Severe Thunderstorm Warning 112, NWS Huntsville, AL

058 
WWUS54 KHUN 182302
SVSHUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
602 PM CDT FRI MAY 18 2012

ALC083-182315-
/O.CON.KHUN.SV.W.0112.000000T0000Z-120518T2315Z/
LIMESTONE AL-
602 PM CDT FRI MAY 18 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR CENTRAL LIMESTONE COUNTY...

AT 602 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ATHENS...MOVING WEST AT 5 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
ELKMONT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IF 
POSSIBLE.  AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.

&&

LAT...LON 3493 8679 3475 8679 3475 8705 3495 8703
TIME...MOT...LOC 2302Z 095DEG 6KT 3485 8692

$$

KULA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HUNTSVILLE AL
345 PM CDT FRI MAY 18 2012

.DISCUSSION...
THERE HAS BEEN VERY LITTLE CHANGE IN THE SYNOPTIC PATTERN IN PLACE
ACROSS THE TENNESSEE VALLEY SINCE THIS TIME YESTERDAY...WITH AN
ELONGATED MID/UPPER-LEVEL LOW EXTENDING FROM CENTRAL GEORGIA
NORTHEASTWARD OFF THE COAST OF THE MID-ATLANTIC STATES AND A SMALL
BUT STRENGTHENING MID-TROPOSPHERIC RIDGE LOCATED BETWEEN THE SOUTHERN
GREAT LAKES AND THE OHIO RIVER. A WEAK 500-MB SHEAR AXIS REMAINS IN
PLACE ACROSS MUCH OF TENNESSEE AS WELL AS NORTHERN PORTIONS OF
GEORGIA/ALABAMA/MISSISSIPPI...AND THIS WILL CONTINUE TO PROVIDE AN
ENVIRONMENT CONDUCIVE FOR THE DEVELOPMENT OF ISOLATED TO WIDELY
SCATTERED AFTERNOON CONVECTION. AN EAST TO SOUTHEASTERLY STEERING
FLOW ON THE NORTHWESTERN FLANK OF THE SOUTHEASTERN U.S. UPPER CYCLONE
WILL PERSIST FOR THE REMAINDER OF THE AFTERNOON...AND FOR THIS REASON
HAVE MAINTAINED A SLIGHT CHANCE OF SHOWERS/STORMS INTO THE FIRST FEW
HOURS OF THE EVENING PERIOD FOR THE WESTERN HALF OF THE FORECAST
AREA. WEAK LOWER-MID TROPOSPHERIC WINDS /GENERALLY AOB 15 KNOTS/ WILL
LEAD TO LITTLE THREAT FOR ORGANIZED SEVERE CONVECTION ALTHOUGH STRONG
SURFACE HEATING AND VERY STEEP LOW-LEVEL LAPSE RATES WILL PROMOTE A
SMALL HAIL AND GUSTY WIND THREAT WITH THE STRONGEST CELLS.

