Alert archive / Alabama / Special Weather Statements in 2012
Special Weather Statement, NWS Huntsville, AL
NWS Huntsville, AL issued this special weather statement at Jul 8, 2012, 3:39 PM CDT for Limestone County, Alabama. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2012, 3:39 PM CDT (20:39 UTC)
- Expired
- Jul 8, 2012, 4:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Huntsville, AL
County Limestone County, AL
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.7 hours before the alert went out and 162 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
- 2027 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 985 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jul 8, 1:18 PM CDT, 2 hours 21 minutes earlier.
Area forecast discussion, Jul 8, 1:18 PM CDT, 2 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HUNTSVILLE AL 118 PM CDT SUN JUL 8 2012 .DISCUSSION... ANOTHER VERY WARM AND HUMID AFTERNOON IN PROGRESS ACROSS THE TENNESSEE VALLEY. AT 1 PM...TEMPERATURES RANGED FROM 90 TO 95 DEGREES IN MOST LOCATIONS. VISIBLE IMAGERY SHOWS A LARGE EXPANSE OF CUMULUS COVERING ALL BUT FAR NW ALABAMA WITH SOME MORE ENHANCED CONVECTIVE ELEMENTS NOTED...PRIMARILY EAST OF INTERSTATE 65. EARLY AFTERNOON SFC ANALYSIS SHOWS AN ELONGATED FRONT STRETCHING FROM THE DELMARVA WESTWARD ACROSS THE LOWER OHIO RIVER VALLEY INTO THE TEXAS PANHANDLE. LIGHT SERLY FLOW ACROSS THE TN VLY HAS ALLOWED LOW LEVEL MOISTURE TO CREEP UP APPRECIABLY OVER THE LAST SEVERAL DAYS WITH DEWPOINTS AROUND 70F AREAWIDE. THIS HAS ALLOWED SBCAPES TO REACH THE 2-2.5 KJ/KG RANGE THIS AFTERNOON. ALTHOUGH OVERALL FORCING IS WEAK CURRENTLY...ISOLD CONVECTION HAS DEVELOPED ACROSS THE REGION. A WEAK S/W TROUGH (AKIN TO A SHEAR AXIS) WAS POSITIONED FROM SRN MS INTO FAR WRN AL. THIS MAY HELP TO SUSTAIN (EVEN ENHANCE) CONVECTION THROUGH THIS EVENING. THE NAM/HRR SHOW LITTLE CONVECTIVE DEVELOPMENT THROUGH EVENING WHILE SEVERAL ITERATIONS OF THE HIGH RES WRF SHOW SCT DEVELOPMENT SOUTH OF THE SFC FRONT/EAST OF THE SHEAR AXIS ACROSS THE TN VLY. THE SFC FRONT WILL DRIFT/ADVANCE EVER SO SLOWLY SOUTHWARD OVER THE NEXT 24 TO 36 HOURS. THE COMBINATION OF LIGHT SRLY FLOW AND HIGH MOISTURE CONTENT IN THE BLYR WILL LEAD TO ANOTHER VERY WARM NIGHT (AND TRENDED ABOVE GUIDANCE). THE GFS/NAM DIFFER ON CONVECTIVE/PRECIP POTENTIAL ACROSS THE REGION ON MONDAY WITH THE NAM FOCUSING THE ACTIVITY IN THE VCNTY OF THE UPPER LOW TO OUR WEST AND FRONT TO OUR NORTH. HAVE TRENDED BACK A SLIGHT BIT ON POPS...BUT OVERALL REMAIN CLOSER TO THE MORE AGGRESSIVE GFS GIVEN THE INSTABILITY (AND LACK OF CAP) THAT WILL BE IN PLACE IN THE WARM SECTOR. PRECIP POTENTIAL WILL DEFINITELY BE ON THE RISE BY TUESDAY AS A TROUGH BEGINS TO BUILD ACROSS THE NORTHEAST AND PUSHES THE SFC FRONT INTO THE TN VLY. EXPECT SCT/NMRS THUNDERSTORMS ON TUE/TUE NIGHT WHEN CONVERGENCE AND INSTABILITY WILL BE MAXIMIZED. SOME MODEST UPPER LEVEL SUPPORT (20-30 KT FLOW ALOFT) WOULD POINT TOWARD MORE STORM ORGANIZATION. PWATS WILL ALSO BE ON THE ORDER OF 2 INCHES...SO HEAVY/EFFICIENT RAIN PRODUCING STORMS SEEM LIKELY. THE UNSETTLED PERIOD WILL PERSIST INTO THE EXTENDED FORECAST TIME FRAME AS THE WRN US RIDGE/ERN US TROUGH PATTERN BECOMES ESTABLISHED. THIS WILL ALLOW THE AFOREMENTIONED FRONTAL BOUNDARY TO SETTLE IN THE VICINITY OF THE