Flash Flood Warning 16, NWS Huntsville, AL

000 
WGUS74 KHUN 260627
FFSHUN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
126 AM CDT SUN AUG 26 2007

ALC083-260636-
LIMESTONE AL-
126 AM CDT SUN AUG 26 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHWESTERN
LIMESTONE COUNTY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE FLOOD 
THREAT WAS DIMINISHING. THERE IS STILL SOME SPOTTY RAINFALL IN THE 
NORTHWEST PORTION OF THE COUNTY...BUT IT WILL NOT BE ENOUGH TO CAUSE 
ADDITIONAL FLOOD THREATS. THUS...THE FLASH FLOOD WARNING HAS BEEN 
CANCELED.

MINOR FLOODING OF LOW LYING AND FLOOD PRONE AREAS ARE POSSIBLE...DUE
TO RECENT RAINFALL RUNOFF OF THIS STORM. STANDING WATER ON AREA
HIGHWAYS MAY CAUSE HYDROPLANING...WITH A LOSS OF VEHICLE CONTROL
POSSIBLE.

LAT...LON 3500 8694 3480 8695 3482 8721 3500 8721
      3501 8720
TIME...MOT...LOC 0626Z 285DEG 5KT 3492 8708

$$

JE

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
815 PM CDT SAT AUG 25 2007

.DISCUSSION...
ISLTD-SCTD CONVECTION CONTINUES TO FIRE ACROSS AND NW OF THE HUN
CWFA THIS EVENING...THOUGH OVERALL INTENSITY HAS WEAKENED SOMEWHAT
OVER THE PAST 30-45 MINS. SO FAR THE STORMS HAVE NOT MERGED AND
INTENSIFIED AS THEY DID LAST NIGHT...BUT THERE IS TIME FOR THAT TO
CHANGE. MAIN FEATURE OF NOTE IN THE MESOSCALE IS A SFC BOUNDARY
ALONG A KGWO-KBNA LINE...WHICH IS FOCUSING SOME INTENSE ACTIVITY
AHEAD OF IT IN NRN MS. THIS BOUNDARY ALSO COINCIDES WITH A WEAK
UPPER TROUGH AXIS SWINGING THROUGH THE REGION.

CURRENT FCST APPEARS TO BE HOLDING UP WELL DESPITE THE STRONG-SVR
ACTIVITY...AS COVERAGE HAS REMAINED RATHER ISOLATED. MAIN ISSUE TO
WATCH FOR THIS EVENING WILL BE WHAT WE SAW LAST NIGHT...WHERE
MULTIPLE BOUNDARY INTERACTIONS...LOW LVL JET...CELL MERGERS...AND
GENERALLY GREATER INSTABILITY INCREASED THE COVERAGE AND INTENSITY
OF SEVERAL CLUSTERS OF THUNDERSTORMS. THE 12KM NAM HAD SUCCESS IN
PREDICTING THE OVERNIGHT CONVECTION YESTERDAY...BUT TODAYS 18Z RUN
SHOWS NO LLVL JET OR SIMILAR ACTIVITY TONIGHT. CONSIDERING RADAR
TRENDS...TEND TO BELIEVE THAT WE WILL STABILIZE AND SEE MUCH QUIETER
CONDITIONS LATER TONIGHT...AND THUS WILL MAINTAIN JUST THE 20 POPS
THRU THE OVERNIGHT HOURS. ONLY UPDATES WILL BE TO ADJUST HOURLY
TRENDS IN TEMPS/DEWPOINTS/WINDS...AND THESE ADJUSTMENTS WILL BE
MINOR. UPDATED PRODUCTS TO BE ISSUED SHORTLY.
&&

.PREV DISCUSSION... /ISSUED 148 PM CDT SAT AUG 25 2007/
STILL EXPECT BEST CHANCE OF ANY SHRA/TSRA TO BE ALONG AND AHEAD OF
LOW LEVEL FRONTAL CONVERGENCE AXIS AS WEAK FURFACE FRONT MOVES
THROUGH THE FA FROM NORTHWEST TO SOUTHEAST THROUGH SUNDAY. WILL
CONTINUE WITH CURRENT FORECAST WORDING WITH AT 30 PERCENT POPS FOR
SUNDAY...AND 20 POPS IN NORTHWEST AND WESTERN COUNTIES. UPPER 500 MB
RIDGE SHOULD ALSO BEGIN TO SLOWLY BUILD BACK INTO THE TENNESSEE
VALLEY REGION BY MONDAY AS FRONT WASHES OUT JUST TO THE SOUTH OF THE
FA.