SIMILAR CONDITIONS TO WHAT HAVE BEEN EXPERIENCED RECENTLY ARE
EXPECTED TO PERSIST FOR THE REMAINDER OF THE SHORT TERM FORECAST
PERIOD. MODELS CONTINUE TO SUGGEST THAT THE MID-LEVEL HIGH TO THE
NORTH OF THE OHIO RIVER WILL STRENGTHEN AND EXPAND NORTHEASTWARD
ACROSS NEW ENGLAND FROM TONIGHT THROUGH TOMORROW NIGHT...IN ADVANCE
OF A STRONG MID-LEVEL VORT MAX LIFTING NORTHEASTWARD ACROSS THE
CENTRAL PLAINS. MEANWHILE...THE SOUTHEASTERN CONUS MID/UPPER-LEVEL
LOW IS FORECAST TO SPLIT INTO TWO SEPARATE VORTICES -- THE STRONGEST
OF WHICH WILL REMAIN SITUATED OFF THE COAST OF THE OUTER BANKS OF
NORTH CAROLINA WHILE THE WEAKER LOW REMAINS NEARLY STATIONARY ACROSS
COASTAL GEORGIA/SOUTH CAROLINA. ALTHOUGH THE INITIAL SHEAR AXIS
CURRENTLY IN PLACE OVER THE REGION MAY TEND TO SHIFT SOUTHWESTWARD
DURING THIS PERIOD...THE POTENTIAL EXISTS FOR ADDITIONAL WAVES TO
PASS OVERHEAD IN THE NORTHEAST FLOW ALOFT...AND WILL MAINTAIN SLIGHT
CHANCES FOR AFTERNOON AND EARLY EVENING SHOWERS/STORMS BOTH TOMORROW
AND ON SUNDAY. FORECAST SOUNDINGS INDICATE THAT STEERING FLOW WILL
ONCE AGAIN BE FROM THE EAST-SOUTHEAST TOMORROW...BUT SHOULD BACK TO
THE NORTH BY SUNDAY AS THE STRENGTHENING MID-LEVEL HIGH OVER NEW
ENGLAND FORCES THE CAROLINAS UPPER LOW TO RETROGRADE INLAND. BY
SUNDAY NIGHT...SHORTWAVE RIDGING ALOFT BUILDING ACROSS THE LOWER
MISSISSIPPI VALLEY IN ADVANCE OF A MORE PRONOUNCED LONG WAVE TROUGH
OVER CENTRAL CANADA MAY ALLOW A LOOSELY-ORGANIZED COMPLEX OF
THUNDERSTORMS TO APPROACH THE AREA IN NORTHWEST FLOW ALOFT. HAVE
INCREASED POPS INTO THE LOW CHANCE RANGE FOR THE NORTHWEST HALF OF
THE FORECAST AREA EARLY MONDAY MORNING TO ACCOUNT FOR THIS
POSSIBILITY. IN TERMS OF THE TEMPERATURE FORECAST...VERY LITTLE
CHANGE IS EXPECTED OVER THE NEXT SEVERAL DAYS...WITH HIGHS REACHING
THE MID 80S-90 DEGREE RANGE EACH AFTERNOON AND LOWS GENERALLY FALLING
INTO THE UPPER 50S/LOWER 60S -- WITH THE EXCEPTION OF VALLEY AREAS IN
THE NORTHEAST WHERE READINGS MAY REACH THE MID 50S. PATCHY FOG WILL
ALSO REMAIN A POSSIBILITY EACH NIGHT...BUT THIS SHOULD PRIMARILY BE
CONFINED TO VALLEYS AND LOCATIONS NEAR BODIES OF WATER.

RAIN CHANCES STILL APPEAR TO BE HIGHEST AT THE BEGINNING OF THE
EXTENDED FORECAST PERIOD...AS THE REMNANTS OF THE PREVIOUSLY
MENTIONED SUNDAY NIGHT MCS MAY LINGER IN THE REGION FOR MUCH OF THE
DAY ON MONDAY. OTHERWISE...EXPECT CHANCES FOR SHOWERS AND STORMS TO
REMAIN FAIRLY HIGH FROM MONDAY NIGHT INTO TUESDAY AS THE SOUTHERN END
OF THE CENTRAL CANADIAN LONG WAVE TROUGH SHIFTS EASTWARD OVER THE
TENNESSEE VALLEY. THIS SYSTEM WILL LIKELY LIFT EAST-NORTHEASTWARD
ACROSS EASTERN KENTUCKY/TENNESSEE...ACROSS THE SOUTHERN APPALACHIANS
AND INTO THE MID-ATLANTIC REGION THROUGH THE MIDDLE AND LATTER
PORTIONS OF NEXT WEEK...WITH MEDIUM RANGE GUIDANCE FROM THE GFS/ECMWF
INDICATING THAT A STRONG MID-LEVEL ANTICYCLONE WILL BUILD ACROSS THE
REGION DURING THIS PERIOD. THUS...ASIDE FROM A FEW AFTERNOON SHOWERS
AND STORMS IN THE HIGHER TERRAIN OF NORTHEAST ALABAMA AND SOUTHERN
MIDDLE TENNESSEE...EXPECT DRY AND VERY WARM CONDITIONS TO PREVAIL
WITH HIGHS REACHING THE LOWER 90S FOR THE MAJORITY OF THE FORECAST
AREA.

