Alert archive / Alabama / Wind Advisories in 2016
Wind Advisory 9, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Dec 17, 2016, 11:45 PM CST for 28 counties in Alabama. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Dec 17, 2016, 11:45 PM CST (05:45 UTC)
- Expired
- Dec 18, 2016, 12:00 PM CST
- In force
- 12 hr
- Issued by
- NWS Birmingham, AL
All 28 counties
Bibb County, AL, Blount County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Etowah 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, Randolph 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), 21 km from the middle of the area, began a volume at 05:42 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, 5.8 hours before the alert went out and 20 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
- 84 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 455 m²/s²
- 0-3 km storm-relative helicity
- 541 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
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
1 follow-up statement
307 WWUS74 KBMX 181309 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 709 AM CST SUN DEC 18 2016 ...WINDY CONDITIONS STILL EXPECTED BEHIND A COLD FRONT... .A STRONG COLD FRONT HAS MOVED THROUGH MOST OF CENTRAL ALABAMA THIS MORNING. WINDS HAVE SHIFTED TO THE NORTH NORTHWEST AT 10 TO 20 MPH WITH A FEW GUSTS 30 TO 35 MPH. THE GUSTS SHOULD SUBSIDE BY EARLY THIS AFTERNOON. ALZ011>015-017>039-181800- /O.CON.KBMX.WI.Y.0009.000000T0000Z-161218T1800Z/ 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- 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 709 AM CST SUN DEC 18 2016 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * TIMING...OF THE HIGHEST GUSTS WILL BE THROUGH NOON. * WINDS...15 TO 20 MPH WITH GUSTS TO 35 MPH * IMPACTS...THESE WINDS MAY BREAK TREE BRANCHES AND DOWN WEAKER TREES. SECURE ALL OUTSIDE ITEMS THAT MAY BE IMPACTED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT WINDS OF 35 MPH 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 |
|---|---|---|---|---|
| Dec 18, 12:47 AM CST | Special Weather Statement | BMX | Marion | 28 min |
| Dec 18, 1:05 AM CST | Special Weather Statement | BMX | Marion | 25 min |
| Dec 18, 1:35 AM CST | Special Weather Statement | BMX | Marion | 40 min |
| Dec 18, 2:12 AM CST | Special Weather Statement | BMX | Winston | 33 min |
| Dec 18, 2:15 AM CST | Special Weather Statement | BMX | Fayette | 30 min |
| Dec 18, 3:06 AM CST | Special Weather Statement | BMX | Walker | 24 min |
| Dec 18, 3:12 AM CST | Special Weather Statement | BMX | Tuscaloosa | 33 min |
| Dec 18, 4:55 AM CST | Special Weather Statement | BMX | Bibb | 35 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.