Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 125, NWS Huntsville, AL

June 4, 2012Colbert County, Franklin County, Alabama

NWS Huntsville, AL issued this severe thunderstorm warning at Jun 4, 2012, 4:47 AM CDT for Colbert County, Franklin County, Alabama. It was in force for 43 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 4, 2012, 4:47 AM CDT (09:47 UTC)
Expired: Jun 4, 2012, 5:30 AM CDT
In force: 43 min
Issued by: NWS Huntsville, AL
Area: Storm-based polygon

Counties Colbert County, AL, Franklin County, AL

The radar

The Columbus AFB radar (KGWX), 88 km from the middle of the area, began a volume at 09:44 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, 9.8 hours before the alert went out and 182 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: 561 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 1537 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Jun 4, 4:13 AM CDT, 34 minutes earlier.

Area forecast discussion, Jun 4, 4:13 AM CDT, 34 minutes before

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Hazardous weather outlook, Jun 4, 2:27 AM CDT, 2 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
226 AM CDT SUN JUN 3 2012

ALZ001>010-016-TNZ076-096-097-041000-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
226 AM CDT SUN JUN 3 2012

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

.DAY ONE...TONIGHT...

ISOLATED LIGHTNING STRIKES ARE POSSIBLE FOR AREAS EAST OF INTERSTATE
65 FOR THE REMAINDER OF TONIGHT.

AS ANOTHER THUNDERSTORM COMPLEX SLIDES TOWARD THE TENNESSEE VALLEY
FROM THE NORTHWEST...ADDITIONAL THUNDERSTORM CHANCES ARE EXPECTED
FOR AREAS WEST OF INTERSTATE 65 TONIGHT. THESE STORMS WILL BRING
LOCALLY HEAVY RAINFALL IN ADDITION TO FREQUENT LIGHTNING...SMALL
HAIL...AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

THUNDERSTORMS ARE EXPECTED THROUGH THE DAY ON MONDAY...AND THE
STRONGEST STORMS WILL BE CAPABLE OF DAMAGING WINDS...LARGE HAIL...AND
LOCALLY HEAVY RAINFALL. THUNDERSTORM CHANCES WILL TAPER OFF BY LATE
MONDAY NIGHT AS A COLD FRONT SAGS SOUTH OF THE TENNESSEE VALLEY.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IN
NOT ANTICIPATED FOR THE REMAINDER OF THE OVERNIGHT...HOWEVER
ACTIVATION MAY BE REQUESTED ON MONDAY.

TT/JLL

In the hours before

Special weather statement, Jun 4, 1:28 AM CDT, 3 hours 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
128 AM CDT MON JUN 4 2012

ALZ008-010-040700-
DE KALB-MARSHALL-
128 AM CDT MON JUN 4 2012

...SIGNIFICANT WEATHER ADVISORY FOR DEKALB AND MARSHALL COUNTIES
UNTIL 200 AM CDT...

AT 128 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR PAINTER...OR 7 MILES NORTHEAST OF
ALBERTVILLE...MOVING EAST AT 40 MPH.

NICKEL SIZE HAIL...WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  LATHAMVILLE...GERALDINE.
  CROSSVILLE...SKIRUM.
  COLLINSVILLE.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3425 8578 3425 8580 3424 8581 3423 8584
      3420 8584 3419 8584 3419 8599 3427 8624
      3444 8617 3433 8569
TIME...MOT...LOC 0628Z 287DEG 34KT 3433 8610

Local storm report, Jun 4, 1:35 AM CDT, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
135 AM CDT MON JUN 04 2012

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

1240 AM     TSTM WND DMG     1 S HARTSELLE           34.43N 86.93W
06/04/2012                   MORGAN             AL   EMERGENCY MNGR

            TREE REPORTED DOWN ALONG SPARKMAN STREET SOUTH OF
            HARTSELLE. TIME ESTIMATED BASED ON RADAR.

1244 AM     TSTM WND DMG     S TRINITY               34.60N 87.09W
06/04/2012                   MORGAN             AL   EMERGENCY MNGR

            THUNDERSTORM WINDS BLEW A TREE DOWN THAT TOOK OUT SOME
            POWERLINES ALONG NORTH SENACA SPRINGS DRIVE IN TRINITY.
            UTILITY CREWS WORKING TO REPAIR LINES.

&&

DJN

Local storm report, Jun 4, 1:36 AM CDT, 3 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HUNTSVILLE AL
136 AM CDT MON JUN 04 2012

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

1040 PM     TSTM WND DMG     ATHENS                  34.80N 86.97W
06/03/2012                   LIMESTONE          AL   EMERGENCY MNGR

            A TREE WAS DOWNED ONTO A HOUSE AND A CAR BY THUNDERSTORM
            WINDS.

