Alert archive / Alabama / Wind Advisories in 2011
Wind Advisory 10, NWS Huntsville, AL
NWS Huntsville, AL issued this wind advisory at Apr 19, 2011, 3:21 AM CDT for 9 counties in Alabama; Franklin County, Lincoln County, Moore County, Tennessee. 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, 3:21 AM CDT (08:21 UTC)
- In effect from
- Apr 19, 2011, 12:00 PM CDT
- Expired
- Apr 19, 2011, 6:59 PM CDT
- In force
- 7 hr
- Issued by
- NWS Huntsville, AL
Counties Colbert County, AL, Cullman County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Morgan County, AL, Franklin County, TN, Lincoln County, TN, Moore County, TN
The radar
The Northeast Alabama radar (KHTX), 78 km from the middle of the area, began a volume at 08:20 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
Nashville Metro, TN (KBNA), launched 00:00Z, 8.4 hours before the alert went out and 155 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
- 428 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1233 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
262 WWUS74 KHUN 190821 NPWHUN URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HUNTSVILLE AL 321 AM CDT TUE APR 19 2011 ...BREEZY CONDITIONS EXPECTED TODAY... .GUSTY SOUTHERLY WINDS WILL DEVELOP ACROSS THE REGION THIS AFTERNOON AHEAD OF A LOW PRESSURE SYSTEM WHICH IS STRENGTHENING OVER THE MIDWEST. ALZ001>007-009-016-TNZ076-096-097-191715- /O.NEW.KHUN.WI.Y.0010.110419T1700Z-110420T0000Z/ LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- JACKSON-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS... RUSSELLVILLE...MOULTON...ATHENS...HUNTSVILLE...DECATUR... SCOTTSBORO...CULLMAN...LYNCHBURG...FAYETTEVILLE...WINCHESTER 321 AM CDT TUE APR 19 2011 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING. * TIMING: WINDS WILL GRADUALLY INCREASE THIS AFTERNOON...WITH THE STRONGEST WINDS EXPECTED BETWEEN 3 AND 6 PM. AS SUNSET APPROACHES...WIND SPEEDS WILL BEGIN TO TAPER OFF. * WINDS: SUSTAINED WINDS AROUND 15 TO 25 MPH WITH GUSTS FROM 35 TO 40 MPH ARE EXPECTED DURING THE PERIOD. LOCATIONS CLOSEST TO THE ALABAMA-MISSISSIPPI BORDER AND IN HIGHER ELEVATIONS TO THE EAST WILL EXPERIENCE THE STRONGEST WINDS. * IMPACTS:WIND SPEEDS THIS STRONG MAY CAUSE LOOSE OBJECTS OUTDOORS TO BLOW AROUND. SMALL OR WEAKENED TREE LIMBS MAY ALSO BE BROKEN. MOTORISTS IN HIGH PROFILE VEHICLES OR ON ELEVATED ROADWAYS IN OPEN AREAS MAY EXPERIENCE DIFFICULT DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS IN EXCESS OF 25 MPH... OR GUSTS IN EXCESS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...ENSURE ALL LOOSE OUTDOOR OBJECTS REMAIN SECURE...INCLUDING PATIO FURNITURE AND TRASH CANS. && $$
2 follow-up statements
443 WWUS74 KHUN 191737 NPWHUN URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HUNTSVILLE AL 1237 PM CDT TUE APR 19 2011 ...BREEZY CONDITIONS EXPECTED THIS AFTERNOON... .GUSTY SOUTHERLY WINDS WILL DEVELOP ACROSS THE REGION THIS AFTERNOON AHEAD OF A LOW PRESSURE SYSTEM...WHICH IS STRENGTHENING OVER THE MIDWEST. ALZ001>007-009-016-TNZ076-096-097-200000- /O.CON.KHUN.WI.Y.0010.000000T0000Z-110420T0000Z/ LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- JACKSON-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS... RUSSELLVILLE...MOULTON...ATHENS...HUNTSVILLE...DECATUR... SCOTTSBORO...CULLMAN...LYNCHBURG...FAYETTEVILLE...WINCHESTER 1237 PM CDT TUE APR 19 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * TIMING: WINDS WILL GRADUALLY INCREASE DURING THE AFTERNOON...WITH THE STRONGEST WINDS EXPECTED BETWEEN 3 AND 6 PM. AS SUNSET APPROACHES...WIND SPEEDS WILL BEGIN TO TAPER OFF. * WINDS: SUSTAINED WINDS AROUND 15 TO 25 MPH WITH GUSTS FROM 35 TO 40 MPH ARE EXPECTED DURING THE PERIOD. LOCATIONS CLOSEST TO THE ALABAMA-MISSISSIPPI BORDER AND IN HIGHER ELEVATIONS TO THE EAST WILL EXPERIENCE THE STRONGEST WINDS. * IMPACTS: WIND SPEEDS THIS STRONG MAY CAUSE LOOSE OBJECTS OUTDOORS TO BLOW AROUND. SMALL OR WEAKENED TREE LIMBS MAY ALSO BE BROKEN. MOTORISTS IN HIGH PROFILE VEHICLES OR ON ELEVATED ROADWAYS IN OPEN AREAS MAY EXPERIENCE DIFFICULT DRIVING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS IN EXCESS OF 25 MPH... OR GUSTS IN EXCESS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. IN ADDITION...ENSURE ALL LOOSE OUTDOOR OBJECTS REMAIN SECURE...INCLUDING PATIO FURNITURE AND TRASH CANS. && $$
