Alert archive / Alabama / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 172, NWS Birmingham, AL

March 31, 2005Dallas County, Perry County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Mar 31, 2005, 4:45 AM CST for Dallas County, Perry County, Alabama. It was in force for 45 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: Mar 31, 2005, 4:45 AM CST (10:45 UTC)
Expired: Mar 31, 2005, 5:30 AM CST
In force: 45 min
Issued by: NWS Birmingham, AL
Area: Counties, with a storm outline in the text

Counties Dallas County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 87 km from the middle of the area, began a volume at 10:48 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 31, 1:15 AM CST	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 10.8 hours before the alert went out and 87 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 135 J/kg
Mixed-layer CIN: -297 J/kg
Mixed-layer LCL: 1597 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 268 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 Birmingham, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 30, 3:30 PM CST, 13 hours 15 minutes earlier.

Area forecast discussion, Mar 30, 3:30 PM CST, 13 hours 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
330 PM CST WED MAR 30 2005

.DISCUSSION...
SHORT WAVE TROUGH OVER THE MIDWEST STATES WILL LIFT NORTHEAST AND
PUSH A WEAK FRONTAL BOUNDARY INTO NORTHWEST ALABAMA.  SCATTERED
SHOWERS AND THUNDERSTORMS EXPECTED TO DEVELOP AHEAD OF THE FRONT
LATE TONIGHT OVER WEST ALABAMA AND SPREAD EASTWARD.  VORT MAX WILL
PASS OVER ALABAMA ON THURSDAY AND PUSH SHOWERS AND THUNDERSTORMS
INTO GEORGIA THURSDAY AFTERNOON.  SHOULD BE A BREAK IN THE
PRECIPITATION THURSDAY EVENING AS SURFACE LOW DEEPENS TO THE WEST
OF ALABAMA.  CONVECTION WILL SPREAD BACK INTO ALABAMA LATE
THURSDAY NIGHT AS SURFACE LOW TRACKS NORTHEASTWARD ACROSS THE
AREA.  UPPER TROUGH WILL PASS EAST OF THE AREA FRIDAY NIGHT, AND
COOLER AND DRIER CONDITIONS WILL RETURN IN TIME FOR THE WEEKEND.

.SHORT TERM...(TONIGHT THROUGH SATURDAY)
LOW LEVEL MOISTURE IS INCREASING RAPIDLY OVER THE AREA WITH
DEWPOINTS CLIMBING INTO THE LOWER 60S IN SOUTHWEST ALABAMA.
JACKSON 18Z UPPER AIR SOUNDING SHOWS A STRONG CAP AT 850MB WHICH
IS SUPPRESSING CONVECTIVE ACTIVITY.  STORM PREDICTION CENTER IS
FORECASTING CAP TO ERODE LATER TONIGHT WITH STRONG TO SEVERE
THUNDERSTORMS DEVELOPING OVER NORTHERN MISSISSIPPI AND SPREADING
INTO WESTERN ALABAMA AFTER MIDNIGHT.  FORECAST SOUNDINGS FROM THE
ETA SHOW CAPE VALUES APPROACHING 1000 J/KG BY 12Z THURSDAY.  WIND
PROFILES ALSO INDICATE SHEAR WILL BE SUFFICIENT FOR ISOLATED
SUPERCELLS.  SHORT WAVE TROUGH WILL PASS EAST OF THE AREA ON
THURSDAY AFTERNOON, AND CONVECTION SHOULD DECREASE AS THE
AFTERNOON PROGRESSES.  PW VALUES WILL DECREASE THURSDAY AFTERNOON
AND EVENING AS DRY AIR ADVECTS INTO THE MID LEVELS.  THE AIRMASS
WILL LIKELY BE CAPPED THROUGH THURSDAY EVENING UNTIL DEEPER
MOISTURE MOVES BACK INTO THE AREA AS MAIN UPPER TROUGH APPROACHES
FROM THE WEST.  DEEPENING SURFACE LOW WILL PROVIDE FAVORABLE
CONDITIONS FOR SEVERE THUNDERSTORMS ACROSS THE ENTIRE CWA LATE
THURSDAY NIGHT THROUGH EARLY AFTERNOON FRIDAY.  PW VALUES APPROACH
1.5 INCHES EARLY FRIDAY MORNING, AND THERE WILL BE A THREAT OF
HEAVY RAINFALL AND FLASH FLOODING.  SURFACE LOW AND ASSOCIATED
FRONT WILL EXIT ALABAMA FRIDAY AFTERNOON AND BRING AN END TO THE
CONVECTION.  GIVEN STRENGTH OF UPPER TROUGH, THERE WILL LIKELY BE
SOME WRAP-AROUND MOISTURE ACROSS NORTH ALABAMA FRIDAY EVENING.
CLOUDS WILL BEGIN TO DECREASE ACROSS THE AREA FROM THE SOUTHWEST
STARTING LATE FRIDAY NIGHT WITH CLEARING SKIES ACROSS THE
REMAINDER OF THE AREA SATURDAY MORNING.

