Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

July 8, 2012Bibb County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 8, 2012, 6:08 PM CDT for Bibb County, Alabama. It was in force for 37 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 8, 2012, 6:08 PM CDT (23:08 UTC)
Expired: Jul 8, 2012, 6:45 PM CDT
In force: 37 min
Issued by: NWS Birmingham, AL

County Bibb County, AL

The radar

The Birmingham radar (KBMX), 25 km from the middle of the area, began a volume at 23:11 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, 11.1 hours before the alert went out and 24 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: 1274 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 898 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: -19 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 8, 3:10 PM CDT, 2 hours 58 minutes earlier.

Area forecast discussion, Jul 8, 3:10 PM CDT, 2 hours 58 minutes before

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Hazardous weather outlook, Jul 8, 1:12 PM CDT, 4 hours 56 minutes before

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In the hours before

Special weather statement, Jul 8, 3:42 PM CDT, 2 hours 26 minutes before

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Special weather statement, Jul 8, 4:40 PM CDT, 1 hour 28 minutes before

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Special weather statement, Jul 8, 6:00 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
600 PM CDT SUN JUL 8 2012

ALZ031-032-082330-
GREENE AL-HALE AL-
600 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HALE AND EASTERN
GREENE COUNTIES UNTIL 630 PM CDT...

AT 600 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR EVANSVILLE...OR 6 MILES EAST OF EUTAW...MOVING
NORTH AT 10 MPH.

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...
  AKRON...
  KNOXVILLE...
  MOUNDVILLE...
  MOUNDVILLE AIRPORT...
  HAVANA...

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 3307 8783 3302 8783 3302 8771 3300 8771
      3300 8755 3273 8773 3280 8793
TIME...MOT...LOC 2300Z 202DEG 8KT 3285 8778

56

Special weather statement, Jul 8, 6:08 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
608 PM CDT SUN JUL 8 2012

ALZ024-025-034-082345-
BIBB AL-JEFFERSON AL-SHELBY AL-
608 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN SHELBY...SOUTHERN
JEFFERSON AND NORTHERN BIBB COUNTIES UNTIL 645 PM CDT...

AT 606 PM CDT...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM 7 MILES SOUTHEAST OF TANNEHILL IRONWORKS STATE PARK...OR
9 MILES NORTHWEST OF MONTEVALLO...MOVING NORTH AT 10 MPH.

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...
  HELENA...
  ALABASTER...
  MAYLENE...
  PEA RIDGE...
  DOGWOOD...

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

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 3324 8709 3325 8707 3328 8707 3337 8704
      3329 8679 3305 8693 3312 8713
TIME...MOT...LOC 2308Z 202DEG 7KT 3317 8699

56

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 7:01 PM CDT	Special Weather Statement	BMX	Sumter	29 min
Jul 8, 3:42 PM CDT	Special Weather Statement	BMX	Marion	33 min
Jul 8, 4:40 PM CDT	Special Weather Statement	BMX	Sumter	35 min
Jul 8, 6:00 PM CDT	Special Weather Statement	BMX	Hale	30 min

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; radar from the NEXRAD Level II archive.