Alert archive / Alabama / Flash Flood Warnings in 2002
Flash Flood Warning 26, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Jul 12, 2002, 10:17 PM CDT for Jefferson County, Alabama. It was in force for 3 hr. 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 12, 2002, 10:17 PM CDT (03:17 UTC)
- Expired
- Jul 13, 2002, 1:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Jefferson County, AL
The radar
The Birmingham radar (KBMX), 44 km from the middle of the area, began a volume at 03:16 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 00:00Z, 3.3 hours before the alert went out and 43 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
- 481 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 660 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 11 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 130317 FFWBHM ALC073-130615- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 1015 PM CDT FRI JUL 12 2002 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * FLASH FLOOD WARNING FOR... JEFFERSON COUNTY IN ALABAMA * UNTIL 115 AM CDT * THE FLOODING POTENTIAL REMAINS HIGHEST BETWEEN INTERSTATE 59 AND INTERSTATE 65...INCLUDING BIRMINGHAM...TARRANT...PINSON...KETONA... AND CENTERPOINT. AT 1015 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES MOST OF THE HEAVY RAIN HAS PUSHED EAST AND OUT OF JEFFERSON COUNTY. BUT ADDITIONAL THUNDERSTORMS WERE DEVELOPING IN WESTERN JEFFERSON COUNTY...GENERALLY FROM NORTH JOHNS TO WEST JEFFFERSON. THESE STORMS WILL PUSH EASTWARD AND EFFECT THE FLOODED AREAS BETWEEN 11 PM AND 1 AM. AN ADDITIONAL HALF TO ONE INCH COULD OCCUR. MANY LOCAL STREAMS...CREEKS...AND ROADWAYS REMAIN FLOODED. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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.
1 follow-up statement
000 WGUS74 KBMX 130415 FFSBHM ALC073-130430- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 1107 PM CDT FRI JUL 12 2002 ...A FLASH FLOOD WARNING CONTINUES FOR JEFFERSON COUNTY UNTIL 115 AM... AT 1107 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED MODERATE RAINFALL CONTINUING ACROSS PARTS OF EASTERN JEFFERSON COUNTY...AND AN AREA OF HEAVY RAIN FROM NEAR NORTH JOHNS...TO NEAR SYLVAN SPRINGS. THE RAIN AREAS WERE MOVING EAST NORTHEAST AROUND 20 MPH. ADDITIONAL RAINFALL AMOUNTS UP TO A HALF INCH ARE POSSIBLE EAST OF INTERSTATE 65...WITH ISOLATED ONE TO TWO INCH AMOUNTS IN WESTERN PARTS OF THE COUNTY. DOPPLER RADAR INDICATES FROM ONE TO FIVE INCHES OF RAINFALL BETWEEN INTERSTATE 65 AND INTERSTATE 59 SINCE THIS AFTERNOON...INCLUDING BIRMINGHAM...TARRANT...PINSON...CENTER POINT...HUFFMAN...AND ROEBUCK. MANY AREA STREAMS...CREEKS...AND ROADS REMAIN FLOODED. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 7:28 PM CDT | Flash Flood Warning | BMX | Jefferson | 3 hr |
| Jul 12, 7:56 PM CDT | Severe Thunderstorm Warning | BMX | Autauga | 34 min |
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.