Alert archive / Alabama / Flash Flood Warnings in 1990
Flash Flood Warning 58, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at May 20, 1990, 1:22 AM CDT for Marion County, Alabama. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- May 20, 1990, 1:22 AM CDT (06:22 UTC)
- Expired
- May 20, 1990, 3:30 AM CDT
- In force
- 2 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Marion 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, 6.4 hours before the alert went out and 152 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
- 607 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1174 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 200626 FFWBHM ALC093-200830- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 122 AM CDT SUN MAY 20 1990 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 330 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH ALABAMA ...MARION COUNTY HEAVY RAIN HAS FALLEN OVER MARION COUNTY DURING THE PAST SEVERAL HOURS AND FLOODING HAS BEEN REPORTED IN THE HAMILTON AREA. STRONG THUNDERSTORMS WILL CONTINUE TO PRODUCE VERY HEAVY RAINFALL OVER THE COUNTY FOR AT LEAST THE NEXT HOUR AND ADDITIONAL FLASH FLOODING IS LIKELY. SOME BUILDINGS WERE REPORTED TO HAVE WATER IN THEM IN THE CITY OF HAMILTON AROUND 115 AM. D DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
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 19, 7:23 PM CDT, 5 hours 59 minutes before
ALZ010-014-017-200115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 718 PM CDT SAT MAY 19 1990 AT 707 PM CDT WEATHER RADAR AT MONTGOMERY SHOWED SCATTERED MASSES OF THUNDERSTORMS WITHIN AREAS OF LIGHT RAIN OVER DALLAS...WILCOX...BUTLER ...LOWNDES AND SOUTH MONTGOMERY COUNTY. THE RAIN AND THUNDERSTORMS ARE MOVING NORTHEAST AT ABOUT 25 MILES AN HOUR. SOME LIGHT HAIL HAS BEEN REPORTED IN OTHER COUNTIES FROM THIS AFTERNOON'S THUNDERSTORMS. RESIDENTS IN THE FOREMENTIONED AREAS CAN EXPECT BRIEF HEAVY RAINS...DANGEROUS LIGHTNING AND SOME GUSTY WINDS. SNELL
Special weather statement, May 19, 8:12 PM CDT, 5 hours 10 minutes before
ALZ010-014-200215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 807 PM CDT SAT MAY 19 1990 THUNDERSTORMS AND LIGHT RAIN CONTINUED OVER SOUTH CENTRAL ALABAMA THIS EVENING. AT 800 PM CDT WEATHER RADAR AT MONTGOMERY DETECTED A BAND OF THUNDERSTORMS FROM NORTHWEST DALLAS COUNTY TO NORTHWEST LOWNDES COUNTY. THE BAND OF THUNDERSTORMS WAS WITHIN AN AREA OF LIGHT RAIN THAT STRETCHED FROM WETUMPKA TO BEYOND SELMA AND AS FAR SOUTH AS HAYNEVILLE. THE THUNDERSTORMS AND LIGHT RAIN WERE MOVING NORTHEAST AT ABOUT 25 MILES AN HOUR. RESIDENTS IN THE PATH OF THESE THUNDERSTORMS CAN EXPECT BRIEF HEAVY RAINS DANGEROUS LIGHTNING AND SOME GUSTY WINDS. SNELL
Special weather statement, May 19, 9:09 PM CDT, 4 hours 13 minutes before
ALZ010-014-200300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MONTGOMERY AL 905 PM CDT SAT MAY 19 1990 THUNDERSTORMS HAVE DIMINISHED IN SOUTH CENTRAL ALABAMA. AT 900 PM CDT WEATHER RADAR AT MONTGOMERY SHOWED A LARGE MASS OF LIGHT RAIN OVER NORTHEAST DALLAS COUNTY...AUTAUGA COUNTY AND WESTERN ELMORE COUNTY. AT THAT TIME ONLY ONE THUNDERSTORM REMAINED AND IT WAS LOCATED JUST EAST OF SELMA. THE THUNDERSTORM WAS MOVING SLOWLY NORTCH AT ABOUT 10 MILES AN HOUR. THE RAIN WAS MOVING NORTHEAST AT ABOUT 25 MILES AN HOUR. THIS THUNDERSTORM WAS PRODUCING DANGEROUS LIGHTNING...VERY HEAVY RAIN AND SOME GUSTY WINDS. SNELL
