Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

July 18, 2012Randolph County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 18, 2012, 6:59 AM CDT for Randolph County, Alabama. It was in force for 46 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: Jul 18, 2012, 6:59 AM CDT (11:59 UTC)
Expired: Jul 18, 2012, 7:45 AM CDT
In force: 46 min
Issued by: NWS Birmingham, AL

County Randolph County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 12.0 hours before the alert went out and 93 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: 1433 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 994 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 93 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 Jul 18, 6:36 AM CDT, 23 minutes earlier.

Area forecast discussion, Jul 18, 6:36 AM CDT, 23 minutes before

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Hazardous weather outlook, Jul 18, 5:56 AM CDT, 1 hour 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
556 AM CDT WED JUL 18 2012

ALZ011>015-017>050-191100-
MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN-CHEROKEE-
CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR-TALLADEGA-
CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON-COOSA-TALLAPOOSA-
CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON-
BULLOCK-LEE-RUSSELL-PIKE-BARBOUR-
556 AM CDT WED JUL 18 2012

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

.DAY ONE...TODAY AND TONIGHT.

ISOLATED SEVERE THUNDERSTORMS...WITH WIND GUSTS GREATER THAN 60
MPH...ARE POSSIBLE FROM NOON THROUGH 9PM TODAY AREAWIDE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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, Jul 18, 1:12 AM CDT, 5 hours 47 minutes before

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Special weather statement, Jul 18, 6:59 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
659 AM CDT WED JUL 18 2012

ALZ029-181245-
RANDOLPH AL-
659 AM CDT WED JUL 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN RANDOLPH COUNTY UNTIL
745 AM CDT...

AT 658 AM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR CRYSTAL LAKE...OR 6 MILES SOUTHEAST OF WEDOWEE...
MOVING SOUTHWEST AT 15 MPH.

PEA SIZE HAIL AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM...ALONG WITH HEAVY RAIN.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  CRYSTAL LAKE...
  CORINTH...
  MALONE...
  WADLEY...
  CONCORD...

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3311 8543 3311 8565 3324 8565 3336 8541
      3322 8528
TIME...MOT...LOC 1159Z 053DEG 12KT 3323 8543

56

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 7:52 PM CDT	Special Weather Statement	BMX	Montgomery	38 min
Jul 17, 11:12 PM CDT	Areal Flood Advisory	BMX	Greene	2 hr
Jul 17, 11:48 PM CDT	Special Weather Statement	BMX	Cherokee	42 min
Jul 18, 12:37 AM CDT	Special Weather Statement	BMX	Etowah	38 min
Jul 18, 12:45 AM CDT	Special Weather Statement	BMX	Cherokee	30 min
Jul 18, 1:12 AM CDT	Special Weather Statement	BMX	Etowah	48 min
Jul 18, 10:41 AM CDT	Flash Flood Warning	BMX	Shelby	3 hr
Jul 18, 10:53 AM CDT	Areal Flood Advisory	BMX	Jefferson	112 min
Jul 18, 11:14 AM CDT	Flash Flood Warning	BMX	Jefferson	88 min
Jul 18, 12:29 PM CDT	Special Weather Statement	BMX	Greene, Sumter	46 min
Jul 18, 12:57 PM CDT	Special Weather Statement	BMX	Fayette	48 min
Jul 18, 1:29 PM CDT	Areal Flood Warning	BMX	Shelby	3 hr
Jul 18, 1:43 PM CDT	Areal Flood Advisory	BMX	Walker, Winston	2 hr
Jul 18, 1:45 PM CDT	Special Weather Statement	BMX	Fayette, Greene	45 min
Jul 18, 1:49 PM CDT	Areal Flood Advisory	BMX	Greene, Hale, Pickens, Tuscaloosa	116 min
Jul 18, 2:04 PM CDT	Areal Flood Advisory	BMX	Fayette, Lamar	116 min
Jul 18, 2:14 PM CDT	Areal Flood Advisory	BMX	Etowah	2 hr

Nearby

Special Weather Statements in Alabama, 2012 Every special weather statement 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.