LOWER TENNESSEE VALLEY THROUGH LATE IN THE WORK WEEK. WE MAY ALSO SEE A SERIES OF WEAK...ILL DEFINED...SHORTWAVE TROUGHS ROUND THE BASE OF THE L/W TROUGH AND HELP AMPLIFY PRECIPITATION CHANCES FROM TIME TO TIME. HARD TO PIN DOWN EXACT TIMING GIVEN SOME UNCERTAINTIES IN THE ECMWF/GFS...BUT OVERALL WILL RETAIN MID RANGE POPS THROUGH MUCH OF THE EXTENDED PERIOD. TEMPERATURES WILL ALSO BE ABOUT 10 DEGREES (IF NOT A BIT MORE) COOLER THAN WE'VE SEEN OVER THE PAST TWO WEEKS DUE TO CLOUD COVER AND INCREASED RAIN POTENTIAL. 15 && .AVIATION... /ISSUED 1244 PM CDT SUN JUL 8 2012/ FOR 18Z TAFS...VFR CONDITIONS EXPECTED AT KHSV/KMSL TERMINALS OVER MOST OF THE FORECAST PERIOD. HOWEVER...THE DEVELOPMENT OF SHRA/TSRA IS EXPECTED TODAY IN NORTHERN AL. COVERAGE OF SHRA/TSRA IS EXPECTED TO BE SCATTERED IN NATURE AND TIMING OF ANY ASSOCIATED IMPACTS AT TAF SITES IS NOT POSSIBLE AT THIS POINT. SO...VCTS WAS USED TO DENOTE THE CONVECTIVE POTENTIAL IN TAFS ATTM. CORES WITHIN SHRA/TSRA ARE LIKELY TO BE HEAVY AND WOULD LIKELY RESTRICT CIGS/VIS TO IFR OR PERHAPS LOWER IF A CELL IMPACTED A SITE. WILL HAVE TO MONITOR AND AMEND TAFS IF NECESSARY. SHRA/TSRA COVERAGE IS EXPECTED TO DIMINISH OVERNIGHT...BUT SOME SHRA ACTIVITY MAY LINGER. KDW && .PRELIMINARY POINT TEMPS/POPS... HUNTSVILLE 74 93 73 88 70 / 30 50 50 70 50 SHOALS 74 93 72 89 70 / 30 50 50 70 50 VINEMONT 73 91 72 86 71 / 30 50 50 70 50 FAYETTEVILLE 72 91 72 87 70 / 30 50 50 70 50 ALBERTVILLE 73 91 72 87 71 / 30 50 50 70 50 FORT PAYNE 71 92 71 86 69 / 30 50 50 70 50 && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WEATHER.GOV/HUNTSVILLE.
Hazardous weather outlook, Jul 8, 1:03 PM CDT, 2 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 103 PM CDT SUN JUL 8 2012 ALZ001>010-016-TNZ076-096-097-090115- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 103 PM CDT SUN JUL 8 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...THIS AFTERNOON AND TONIGHT... THUNDERSTORMS ARE EXPECTED TO DEVELOP AND AFFECT PORTIONS OF THE AREA TODAY...ESPECIALLY IN NORTHWEST ALABAMA. A FEW OF THE STORMS MAY BE STRONG OR SEVERE...WITH DAMAGING WIND GUSTS IN ADDITION TO HAIL...HEAVY RAINFALL AND FREQUENT LIGHTNING. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DECREASE IN COVERAGE DURING THE EVENING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY... AS A COLD FRONT STALLS ACROSS THE TENNESSEE VALLEY...THUNDERSTORMS ARE LIKELY ACROSS THE AREA ON MONDAY AND TUESDAY. A FEW OF THESE STORMS COULD BECOME STRONG OR SEVERE...WITH DAMAGING WINDS...HEAVY RAINFALL...AND FREQUENT LIGHTNING. SHOWER AND THUNDERSTORM ACTIVITY IS FORECAST TO LINGER THROUGH THE WEEK WITH THE FRONT STALLED ACROSS THE TENNESSEE VALLEY. SOME THUNDERSTORMS ARE LIKELY TO PRODUCE GUSTY WINDS...VERY HEAVY RAINFALL...AND FREQUENT LIGHTNING. HEAVY RAINFALL AND THE POTENTIAL FOR FLASH FLOODING FROM REPETITIVE THUNDERSTORM ACTIVITY WILL BE THE PRIMARY THREAT DURING THE PERIOD. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME. KDW
In the hours before
Special weather statement, Jul 8, 2:07 PM CDT, 1 hour 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
207 PM CDT SUN JUL 8 2012
ALZ006>008-081945-
MADISON-MARSHALL-MORGAN-
207 PM CDT SUN JUL 8 2012
...SIGNIFICANT WEATHER ADVISORY FOR MADISON...MARSHALL AND MORGAN
COUNTIES UNTIL 245 PM CDT...