Special weather statement, May 19, 10:59 PM CDT, 2 hours 23 minutes before
ALZ001>005-200700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1055 PM CDT SAT MAY 19 1990 ...SHOWERS AND THUNDERSTORMS CONTINUE OVER NORTHERN ALABAMA... AT 1040 PM CDT THE RADAR IN CENTERVILLE INDICATED A VERY HEAVY THUNDERSTORM OVER SOUTHEASTERN CULLMAN COUNTY NEAR GARDEN CITY. HEAVY RAIN AND FREQUENT LIGHTNING WERE BEING REPORTED IN THE CULLMAN AREA. THE STORM WAS MOVING NORTHEAST AROUND 30 MPH. RESIDENTS IN CULLMAN AND BLOUNT COUNTIES SHOULD REMAIN ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS THIS STORM MAY PRODUCE STRONG GUSTY WINDS...HEAVY RAIN AND POSSIBLY SOME SMALL HAIL. ELSEWHERE IN NORTHERN ALABAMA...SHOWERS AND THUNDERSTORMS WERE WIDESPREAD NORTH OF A LINE FROM MARION COUNTY TO DE KALB COUNTY. THE STRONGEST STORMS WERE FROM SOUTHERN LAWRENCE COUNTY TO JACKSON COUNTY. THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...BRIEF PERIODS OF HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THE ACTIVITY WAS MOVING EAST NORTHEAST AT 30 MPH.
Special weather statement, May 20, 1:01 AM CDT, 21 minutes before
ALZ001>005-200800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1255 AM CDT SUN MAY 20 1990 ...STRONG THUNDERSTORMS CONTINUE OVER NORTHERN ALABAMA... AT 1250 AM CDT RADAR INDICATED A EAST-WEST BAND OF STRONG THUNDERSTORMS WITH VERY HEAVY RAINFALL FROM HAMILTON IN MARION COUNTY EASTWARD ACROSS NORTHERN LAMAR..WINSTON..WALKER..CULLMAN AND BLOUNT COUNTIES. THE BAND OF STORMS HAD A SLIGHT SOUTHWRD DRIFT WHILE THE INDIVIDUAL THUNDERSTORMS WERE MOVING EAST AT 30 MPH. SMALL HAIL HAS BEEN REPORTED IN THE THUNDERSTORMS WHICH MOVED INTO MARION COUNTY. GUSTY WINDS...INTENSE LIGHTNING AND HEAVY RAINFALL CAN ALSO BE EXPECTED WITH THESE STORMS THE NEXT SEVERAL HOURS. MOTORIST TRA*VELING ACROSS NORTH ALABAMA THIS MORNING SHOULD USE EXTREME CAUTION SINCE ROADWAYS CAN BECOME QUICKLY COVERED WITH SEVERAL INCHES OF WATER.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 10:06 AM CDT | Severe Thunderstorm Warning | BMX | Fayette, Lamar | 69 min |
| May 20, 10:36 AM CDT | Severe Thunderstorm Warning | BMX | Walker | 54 min |
| May 20, 11:03 AM CDT | Severe Thunderstorm Warning | BMX | Blount, Cullman | 57 min |
| May 20, 11:08 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 67 min |
| May 20, 11:12 AM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 48 min |
| May 20, 11:47 AM CDT | Severe Thunderstorm Warning | BMX | St. Clair, Shelby | 43 min |
| May 20, 11:47 AM CDT | Severe Thunderstorm Warning | BMX | Etowah | 43 min |
| May 20, 11:55 AM CDT | Severe Thunderstorm Warning | BMX | Marshall | 35 min |
| May 20, 12:15 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 45 min |
| May 20, 12:28 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Talladega | 62 min |
| May 20, 12:28 PM CDT | Severe Thunderstorm Warning | BMX | Cherokee, Etowah | 62 min |
| May 20, 12:45 PM CDT | Severe Thunderstorm Warning | BMX | Clay, Cleburne | 60 min |
| May 20, 1:07 PM CDT | Severe Thunderstorm Warning | BMX | Randolph | 53 min |
| May 20, 3:29 PM CDT | Severe Thunderstorm Warning | BMX | Pickens, Tuscaloosa | 46 min |
| May 20, 4:07 PM CDT | Tornado Warning | BMX | Tuscaloosa | 53 min |
| May 20, 4:57 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 63 min |
| May 20, 6:05 PM CDT | Severe Thunderstorm Warning | BMX | Bibb | 55 min |
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.