Alert archive / Alabama / Tornado Warnings in 1999

Tornado Warning 60, NWS Birmingham, AL

May 7, 1999Lee County, Alabama

NWS Birmingham, AL issued this tornado warning at May 7, 1999, 6:34 PM CDT for Lee County, Alabama. It was in force for 31 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, 6:34 PM CDT (23:34 UTC)
Expired
May 7, 1999, 7:05 PM CDT
In force
31 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Lee County, AL

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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.6 hours before the alert went out and 117 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 362 joules per kilogram.LCLLFCEL10008507005003002001001 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, Peachtre/Fal Fld, GA at 12:00Z on 1999-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
362 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 072336 RRA
TORBHM
ALC081-080005-

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

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

* TORNADO WARNING FOR...
  NORTHERN LEE COUNTY... IN EAST CENTRAL ALABAMA...

* UNTIL 705 PM CDT.

* AT 632 PM CDT... WEATHER RADAR DETECTED A SEVERE THUNDERSTORM
AND LIKELY TORNADO...BETWEEN AUBURN AND OPELIKA.  THE STORM WAS MOVING
EAST AROUND 30 MPH.


* THE TORNADO WILL AFFECT...OPELIKA...AND AREAS EAST AND NORTHEAST OF
OPELIKA...THROUGH 705 PM.

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

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, 2:33 PM CDTTornado WarningBMXTallapoosa32 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

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.