Alert archive / Alabama / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 124, NWS Huntsville, AL

July 4, 2005Madison County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Jul 4, 2005, 2:58 PM CDT for Madison County, Alabama. It was in force for 47 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
Jul 4, 2005, 2:58 PM CDT (19:58 UTC)
Expired
Jul 4, 2005, 3:45 PM CDT
In force
47 min
Issued by
NWS Huntsville, AL
Area
Counties, with a storm outline in the text

County Madison County, AL

The radar

The Northeast Alabama radar (KHTX), 46 km from the middle of the area, began a volume at 19:59 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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.0 hours before the alert went out and 152 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, Nashville Metro, TN at 12:00Z on 2005-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1015 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, Nashville Metro, TN at 12:00Z on 2005-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
1015 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
-12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Huntsville, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 4, 2:07 PM CDT, 51 minutes earlier.

Area forecast discussion, Jul 4, 2:07 PM CDT, 51 minutes before
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Hazardous weather outlook, Jul 4, 1:00 PM CDT, 1 hour 58 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
100 PM CDT MON JUL 4 2005

ALZ001>010-016-TNZ076-096-097-051000-
COLBERT-CULLMAN-DE KALB-FRANKLIN AL-FRANKLIN TN-JACKSON-LAUDERDALE-
LAWRENCE-LIMESTONE-LINCOLN-MADISON-MARSHALL-MOORE-MORGAN-
100 PM CDT MON JUL 4 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PARTS OF
SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...(TODAY AND TONIGHT)...

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

A WEAK UPPER LEVEL DISTURBANCE MOVING ACROSS THE TENNESSEE VALLEY
WILL CONTINUE TO TRIGGER SCATTERED SHOWERS AND THUNDERSTORMS THIS
AFTERNOON.

LOCALLY HEAVY RAINFALL...WIND GUSTS TO 50 MPH...AND FREQUENT CLOUD TO
GROUND LIGHTNING WILL ACCOMPANY THE STRONGER STORMS.

.DAYS TWO THROUGH SEVEN...(TUESDAY THROUGH SUNDAY)...

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

THUNDERSTORM CHANCES INCREASE TUESDAY INTO WEDNESDAY AS A FRONTAL
BOUNDARY SLOWLY MOVES SOUTHEAST INTO THE TENNESSEE VALLEY.  RAINFALL
WILL BE A BIT MORE WIDESPREAD...WITH LOCALLY HEAVY AMOUNTS OF 1 TO 2
INCHES.  GUSTY WINDS AND FREQUENT LIGHTNING WILL ALSO ACCOMPANY THE
STRONGEST STORMS.

FOR THE BALANCE OF THE WEEK INTO THE WEEKEND...A TYPICAL SUMMERTIME
WEATHER PATTERN SHOULD PROVIDE DAILY ISOLATED TO SCATTERED AFTERNOON
AND EARLY EVENING THUNDERSTORMS.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL
IS NOT ANTICIPATED AT THIS TIME.

24

In the hours before

Special weather statement, Jul 4, 1:20 PM CDT, 1 hour 38 minutes before
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Special weather statement, Jul 4, 1:58 PM CDT, 1 hour before
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Special weather statement, Jul 4, 2:05 PM CDT, 53 minutes before
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Special weather statement, Jul 4, 2:44 PM CDT, 14 minutes before
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Local storm report, Jul 4, 2:49 PM CDT, 9 minutes before
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Special weather statement, Jul 4, 2:49 PM CDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 12:39 PM CDTSevere Thunderstorm WarningHUNMorgan36 min
Jul 4, 1:23 PM CDTSevere Thunderstorm WarningHUNLauderdale, Limestone52 min
Jul 4, 2:18 PM CDTSevere Thunderstorm WarningHUNLimestone28 min
Jul 4, 2:20 PM CDTSevere Thunderstorm WarningHUNMadison40 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.