Alert archive / Alabama / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 166, NWS Birmingham, AL

June 15, 2010St. Clair County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 15, 2010, 1:44 PM CDT for St. Clair County, Alabama. It was in force for 31 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 15, 2010, 1:44 PM CDT (18:44 UTC)
Expired: Jun 15, 2010, 2:15 PM CDT
In force: 31 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

County St. Clair County, AL

The radar

The Birmingham radar (KBMX), 74 km from the middle of the area, began a volume at 18:46 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, 6.7 hours before the alert went out and 74 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: 2607 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 1028 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 16 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 Jun 15, 12:40 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jun 15, 12:40 PM CDT, 1 hour 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1240 PM CDT TUE JUN 15 2010

.UPDATE...FOR 18Z AVIATION.

&&

.DISCUSSION...

WENT AHEAD AND RAISED POPS THROUGHOUT THE NORTHWESTERN PORTIONS OF
THE CWA TO REFLECT THE CONVECTIVE DEVELOPMENT AHEAD OF A BOUNDARY
THAT WAS ANALYZED AT 13Z THIS MORNING. ALSO TWEAKED TEMPS A BIT TO
REFLECT CURRENT TEMPERATURES...BUT OVERALL TEMPS LOOK GOOD ACROSS
THE BOARD. ANY STORM THAT DEVELOPS HAS THE POTENTIAL TO PRODUCE VERY
HEAVY DOWNPOURS...AS WELL AS GUSTY WINDS OVER 50 MPH. AN ISOLATED
SEVERE GUST ALSO CANNOT BE RULED OUT. WET MICROBURST POTENTIAL WILL
BE HIGH....WITH CAPES OVER 4000...AND DRIER AIR IN THE MID LEVELS
THAT COULD MIX DOWN TO THE SURFACE WITH EVAPORATIVE COOLING. A FEW
OTHER STATIONARY BOUNDARIES OUT THERE COULD LEAD TO MORE CONVECTIVE
DEVELOPMENT LATER THIS AFTERNOON. UPDATES ARE OUT.

&&

.AVIATION...18Z TAF DISCUSSION.

SCATTERED THUNDERSTORMS DEVELOPING EARLY THIS AFTERNOON ACROSS THE
I-20/59 CORRIDOR. THIS TREND SHOULD CONTINUE INTO EARLY EVENING.
FOR MGM AND TOI...CONVECTIVE TEMPERATURE A LITTLE HIGHER BUT SOME
THUNDERSTORM DEVELOPMENT IS EXPECTED. WILL WORD TAFS WITH VC AND
CB THROUGH 01Z WHEN ACTIVITY SHOULD BE TOO ISOLATED TO INCLUDE IN
TAF COVERAGE.

LOTS OF HZ/BR EVEN THROUGH THE PEAK HEATING HOURS ALONG WITH HIGH
SPECIFIC HUMIDITY VALUES SUGGESTS A THREAT OF IFR VISIBILITIES
ACROSS THE AREA OVERNIGHT. WILL BE CONSERVATIVE WITH MVFR VALUES
AND SEE HOW TODAYS RAINFALL AFFECTS THE AREA.

WINDS WILL BE LIGHT SW EXCEPT IN THUNDERSTORM OUTFLOW WHERE
VARIABILITY AND HIGHER GUSTS SHOULD BE EXPECTED.

&&

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

&&

58/88

Hazardous weather outlook, Jun 15, 1:15 PM CDT, 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
115 PM CDT TUE JUN 15 2010