AT 207 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WHITESBURG...OR 12 MILES SOUTHEAST OF
REDSTONE ARSENAL...MOVING NORTHEAST AT 5 MPH.
PEA SIZE HAIL...WINDS UP TO 40 MPH...AND HEAVY DOWNPOURS ARE EXPECTED
WITH THIS STORM.
* LOCATIONS IN OR NEAR THE PATH INCLUDE...
WHITESBURG.
FARLEY.
NEW HOPE.
OWENS CROSSROADS...HAMPTON COVE.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.
STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.
&&
LAT...LON 3451 8670 3472 8658 3459 8632 3448 8643
3444 8647 3441 8651 3439 8657
TIME...MOT...LOC 1907Z 209DEG 6KT 3454 8655
KDWSpecial weather statement, Jul 8, 2:44 PM CDT, 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HUNTSVILLE AL 244 PM CDT SUN JUL 8 2012 ALZ002>004-082030- COLBERT-FRANKLIN-LAWRENCE- 244 PM CDT SUN JUL 8 2012 ...SIGNIFICANT WEATHER ADVISORY FOR COLBERT...FRANKLIN AND LAWRENCE COUNTIES UNTIL 330 PM CDT... AT 244 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR LA GRANGE...OR 11 MILES NORTHEAST OF RUSSELLVILLE...MOVING NORTHEAST AT 10 MPH. PEA SIZE HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH INCLUDE... WHITEOAK. HATTON. NE SMITH...LEIGHTON. TOWN CREEK. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. && LAT...LON 3479 8745 3459 8727 3445 8759 3461 8773 TIME...MOT...LOC 1944Z 234DEG 9KT 3459 8756 KDW
Special weather statement, Jul 8, 2:51 PM CDT, 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
251 PM CDT SUN JUL 8 2012
ALZ008-010-082030-
DE KALB-MARSHALL-
251 PM CDT SUN JUL 8 2012
...SIGNIFICANT WEATHER ADVISORY FOR DEKALB AND MARSHALL COUNTIES
UNTIL 330 PM CDT...
AT 251 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR MCVILLE...OR NEAR ALBERTVILLE...MOVING
NORTHEAST AT 10 MPH.
PEA SIZE HAIL AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS STORM.
* LOCATIONS IN OR NEAR THE PATH INCLUDE...
KILPATRICK.
PAINTER...LATHAMVILLE.
WHITON.
CROSSVILLE.
HOPEWELL...GERALDINE.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.
STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.
&&
LAT...LON 3419 8596 3420 8609 3418 8611 3418 8617
3435 8628 3448 8605 3447 8603 3448 8601
3425 8584
TIME...MOT...LOC 1951Z 234DEG 9KT 3430 8614
KDWSpecial weather statement, Jul 8, 3:00 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
300 PM CDT SUN JUL 8 2012
ALZ005>007-082045-
LIMESTONE-MADISON-MORGAN-
300 PM CDT SUN JUL 8 2012
...SIGNIFICANT WEATHER ADVISORY FOR LIMESTONE...MADISON AND MORGAN
COUNTIES UNTIL 345 PM CDT...
AT 255 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS NEAR TRIANA...OR 5 MILES SOUTHWEST
OF REDSTONE ARSENAL...MOVING NORTHWEST AT 10 MPH.
PEA SIZE HAIL...WINDS UP TO 50 MPH...AND FREQUENT CLOUD TO GROUND
LIGHTNING ARE EXPECTED WITH THESE STORMS.
* LOCATIONS IN OR NEAR THE PATH INCLUDE...
MADISON.
MOORESVILLE.
BELLE MINA.
REDSTONE ARSENAL.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.
STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.