LONG TERM (TUESDAY THROUGH SATURDAY)...
UPPER 500 MB RIDGE WILL INITIALLY SLIGHTLY STRENGTHEN ACROSS THE
FA BETWEEN TUESDAY AND WEDNESDAY...WITH DECENT CAPPING AND WILL
CONTINUE WITH NOT MORE THAN 10 PERCENT PRECIP CHANCES THROUGH MID
WEEK.

12Z GFS MODEL STILL CONSISTENTLY IS PUSHING COLD FRONT SOUTHEAST
TOWARD THE FA BY THURSDAY OUT OF THE OHIO VALLEY REGION. GFS MODEL
AGAIN IS DEVELOPING A WEEK 500 MB LOW IN SOUTHERN MIDDLE TENNESSEE
BY 12Z THURSDAY...WITH A DECENT AMOUNT OF LOW LEVEL MOISTURE
CONVERGENCE AND PRECIPITATION NOTED ALONG THE FRONTAL BOUNDARY AS IT
APPPROACHES THE FA. FOR NOW...WILL JUST CONTINUE WITH SLIGHT CHANCE
POPS...BUT MAY NEED TO LATER INCREASE INTO CHANCE CATEGORY AS MORE
CONSISTENCY IN THE MODELS ARE NOTED. GFS MODEL CONTINUES TO SLOWLY
SHIFT 500 MILLIBAR AND SURFACE LOW SOUTH AND SOUTHEASTWARD WITH TIME
INTO SATURDAY...AND WILL CONTINUE WITH AT LEAST SLIGHT CHANCE POPS
DUE TO PROXIMITY OF FRONTAL BOUNDARY/UPPER THROUGH SURFACE LOW.
&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
TN...NONE.
&&

UPDATE...BCC
PREV DISCUSSION...TROUTMAN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
925 PM CDT SAT AUG 25 2007

ALZ001>010-016-TNZ076-096-097-261030-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DE KALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
925 PM CDT SAT AUG 25 2007

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

.DAY ONE...TONIGHT...

ADDITIONAL ISOLATED SHOWERS OR THUNDERSTORMS MAY DEVELOP OVERNIGHT
AS A WEAK TROUGH OF LOW PRESSURE MOVES ACROSS THE AREA. THESE STORMS
ARE LIKELY TO REMAIN BELOW SEVERE LIMITS DUE TO THE LACK OF DAYTIME
HEATING...BUT WIND GUSTS TO 45 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND LOCALLY HEAVY RAINFALL WILL REMAIN A POSSIBILITY.
THE RAINFALL MAY PRODUCE LOCALIZED FLOODING IF IT OCCURS IN AREAS
THAT ALREADY RECEIVED HEAVY RAINFALL OVER THE PAST SEVERAL DAYS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

SCATTERED SHOWERS AND THUNDERSTORMS ARE AGAIN EXPECTED ON SUNDAY.
HEAVY RAIN AND GUSTY WINDS TO 45 MPH WILL BE THE MAIN THREATS.

THE HEAT WILL BRIEFLY RETURN AROUND THE MIDDLE OF THE WEEK...AND
HEAT INDEX VALUES AROUND 105 DEGREES ARE POSSIBLE ON TUESDAY
AFTERNOON.

A SMALL CHANCE FOR THUNDERSTORMS RETURNS TO THE FORECAST THURSDAY
AND FRIDAY AS HIGH PRESSURE AGAIN MOVES AWAY FROM THE AREA AND
MOISTURE INCREASES OVER THE AREA.

