Alert archive / Alabama / Special Weather Statements in 2014

Special Weather Statement, NWS Birmingham, AL

June 23, 2014Cherokee County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 23, 2014, 4:03 PM CDT for Cherokee County, Alabama. It was in force for 42 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 23, 2014, 4:03 PM CDT (21:03 UTC)
Expired: Jun 23, 2014, 4:45 PM CDT
In force: 42 min
Issued by: NWS Birmingham, AL

County Cherokee County, AL

The radar

The Northeast Alabama radar (KHTX), 113 km from the middle of the area, began a volume at 21:07 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.1 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: 329 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1157 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 21 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.

851 
WWUS84 KBMX 232103
SPSBMX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
403 PM CDT MON JUN 23 2014

ALZ019-020-232145-
CALHOUN AL-CHEROKEE AL-
403 PM CDT MON JUN 23 2014

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN CHEROKEE AND
NORTHEASTERN CALHOUN COUNTIES UNTIL 445 PM CDT...

AT 402 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR PIEDMONT...MOVING NORTH AT 10 MPH.

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

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  CENTRE...
  CENTRE MUNICIPAL AIRPORT...
  BALL FLAT...
  TENNALA...
  MOSHAT...

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 3422 8554 3396 8547 3396 8549 3394 8550
      3394 8553 3390 8553 3389 8560 3388 8560
      3387 8562 3388 8563 3386 8566 3411 8580
      3412 8579 3414 8582
TIME...MOT...LOC 2103Z 161DEG 8KT 3397 8559

$$

GRANTHAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 3:37 PM CDT	Special Weather Statement	BMX	Jefferson	38 min
Jun 23, 3:44 PM CDT	Areal Flood Advisory	BMX	Jefferson	3 hr
Jun 23, 4:38 PM CDT	Special Weather Statement	BMX	St. Clair	52 min
Jun 23, 4:59 PM CDT	Special Weather Statement	BMX	Chambers, Lee	46 min
Jun 23, 5:07 PM CDT	Special Weather Statement	BMX	Barbour	38 min
Jun 23, 5:22 PM CDT	Flash Flood Warning	BMX	Chambers, Lee	3 hr

Nearby

Special Weather Statements in Alabama, 2014 Every special weather statement in 2014

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.