Alert archive / Alabama / Wind Advisories in 2011
Wind Advisory 20, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Apr 19, 2011, 3:51 AM CDT for 15 counties in Alabama. It took effect at Apr 19, 2011, 12:00 PM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 19, 2011, 3:51 AM CDT (08:51 UTC)
- In effect from
- Apr 19, 2011, 12:00 PM CDT
- Expired
- Apr 19, 2011, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Birmingham, AL
Counties Bibb County, AL, Blount County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Marengo County, AL, Marion County, AL, Perry County, AL, Pickens County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 76 km from the middle of the area, began a volume at 08:51 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, 8.9 hours before the alert went out and 75 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2116 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
554 WWUS74 KBMX 190851 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 351 AM CDT TUE APR 19 2011 ...DENSE FOG THIS MORNING AND GUSTY WINDS THIS AFTERNOON... DENSE FOG IS EXPECTED TO DEVELOP FOR AREAS ALONG AND SOUTH OF INTERSTATE 85 THROUGH 9 AM THIS MORNING. GUSTY WINDS ARE ALSO EXPECTED FOR AREAS WEST OF INTERSTATE 65 THIS AFTERNOON. ALZ042-044>046-048>050-191400- /O.NEW.KBMX.FG.Y.0006.110419T0851Z-110419T1400Z/ LOWNDES-MONTGOMERY-MACON-BULLOCK-RUSSELL-PIKE-BARBOUR- INCLUDING THE CITIES OF...FORT DEPOSIT...HAYNEVILLE... MONTGOMERY...TUSKEGEE...UNION SPRINGS...PHENIX CITY...TROY... EUFAULA 351 AM CDT TUE APR 19 2011 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A DENSE FOG ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM CDT THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN... USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU. && $$ ALZ011>015-017-022>024-030>034-039-191500- /O.NEW.KBMX.WI.Y.0020.110419T1700Z-110420T0000Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-PICKENS-TUSCALOOSA- JEFFERSON-SUMTER-GREENE-HALE-PERRY-BIBB-MARENGO- INCLUDING THE CITIES OF...HAMILTON...SULLIGENT...VERNON... FAYETTE...DOUBLE SPRINGS...JASPER...ONEONTA...CARROLLTON... TUSCALOOSA...BIRMINGHAM...HOOVER...LIVINGSTON...EUTAW... GREENSBORO...MOUNDVILLE...MARION...CENTREVILLE...DEMOPOLIS... LINDEN 351 AM CDT TUE APR 19 2011 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 MPH AND HIGHER... OR WIND GUSTS OF 30 MPH AND HIGHER...ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
1 follow-up statement
145 WWUS74 KBMX 191435 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 935 AM CDT TUE APR 19 2011 ...GUSTY WINDS EXPECTED THIS AFTERNOON... GUSTY WINDS ARE ALSO EXPECTED FOR AREAS WEST OF INTERSTATE 65 THIS AFTERNOON. ALZ011>015-017-022>024-030>034-039-200000- /O.CON.KBMX.WI.Y.0020.110419T1700Z-110420T0000Z/ MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-PICKENS-TUSCALOOSA- JEFFERSON-SUMTER-GREENE-HALE-PERRY-BIBB-MARENGO- INCLUDING THE CITIES OF...HAMILTON...SULLIGENT...VERNON... FAYETTE...DOUBLE SPRINGS...JASPER...ONEONTA...CARROLLTON... TUSCALOOSA...BIRMINGHAM...HOOVER...LIVINGSTON...EUTAW... GREENSBORO...MOUNDVILLE...MARION...CENTREVILLE...DEMOPOLIS... LINDEN 935 AM CDT TUE APR 19 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 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 19, 3:51 AM CDT | Dense Fog Advisory | BMX | Barbour, Bullock, Lowndes, Macon, Montgomery, Pike and 1 more | 5 hr |
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.