038 WWUS74 KHUN 192359 NPWHUN URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE HUNTSVILLE AL 659 PM CDT TUE APR 19 2011 ALZ001>007-009-016-TNZ076-096-097-200100- /O.CAN.KHUN.WI.Y.0010.000000T0000Z-110420T0000Z/ LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- JACKSON-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- INCLUDING THE CITIES OF...FLORENCE...MUSCLE SHOALS... RUSSELLVILLE...MOULTON...ATHENS...HUNTSVILLE...DECATUR... SCOTTSBORO...CULLMAN...LYNCHBURG...FAYETTEVILLE...WINCHESTER 659 PM CDT TUE APR 19 2011 ...WIND ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN HUNTSVILLE HAS CANCELLED THE WIND ADVISORY. WINDS WILL CONTINUE TO DIMINISH THIS EVENING AND AS A RESULT THE WIND ADVISORY HAS BEEN CANCELLED. $$
What forecasters said that day
The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before this wind advisory went out at Apr 18, 9:16 PM CDT, 6 hours 5 minutes earlier.
Area forecast discussion, Apr 18, 9:16 PM CDT, 6 hours 5 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE HUNTSVILLE AL 1228 AM CDT TUES APR 19 2011 .UPDATE...FOR 06Z TAFS. && .AVIATION... STLT SHOWS AN MVFR STRATUS DECK HEADING NORTH TOWARDS NRN AL IN GOOD SOUTHERLY FLOW. MVFR CONDITIONS WILL LIKELY BEGIN ARND 08-09Z TONIGHT FOR BOTH KMSL AND KHSV. DAYTIME MIXING SHOULD HELP DISPERSE THE STRATUS DECK TO SOME EXTENT...PERHAPS AS EARLY AS 15Z. ONCE MIXING DEVELOPS TUES MORNING...SOUTHWEST WINDS WILL QUICKLY BECOME GUSTY. && .DISCUSSION... /ISSUED 916 PM CDT MON APR 18 2011/ WEAK UPPER DISTURBANCE HAS MOVED SOUTH OF THE TN VALLEY AND BASED ON STLT/RADAR TRENDS...WENT AHEAD AND TOOK OUT LOW POPS OVER OUR WRN ZONES FOR TONIGHT. MOST OF THE PCPN WILL BE WELL NORTH OF OUR AREA...ALONG A WARM FRONT EXTENDING ACROSS PORTIONS OF THE MIDWEST AND OHIO VALLEY. WITH SOUTH WINDS AND CLOUDS...TEMPS WILL ONLY DROP INTO THE LOWER 60S OVER MOST OF THE CWA...A LITTLE COOLER OVER NERN AL. && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && AVIATION...KDW DISCUSSION...007
Hazardous weather outlook, Apr 18, 8:57 PM CDT, 6 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 857 PM CDT MON APR 18 2011 ALZ001>010-016-TNZ076-096-097-191000- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 857 PM CDT MON APR 18 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...TONIGHT... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... THUNDERSTORMS MAY DEVELOP AS EARLY AS TUESDAY EVENING...BUT ARE EXPECTED MAINLY ON WEDNESDAY AS A COLD FRONT MOVES INTO THE TENNESSEE VALLEY. SOME STRONG OR SEVERE STORMS ARE POSSIBLE DURING THIS PERIOD...WITH LOCALLY HEAVY RAINFALL...DAMAGING WINDS AND LARGE HAIL AS THE PRIMARY THREATS. CHANCES FOR THUNDERSTORM ACTIVITY WILL LINGER INTO THE WEEKEND AS THE FRONT STALLS IN THE AREA AND THEN MOVES BACK TO THE NORTH AS A WARM FRONT. A FEW STRONG STORMS ARE POSSIBLE DURING THIS PERIOD WITH LOCALLY HEAVY RAINFALL AS THE GREATEST THREAT. HOWEVER...THE AMOUNT OF RAIN THAT OCCURS WILL LARGELY DEPEND ON THE LOCATION WHERE THE FRONT STALLS. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME.
Nearby
Wind Advisories in Alabama, 2011Wind Advisories in Tennessee, 2011Every wind advisory in 2011
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.