Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Birmingham, AL

July 5, 2016Walker County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 5, 2016, 7:21 PM CDT for Walker 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
Jul 5, 2016, 7:21 PM CDT (00:21 UTC)
Expired
Jul 5, 2016, 7:45 PM CDT
In force
24 min
Issued by
NWS Birmingham, AL

County Walker County, AL

The radar

The Birmingham radar (KBMX), 65 km from the middle of the area, began a volume at 00:24 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 64 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 2016-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 929 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.1939Sfc1 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
929 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1188 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

393 
WWUS84 KBMX 060021
SPSBMX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
721 PM CDT TUE JUL 5 2016
 
ALZ015-024-060045-
WALKER AL-JEFFERSON AL-
721 PM CDT TUE JUL 5 2016

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WALKER AND
NORTHWESTERN JEFFERSON COUNTIES UNTIL 745 PM CDT...

AT 721 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR GORGAS...OR 11 MILES SOUTHWEST OF CORDOVA...MOVING NORTHEAST AT
35 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

THIS STRONG THUNDERSTORM WILL BE NEAR...
  PARRISH...GORGAS STEAM PLANT AND GORGAS AROUND 730 PM CDT. 
  CORDOVA...WEST JEFFERSON...BELOIT AND QUINTON AROUND 740 PM CDT. 
  SUMITON...DORA...BURNWELL AND LYNNS PARK AROUND 745 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE TUTWILER...MILLER
STEAM PLANT...BARNEY...THE WYE...LITTLE SHOAL AND GOODSPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3388 8722 3366 8697 3345 8730 3348 8734
      3349 8733 3349 8730 3348 8730 3348 8729
      3350 8729 3350 8727 3351 8726 3352 8727
      3351 8732 3359 8732 3359 8737 3360 8737
      3360 8738
TIME...MOT...LOC 0021Z 233DEG 29KT 3362 8728 

$$

05

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:52 AM CDTSpecial Weather StatementBMXEtowah23 min
Jul 6, 10:18 AM CDTSpecial Weather StatementBMXCleburne27 min
Jul 6, 10:41 AM CDTSpecial Weather StatementBMXRandolph49 min
Jul 6, 11:19 AM CDTSpecial Weather StatementBMXChambers, Tallapoosa56 min
Jul 6, 12:14 PM CDTSpecial Weather StatementBMXBullock46 min
Jul 6, 12:36 PM CDTSpecial Weather StatementBMXBullock39 min
Jul 6, 12:50 PM CDTSpecial Weather StatementBMXAutauga40 min
Jul 6, 12:52 PM CDTSevere Thunderstorm WarningBMXBarbour, Bullock38 min
Jul 6, 1:12 PM CDTSevere Thunderstorm WarningBMXBarbour, Russell28 min
Jul 6, 1:18 PM CDTSpecial Weather StatementBMXPike42 min
Jul 6, 1:21 PM CDTSpecial Weather StatementBMXLee24 min
Jul 6, 1:28 PM CDTSpecial Weather StatementBMXBarbour47 min
Jul 6, 1:35 PM CDTSevere Thunderstorm WarningBMXPike25 min
Jul 6, 2:06 PM CDTSpecial Weather StatementBMXDallas24 min
Jul 6, 2:11 PM CDTSpecial Weather StatementBMXLowndes49 min
Jul 6, 2:19 PM CDTSevere Thunderstorm WarningBMXLowndes, Montgomery41 min
Jul 6, 2:32 PM CDTSpecial Weather StatementBMXMacon43 min
Jul 6, 2:35 PM CDTSevere Thunderstorm WarningBMXAutauga, Lowndes40 min
Jul 6, 2:46 PM CDTSpecial Weather StatementBMXAutauga44 min
Jul 6, 2:51 PM CDTSpecial Weather StatementBMXLee, Macon54 min
Jul 6, 3:05 PM CDTSpecial Weather StatementBMXMontgomery55 min
Jul 6, 3:23 PM CDTSevere Thunderstorm WarningBMXLee20 min
Jul 6, 3:26 PM CDTSpecial Weather StatementBMXLowndes49 min
Jul 6, 3:39 PM CDTSpecial Weather StatementBMXCherokee36 min
Jul 6, 4:05 PM CDTSpecial Weather StatementBMXChambers25 min
Jul 6, 4:10 PM CDTSpecial Weather StatementBMXRandolph20 min
Jul 6, 4:16 PM CDTSpecial Weather StatementBMXElmore29 min
Jul 6, 4:32 PM CDTSpecial Weather StatementBMXRandolph28 min
Jul 6, 4:40 PM CDTSpecial Weather StatementBMXCalhoun50 min
Jul 6, 4:44 PM CDTSpecial Weather StatementBMXCoosa31 min
Jul 6, 4:59 PM CDTSpecial Weather StatementBMXCoosa31 min
Jul 6, 5:08 PM CDTSpecial Weather StatementBMXBibb37 min
Jul 6, 5:15 PM CDTSpecial Weather StatementBMXCoosa15 min
Jul 6, 5:27 PM CDTSpecial Weather StatementBMXRandolph18 min
Jul 6, 5:31 PM CDTSpecial Weather StatementBMXChilton44 min
Jul 6, 5:45 PM CDTSpecial Weather StatementBMXRandolph15 min
Jul 6, 6:06 PM CDTSpecial Weather StatementBMXBibb39 min
Jul 6, 6:40 PM CDTSpecial Weather StatementBMXSumter35 min

Nearby

Special Weather Statements in Alabama, 2016Every special weather statement in 2016

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.