.SPOTTER CALL TO ACTION STATEMENT...

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

BCC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
718 PM CDT SAT AUG 25 2007

ALZ008-260100-
MARSHALL-
718 PM CDT SAT AUG 25 2007

...SIGNIFICANT WEATHER ALERT FOR SOUTHERN MARSHALL COUNTY UNTIL 800
PM CDT...

AT 716 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES WEST OF CROSSVILLE...OR 7 MILES NORTHEAST
OF BOAZ. THIS STORM WAS NEARLY STATIONARY.

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...
  BOAZ.
  MCVILLE.

RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE FROM THE
THUNDERSTORM. THIS MAY RESULT IN BRIEF RUNOFF PROBLEMS AND PONDING
OF WATER ON AREA ROADWAYS.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
723 PM CDT SAT AUG 25 2007

ALZ007-260115-
MORGAN-
723 PM CDT SAT AUG 25 2007

...SIGNIFICANT WEATHER ALERT FOR MORGAN COUNTY UNTIL 815 PM CDT...

AT 721 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM DEVELOPING OVER DECATUR...MOVING SOUTH 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...
  TRINITY.
  DECATUR.
  FLINT CITY.

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

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

KULA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
917 PM CDT SAT AUG 25 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0709 PM     TSTM WND DMG     2 N RIPLEY              34.79N 87.13W
08/25/2007                   LIMESTONE          AL   NEWSPAPER

            ROOF DAMAGE TO BUSINESSES ON SHAW ROAD OFF U.S. 72 WEST
            OF ATHENS. TIME ESTIMATED.

&&

BCC

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
955 PM CDT SAT AUG 25 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0628 PM     TSTM WND DMG     1 W MENTONE             34.58N 85.61W
08/25/2007                   DEKALB             AL   FIRE DEPT/RESCUE

            TREES WERE BLOWN DOWN ALONG DESOTO PARKWAY.

&&

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1044 PM CDT SAT AUG 25 2007

ALZ005-006-TNZ096-260415-
LIMESTONE-LINCOLN-MADISON-
1044 PM CDT SAT AUG 25 2007

...SIGNIFICANT WEATHER ALERT FOR NORTHERN LIMESTONE...SOUTHWESTERN
LINCOLN AND NORTHWESTERN MADISON COUNTIES UNTIL 1115 PM CDT...

AT 1042 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM CENTERED NEAR ARDMORE...OR 14 MILES NORTH OF
ATHENS...MOVING SOUTHEAST AT 20 MPH.

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...
  HOLLAND GIN.
  CASH POINT.
  BETHEL.
  ELKWOOD.
  TONEY.
  GLADSTONE.

THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

KULA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1130 PM CDT SAT AUG 25 2007

ALZ005-260515-
LIMESTONE-
1130 PM CDT SAT AUG 25 2007

...SIGNIFICANT WEATHER ALERT FOR NORTHWESTERN LIMESTONE COUNTY UNTIL
1215 AM CDT...

AT 1130 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
TRACK A CLUSTER OF STRONG THUNDERSTORMS ACROSS NORTHERN LIMESTONE
COUNTY. THESE STORMS REMAIN NEARLY STATIONARY...AND CONTINUE TO
PRODUCE VERY HEAVY RAINFALL. DOPPLER RADAR ESTIMATES THAT UP TO 3
INCHES OF RAIN HAVE FALLEN IN PORTIONS OF NORTHWESTERN LIMESTONE
COUNTY.

* LOCATIONS AFFECTED INCLUDE...
  MT ROZELL.
  LEGGTOWN.
  CARTWRIGHT.
  ELKMONT.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IF THE
THUNDERSTORMS REMAIN STATIONARY OVER THE NEXT HOUR. PERSONS ACROSS
NORTHERN LIMESTONE COUNTY SHOULD BE ALERT TO LOCALIZED FLOODING
PROBLEMS...AND BE PREPARED TO MOVE TO HIGHER GROUND SHOULD A FLASH
FLOOD WARNING BE ISSUED.

BCC