Alert archive / Alabama / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 364, NWS Birmingham, AL

May 29, 2005Marengo County, Sumter County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at May 29, 2005, 3:01 PM CDT for Marengo County, Sumter County, Alabama. It was in force for 59 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 29, 2005, 3:01 PM CDT (20:01 UTC)
Expired
May 29, 2005, 4:00 PM CDT
In force
59 min
Issued by
NWS Birmingham, AL
Area
Counties, with a storm outline in the text

Counties Marengo County, AL, Sumter County, AL

The radar

The Birmingham radar (KBMX), 142 km from the middle of the area, began a volume at 20:05 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 12:00Z, 8.0 hours before the alert went out and 142 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 2005-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 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 2005-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

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.

NWS Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 2:15 PM CDT, 46 minutes earlier.

Area forecast discussion, May 29, 2:15 PM CDT, 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
215 PM CDT SUN MAY 29 2005

.SHORT TERM...(TONIGHT - WED NIGHT)

AREAS OF LIGHT SHOWERS CONTINUE ACROSS THE NORTHERN CWA WITH A
LINE OF STRONG TO SVR STORMS APPROACHING FROM THE SOUTHWEST.
TEMPERATURES TODAY RANGED GREATLY FROM NORTH TO SOUTH WITH 85 IN
TROY TO 63 IN GADSDEN...AS OF 2 PM.

NUMEROUS VORT MAXES SCHEDULED TO MOVE ACROSS THE AREA TONIGHT
THROUGH WED.  TIMING AND EXACT LOCATION OF THESE FEATURES WILL BE
A BIT DIFFICULT, BUT THEY WILL ALL BE NEAR OR OVER THE CWA, SO
LIKELY OR HIGHER POPS WILL BE ADDED THROUGH TUESDAY NIGHT.  WILL
GO LOWER THAN GFS QPF, BUT SEVERAL INCHES STILL POSSIBLE AREA
WIDE.

BY WED, UPPER LOW BEGINS TO LIFT OUT OF THE AREA AND WILL BACK
DOWN TO CHANCE POPS.

TEMPERATURES DURING THE SHORT TERM WILL AGAIN BE HEAVILY DEPENDENT
ON CLOUDS AND RAIN.

.LONG TERM...(THURSDAY - SUN NIGHT)

RETURN TO MORE SEASONAL CONDITIONS BY THURSDAY WITH MAINLY
AFTERNOON AND EARLY EVENING CONVECTION EXPECTED.  UPPER PATTERN
DEVELOPS INTO DIRTY RIDGE OVER THE SOUTHEAST.  WITH HEIGHTS RISING
MID 80S WILL BE POSSIBLE...LOWS IN THE 60S.

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     58  74  64  75 / 100 100  80  80
ANNISTON    60  74  65  77 / 100 100  80  80
BIRMINGHAM  63  75  65  77 / 100 100  80  80
TUSCALOOSA  65  77  67  80 / 100 100  80  80
CALERA      63  76  67  78 / 100 100  80  80
AUBURN      63  79  66  77 / 100 100  80  80
MONTGOMERY  67  82  68  81 / 100 100  80  80
TROY        67  82  69  82 / 100 100  80  80

&&

.BMX WATCHES/WARNINGS/ADVISORIES...NONE.

&&

88/88

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 3:57 PM CDTSevere Thunderstorm WarningBMXHale, Marengo, Perry64 min
May 29, 5:18 PM CDTSevere Thunderstorm WarningBMXMontgomery59 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2005Every severe thunderstorm warning in 2005

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.