Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

March 8, 2011Lamar County, Alabama

NWS Birmingham, AL issued this special weather statement at Mar 8, 2011, 6:21 PM CST for Lamar County, Alabama. It was in force for 24 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
Mar 8, 2011, 6:21 PM CST (00:21 UTC)
Expired
Mar 8, 2011, 6:45 PM CST
In force
24 min
Issued by
NWS Birmingham, AL

County Lamar County, AL

The radar

The Columbus AFB radar (KGWX), 31 km from the middle of the area, began a volume at 00:22 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 00:00Z, 0.4 hours before the alert went out and 134 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-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2011-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2011-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 365 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1808 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
365 m²/s²
0-3 km storm-relative helicity
712 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.

247 
WWUS84 KBMX 090021
SPSBMX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
621 PM CST TUE MAR 8 2011

ALZ012-090045-
LAMAR AL-
621 PM CST TUE MAR 8 2011

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN LAMAR COUNTY UNTIL 645
PM CST...

AT 621 PM CST...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM 6 MILES NORTH OF MILLPORT...MOVING NORTHEAST AT 45 MPH.

PEA SIZE HAIL IS EXPECTED WITH THIS STORM.

THIS STORM WILL BE NEAR...
CODY AROUND 630 PM CST.
BLOOMING GROVE AROUND 635 PM CST.


&&

LAT...LON 3394 8796 3391 8795 3368 8795 3353 8811
      3367 8825
TIME...MOT...LOC 0021Z 230DEG 37KT 3366 8809

$$

73

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 8, 7:06 PM CSTAreal Flood WarningBMXLamar3 hr
Mar 8, 8:42 PM CSTAreal Flood AdvisoryBMXGreene, Hale, Marengo, Pickens, Sumter3 hr
Mar 8, 9:00 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter4 days
Mar 8, 9:49 PM CSTRiver Flood WarningBMXBibb, Jefferson, Shelby36 hr
Mar 8, 9:49 PM CSTRiver Flood WarningBMXBibb, Dallas, Perry61 hr
Mar 8, 10:33 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter9 days
Mar 8, 10:38 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo8 days
Mar 8, 11:21 PM CSTAreal Flood AdvisoryBMXGreene, Hale, Lamar, Marengo, Pickens, Sumter3 hr
Mar 8, 11:55 PM CSTSpecial Weather StatementBMXDallas, Perry50 min
Mar 9, 1:02 AM CSTAreal Flood AdvisoryBMXFayette, Jefferson, Marion, Tuscaloosa, Walker, Winston3 hr
Mar 9, 1:15 AM CSTSpecial Weather StatementBMXMarengo30 min
Mar 9, 1:37 AM CSTSpecial Weather StatementBMXDallas38 min
Mar 9, 2:29 AM CSTFlash Flood WarningBMXFayette, Lamar, Marion, Pickens, Tuscaloosa, Walker and 1 more6 hr
Mar 9, 2:47 AM CSTSpecial Weather StatementBMXPerry43 min
Mar 9, 3:32 AM CSTAreal Flood AdvisoryBMXGreene, Hale, Marengo, Perry, Sumter3 hr
Mar 9, 3:56 AM CSTAreal Flood AdvisoryBMXBibb, Blount, Jefferson, Shelby, Tuscaloosa3 hr
Mar 9, 4:21 AM CSTFlash Flood WarningBMXBibb, Greene, Hale, Marengo, Perry, Sumter and 1 more6 hr
Mar 9, 4:38 AM CSTSevere Thunderstorm WarningBMXMarengo, Sumter37 min
Mar 9, 4:59 AM CSTSpecial Weather StatementBMXBibb, Hale, Jefferson, Perry, Tuscaloosa46 min
Mar 9, 5:24 AM CSTFlash Flood WarningBMXBibb, Blount, Chilton, Dallas, Jefferson, Perry and 3 more6 hr
Mar 9, 5:27 AM CSTRiver Flood WarningBMXJefferson16 hr
Mar 9, 5:48 AM CSTSpecial Weather StatementBMXAutauga, Blount, Calhoun, Chilton, Coosa, Dallas and 5 more57 min
Mar 9, 6:00 AM CSTFlash Flood WarningBMXBlount, Calhoun, Cherokee, Etowah, St. Clair, Shelby and 1 more4 hr
Mar 9, 6:46 AM CSTSpecial Weather StatementBMXClay, Coosa, Elmore, Lowndes, Montgomery, Talladega and 1 more59 min
Mar 9, 6:53 AM CSTSpecial Weather StatementBMXClay, Coosa, Elmore, Lowndes, Montgomery, Talladega and 1 more52 min
Mar 9, 7:38 AM CSTSpecial Weather StatementBMXBullock, Chambers, Lee, Macon, Montgomery, Pike and 1 more67 min
Mar 9, 8:25 AM CSTAreal Flood WarningBMXLamar24 hr
Mar 9, 8:34 AM CSTSpecial Weather StatementBMXBarbour, Bullock, Chambers, Lee, Macon, Russell56 min
Mar 9, 8:53 AM CSTAreal Flood AdvisoryBMXClay, Cleburne, Coosa, Talladega6 hr
Mar 9, 9:25 AM CSTRiver Flood WarningBMXJefferson, Tuscaloosa, Walker59 hr
Mar 9, 9:46 AM CSTSevere Thunderstorm WarningBMXPike29 min
Mar 9, 10:00 AM CSTAreal Flood WarningBMXTalladega12 hr
Mar 9, 10:03 AM CSTTornado WarningBMXBarbour, Pike42 min
Mar 9, 10:40 AM CSTAreal Flood AdvisoryBMXChambers, Randolph, Tallapoosa3 hr
Mar 9, 10:46 AM CSTSevere Thunderstorm WarningBMXBarbour29 min
Mar 9, 10:59 AM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Tuscaloosa33 hr
Mar 9, 10:59 AM CSTRiver Flood WarningBMXGreene, Hale, Marengo, Sumter, Tuscaloosa68 hr
Mar 9, 11:18 AM CSTFlash Flood WarningBMXCleburne3 hr
Mar 9, 12:04 PM CSTRiver Flood WarningBMXChilton, Coosa, Elmore, Shelby, Talladega45 hr
Mar 9, 3:56 PM CSTSpecial Weather StatementBMXMarion34 min
Mar 9, 4:00 PM CSTSpecial Weather StatementBMXLamar30 min
Mar 9, 4:04 PM CSTSpecial Weather StatementBMXPickens26 min
Mar 9, 4:24 PM CSTSpecial Weather StatementBMXFayette36 min
Mar 9, 4:45 PM CSTSpecial Weather StatementBMXPickens30 min
Mar 9, 4:56 PM CSTSpecial Weather StatementBMXWinston34 min
Mar 9, 5:00 PM CSTSpecial Weather StatementBMXFayette30 min
Mar 9, 5:14 PM CSTSpecial Weather StatementBMXFayette31 min
Mar 9, 5:31 PM CSTSpecial Weather StatementBMXWinston29 min
Mar 9, 5:36 PM CSTSpecial Weather StatementBMXWalker39 min
Mar 9, 5:46 PM CSTSpecial Weather StatementBMXTuscaloosa44 min

Nearby

Special Weather Statements in Alabama, 2011Every 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.