70/DD

&&

.AVIATION...
/ISSUED 1225 PM CDT FRI MAY 18 2012/
FOR 18Z TAFS...PREDOMINATELY VFR CONDITIONS ARE EXPECTED THIS TAF
PERIOD. ISOLATED SHOWERS OR TS ARE POSSIBLE THIS AFTERNOON...AND
JUST PAST THE END OF THE TAF PERIOD TOMORROW. HOWEVER WILL NOT
INCLUDE THESE IN THE TAFS ATTM DUE TO LOW CONFIDENCE. PATCHY FOG IS
AGAIN A POSSIBILITY LATE TONIGHT...AND HAVE NOTED THIS IN TAFS.

JLL

&&

.PRELIMINARY POINT TEMPS/POPS...
HUNTSVILLE    61  87  61  89  63 /  20  20  10  20  30
SHOALS        60  88  60  91  61 /  20  20  20  20  30
VINEMONT      61  83  61  86  63 /  20  20  10  20  30
FAYETTEVILLE  60  84  60  87  62 /  10  20  20  20  30
ALBERTVILLE   57  83  57  85  59 /  10  20  10  20  10
FORT PAYNE    55  82  55  85  57 /  10  20  10  20  10

&&

.HUN WATCHES/WARNINGS/ADVISORIES...

AL...NONE.

TN...NONE.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE
AT WEATHER.GOV/HUNTSVILLE.

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
510 PM CDT FRI MAY 18 2012

ALZ001>010-016-TNZ076-096-097-191100-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
510 PM CDT FRI MAY 18 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...TONIGHT...

ISOLATED THUNDERSTORMS ARE EXPECTED THROUGH THE REMAINDER OF THE
AFTERNOON HOURS AND INTO THE EARLY EVENING PERIOD...MAINLY ACROSS
NORTH CENTRAL AND NORTHWEST ALABAMA. GUSTY OUTFLOW WINDS...SMALL
HAIL AND LOCALLY HEAVY RAINFALL ARE POSSIBLE WITH THE STRONGER
STORMS. MINOR FLOODING ON ROADS AND IN LOW LYING AREAS IS POSSIBLE
AS WELL...GIVEN THE SLOW MOVEMENT OF THE THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

ISOLATED THUNDERSTORMS WILL AGAIN BE POSSIBLE SATURDAY AND SUNDAY
AFTERNOONS. STORMS MAY BECOME MORE SCATTERED IN NATURE ON MONDAY
THROUGH TUESDAY AS WEAK DISTURBANCES MOVE THROUGH THE TENNESSEE
VALLEY. GUSTY WINDS MAY ACCOMPANY THE STORMS...ALONG WITH OCCASIONAL
LIGHTNING AND BRIEF HEAVY RAINFALL.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS
NOT ANTICIPATED AT THIS TIME.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
431 PM CDT FRI MAY 18 2012

TNZ097-182215-
FRANKLIN-
431 PM CDT FRI MAY 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR FRANKLIN COUNTY UNTIL 515 PM
CDT...

AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
CLUSTERS OF STRONG THUNDERSTORMS OVER FRANKLIN COUNTY.  THE
STRONGEST STORM WAS NEAR SEWANEE...OR 9 MILES EAST OF
WINCHESTER...MOVING SOUTH AT 5 MPH.

PEA SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  WINCHESTER.
  COWAN.
  SHERWOOD...BELVIDERE.

IF ON OR NEAR TIMS FORD LAKE...GET OUT OF THE WATER AND MOVE INDOORS
OR INSIDE A VEHICLE. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DON'T BE CAUGHT
ON THE WATER IN A THUNDERSTORM!

