Alert archive / Alabama / Tornado Warnings in 1999

Tornado Warning 55, NWS Birmingham, AL

May 7, 1999Tallapoosa County, Alabama

NWS Birmingham, AL issued this tornado warning at May 7, 1999, 2:33 PM CDT for Tallapoosa County, Alabama. It was in force for 32 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
May 7, 1999, 2:33 PM CDT (19:33 UTC)
Expired
May 7, 1999, 3:05 PM CDT
In force
32 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Tallapoosa County, AL

The radar

The Maxwell AFB radar (KMXX), 36 km from the middle of the area, began a volume at 19:34 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.

IssuedProductOfficeLasted
May 7, 2:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.6 hours before the alert went out and 98 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.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 1999-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 1999-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1200 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

999 
WFUS1 KBHM 071935 RRA
TORBHM
ALC123-072005-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
233 PM CDT FRI MAY 7 1999

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED...A

* TORNADO WARNING FOR...
  SOUTHEASTERN TALLAPOOSA COUNTY... IN EAST CENTRAL ALABAMA...

* UNTIL 305 PM CDT.

* AT 232 PM CDT... WEATHER RADAR DETECTED A SEVERE THUNDERSTORM OVER
TALLAPOOSA COUNTY JUST NORTH THRONTON.  THE STORM WAS MOVING EAST
NORTHEAST AT 30 MPH.

* THE TORNADO WILL AFFECT THE CAMP HILL AREA.  THIS EXTENDS THE
PREVIOUS WARNING.

GO TO THE BASEMENT...OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

What forecasters said that day

The local office's own words before this tornado 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 7, 10:09 AM CDT, 4 hours 24 minutes before
ALZ001>050-GAZ089-090-102-120-080300-

HAZARDOUS WEATHER OUTLOOK
FOR NORTH/CENTRAL AL AND WEST CENTRAL GA
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1009 AM CDT FRI MAY 7 1999

THE WEAK FRONT ACROSS THE SOUTHEAST CORNER OF THE STATE WILL START TO
MOVE EASTWARD TODAY AND ALLOW MOST OF THE RAIN TO GO WITH IT. OVER THE
REST OF STATE THERE IS ONLY A SLIGHT CHANCE OF A THUNDERSTORM TODAY
AND NO ORGANIZED SEVERE WEATHER IS EXPECTED.

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL WILL
NOT BE NECESSARY.  THE HAZARDOUS WEATHER OUTLOOK FOR SOUTHWEST
ALABAMA... SEE PRODUCT BHMSPSMOB. FOR SOUTHEAST ALABAMA... LOOK AT
MIASPSTLH.  FOR MORE WEATHER INFORMATION VISIT OUR INTERNET SITE ON
THE WORLD WIDE WEB AT
HTTP://WWW.ACESAG.AUBURN.EDU/DEPARTMENT/NWS/

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 1:08 PM CDTTornado WarningBMXAutauga, Elmore32 min
May 7, 1:18 PM CDTTornado WarningBMXRandolph32 min
May 7, 1:23 PM CDTTornado WarningBMXCoosa32 min
May 7, 1:39 PM CDTTornado WarningBMXElmore36 min
May 7, 1:45 PM CDTTornado WarningBMXTallapoosa50 min
May 7, 2:36 PM CDTTornado WarningBMXChambers49 min
May 7, 2:40 PM CDTTornado WarningBMXRandolph35 min
May 7, 3:09 PM CDTSevere Thunderstorm WarningBMXCleburne31 min
May 7, 3:13 PM CDTTornado WarningBMXRandolph32 min
May 7, 3:23 PM CDTTornado WarningBMXChambers32 min
May 7, 6:34 PM CDTTornado WarningBMXLee31 min

Nearby

Tornado Warnings in Alabama, 1999Every tornado warning in 1999Tornadoes 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.