Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 53, NWS Huntsville, AL

May 5, 2003Franklin County, Lawrence County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at May 5, 2003, 11:38 AM CDT for Franklin County, Lawrence County, Alabama. It was in force for 22 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 5, 2003, 11:38 AM CDT (16:38 UTC)
Expired
May 5, 2003, 12:00 PM CDT
In force
22 min
Issued by
NWS Huntsville, AL
Area
Counties, with a storm outline in the text

Counties Franklin County, AL, Lawrence County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 5, 9:35 AM CDTTornado WatchSPC5 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 4.6 hours before the alert went out and 162 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 2003-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1048 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 12:00Z on 2003-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 299 square meters per square second.1939587897Sfc1 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
1048 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
299 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
1.7
Supercell composite
5.1

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 May 5, 10:00 AM CDT, 1 hour 38 minutes earlier.

Area forecast discussion, May 5, 10:00 AM CDT, 1 hour 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1000 AM CDT MON MAY 5 2003

...FORECAST CHALLENGES FOR UPDATE ARE PLENTIFUL...

T-STORM ACTIVITY CONTINUES ACROSS SOUTHEAST U.S. DUE TO APPROACHING
STORM SYSTEM. WV IMAGERY INDICATES DRYING IN MID LAYERS WITH UPPER
JET PUNCHING INTO MS VALLEY ATTM. DEWPOINTS APPROACHING 70F DEGREE
MARK AS GRADIENT TIGHTENS AHEAD OF SYSTEM. WINDS GUSTING TO 25-30
MPH RANGE COURTESY OF 50KT WINDS JUST OFF SURFACE PER NASHVILLE 12Z
SOUNDING. ENTIRE AREA CURRENTLY UNDER MODERATE RISK FOR SEVERE
WEATHER GIVEN EXTREMELY UNSTABLE AIRMASS IN PLACE.

UPPER LEVEL JET FORECAST TO MOVE ACROSS AREA THIS AFTERNOON WITH
REGION IN RIGHT REAR QUADRANT BY 00Z ACCORDING TO LATEST RUC DATA.
RUC INDICATING MUCH STRONGER CAPES ACROSS AREA BY 21Z IN 3000-4000
J/KG RANGE WITH 70F DEWPOINT. LI/S DROP TO -9 WITH HELICITIES
400-500 M2/S2. RESIDUAL BOUNDARIES WILL ENHANCE TORNADO THREAT
THROUGH AFTERNOON AS AIRMASS BECOMES INCREASINGLY UNSTABLE. MESOETA
SOUNDING INDICATE LCLS DROPPING TO 2400 FEET...MORE THAN SUFFICIENT
FOR TORNADIC ACTIVITY. BRN SHEAR VALUES REMAIN OVER 100 THROUGHOUT
AFTERNOON...SUGGESTING POTENTIAL FOR SUPERCELLS CONTINUES DURING
MOST OF DAY.

WILL WAIT FOR 15Z OBS TO COME IN BEFORE UPDATING ZONES. AT THIS
TIME...PLAN TO EXTEND WIND ADVISORY THROUGH 4 PM WITH POTENTIAL FOR
MIXING THROUGHOUT AFTERNOON. UPDATE OUT BY 16Z WITH ONLY MINOR
TWEAKS PLANNED FOR NOW.

.HUN...TORNADO WATCH FOR MOST OF NORTHERN ALABAMA UNTIL 3 PM.
WIND ADVISORY FOR ALL OF NORTHERN ALABAMA UNTIL 4 PM TODAY.

BRIDENSTINE
Hazardous weather outlook, May 5, 5:00 AM CDT, 6 hours 38 minutes before
ALZ001>010-016-051800-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
500 AM CDT MON MAY 5 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA.

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

...A TORNADO WATCH IS IN EFFECT FOR ALL OF NORTH ALABAMA EXCEPT FOR
CULLMAN AND DE KALB COUNTIES UNTIL 11 AM CDT THIS MORNING...

A LINE OF STRONG TO SEVERE THUNDERSTORMS WILL MOVE EAST THROUGH
NORTHERN MISSISSIPPI INTO NORTHWEST ALABAMA BY MID MORNING. LARGE
HAIL...DAMAGING WINDS AND ISOLATED TORNADOES ARE POSSIBLE THIS
MORNING.