1040 PM     TSTM WND DMG     ATHENS                  34.80N 86.97W
06/03/2012                   LIMESTONE          AL   EMERGENCY MNGR

            A TREE WAS DOWNED ONTO A HOME AND A CAR BY THUNDERSTORM
            WINDS.

1040 PM     TSTM WND DMG     ATHENS                  34.80N 86.97W
06/03/2012                   LIMESTONE          AL   EMERGENCY MNGR

            A TREE WAS DOWNED ONTO A HOME AND A CAR BY THUNDERSTORM
            WINDS.

1145 PM     TSTM WND DMG     3 SW CHEROKEE           34.73N 88.00W
06/03/2012                   COLBERT            AL   TRAINED SPOTTER

            A FEW TREES DOWNED AND A SHUTTER BLOWN OFF OF A HOME BY
            THUNDERSTORM WINDS.

1205 AM     TSTM WND DMG     TUSCUMBIA               34.73N 87.71W
06/04/2012                   COLBERT            AL   EMERGENCY MNGR

            SEVERAL POWER LINES WERE DOWNED BY THUNDERSTORM WINDS.

1205 AM     TSTM WND DMG     2 W CHEROKEE            34.76N 88.00W
06/04/2012                   COLBERT            AL   EMERGENCY MNGR

            SEVERAL POWER LINES WERE DOWNED BY THUNDERSTORM WINDS.

1214 AM     TSTM WND DMG     SHEFFIELD               34.77N 87.70W
06/04/2012                   COLBERT            AL   EMERGENCY MNGR

            A TREE WAS DOWNED ONTO A HOME BY THUNDERSTORM WINDS.

1220 AM     HAIL             RIPLEY                  34.76N 87.12W
06/04/2012  E1.00 INCH       LIMESTONE          AL   TRAINED SPOTTER

            QUARTER SIZE HAIL WAS REPORTED.

1240 AM     TSTM WND DMG     1 S HARTSELLE           34.43N 86.93W
06/04/2012                   MORGAN             AL   EMERGENCY MNGR

            TREE REPORTED DOWN ALONG SPARKMAN STREET SOUTH OF
            HARTSELLE. TIME ESTIMATED BASED ON RADAR.

1244 AM     TSTM WND DMG     S TRINITY               34.60N 87.09W
06/04/2012                   MORGAN             AL   EMERGENCY MNGR

            THUNDERSTORM WINDS BLEW A TREE DOWN THAT TOOK OUT SOME
            POWERLINES ALONG NORTH SENACA SPRINGS DRIVE IN TRINITY.
            UTILITY CREWS WORKING TO REPAIR LINES.

&&

DJN

Special weather statement, Jun 4, 4:06 AM CDT, 41 minutes before

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Special weather statement, Jun 4, 4:31 AM CDT, 16 minutes before

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Special weather statement, Jun 4, 4:40 AM CDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 10:04 PM CDT	Special Weather Statement	HUN	Limestone	26 min
Jun 3, 10:07 PM CDT	Special Weather Statement	HUN	Madison	23 min
Jun 3, 10:21 PM CDT	Severe Thunderstorm Warning	HUN	Limestone	24 min
Jun 3, 10:48 PM CDT	Special Weather Statement	HUN	Jackson	27 min
Jun 3, 11:10 PM CDT	Special Weather Statement	HUN	Madison	35 min
Jun 3, 11:12 PM CDT	Flash Flood Warning	HUN	Lauderdale, Limestone	3 hr
Jun 3, 11:21 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Lauderdale	24 min
Jun 3, 11:41 PM CDT	Special Weather Statement	HUN	Jackson	49 min
Jun 3, 11:46 PM CDT	Severe Thunderstorm Warning	HUN	Colbert, Franklin, Lauderdale	29 min
Jun 4, 12:05 AM CDT	Special Weather Statement	HUN	Limestone	25 min
Jun 4, 12:12 AM CDT	Severe Thunderstorm Warning	HUN	Colbert, Franklin, Lauderdale, Lawrence, Limestone	27 min
Jun 4, 12:28 AM CDT	Special Weather Statement	HUN	DeKalb, Jackson	47 min
Jun 4, 12:33 AM CDT	Severe Thunderstorm Warning	HUN	Lawrence, Limestone, Madison, Morgan	27 min
Jun 4, 1:28 AM CDT	Special Weather Statement	HUN	DeKalb	32 min
Jun 4, 3:19 AM CDT	Severe Thunderstorm Warning	HUN	Franklin, Lawrence	11 min
Jun 4, 4:06 AM CDT	Special Weather Statement	HUN	Colbert	24 min
Jun 4, 4:31 AM CDT	Special Weather Statement	HUN	Colbert	29 min
Jun 4, 4:40 AM CDT	Special Weather Statement	HUN	Cullman	35 min
Jun 4, 4:59 AM CDT	Special Weather Statement	HUN	Colbert, Lawrence	46 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Every severe thunderstorm warning in 2012

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.