ALZ011>015-017>050-161817-
AUTAUGA-BARBOUR-BIBB-BLOUNT-BULLOCK-CALHOUN-CHAMBERS-CHEROKEE-
CHILTON-CLAY-CLEBURNE-COOSA-DALLAS-ELMORE-ETOWAH-FAYETTE-GREENE-HALE-
JEFFERSON-LAMAR-LEE-LOWNDES-MACON-MARENGO-MARION-MONTGOMERY-PERRY-
PICKENS-PIKE-RANDOLPH-RUSSELL-SHELBY-ST CLAIR-SUMTER-TALLADEGA-
TALLAPOOSA-TUSCALOOSA-WALKER-WINSTON-
115 PM CDT TUE JUN 15 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE
NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE THROUGH ROUGHLY 8
PM ACROSS ALL OF CENTRAL ALABAMA. SOME STORMS WILL HAVE THE
POTENTIAL TO PRODUCE GUSTY WINDS TO 50 MPH OR GREATER...AS WELL AS
DIME TO QUARTER SIZE HAIL. HEAVY RAINFALL WILL ALSO HAVE THE
POTENTIAL TO PRODUCE LOCALIZED FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NECESSARY THIS AFTERNOON AND EARLY EVENING.

In the hours before

Local storm report, Jun 15, 12:59 PM CDT, 45 minutes before

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Local storm report, Jun 15, 1:16 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
116 PM CDT TUE JUN 15 2010

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

1241 PM     TSTM WND DMG     5 NNE BIRMINGHAM        33.59N 86.77W
06/15/2010                   JEFFERSON          AL   BROADCAST MEDIA

            POWER LINES REPORTED DOWN NEAR THE MCDONALDS IN TARRANT.

&&

GGOGGINS

Local storm report, Jun 15, 1:22 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
122 PM CDT TUE JUN 15 2010

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

1248 PM     TSTM WND DMG     6 NNE BIRMINGHAM        33.61N 86.77W
06/15/2010                   JEFFERSON          AL   BROADCAST MEDIA

            TREE DOWN BLOCKING THE ROADWAY IN FRONT OF SPRINGDALE
            BAPTIST CHURCH.

&&

GGOGGINS

Local storm report, Jun 15, 1:24 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
124 PM CDT TUE JUN 15 2010

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

0110 PM     TSTM WND DMG     FULTONDALE              33.62N 86.80W
06/15/2010                   JEFFERSON          AL   LAW ENFORCEMENT

            FULTONVILLE PD REPORTS TREE DOWN ON WALKERS CHAPEL ROAD
            NETWEEN THE IRON BRIDGE AND COALBURG ROAD BLOCKING ONE
            LANE OF TRAFFIC.

&&

Local storm report, Jun 15, 1:33 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
133 PM CDT TUE JUN 15 2010

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

0120 PM     HAIL             HOOVER                  33.38N 86.82W
06/15/2010  E0.25 INCH       JEFFERSON          AL   TRAINED SPOTTER

            DIME SIZE HAIL ALONG RIVERCHASE PARKWAY WEST.

&&

Local storm report, Jun 15, 1:39 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
139 PM CDT TUE JUN 15 2010

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

1218 PM     TSTM WND DMG     3 NNE ARLEY             34.13N 87.19W
06/15/2010                   WINSTON            AL   BROADCAST MEDIA

            TREES REPORTED DOWN IN ARLEY ON PELICAN ROAD.

