Alert archive / Alabama / Wind Advisories in 2012
Wind Advisory 10, NWS Birmingham, AL
NWS Birmingham, AL issued this wind advisory at Oct 30, 2012, 3:49 AM CDT for 8 counties in Alabama. It took effect at Oct 30, 2012, 10:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Oct 30, 2012, 3:49 AM CDT (08:49 UTC)
- In effect from
- Oct 30, 2012, 10:00 AM CDT
- Expired
- Oct 30, 2012, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Birmingham, AL
Counties Calhoun County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Etowah County, AL, Randolph County, AL, St. Clair County, AL, Talladega County, AL
The radar
The Birmingham radar (KBMX), 102 km from the middle of the area, began a volume at 08:48 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, 8.8 hours before the alert went out and 102 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
- 1757 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
966 WWUS74 KBMX 300849 NPWBMX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE BIRMINGHAM AL 349 AM CDT TUE OCT 30 2012 ...BREEZY CONDITIONS WILL CONTINUE TODAY ACROSS NORTHEASTERN PORTIONS OF CENTRAL ALABAMA... .BREEZY NORTHWEST WINDS WILL CONTINUE TODAY DUE TO A TIGHT PRESSURE GRADIENT ASSOCIATED WITH THE INTERACTION OF HIGH PRESSURE TO THE WEST AND POST-TROPICAL SYSTEM SANDY TO THE NORTHEAST. NORTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS OF 30 MPH CAN BE EXPECTED THIS AFTERNOON MAINLY ACROSS THE HIGHER TERRAIN. ALZ018>021-026>029-310000- /O.NEW.KBMX.WI.Y.0010.121030T1500Z-121031T0000Z/ ETOWAH-CALHOUN-CHEROKEE-CLEBURNE-ST. CLAIR-TALLADEGA-CLAY- RANDOLPH- INCLUDING THE CITIES OF...GADSDEN...ANNISTON...CENTRE...HEFLIN... PELL CITY...MOODY...TALLADEGA...SYLACAUGA...ASHLAND...ROANOKE 349 AM CDT TUE OCT 30 2012 ...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. * TIMING...OF THE STRONGEST WINDS WILL BE THROUGH LATE AFTERNOON. * WINDS...WILL BE BRISK WITH SUSTAINED WINDS OF 15 TO 25 MPH AND GUSTS UP TO 35 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 24 MPH AND HIGHER... OR WIND GUSTS OF 36 MPH AND HIGHER...ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$ MA
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.