/CHILDERSBURG AREA TO NEAR PELL CITY ...THEN ON UP TO BETWEEN ANNISTON AND GADSDEN. OTHER STORMS WERE OCCURRING NEAR ONEONTA IN BLOUNT COUNTY AND JUST WEST OF BIRMINGHAM. SINCE THE THUNDERSTORMS WERE REMAINING NEARLY STATIONARY...THE HEAVY DOWNPOURS MAY CAUSE LOCALIZED FLOODING OF STREETS AND LOW LYING AREAS. WIND GUSTS AROUND 40 MPH...DEADLY CLOUD TO GROUND LIGHTNING AND POSSIBLY SOME HAIL MAY OCC^UR WITH THE STRONGER STORMS. THE STORMS SHOULD BEGIN TO DIMINISH AFTER SUNSET.
Special weather statement, Jun 20, 7:16 PM CDT, 5 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 715 PM CDT TUE JUN 20 1989 ...FLASH FLOOD WATCH FOR EAST CENTRAL AND MUCH OF SOUTH ALABAMA FOR TONIGHT... WEATHER RADAR AT MONTGOMERY AT 710PM CDT SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN LINED UP FROM MAPLESVILLE TO JUST WEST OF SYLACAUGA NORTHWARD. OTHER THUNDERSTORMS WERE IN A NARROW BAND FROM UNION SPRINGS TO OPP AND FLORALA ALABAMA. THESE THUNDERSTORMS WERE DRIFTING EAST NORTHEAST. ALONG WITH THE HEAVY RAIN THE THUNDERSTORMS MAY HAVE GUSTY SURFACE WINDS...DANGEROUS LIGHTNING...AND HAIL. REMEMBER THE GROUND IS ALREADY SOAKED IN MANY AREAS AND DUE TO THE SLOW MOVEMENT OF THESE STORMS FLASH FLOODINS OF LOW SPOTS...\STREETS...AND UNDERPASSES IS VERY LIKELY.
Special weather statement, Jun 20, 8:42 PM CDT, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 839 PM CDT TUE JUN 20 1989 THUNDERSTORMS PRODUCING HEAVY RAIN AND CLOUD TO GROUND LIGHTNING WERE OCCURRING ACROSS CENTRAL ALABAMA. AT 839 PM CDT THE STRONGEST STORMS WERE LOCATED NEAR MAPLESVILLE ALONG THE CHILTON/AUTAUGA COUNTY LINE AND TO THE WEST OF ANNISTON NEAR PELL CITY. SINCE THE THUNDERSTORMS WERE MOVING SLOWLY TO THE EAST NORTHEAST...THE HEAVY DOWNPOURS MAY CAUSE LOCALIZED FLOODING OF STREETS AND LOW LYING AREAS. BESIDES THE HEAVY RAIN AND LIGHTNING...THE STORMS MAY ALSO BE ACCOMPANIED BY GUSTY WINDS AND SOME HAIL. THE STORMS WILL LIKELY MAINTAIN THIER STRENGTH FOR THE HEXT HOUR OR TWO BEFORE DIMINISHING.
Special weather statement, Jun 20, 9:16 PM CDT, 3 hours 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 915 PM CDT TUE JUN 20 1989 THUNDERSTORMS HAVE DEVELOPED ACROSS SECTIONS OF JEFFERSON AND SHELBY COUNTIES. AT 915 PM CDT THE STORMS WERE LOCATED ALONG THE JEFFERSON/SHELBY COUNTY LINE. THE STRONGEST STORMS WERE NEAR SUCH AREAS AS CAHABA HEIGHTS ...INVERNESS...LEEDS AND PELHAM. OTHER STORMS WERE OCCURRING OVER ST CLAIR COUNTY. SINCE THE THUNDERSTORMS WERE MOVING SLOWLY TO THE E5AST NORTHEAST...THE HEAVY DOWNPOURS MAY CAUSE LOCALIZED FLOODING OF STREETS AND LOW LYING AREAS. THE STORMS WERE ALSO PRODUCING CLOUD TO GROUND LIGHTNING STRIKES. GUSTY WINDS AND SOME HAIL MAY ALSO ACCOMPANY THE STORMS.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 11:41 PM CDT | Flash Flood Warning | BMX | St. Clair | 2 hr |
| Jun 21, 2:23 PM CDT | Severe Thunderstorm Warning | BMX | Colbert | 67 min |
| Jun 21, 3:33 PM CDT | Severe Thunderstorm Warning | BMX | Perry | 42 min |
| Jun 21, 4:18 PM CDT | Severe Thunderstorm Warning | BMX | Chilton, Perry | 42 min |
| Jun 21, 4:35 PM CDT | Severe Thunderstorm Warning | BMX | Madison | 55 min |
Nearby
Flash Flood Warnings in Alabama, 1989Every flash flood warning in 1989
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.