Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

June 21, 2011Calhoun County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 21, 2011, 2:01 PM CDT for Calhoun County, Alabama. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 21, 2011, 2:01 PM CDT (19:01 UTC)
Expired: Jun 21, 2011, 2:45 PM CDT
In force: 44 min
Issued by: NWS Birmingham, AL

County Calhoun County, AL

The radar

The Atlanta radar (KFFC), 121 km from the middle of the area, began a volume at 19:01 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, 7.0 hours before the alert went out and 124 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: 1519 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1076 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -80 m²/s²
0-3 km storm-relative helicity: -76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 21, 12:35 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, Jun 21, 12:35 PM CDT, 1 hour 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1235 PM CDT TUE JUN 21 2011

.UPDATE...TODAYS TRENDS AND 18Z AVIATION.

&&

.DISCUSSION...

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS MUCH OF
THE AREA THIS AFTERNOON AS THE ATMOSPHERE HAS BECOME MORE MOIST
AND UNSTABLE. POPS WERE RAISED ACCORDINGLY WITH SOME ADJUSTMENTS
TO TEMPERATURES AS CLOUDS AND SHOWERS KEEP THESE NUMBERS A LITTLE
COOLER IN THE WEST. LESSER CHANCES OF RAIN IN THE SOUTHEAST
COUNTIES TODAY THAN OTHER LOCATIONS. UPDATES ARE OUT.

&&

.AVIATION...18Z TAF DISCUSSION.

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS HAVE DEVELOPED
ACROSS NORTHERN AND WESTERN ALABAMA. THIS GENERAL TREND WILL
CONTINUE THROUGH THE EARLY EVENING WHEN COVERAGE SHOULD BECOME
MORE ISOLATED DUE TO STABILIZATION. THE MOISTURE RICH ATMOSPHERE
WILL ALLOW FOR SOME MVFR CEILINGS TO DEVELOP NEAR SUNRISE THAT
SHOULD LIFT TO VFR BY 15Z. ADDITIONAL SHOWERS AND THUNDERSTORMS
WILL DEVELOP AS THE TEMPERATURES CLIMB TOMORROW MORNING AND AN
UPPER LEVEL TROUGH APPROACHES FROM THE WEST.

NOTICE...KEET TAF WILL HAVE (AMD LTD TO VIS WIND AND WX) AMENDED TO
THE END OF THE FORECAST UNTIL FURTHER NOTICE. THE CEILOMETER DATA
WILL BE GOING THROUGH NUMEROUS TESTS AND MONITORED FOR ACCURACY.

&&

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

&&

88

Hazardous weather outlook, Jun 21, 12:52 PM CDT, 1 hour 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1252 PM CDT TUE JUN 21 2011

ALZ011>015-017>050-221749-
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-
1252 PM CDT TUE JUN 21 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW AT THIS
TIME.

.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 IS NOT
EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jun 21, 1:19 PM CDT, 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
119 PM CDT TUE JUN 21 2011

ALZ019-027-211900-
CALHOUN AL-TALLADEGA AL-
119 PM CDT TUE JUN 21 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN TALLADEGA AND
CALHOUN COUNTIES UNTIL 200 PM CDT...

AT 119 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING SEVERAL
STRONG THUNDERSTORMS NEAR TALLADEGA...MOVING NORTHEAST AT 30 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  OXFORD...
  WEST END-COBB TOWN...
  COBB TOWN...
  ANNISTON...
  SAKS...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

&&

LAT...LON 3375 8565 3336 8606 3348 8625 3354 8621
      3354 8619 3356 8619 3390 8596
TIME...MOT...LOC 1819Z 215DEG 25KT 3351 8610

10/ARM

Local storm report, Jun 21, 1:24 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
124 PM CDT TUE JUN 21 2011

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

0110 PM     TSTM WND DMG     SSE COATOPA             32.49N 88.07W
06/21/2011                   SUMTER             AL   EMERGENCY MNGR

            TREE DOWN NEAR THE INTERSECTION OF CR 23 AND AL HWY 28
            NEAR COATOPA. ANOTHER TREE DOWN 2 MILES WEST OF US HWY 80
            NEAR COATOPA DRIVE. WINDS ESTIMATED AROUND 50 MPH.

&&

GOLDEN

Local storm report, Jun 21, 1:25 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BIRMINGHAM AL
125 PM CDT TUE JUN 21 2011

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

0110 PM     TSTM WND DMG     SSE COATOPA             32.49N 88.07W
06/21/2011                   SUMTER             AL   FIRE DEPT/RESCUE

            TREE DOWN NEAR THE INTERSECTION OF CR 23 AND AL HWY 28
            NEAR COATOPA. ANOTHER TREE DOWN 2 MILES WEST OF US HWY 80
            NEAR COATOPA DRIVE. WINDS ESTIMATED AROUND 50 MPH.

