Alert archive / Alabama / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 366, NWS Birmingham, AL
NWS Birmingham, AL issued this severe thunderstorm warning at Jun 5, 1999, 3:49 AM CDT for Blount County, Alabama. It was in force for 46 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
- Jun 5, 1999, 3:49 AM CDT (08:49 UTC)
- Expired
- Jun 5, 1999, 4:35 AM CDT
- In force
- 46 min
- Issued by
- NWS Birmingham, AL
- Area
- Whole counties
County Blount County, AL
The radar
The Birmingham radar (KBMX), 92 km from the middle of the area, began a volume at 08:48 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 5, 2:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 8.8 hours before the alert went out and 91 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
- 3062 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1126 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBHM 050849 SVRBHM ALC009-050935- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BIRMINGHAM AL 349 AM CDT SAT JUN 5 1999 THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED...A * SEVERE THUNDERSTORM WARNING FOR... BLOUNT COUNTY...IN NORTHERN ALABAMA... * UNTIL 435 AM CDT. * AT 346 AM CDT... WEATHER RADAR CONTINUED TO SHOW A LINE OF SEVERE THUNDERSTORMS...FROM NEAR BLOUNT SPRINGS...TO ONEONTA. THIS LINE WAS MOVING SOUTH AT 25 TO 30 MPH...AND WILL AFFECT THE REMAINDER OF SOUTHERN BLOUNT COUNTY THROUGH 4:30 AM. THIS WARNING EXTENDS THE PREVIOUS WARNING FOR BLOUNT COUNTY WHICH WAS IN EFFECT UNTIL 3:55 AM. LARGE HAIL AND DAMAGING WINDS ARE LIKELY WITH THIS STORM. GO INSIDE A STURDY BUILDING ...AND STAY AWAY FROM WINDOWS!
What forecasters said that day
The local office's own words before this severe thunderstorm 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, Jun 5, 2:34 AM CDT, 1 hour 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM
234 AM CDT SAT JUN 05 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0210 AM ANTIOCH AL .75 INCH HAIL
06/05/99 LAUDERDALE DIME SIZE HAIL FELL IN
ANTIOCH. REPORTED BY EMA.
0215 AM FLORENCE AL .75 INCH HAIL
06/05/99 LAUDERDALE DIME SIZE HAIL FELL IN
FLORENCE. REPORTED BY EMA.
0223 AM FLORENCE AL .75 INCH HAIL
06/05/99 LAUDERDALE DIME SIZE HAIL REPORTED
NEAR FLORENCE. REPORTED BY
EMA.Special weather statement, Jun 5, 3:38 AM CDT, 11 minutes before
ALZ001>003-005-006-009-050910- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BIRMINGHAM AL 338 AM CDT SAT JUN 5 1999 THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR THE FOLLOWING COUNTIES... IN ALABAMA ...LAUDERDALE... COLBERT... FRANKLIN... LIMESTONE... MADISON ...JACKSON THE THREAT OF SEVERE WEATHER HAS MOVED SOUTH OF THE AREA BUT SCATTERED SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE THROUGH THE EARLY MORNING HOURS. z
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 1:37 AM CDT | Severe Thunderstorm Warning | BMX | Lauderdale, Limestone | 63 min |
| Jun 5, 1:54 AM CDT | Severe Thunderstorm Warning | BMX | Madison | 61 min |
| Jun 5, 2:18 AM CDT | Severe Thunderstorm Warning | BMX | Colbert, Lawrence | 47 min |
| Jun 5, 2:43 AM CDT | Severe Thunderstorm Warning | BMX | Marshall, Morgan | 62 min |
| Jun 5, 2:48 AM CDT | Severe Thunderstorm Warning | BMX | Franklin | 47 min |
| Jun 5, 2:52 AM CDT | Severe Thunderstorm Warning | BMX | Madison | 33 min |
| Jun 5, 2:57 AM CDT | Severe Thunderstorm Warning | BMX | Cullman | 48 min |
| Jun 5, 3:09 AM CDT | Severe Thunderstorm Warning | BMX | Blount | 46 min |
| Jun 5, 3:41 AM CDT | Severe Thunderstorm Warning | BMX | Cullman | 44 min |
| Jun 5, 4:02 AM CDT | Severe Thunderstorm Warning | BMX | Jefferson, St. Clair | 63 min |
| Jun 5, 4:11 AM CDT | Severe Thunderstorm Warning | BMX | Calhoun | 49 min |
| Jun 5, 4:20 AM CDT | Severe Thunderstorm Warning | BMX | Walker | 45 min |
| Jun 5, 4:21 AM CDT | Severe Thunderstorm Warning | BMX | Talladega | 49 min |
| Jun 5, 4:30 AM CDT | Severe Thunderstorm Warning | BMX | Shelby | 45 min |
| Jun 5, 5:08 PM CDT | Severe Thunderstorm Warning | BMX | Russell | 47 min |
| Jun 5, 5:19 PM CDT | Severe Thunderstorm Warning | BMX | Barbour | 66 min |
| Jun 5, 5:37 PM CDT | Severe Thunderstorm Warning | BMX | Bullock | 63 min |
| Jun 5, 6:27 PM CDT | Severe Thunderstorm Warning | BMX | Talladega | 48 min |
| Jun 5, 6:46 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Chilton | 49 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 1999Every severe thunderstorm warning in 1999
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.