Alert archive / Alabama / Wind Advisories in 2011
Wind Advisory 19, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Apr 16, 2011, 4:13 AM CDT for 39 counties in Alabama. It took effect at Apr 16, 2011, 10:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Apr 16, 2011, 4:13 AM CDT (09:13 UTC)
- In effect from
- Apr 16, 2011, 10:00 AM CDT
- Expired
- Apr 16, 2011, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Birmingham, AL
All 39 counties
Autauga County, AL, Barbour County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Etowah County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Marion County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 22 km from the middle of the area, began a volume at 09:16 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 00:00Z, 9.2 hours before the alert went out and 198 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.
- Mixed-layer CAPE
- 406 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 1138 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 373 m²/s²
- 0-3 km storm-relative helicity
- 566 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 11.3
The text
As transmitted, in the capitals the NWS used until 2016.
797 WWUS74 KBMX 160913 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 413 AM CDT SAT APR 16 2011 ...BREEZY CONDITIONS EXPECTED ACROSS CENTRAL ALABAMA TODAY... ALZ011>015-017>050-161715- /O.NEW.KBMX.WI.Y.0019.110416T1500Z-110417T0000Z/ 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- INCLUDING THE CITIES OF...HAMILTON...SULLIGENT...VERNON... FAYETTE...DOUBLE SPRINGS...JASPER...ONEONTA...GADSDEN... ANNISTON...CENTRE...HEFLIN...CARROLLTON...TUSCALOOSA... BIRMINGHAM...HOOVER...COLUMBIANA...PELHAM...ALABASTER... PELL CITY...MOODY...TALLADEGA...SYLACAUGA...ASHLAND...ROANOKE... LIVINGSTON...EUTAW...GREENSBORO...MOUNDVILLE...MARION... CENTREVILLE...CLANTON...ROCKFORD...ALEXANDER CITY...DADEVILLE... VALLEY...LANETT...LAFAYETTE...DEMOPOLIS...LINDEN...SELMA... PRATTVILLE...FORT DEPOSIT...HAYNEVILLE...WETUMPKA...TALLASSEE... MONTGOMERY...TUSKEGEE...UNION SPRINGS...AUBURN...OPELIKA... PHENIX CITY...TROY...EUFAULA 413 AM CDT SAT APR 16 2011 ...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING. WINDS WILL INCREASE TODAY IN THE WAKE OF THE FRONTAL SYSTEM THAT MOVED THROUGH THE AREA LAST NIGHT. SUSTAINED WINDS OF 15 TO 20 MPH WITH GUSTS UP TO 30 MPH WILL BE LIKELY BEGINNING LATE THIS MORNING AND CONTINUING THROUGH THE AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 MPH AND HIGHER... OR WIND GUSTS OF 30 MPH AND HIGHER...ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
1 follow-up statement
964 WWUS74 KBMX 161712 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 1212 PM CDT SAT APR 16 2011 ...BREEZY CONDITIONS EXPECTED ACROSS CENTRAL ALABAMA TODAY... ALZ011>015-017>050-170000- /O.CON.KBMX.WI.Y.0019.000000T0000Z-110417T0000Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN- CHEROKEE-CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR- TALLADEGA-CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON- COOSA-TALLAPOOSA-CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE- MONTGOMERY-MACON-BULLOCK-LEE-RUSSELL-PIKE-BARBOUR- INCLUDING THE CITIES OF...HAMILTON...SULLIGENT...VERNON... FAYETTE...DOUBLE