&&
LAT...LON 3464 8657 3454 8659 3453 8667 3452 8669
3451 8675 3454 8681 3461 8696 3483 8674
TIME...MOT...LOC 1959Z 128DEG 8KT 3463 8672Special weather statement, Jul 8, 3:33 PM CDT, 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
333 PM CDT SUN JUL 8 2012
ALZ008-082100-
MARSHALL-
333 PM CDT SUN JUL 8 2012
...SIGNIFICANT WEATHER ADVISORY FOR MARSHALL COUNTY UNTIL 400 PM
CDT...
AT 332 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR UNION GROVE...OR 6 MILES NORTHWEST OF
GUNTERSVILLE...MOVING NORTHWEST AT 5 MPH.
PEA SIZE HAIL AND WINDS UP TO 50 MPH ARE EXPECTED WITH THIS STORM.
* LOCATIONS IN OR NEAR THE PATH INCLUDE...
ARAB.
UNION GROVE.
HEBRON...EDDY.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.
&&
LAT...LON 3432 8652 3439 8658 3448 8656 3450 8652
3448 8650 3448 8642 3451 8639 3452 8638
3451 8633 3453 8631 3445 8625 3431 8639
TIME...MOT...LOC 2033Z 128DEG 5KT 3442 8638Special weather statement, Jul 8, 3:39 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
339 PM CDT SUN JUL 8 2012
ALZ005-006-082130-
LIMESTONE-MADISON-
339 PM CDT SUN JUL 8 2012
...SIGNIFICANT WEATHER ADVISORY FOR LIMESTONE AND MADISON COUNTIES
UNTIL 430 PM CDT...
AT 336 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS EXTENDING FROM MADISON SOUTH TO
TRIANA...DRIFTING SLOWLY TO THE NORTHWEST.
PEA SIZE HAIL...WIND GUSTS UP TO 50 MPH...AND FREQUENT CLOUD TO
GROUND LIGHTNING ARE EXPECTED WITH THIS STORM.
* LOCATIONS IN OR NEAR THE PATH INCLUDE...
MOORESVILLE.
BELLE MINA.
CAPSHAW.
HARVEST.
TONEY.
FRENCH MILL.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.
&&
LAT...LON 3492 8665 3472 8662 3456 8663 3456 8668
3457 8667 3459 8669 3459 8671 3455 8676
3455 8683 3457 8688 3463 8698 3477 8691
3493 8678
TIME...MOT...LOC 2038Z 128DEG 8KT 3469 8680The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 1:15 AM CDT | Special Weather Statement | HUN | Lawrence | 30 min |
| Jul 8, 1:44 AM CDT | Special Weather Statement | HUN | Lawrence | 31 min |
| Jul 8, 2:53 AM CDT | Special Weather Statement | HUN | Colbert | 52 min |
| Jul 8, 3:42 AM CDT | Special Weather Statement | HUN | Colbert | 48 min |
| Jul 8, 4:54 AM CDT | Special Weather Statement | HUN | Lauderdale | 51 min |
| Jul 8, 12:13 PM CDT | Special Weather Statement | HUN | DeKalb | 32 min |
| Jul 8, 12:45 PM CDT | Special Weather Statement | HUN | DeKalb | 30 min |
| Jul 8, 1:31 PM CDT | Special Weather Statement | HUN | Colbert, Lauderdale | 44 min |
| Jul 8, 1:45 PM CDT | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale | 30 min |
| Jul 8, 2:07 PM CDT | Special Weather Statement | HUN | Madison | 38 min |
| Jul 8, 2:44 PM CDT | Special Weather Statement | HUN | Lawrence | 46 min |
| Jul 8, 2:51 PM CDT | Special Weather Statement | HUN | Marshall | 39 min |
| Jul 8, 3:00 PM CDT | Special Weather Statement | HUN | Madison | 45 min |
| Jul 8, 3:15 PM CDT | Severe Thunderstorm Warning | HUN | Franklin | 30 min |
| Jul 8, 3:33 PM CDT | Special Weather Statement | HUN | Marshall | 27 min |
| Jul 8, 3:56 PM CDT | Special Weather Statement | HUN | Marshall | 49 min |
| Jul 8, 4:11 PM CDT | Special Weather Statement | HUN | Lawrence | 49 min |
| Jul 8, 4:25 PM CDT | Severe Thunderstorm Warning | HUN | Limestone, Morgan | 50 min |
| Jul 8, 5:10 PM CDT | Special Weather Statement | HUN | Morgan | 50 min |
Nearby
Special Weather Statements in Alabama, 2012Every special weather statement in 2012
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.