&&

GOLDEN

Special weather statement, Jun 21, 1:30 PM CDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
130 PM CDT TUE JUN 21 2011

ALZ022-023-030-031-211915-
GREENE AL-PICKENS AL-SUMTER AL-TUSCALOOSA AL-
130 PM CDT TUE JUN 21 2011

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN TUSCALOOSA...NORTHERN
SUMTER...PICKENS AND NORTHERN GREENE COUNTIES UNTIL 215 PM CDT...

AT 130 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES SOUTHEAST OF
MEMPHIS TO EUTAW...AND MOVING NORTHEAST AT 45 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS.

LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  ALICEVILLE...
  CARROLLTON...
  GORDO...
  REFORM...
  NORTHPORT...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

&&

LAT...LON 3353 8799 3350 8776 3336 8749 3293 8777
      3293 8778 3290 8779 3290 8780 3289 8780
      3286 8783 3284 8782 3275 8788 3296 8833
TIME...MOT...LOC 1830Z 207DEG 41KT 3309 8824 3293 8787

10/ARM

Special weather statement, Jun 21, 1:37 PM CDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
137 PM CDT TUE JUN 21 2011

ALZ036-037-043-211915-
COOSA AL-ELMORE AL-TALLAPOOSA AL-
137 PM CDT TUE JUN 21 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN TALLAPOOSA...NORTHERN
ELMORE AND EASTERN COOSA COUNTIES UNTIL 215 PM CDT...

AT 137 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR EQUALITY...MOVING NORTHEAST AT 20 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  KELLYTON...
  ALEXANDER CITY...
  GOODWATER...
  NIXBURG...
  COTTAGE GROVE...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

&&

LAT...LON 3294 8569 3266 8611 3277 8628 3310 8613
      3310 8590
TIME...MOT...LOC 1837Z 217DEG 19KT 3282 8611

10/ARM

Special weather statement, Jun 21, 2:01 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 9:50 PM CDT	Special Weather Statement	BMX	Lamar	25 min
Jun 20, 10:04 PM CDT	Special Weather Statement	BMX	Fayette	26 min
Jun 21, 12:09 PM CDT	Special Weather Statement	BMX	Etowah, St. Clair	51 min
Jun 21, 1:00 PM CDT	Special Weather Statement	BMX	Etowah	30 min
Jun 21, 1:14 PM CDT	Severe Thunderstorm Warning	BMX	Lamar, Pickens	26 min
Jun 21, 1:19 PM CDT	Special Weather Statement	BMX	Calhoun	41 min
Jun 21, 1:30 PM CDT	Special Weather Statement	BMX	Greene, Pickens	45 min
Jun 21, 1:37 PM CDT	Special Weather Statement	BMX	Tallapoosa	38 min
Jun 21, 1:48 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Tuscaloosa	20 min
Jun 21, 2:08 PM CDT	Special Weather Statement	BMX	Blount	52 min
Jun 21, 2:19 PM CDT	Special Weather Statement	BMX	Elmore	41 min
Jun 21, 2:23 PM CDT	Special Weather Statement	BMX	Fayette, Tuscaloosa	52 min
Jun 21, 2:35 PM CDT	Special Weather Statement	BMX	Bibb, Shelby	40 min
Jun 21, 2:40 PM CDT	Special Weather Statement	BMX	Etowah	50 min
Jun 21, 3:03 PM CDT	Special Weather Statement	BMX	Blount, Jefferson	57 min
Jun 21, 3:24 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Jefferson, St. Clair, Shelby	51 min
Jun 21, 3:36 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair, Shelby, Talladega	39 min
Jun 21, 3:53 PM CDT	Severe Thunderstorm Warning	BMX	Blount, Etowah, St. Clair	52 min
Jun 21, 4:06 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Etowah, St. Clair, Talladega	39 min
Jun 21, 4:43 PM CDT	Special Weather Statement	BMX	Cherokee	47 min
Jun 21, 5:14 PM CDT	Special Weather Statement	BMX	Talladega	46 min
Jun 21, 5:26 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair, Shelby, Talladega	24 min
Jun 21, 6:32 PM CDT	Special Weather Statement	BMX	Etowah	43 min
Jun 21, 6:57 PM CDT	Special Weather Statement	BMX	Lowndes	48 min

Nearby

Special Weather Statements in Alabama, 2011 Every special weather statement in 2011

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.