Alert archive / Alabama / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 358, NWS Birmingham, AL

June 5, 1999Madison County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 5, 1999, 1:54 AM CDT for Madison County, Alabama. It was in force for 61 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, 1:54 AM CDT (06:54 UTC)
Expired
Jun 5, 1999, 2:55 AM CDT
In force
61 min
Issued by
NWS Birmingham, AL
Area
Whole counties

County Madison County, AL

The radar

The Northeast Alabama radar (KHTX), 46 km from the middle of the area, began a volume at 06:54 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 nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 6.9 hours before the alert went out and 177 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 1999-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3062 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, Birmingham, AL at 00:00Z on 1999-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.193958Sfc1 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
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

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 1:37 AM CDTSevere Thunderstorm WarningBMXLauderdale, Limestone63 min
Jun 5, 2:18 AM CDTSevere Thunderstorm WarningBMXColbert, Lawrence47 min
Jun 5, 2:43 AM CDTSevere Thunderstorm WarningBMXMarshall, Morgan62 min
Jun 5, 2:48 AM CDTSevere Thunderstorm WarningBMXFranklin47 min
Jun 5, 2:52 AM CDTSevere Thunderstorm WarningBMXMadison33 min
Jun 5, 2:57 AM CDTSevere Thunderstorm WarningBMXCullman48 min
Jun 5, 3:09 AM CDTSevere Thunderstorm WarningBMXBlount46 min
Jun 5, 3:41 AM CDTSevere Thunderstorm WarningBMXCullman44 min
Jun 5, 3:49 AM CDTSevere Thunderstorm WarningBMXBlount46 min
Jun 5, 4:02 AM CDTSevere Thunderstorm WarningBMXJefferson, St. Clair63 min
Jun 5, 4:11 AM CDTSevere Thunderstorm WarningBMXCalhoun49 min
Jun 5, 4:20 AM CDTSevere Thunderstorm WarningBMXWalker45 min
Jun 5, 4:21 AM CDTSevere Thunderstorm WarningBMXTalladega49 min
Jun 5, 4:30 AM CDTSevere Thunderstorm WarningBMXShelby45 min
Jun 5, 5:08 PM CDTSevere Thunderstorm WarningBMXRussell47 min
Jun 5, 5:19 PM CDTSevere Thunderstorm WarningBMXBarbour66 min
Jun 5, 5:37 PM CDTSevere Thunderstorm WarningBMXBullock63 min
Jun 5, 6:27 PM CDTSevere Thunderstorm WarningBMXTalladega48 min
Jun 5, 6:46 PM CDTSevere Thunderstorm WarningBMXAutauga, Chilton49 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.