Alert archive / Alabama / Tornado Warnings in 1999

Tornado Warning 61, NWS Birmingham, AL

May 7, 1999Macon County, Alabama

NWS Birmingham, AL issued this tornado warning at May 7, 1999, 7:00 PM CDT for Macon County, Alabama. It was in force for 35 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, 7:00 PM CDT (00:00 UTC)
Expired
May 7, 1999, 7:35 PM CDT
In force
35 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Macon County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.0 hours before the alert went out and 135 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 00:00Z on 1999-05-08Temperature 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 00:00Z on 1999-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.19395878Sfc1 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
2177 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
152 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.

000 
TTAA00 KBHM 080003 RRA
TORBHM
ALC087-080035-

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

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

* TORNADO WARNING FOR...
  MACON COUNTY... IN EAST CENTRAL ALABAMA...

* UNTIL 735 PM CDT.

* AT 658 PM CDT... WEATHER RADAR DETECTED A TORNADO...IN NORTHERN
MACON COUNTY...VERY CLOSE TO TUSKEGEE UNIVERSITY.  THE STORM WAS
MOVING EAST-NORTHEAST AROUND 30 MPH.

* THE TORNADO WILL MOVE ROUGHLY ALONG INTERSTATE 85.

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, 7:41 PM CDTTornado WarningBMXBullock, Pike49 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.