Alert archive / Alabama / Flash Flood Warnings in 2002
Flash Flood Warning 23, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Jul 11, 2002, 6:53 PM CDT for Blount County, Jefferson County, Alabama. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 11, 2002, 6:53 PM CDT (23:53 UTC)
- Expired
- Jul 11, 2002, 8:45 PM CDT
- In force
- 112 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Blount County, AL, Jefferson County, AL
The radar
The Birmingham radar (KBMX), 66 km from the middle of the area, began a volume at 23:54 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, 11.9 hours before the alert went out and 65 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
- 1620 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 882 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 45 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 KBMX 112353 FFWBHM ALC009-073-120145- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 652 PM CDT THU JUL 11 2002 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * FLASH FLOOD WARNING FOR... BLOUNT COUNTY IN ALABAMA JEFFERSON COUNTY IN ALABAMA * UNTIL 845 PM CDT * AT 652 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER CENTER POINT...TO GARDENDALE...TO ARKADELPHIA ROAD AREA. THESE SHOWERS ARE SLOWLY DRIFTING SOUTHWARD. HEAVY RAINFALL HAS CAUSED A MUD SLIDE ACROSS ARKADELPHIA ROAD IN JEFFERSON COUNTY...MAKING ROAD IMPASSABLE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS...ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. CALL 1-800-856-0758 TO REPORT SEVERE WEATHER. $$ JBW
2 follow-up statements
000 WGUS74 KBMX 120057 FFSBHM ALC009-073-120145- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 757 PM CDT THU JUL 11 2002 ...FLASH FLOOD WARNING STILL IN EFFECT FOR JEFFERSON AND BLOUNT COUNTIES THROUGH 845 PM... A FLASH FLOOD WARNING IS STILL IN EFFECT FOR JEFFERSON AND BLOUNT COUNTIES THROUGH 845 PM. AS OF 757 PM...JEFFERSON COUNTY EMA OFFICIALS REPORTED THAT ONE HALF LANE OF ARKADELPHIA ROAD IN NORTHEASTERN JEFFERSON COUNTY STILL REMAINED CLOSED DO TO A MUDSLIDE REPORTED EARLIER THIS EVENING. RAIN CONTINUES TO FALL IN THIS AREA... WITH DOPPLER RADAR ESTIMATES OF AROUND ONE QUARTER OF AN INCH AN HOUR PRESENTLY...AND EXPECTED TO CONTINUE OVER THESE AREAS THROUGH THE WARNING PERIOD. SATELLITE PRECIPITATION ESTIMATES SHOW BETWEEN 3 TO 4 INCHES OF RAINFALL HAVE FALLEN IN THESE AREAS OVER THE PAST FEW HOURS. ALTHOUGH RAINFALL RATES HAVE DECREASED SIGNIFICANTLY...ANY ADDITIONAL RAINFALL...WITH SATURATED GROUND CONDITIONS... AND SOME LOCATIONS REPORTING STANDING WATER ON ROADWAYS...COULD CASE ADDITIONAL FLOODING IN JEFFERSON AND BLOUNT COUNTIES. THUS...THE FLASH FLOOD WARNING WILL STILL CONTINUE THROUGH 845 PM. EXERCISE CAUTION WHILE DRIVING ON AREA ROADWAYS. DO NOT CROSS ROADS THAT ARE COVERED WITH WATER. IF POSSIBLE...USE HIGHER TERRAIN ROUTES TO REACH DESIRED DESTINATIONS. PLEASE STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND NEWS MEDIA TO GET ACCESS TO THE LATEST NATIONAL WEATHER SERVICE FOR FURTHER STATEMENTS ON THIS FLOODING EVENT. $$ JBW
000 WGUS74 KBMX 120153 FFSBHM ALC009-073-120200- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 852 PM CDT THU JUL 11 2002 ...FLASH FLOOD WARNING FOR JEFFERSON AND BLOUNT COUNTIES HAS EXPIRED... A FLASH FLOOD WARNING THAT WAS IN EFFECT FOR JEFFERSON AND BLOUNT COUNTIES THROUGH 845 PM HAS EXPIRED. AS OF 852 PM...SHOWERS AND THUNDERSTORMS THAT CAUSED THE PREVIOUS FLOODING HAVE DISSIPATED... AND ONLY VERY LIGHT RAINFALL IS FALLING OVER NORTHEASTERN JEFFERSON COUNTY. THIS RAINFALL WILL TOTALLY DISSIPATE OVER THE NEXT HOUR. THE THREAT FOR FLOODING IN THESE LOCATIONS HAVE SIGNIFICANTLY DECREASED. JEFFERSON COUNTY EMA OFFICIALS REPORTED THAT COUNTY WORKERS HAVE CLEARED ARKADELPHIA ROAD OF PREVIOUS MUD SLIDE DEBRIS...AND THE ROAD IS NOW OPEN. HOWEVER...SOME PONDING OF WATER ON ISOLATED LOCATIONS ON AREA ROADWAYS IS STILL POSSIBLE. REMEMBER...DO NOT CROSS ROADS THAT ARE COVERED WITH WATER. IF POSSIBLE...USE HIGHER TERRAIN ROUTES TO REACH DESIRED DESTINATIONS. $$ JBW
Nearby
Flash Flood Warnings in Alabama, 2002Every flash flood warning in 2002
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.