ANOTHER LINE OF STRONG TO SEVERE STORMS WILL FOLLOW THE FIRST
AREA BY LATE MORNING INTO NORTH ALABAMA. YOU CAN EXPECT THE SEVERE
WEATHER THREAT TO CONTINUE INTO THE AFTERNOON HOURS ACROSS NORTH
ALABAMA. LARGE HAIL...DAMAGING WIND GUSTS IN EXCESS OF 60 MILES AN
HOUR...FREQUENT LIGHTNING...VERY HEAVY RAINFALL AND A FEW TORNADOES
ARE POSSIBLE.

THE SEVERE WEATHER THREAT WILL LIKELY CONTINUE INTO THE EVENING
ACROSS THE AREA AS STRONG TO SEVERE STORMS ARE EXPECTED TO CONTINUE
TO DEVELOP.

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

A STATIONARY FRONTAL BOUNDARY ACROSS THE TENNESSEE VALLEY WILL
KEEP THE WEATHER ACTIVE ACROSS THE REGION THROUGH AT LEAST
WEDNESDAY. FLASH FLOODING COULD BECOME AN ADDITIONAL THREAT BY
WEDNESDAY IF THUNDERSTORM COMPLEXES REPEATEDLY MOVE ACROSS THE
AREA DURING THE EARLY PART OF THE WEEK.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL
IS REQUESTED TODAY DUE TO THE TORNADO WATCH IN EFFECT. ACTIVATION
OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS LIKELY TO
BE NEEDED INTO TONIGHT AND THEN AGAIN ON BY TUESDAY AFTERNOON. STAY
TUNED FOR FURTHER WEATHER UPDATES CONCERNING THIS DANGEROUS WEATHER
SITUATION.

TROUTMAN

In the hours before

Special weather statement, May 5, 6:53 AM CDT, 4 hours 45 minutes before
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Local storm report, May 5, 7:11 AM CDT, 4 hours 27 minutes before
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Special weather statement, May 5, 7:54 AM CDT, 3 hours 44 minutes before
ALZ001>010-016-051400-

SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
754 AM CDT MON MAY 5 2003

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF NORTHERN ALABAMA
UNTIL 11 AM CDT...ANOTHER TORNADO WATCH REMAINS IN EFFECT FOR DE
KALB COUNTY UNTIL 9 AM CDT...

A LINE OF STRONG THUNDERSTORMS WILL CONTINUE TO MOVE SOUTHEAST AT 25
MPH FROM ALONG A LINE EXTENDING NORTHEAST FROM NEAR
HANCEVILLE...EXTENDING NORTHEAST TO FORT PAYNE THROUGH 9 AM.
OTHER SCATTERED STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP
FROM NEAR MOULTON IN LAWRENCE COUNTY...EXTENDING NORTHEAST TO NEAR
OWENS CROSSROADS...THEN FURTHER NORTHEAST TO NEAR SCOTTSBORO.
WIND GUSTS TO 45 MPH ALONG WITH FREQUENT LIGHTNING...VERY HEAVY
RAINFALL AND SMALL HAIL CAN BE EXPECTED WITH THE STORMS.

IF YOU ARE IN THE PATH OF ANY OF THESE STORMS...MOVE INDOORS AND AWAY
FROM WINDOWS. STAY TUNED FOR LATER STATEMENTS REGARDING THIS
RAPIDLY DEVELOPING WEATHER SITUATION.

TROUTMAN
Special weather statement, May 5, 9:07 AM CDT, 2 hours 31 minutes before
ALZ001>010-016-051530-

SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
907 AM CDT MON MAY 5 2003

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF NORTHERN ALABAMA
UNTIL 11 AM CDT...
...A NEW TORNADO WATCH IS IN EFFECT FOR DE KALB...JACKSON...MARSHALL
AND CULLMAN COUNTIES UNTIL 3 PM CDT...

A VERY UNSTABLE ATMOSPHERE EXISTS ACROSS NORTHERN ALABAMA. STRONG TO
SEVERE THUNDERSTORMS CAN DEVELOP AT ANY TIME DURING THE DAY. AT 9 AM
CDT...A LINE OF STRONG TO SEVERE THUNDERSTORMS WAS LOCATED FROM FROM
SOUTH OF VERNON TO JASPER...TO COLONY...MOVING EAST AT 45 MPH. OTHER
SHOWERS AND THUNDERSTORMS WERE DEVELOPING ELSEWHERE OVER THE
TENNESSEE VALLEY. GENERAL MOVEMENT IS EAST AT 40-45 MPH.