.LONG TERM...(SUNDAY THROUGH WEDNESDAY)
SURFACE HIGH WILL BUILD INTO THE AREA ON SUNDAY WITH SEASONAL
TEMPERATURES EXPECTED.  SURFACE RIDGE WILL MOVE EASTWARD, AND
SOUTHERLY FLOW WILL RETURN MONDAY AND TUESDAY.  THE NEXT SYSTEM IS
EXPECTED TO APPROACH ALABAMA ON WEDNESDAY.  SYSTEM LOOKS STRONG
ENOUGH TO PRODUCE THUNDERSTORMS.

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     60  74  61  69 /  60  50  50  70
ANNISTON    60  74  61  70 /  60  60  50  80
BIRMINGHAM  63  74  63  69 /  60  50  70  60
TUSCALOOSA  63  75  64  70 /  60  50  70  60
CALERA      63  75  64  71 /  60  50  70  70
AUBURN      60  77  61  74 /  50  70  50  80
MONTGOMERY  63  77  64  76 /  60  60  50  80
TROY        60  77  64  77 /  40  70  50  80

&&

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

&&

58/92

In the hours before

Local storm report, Mar 31, 4:13 AM CST, 32 minutes before

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Special weather statement, Mar 31, 4:18 AM CST, 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
418 AM CST THU MAR 31 2005

ALZ013-311045-
FAYETTE-
418 AM CST THU MAR 31 2005

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR FAYETTE COUNTY UNTIL
445 AM CST...

...FREQUENT CLOUD TO GROUND LIGHTNING IS POSSIBLE FROM AN
APPROACHING THUNDERSTORM...

...SMALL HAIL IS POSSIBLE FROM AN APPROACHING THUNDERSTORM...

AT 418 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A THUNDERSTORM 10 MILES SOUTHWEST OF BERRY...MOVING NORTHEAST AT
40 MPH.

THIS THUNDERSTORM WILL AFFECT AREAS IN AND NEAR BERRY AND STUDDARDS
CROSSROADS THROUGH 445 AM CST.

Local storm report, Mar 31, 4:28 AM CST, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
428 AM CST THU MAR 31 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0154 AM     FLASH FLOOD      AUBURN                  32.59N 85.48W
03/31/2005                   LEE                AL   EMERGENCY MNGR

            EAST UNIVERSITY DRIVE AND STOKER ROAD IMPASSIBLE.
            MAGNOLIA AND WHITE AVENUES HAVE 4 TO 6 INCHES OF WATER ON
            ROADS

&&

JBW

Special weather statement, Mar 31, 4:28 AM CST, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
428 AM CST THU MAR 31 2005

ALZ027-311115-
TALLADEGA-
428 AM CST THU MAR 31 2005

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR TALLADEGA COUNTY UNTIL
515 AM CST...

...FREQUENT CLOUD TO GROUND LIGHTNING IS POSSIBLE FROM AN
APPROACHING THUNDERSTORM...

...SMALL HAIL IS POSSIBLE FROM AN APPROACHING THUNDERSTORM...

AT 428 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF THUNDERSTORMS MOVING INTO CHILDERSBURG...MOVING NORTHEAST
AT 50 MPH.

THESE THUNDERSTORMS WILL AFFECT AREAS IN AND NEAR SYLACAUGA...
CHILDERSBURG...WINTERBORO...TALLADEGA...LINCOLN...WALDO AND
MUNFORD THROUGH 515 AM CST.

THE PRIMARY THREAT FROM THESE STORMS IS FREQUENT CLOUD TO GROUND
LIGHTNING STRIKES. SOME POWER OUTAGES ARE POSSIBLE. AVOID USING
ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. IF YOU FEEL YOUR
SKIN TINGLE...OR YOUR HAIR STAND ON END...SQUAT AS LOW TO THE GROUND
AS POSSIBLE.

Special weather statement, Mar 31, 4:30 AM CST, 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
430 AM CST THU MAR 31 2005

ALZ033-039-311115-
MARENGO-PERRY-
430 AM CST THU MAR 31 2005

...SIGNIFICANT WEATHER ALERT IN EFFECT FOR MARENGO AND PERRY COUNTIES
UNTIL 515 AM CST...

...FREQUENT CLOUD TO GROUND LIGHTNING IS POSSIBLE FROM AN APPROACHING
THUNDERSTORM...

...SMALL HAIL IS POSSIBLE FROM AN APPROACHING THUNDERSTORM...

AT 429 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM OVER DAYTON...MOVING NORTHEAST AT 40 MPH.

THIS THUNDERSTORM WILL AFFECT AREAS IN AND NEAR DAYTON...FAUNSDALE...
UNIONTOWN...MARION AND HEIBERGER THROUGH 515 AM CST.

THE PRIMARY THREAT FROM THESE STORMS IS SMALL HAIL. HAIL UP TO ONE
HALF INCH IN DIAMETER...IS POSSIBLE. IF YOU ARE OUTDOORS IN THE
VICINITY OF THESE STORMS...TAKE SHELTER NOW.

