Alert archive / Alabama / Flash Flood Warnings in 1998
Flash Flood Warning 43, NWS Birmingham, AL
NWS Birmingham, AL issued this flash flood warning at Apr 18, 1998, 6:35 PM CDT for Blount County, Marshall County, Alabama. It was in force for 4 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
- Apr 18, 1998, 6:35 PM CDT (23:35 UTC)
- Expired
- Apr 18, 1998, 10:40 PM CDT
- In force
- 4 hr
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
Counties Blount County, AL, Marshall County, AL
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 11.6 hours before the alert went out and 115 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1180 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 114 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 182335 FFWBHM ALC009-095-190340- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 635 PM CDT SAT APR 18 1998 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A * FLASH FLOOD WARNING FOR... BLOUNT COUNTY... IN NORTHERN ALABAMA MARSHALL COUNTY... IN NORTHERN ALABAMA * UNTIL 1040 PM CDT * AT 635 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS MOVING ACROSS MARSHALL AND BLOUNT COUNTIES.... MOVING NORTHEAST AT 35 MPH.. * MORE STORMS WILL MOVE ACROSS THE AREA THIS EVENING...PRODUCING THE POSSIBILITY OF FLASH FLOODING. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!
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
Local storm report, Apr 18, 12:54 PM CDT, 5 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
1254 PM CDT SAT APR 18 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1131 AM BIRMINGHAM AL .75 INCH HAIL
04/18/98 JEFFERSON REPORTED BY HAM RADIO,
DIME SIZE HAIL IN THE
BIRMINGHAM JEFFERSON CIVIC
CENTER AREA.
1140 AM BIRMINGHAM AL .75 INCH HAIL
04/18/98 JEFFERSON REPORTED BY HAM RADIO, IN
THE UNIVERSITY HOSPITAL
AREA OF DOWNTOWN
BIRMINGHAM, DIME SIZE
HAIL.
1140 AM ROEBUCK PLAZA AL .75 INCH HAIL
04/18/98 JEFFERSON REPORTED BY HAM RADIO,
DIME SIZE HAIL PARTIALLY
COVERING THE GROUND IN
ROEBUCK AREA
1142 AM BIRMINGHAM ARPT AL .75 INCH HAIL
04/18/98 JEFFERSON DIME SIZE HAIL, REPORTED
NEAR THE BIRMINGHAM
AIRPORT, REPORTED BY HAM
RADIO OPERATORS.Local storm report, Apr 18, 12:54 PM CDT, 5 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
1254 PM CDT SAT APR 18 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1131 AM BIRMINGHAM AL .75 INCH HAIL
04/18/98 JEFFERSON REPORTED BY HAM RADIO,
DIME SIZE HAIL IN THE
BIRMINGHAM JEFFERSON CIVIC
CENTER AREA.
1140 AM BIRMINGHAM AL .75 INCH HAIL
04/18/98 JEFFERSON REPORTED BY HAM RADIO, IN
THE UNIVERSITY HOSPITAL
AREA OF DOWNTOWN
BIRMINGHAM, DIME SIZE
HAIL.
1140 AM ROEBUCK PLAZA AL .75 INCH HAIL
04/18/98 JEFFERSON REPORTED BY HAM RADIO,
DIME SIZE HAIL PARTIALLY
COVERING THE GROUND IN
ROEBUCK AREA
1142 AM BIRMINGHAM ARPT AL .75 INCH HAIL
04/18/98 JEFFERSON DIME SIZE HAIL, REPORTED
NEAR THE BIRMINGHAM
AIRPORT, REPORTED BY HAM
RADIO OPERATORS.The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 9:21 PM CDT | Severe Thunderstorm Warning | BMX | Pike | 34 min |
| Apr 17, 9:53 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 47 min |
| Apr 17, 11:40 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes, Montgomery | 50 min |
| Apr 18, 1:38 AM CDT | Severe Thunderstorm Warning | BMX | Sumter | 62 min |
| Apr 18, 9:05 AM CDT | Severe Thunderstorm Warning | BMX | Greene, Sumter | 45 min |
| Apr 18, 9:47 AM CDT | Severe Thunderstorm Warning | BMX | Greene | 33 min |
| Apr 18, 10:38 AM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 32 min |
| Apr 18, 10:58 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 62 min |
| Apr 18, 12:00 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 45 min |
| Apr 18, 12:10 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 45 min |
| Apr 18, 5:13 PM CDT | Tornado Warning | BMX | Calhoun | 32 min |
| Apr 18, 5:24 PM CDT | Severe Thunderstorm Warning | BMX | Tuscaloosa | 46 min |
| Apr 18, 5:37 PM CDT | Severe Thunderstorm Warning | BMX | Dallas | 18 min |
| Apr 18, 5:42 PM CDT | Tornado Warning | BMX | Cherokee | 48 min |
| Apr 18, 5:44 PM CDT | Severe Thunderstorm Warning | BMX | Chilton | 46 min |
| Apr 18, 6:03 PM CDT | Tornado Warning | BMX | Chilton | 47 min |
| Apr 18, 6:15 PM CDT | Flash Flood Warning | BMX | Jackson | 4 hr |
| Apr 18, 6:16 PM CDT | Severe Thunderstorm Warning | BMX | Jefferson | 49 min |
| Apr 18, 6:20 PM CDT | Tornado Warning | BMX | Jackson | 50 min |
| Apr 18, 6:20 PM CDT | Tornado Warning | BMX | Dallas | 50 min |
| Apr 18, 6:26 PM CDT | Tornado Warning | BMX | Cherokee | 19 min |
| Apr 18, 6:48 PM CDT | Tornado Warning | BMX | Perry | 62 min |
| Apr 18, 6:52 PM CDT | Tornado Warning | BMX | Shelby | 63 min |
| Apr 18, 6:53 PM CDT | Tornado Warning | BMX | DeKalb | 47 min |
| Apr 18, 6:56 PM CDT | Tornado Warning | BMX | Etowah | 49 min |
Nearby
Flash Flood Warnings in Alabama, 1998Every flash flood warning in 1998
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.