&&

GGOGGINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 11:57 AM CDT	Severe Thunderstorm Warning	BMX	Winston	48 min
Jun 15, 12:10 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	35 min
Jun 15, 12:20 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Tuscaloosa	40 min
Jun 15, 12:26 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	34 min
Jun 15, 12:28 PM CDT	Areal Flood Advisory	BMX	Jefferson	2 hr
Jun 15, 12:43 PM CDT	Severe Thunderstorm Warning	BMX	Walker	32 min
Jun 15, 12:49 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	26 min
Jun 15, 12:52 PM CDT	Flash Flood Warning	BMX	Jefferson	3 hr
Jun 15, 12:56 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Tuscaloosa	34 min
Jun 15, 1:10 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Walker	35 min
Jun 15, 1:24 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	36 min
Jun 15, 1:31 PM CDT	Severe Thunderstorm Warning	BMX	Walker	29 min
Jun 15, 1:49 PM CDT	Areal Flood Advisory	BMX	Jefferson, Shelby	116 min
Jun 15, 1:51 PM CDT	Severe Thunderstorm Warning	BMX	Fayette, Marion	24 min
Jun 15, 1:54 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Lee, Tallapoosa	36 min
Jun 15, 1:57 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Shelby	33 min
Jun 15, 1:59 PM CDT	Areal Flood Advisory	BMX	Walker	2 hr
Jun 15, 2:00 PM CDT	Severe Thunderstorm Warning	BMX	Chambers	30 min
Jun 15, 2:10 PM CDT	Flash Flood Warning	BMX	Jefferson, Shelby	3 hr
Jun 15, 2:12 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Tuscaloosa	33 min
Jun 15, 2:41 PM CDT	Severe Thunderstorm Warning	BMX	Winston	34 min
Jun 15, 2:46 PM CDT	Areal Flood Advisory	BMX	Bibb, Jefferson, Tuscaloosa	3 hr
Jun 15, 2:56 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	34 min
Jun 15, 3:10 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	35 min
Jun 15, 3:19 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Talladega	26 min
Jun 15, 3:25 PM CDT	Flash Flood Warning	BMX	Randolph	2 hr
Jun 15, 3:28 PM CDT	Severe Thunderstorm Warning	BMX	Bullock, Pike	32 min
Jun 15, 3:34 PM CDT	Areal Flood Advisory	BMX	Calhoun, Cleburne	116 min
Jun 15, 3:44 PM CDT	Severe Thunderstorm Warning	BMX	Clay	31 min
Jun 15, 3:52 PM CDT	Flash Flood Warning	BMX	Calhoun, Cleburne	3 hr
Jun 15, 3:54 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Dallas	36 min
Jun 15, 4:13 PM CDT	Severe Thunderstorm Warning	BMX	Clay, Cleburne	47 min
Jun 15, 4:19 PM CDT	Areal Flood Advisory	BMX	Clay, Cleburne	116 min
Jun 15, 4:21 PM CDT	Severe Thunderstorm Warning	BMX	Barbour, Bullock, Macon, Russell	39 min
Jun 15, 4:27 PM CDT	Severe Thunderstorm Warning	BMX	Autauga, Chilton	33 min
Jun 15, 4:39 PM CDT	Severe Thunderstorm Warning	BMX	Sumter	36 min
Jun 15, 4:47 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	28 min
Jun 15, 4:52 PM CDT	Severe Thunderstorm Warning	BMX	Autauga	38 min
Jun 15, 4:56 PM CDT	Areal Flood Advisory	BMX	Autauga, Chilton, Coosa, Elmore	2 hr
Jun 15, 4:58 PM CDT	Severe Thunderstorm Warning	BMX	Dallas, Perry	32 min
Jun 15, 5:02 PM CDT	Areal Flood Advisory	BMX	Greene, Pickens, Sumter, Tuscaloosa	3 hr
Jun 15, 5:08 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Tuscaloosa	37 min
Jun 15, 5:18 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Lee, Tallapoosa	42 min
Jun 15, 5:36 PM CDT	Severe Thunderstorm Warning	BMX	Pickens, Tuscaloosa	24 min
Jun 15, 5:45 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale, Perry	45 min
Jun 15, 5:52 PM CDT	Severe Thunderstorm Warning	BMX	Hale, Perry	23 min
Jun 15, 5:55 PM CDT	Areal Flood Advisory	BMX	Greene, Pickens, Tuscaloosa	3 hr
Jun 15, 6:04 PM CDT	Areal Flood Advisory	BMX	Bibb, Greene, Hale, Perry	3 hr
Jun 15, 6:04 PM CDT	Severe Thunderstorm Warning	BMX	Pike	41 min
Jun 15, 6:16 PM CDT	Severe Thunderstorm Warning	BMX	Hale, Perry	44 min
Jun 15, 6:36 PM CDT	Flash Flood Warning	BMX	Bibb, Hale, Perry	114 min
Jun 15, 6:43 PM CDT	Areal Flood Advisory	BMX	Russell	2 hr
Jun 15, 6:50 PM CDT	Areal Flood Advisory	BMX	Jefferson, Shelby, Tuscaloosa	115 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2010 Every severe thunderstorm warning in 2010

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.