Local storm report, Mar 31, 4:35 AM CST, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
435 AM CST THU MAR 31 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0419 AM     TSTM WND GST     TUSCALOOSA              33.24N 87.54W
03/31/2005  0 MPH            TUSCALOOSA         AL   EMERGENCY MNGR

            TREE DOWN ON TRAILER IN ROMULUS COMMUNITY. AT LEAST THREE
            HOMES STRUCK BY LIGHTNING.

&&

JBW

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 9:01 PM CST	Severe Thunderstorm Warning	BMX	Hale	44 min
Mar 30, 9:07 PM CST	Severe Thunderstorm Warning	BMX	Pickens	23 min
Mar 30, 9:09 PM CST	Severe Thunderstorm Warning	BMX	Tuscaloosa	36 min
Mar 30, 9:16 PM CST	Severe Thunderstorm Warning	BMX	Bibb	44 min
Mar 30, 9:25 PM CST	Severe Thunderstorm Warning	BMX	Marion	35 min
Mar 30, 9:31 PM CST	Severe Thunderstorm Warning	BMX	Marengo	29 min
Mar 30, 9:35 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, Walker	40 min
Mar 30, 9:43 PM CST	Severe Thunderstorm Warning	BMX	Tuscaloosa	47 min
Mar 30, 9:53 PM CST	Severe Thunderstorm Warning	BMX	Lowndes	52 min
Mar 30, 9:58 PM CST	Severe Thunderstorm Warning	BMX	Marion	47 min
Mar 30, 10:06 PM CST	Severe Thunderstorm Warning	BMX	Dallas	39 min
Mar 30, 10:09 PM CST	Severe Thunderstorm Warning	BMX	Blount	54 min
Mar 30, 10:13 PM CST	Severe Thunderstorm Warning	BMX	Jefferson	47 min
Mar 30, 10:26 PM CST	Severe Thunderstorm Warning	BMX	Montgomery	64 min
Mar 30, 10:27 PM CST	Severe Thunderstorm Warning	BMX	St. Clair	48 min
Mar 30, 10:27 PM CST	Severe Thunderstorm Warning	BMX	Pickens	48 min
Mar 30, 10:45 PM CST	Severe Thunderstorm Warning	BMX	Lowndes	15 min
Mar 30, 10:46 PM CST	Severe Thunderstorm Warning	BMX	Etowah	44 min
Mar 30, 10:53 PM CST	Flash Flood Warning	BMX	Montgomery	2 hr
Mar 30, 11:05 PM CST	Severe Thunderstorm Warning	BMX	Macon	40 min
Mar 30, 11:09 PM CST	Severe Thunderstorm Warning	BMX	Perry	36 min
Mar 30, 11:15 PM CST	Severe Thunderstorm Warning	BMX	Elmore, Tallapoosa	30 min
Mar 30, 11:23 PM CST	Flash Flood Warning	BMX	Elmore	97 min
Mar 30, 11:38 PM CST	Severe Thunderstorm Warning	BMX	Lee	52 min
Mar 30, 11:41 PM CST	Severe Thunderstorm Warning	BMX	Macon	34 min
Mar 30, 11:45 PM CST	Severe Thunderstorm Warning	BMX	Jefferson, Walker	48 min
Mar 30, 11:50 PM CST	Severe Thunderstorm Warning	BMX	Elmore, Tallapoosa	25 min
Mar 31, 12:12 AM CST	Severe Thunderstorm Warning	BMX	Montgomery	21 min
Mar 31, 12:20 AM CST	Severe Thunderstorm Warning	BMX	Macon	10 min
Mar 31, 12:26 AM CST	Severe Thunderstorm Warning	BMX	Elmore	34 min
Mar 31, 12:28 AM CST	Flash Flood Warning	BMX	Lee	2 hr
Mar 31, 12:28 AM CST	Severe Thunderstorm Warning	BMX	Lee	47 min
Mar 31, 12:55 AM CST	Flash Flood Warning	BMX	Elmore, Montgomery	2 hr
Mar 31, 1:21 AM CST	Severe Thunderstorm Warning	BMX	Macon	24 min
Mar 31, 1:35 AM CST	Severe Thunderstorm Warning	BMX	Sumter	41 min
Mar 31, 2:11 AM CST	Flash Flood Warning	BMX	Lee	2 hr
Mar 31, 2:29 AM CST	Severe Thunderstorm Warning	BMX	Greene, Sumter	46 min
Mar 31, 3:01 AM CST	Flash Flood Warning	BMX	Elmore	119 min
Mar 31, 3:08 AM CST	Severe Thunderstorm Warning	BMX	Bibb, Tuscaloosa	52 min
Mar 31, 3:11 AM CST	Severe Thunderstorm Warning	BMX	Marengo	64 min
Mar 31, 6:00 AM CST	Severe Thunderstorm Warning	BMX	Autauga, Chilton	45 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2005 Every 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.