&&

LAT...LON 3531 8594 3530 8592 3522 8586 3513 8585
      3500 8588 3500 8625 3534 8621 3535 8619
TIME...MOT...LOC 2130Z 000DEG 4KT 3520 8596

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
505 PM CDT FRI MAY 18 2012

ALZ005-006-182245-
LIMESTONE-MADISON-
505 PM CDT FRI MAY 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN LIMESTONE AND WESTERN
MADISON COUNTIES UNTIL 545 PM CDT...

AT 505 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A CLUSTER OF THUNDERSTORMS IN WESTERN MADISON COUNTY.  THE STRONGEST
STORM WAS DEVELOPING OVER THE UNIVERSITY OF ALABAMA IN HUNTSVILLE IN
WEST HUNTSVILLE...MOVING WEST AT 5 MPH.

PENNY SIZE HAIL...WINDS UP TO 40 MPH...AND HEAVY DOWNPOURS ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  HARVEST.
  MADISON...CAPSHAW.
  HUNTSVILLE INTERNATIONAL AIRPORT.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

&&

LAT...LON 3488 8658 3458 8655 3458 8660 3458 8662
      3457 8668 3459 8669 3459 8671 3457 8673
      3457 8685 3487 8691
TIME...MOT...LOC 2205Z 080DEG 5KT 3472 8667

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
515 PM CDT FRI MAY 18 2012

TNZ097-182300-
FRANKLIN-
515 PM CDT FRI MAY 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR FRANKLIN COUNTY UNTIL 600 PM
CDT...

AT 515 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR SHERWOOD...OR 10 MILES SOUTHEAST OF
WINCHESTER...MOVING WEST 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...
  COWAN...WINCHESTER.

RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE FROM THESE
THUNDERSTORMS. THIS MAY RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING
OF WATER ON AREA ROADWAYS.

&&

LAT...LON 3511 8586 3499 8586 3499 8617 3518 8616
      3522 8586
TIME...MOT...LOC 2215Z 089DEG 4KT 3513 8596

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
522 PM CDT FRI MAY 18 2012

ALZ006-182245-
MADISON-
522 PM CDT FRI MAY 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL AND EASTERN MADISON
COUNTY UNTIL 545 PM CDT...

AT 522 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
A STRONG THUNDERSTORM WAS RAPIDLY DEVELOPING NEAR RYLAND...OR 6
MILES EAST OF HUNTSVILLE...MOVING WEST AT 5 MPH.

NICKEL SIZE HAIL AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  ALABAMA A AND M UNIVERSITY...HUNTSVILLE.

SEEK SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3464 8663 3479 8665 3480 8644 3466 8640
TIME...MOT...LOC 2222Z 087DEG 4KT 3475 8648

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
529 PM CDT FRI MAY 18 2012

ALZ010-182315-
DE KALB-
529 PM CDT FRI MAY 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN DEKALB COUNTY UNTIL 615
PM CDT...

AT 529 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR MENLO GEORGIA...OR 15 MILES EAST OF FORT
PAYNE...MOVING WEST AT 10 MPH.

PEA SIZE HAIL...WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  VALLEY HEAD...MENTONE.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

&&

LAT...LON 3450 8554 3449 8557 3447 8556 3446 8558
      3443 8558 3440 8561 3441 8575 3465 8568
      3457 8552 3453 8551
TIME...MOT...LOC 2229Z 103DEG 7KT 3448 8547

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
540 PM CDT FRI MAY 18 2012

ALZ005-182330-
LIMESTONE-
540 PM CDT FRI MAY 18 2012

...SIGNIFICANT WEATHER ADVISORY FOR LIMESTONE COUNTY UNTIL 630 PM
CDT...

AT 540 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES SOUTHWEST OF BETHEL...OR 7 MILES
NORTHEAST OF ATHENS...MOVING WEST 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...
  ATHENS...ELKMONT.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

&&

LAT...LON 3495 8679 3476 8679 3475 8699 3496 8701
TIME...MOT...LOC 2240Z 090DEG 5KT 3485 8687

KULA