SPRINGS...JASPER...ONEONTA...GADSDEN... ANNISTON...CENTRE...HEFLIN...CARROLLTON...TUSCALOOSA... BIRMINGHAM...HOOVER...COLUMBIANA...PELHAM...ALABASTER... PELL CITY...MOODY...TALLADEGA...SYLACAUGA...ASHLAND...ROANOKE... LIVINGSTON...EUTAW...GREENSBORO...MOUNDVILLE...MARION... CENTREVILLE...CLANTON...ROCKFORD...ALEXANDER CITY...DADEVILLE... VALLEY...LANETT...LAFAYETTE...DEMOPOLIS...LINDEN...SELMA... PRATTVILLE...FORT DEPOSIT...HAYNEVILLE...WETUMPKA...TALLASSEE... MONTGOMERY...TUSKEGEE...UNION SPRINGS...AUBURN...OPELIKA... PHENIX CITY...TROY...EUFAULA 1212 PM CDT SAT APR 16 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. WINDS WILL INCREASE TODAY IN THE WAKE OF THE FRONTAL SYSTEM THAT MOVED THROUGH THE AREA LAST NIGHT. SUSTAINED WINDS OF 15 TO 20 MPH WITH GUSTS UP TO 30 MPH WILL BE LIKELY BEGINNING LATE THIS MORNING AND CONTINUING THROUGH THE AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 MPH AND HIGHER... OR WIND GUSTS OF 30 MPH AND HIGHER...ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 7:03 PM CDT | Tornado Warning | BMX | Autauga, Chilton, Dallas, Perry | 57 min |
| Apr 15, 7:06 PM CDT | Tornado Warning | BMX | Lowndes, Montgomery | 39 min |
| Apr 15, 7:09 PM CDT | Tornado Warning | BMX | Dallas, Marengo, Perry | 66 min |
| Apr 15, 7:33 PM CDT | Areal Flood Advisory | BMX | Marengo | 3 hr |
| Apr 15, 7:41 PM CDT | Tornado Warning | BMX | Chilton, Coosa | 28 min |
| Apr 15, 8:10 PM CDT | Tornado Warning | BMX | Autauga, Chilton, Dallas, Perry | 50 min |
| Apr 15, 8:52 PM CDT | Tornado Warning | BMX | Autauga, Elmore | 38 min |
| Apr 15, 9:15 PM CDT | Tornado Warning | BMX | Autauga, Chilton, Coosa, Elmore | 30 min |
| Apr 15, 9:19 PM CDT | Tornado Warning | BMX | Autauga, Dallas, Lowndes | 41 min |
| Apr 15, 9:37 PM CDT | Tornado Warning | BMX | Coosa, Elmore, Tallapoosa | 38 min |
| Apr 15, 10:32 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Chilton, Coosa, Dallas, Elmore, Lowndes and 2 more | 28 min |
| Apr 15, 10:43 PM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Clay, Cleburne, Coosa, Randolph, Talladega and 1 more | 32 min |
| Apr 15, 10:44 PM CDT | Tornado Warning | BMX | Autauga, Coosa, Elmore | 46 min |
| Apr 15, 11:20 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes, Montgomery, Pike | 40 min |
| Apr 15, 11:21 PM CDT | Tornado Warning | BMX | Chambers, Coosa, Elmore, Tallapoosa | 54 min |
| Apr 15, 11:28 PM CDT | Severe Thunderstorm Warning | BMX | Chambers, Clay, Cleburne, Randolph, Tallapoosa | 47 min |
| Apr 15, 11:52 PM CDT | Severe Thunderstorm Warning | BMX | Bullock, Macon, Montgomery, Pike | 38 min |
| Apr 15, 11:53 PM CDT | Tornado Warning | BMX | Chambers, Randolph, Tallapoosa | 52 min |
| Apr 16, 12:14 AM CDT | Severe Thunderstorm Warning | BMX | Bullock, Montgomery, Pike | 46 min |
| Apr 16, 12:36 AM CDT | Flash Flood Warning | BMX | Chambers, Randolph, Tallapoosa | 3 hr |
| Apr 16, 12:41 AM CDT | Severe Thunderstorm Warning | BMX | Bullock, Lee, Macon, Russell | 34 min |
| Apr 16, 12:55 AM CDT | Severe Thunderstorm Warning | BMX | Bullock, Macon, Montgomery, Pike | 50 min |
| Apr 16, 1:26 AM CDT | Severe Thunderstorm Warning | BMX | Bullock, Lee, Macon, Russell | 49 min |
| Apr 16, 2:11 AM CDT | Severe Thunderstorm Warning | BMX | Lee, Russell | 19 min |
| Apr 16, 2:58 AM CDT | Special Weather Statement | BMX | Russell | 47 min |
Nearby
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.