WIND GUSTS TO 50 MPH...SMALL HAIL...FREQUENT CLOUD TO GROUND
LIGHTNING...AND VERY HEAVY RAINS WILL ACCOMPANY THE STRONGER STORMS.

IF YOU ARE IN THE PATH OF ANY OF THESE STORMS...MOVE INDOORS AND AWAY
FROM WINDOWS. STAY TUNED FOR LATER STATEMENTS REGARDING THIS RAPIDLY
DEVELOPING WEATHER SITUATION.

BOYD
Local storm report, May 5, 10:25 AM CDT, 1 hour 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1025 AM CDT MON MAY 05 2003

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0550 AM    BRIDGEPORT                AL   0.75 IN HAIL
05/05/03   JACKSON                        PENNY SIZE HAIL. REPORTED
                                          BY LOCAL LAW ENFORCEMENT.

0600 AM    3NE ALBERTVILLE           AL   WIND DAMAGE
05/05/03   MARSHALL                       FEW POWER LINES AND LARGE
                                          LIMBS DOWN. REPORTED BY
                                          LOCAL ELECTRIC COMPANY.

0610 AM    PAINTER                   AL   WIND DAMAGE
05/05/03   DEKALB                         FEW POWER LINES AND LARGE
                                          LIMBS DOWN. REPORTED BY
                                          LOCAL ELECTRIC COMPANY.
Special weather statement, May 5, 10:37 AM CDT, 1 hour 1 minute before
ALZ001>010-016-051700-

SIGNIFICANT WEATHER ALERT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1037 AM CDT MON MAY 5 2003

...A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF NORTHERN ALABAMA
THROUGH 3 CDT...

A VERY UNSTABLE ATMOSPHERE EXISTS ACROSS NORTHERN ALABAMA. STRONG TO
SEVERE THUNDERSTORMS CAN DEVELOP AT ANY TIME TODAY OVER THE REGION.
AT 1030 AM CDT...A LINE OF STRONG TO SEVERE THUNDERSTORMS WAS LOCATED
OVER NORTH CENTRAL MISSISSIPPI...FROM SOUTH OF TUPELO...OVER MUCH OF
MARION AND WINSTON COUNTY...AND WESTERN CULLMAN COUNTY...MOVING EAST
NORTHEAST AT 45 MPH. THIS LINE OF STORMS WILL AFFECT FRANKLIN...
LAWRENCE...CULLMAN...MORGAN...MADISON...AND MARSHALL COUNTIES THROUGH
NOON.

WIND GUSTS TO 50 MPH...SMALL HAIL...FREQUENT CLOUD TO GROUND
LIGHTNING...AND VERY HEAVY RAINS WILL ACCOMPANY THE STRONGER STORMS.

IF YOU ARE IN THE PATH OF ANY OF THESE STORMS...MOVE INDOORS AND
STAY AWAY FROM WINDOWS. STAY TUNED FOR LATER STATEMENTS REGARDING
THIS RAPIDLY DEVELOPING...AND POTENTIALLY DANGEROUS WEATHER
SITUATION.

BOYD

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 5:16 AM CDTSevere Thunderstorm WarningHUNMorgan29 min
May 5, 5:23 AM CDTSevere Thunderstorm WarningHUNJackson52 min
May 5, 5:54 AM CDTSevere Thunderstorm WarningHUNDeKalb, Marshall21 min
May 5, 12:13 PM CDTSevere Thunderstorm WarningHUNLimestone, Morgan17 min
May 5, 12:19 PM CDTSevere Thunderstorm WarningHUNMadison26 min
May 5, 12:45 PM CDTSevere Thunderstorm WarningHUNMadison35 min
May 5, 12:56 PM CDTSevere Thunderstorm WarningHUNCullman, Morgan34 min
May 5, 1:10 PM CDTTornado WarningHUNCullman20 min
May 5, 1:25 PM CDTTornado WarningHUNMarshall25 min
May 5, 1:38 PM CDTSevere Thunderstorm WarningHUNLauderdale37 min
May 5, 1:55 PM CDTSevere Thunderstorm WarningHUNDeKalb, Marshall35 min
May 5, 2:01 PM CDTSevere Thunderstorm WarningHUNLimestone29 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2003Every severe thunderstorm warning in 2003

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.