Red Flag Warning 7, NWS Huntsville, AL

097 
WWUS84 KHUN 012157
RFWHUN

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE HUNTSVILLE AL
457 PM CDT TUE NOV 1 2011

ALZ001>010-016-012300-
/O.EXP.KHUN.FW.W.0007.000000T0000Z-111101T2200Z/
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-
457 PM CDT TUE NOV 1 2011

...RED FLAG WARNING WILL EXPIRE AT 5 PM CDT THIS AFTERNOON FOR 
NORTHERN ALABAMA...

THE RED FLAG WARNING WILL EXPIRE AT 5 PM CDT THIS AFTERNOON.

COOLER TEMPERATURES WILL RESULT IN RELATIVE HUMIDITIES RISING ABOVE
25 PERCENT FOR THE REMAINDER OF THIS AFTERNOON AND EVENING. THEREFORE
THE RED FLAG WARNING THAT IS IN EFFECT FOR NORTHERN ALABAMA WILL BE
ALLOWED TO EXPIRE AT 5 PM CDT.

$$

RSB

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1129 AM CDT TUE NOV 1 2011

.UPDATE...FOR 18Z TAFS.

&&

.AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGHOUT THE TAF PERIOD.

&&

.PREV DISCUSSION... /ISSUED 1027 AM CDT TUE NOV 1 2011/

HIGH PRESSURE CONTINUES TO BE IN PLACE OVER THE TENNESSEE VALLEY
THIS MORNING. LIGHT WINDS AND LOWS IN THE UPPER 20S TO MID 30S
ALLOWED A GOOD BIT OF FROST TO DEVELOP LAST NIGHT. EVEN A BIT OF
BRIEF GROUND FOG WAS REPORTED THIS MORNING AT THE MUSCLE SHOALS
AIRPORT.

A WEAK SHORTWAVE OVER EASTERN ARKANSAS AND WESTERN TN IS BRINGING
A BATCH OF HIGH CLOUDS CONDITIONS IN MS AND CENTRAL TN...AS SOME
CLOUDS ABOVE 12,000 FT ARE DEVELOPING AHEAD OF IT. THIS DISTURBANCE
IS MOVING QUICKLY TO THE EAST AND ANY CLOUD COVER ASSOCIATED WITH IT
SHOULD BE EAST OF I-65 BY 1 PM. A FEW CLOUDS WILL PUSH INTO THE
AREA...BUT DO NOT THINK PREDOMINANT PARTLY CLOUDY CONDITIONS WILL
OCCUR. A FEW CLOUDS WILL LINGER EAST OF I-65 THROUGH ABOUT 3
PM...WHEN THE DISTURBANCE WILL PUSH INTO GEORGIA.

CLOUD COVER WILL HAVE LITTLE AFFECT ON DAYTIME HEATING...DUE TO ITS
EXPECTED THIN NATURE AND COVERAGE. DAYTIME HIGHS YESTERDAY WERE A BIT
BELOW GUIDANCE. WITH APPROACHING SHORTWAVE AND LESS CLOUD COVER
TODAY...BELIEVE THEY WILL AGAIN BE ONE TO THREE DEGREES ABOVE NORMAL.
THEREFORE...HAVE BUMPED UP HIGH TEMPERATURES SLIGHTLY. LOCATIONS WEST
OF I-65 SHOULD SEE HIGHS CLIMB INTO THE LOWER 70S...WHILE FURTHER
EAST UPPER 60S WITH A FEW LOWER 70S WILL BE THE RULE.

FIRE WEATHER...
LIGHT WINDS WILL CONTINUE TODAY...BUT BASED ON AREA 12Z SOUNDINGS
A LAYER OF DRIER AIR CAN BE SEEN BETWEEN 850 MB AND 750 MB. SOME LOW
LEVEL MOISTENING WILL OCCUR THIS MORNING AHEAD OF A SHORTWAVE PUSHING
THROUGH THE AREA...BUT BY THE AFTERNOON HOURS THIS WILL HAVE PUSHED
EAST OF THE AREA. HIGHS TEMPERATURES DURING THIS TIME WILL BE IN THE
LOWER 70S WEST OF I-65...AND DRY AIR ADVECTION BEHIND THE DISTURBANCE
WILL BEGIN KICKING IN. HIGH TEMPERATURES IN THE LOWER 70S WILL ALLOW
DRY AIR ALOFT AROUND 800 MB TO BRING DOWN AFTERNOON DEWPOINTS MORE
THAN PREVIOUS FORECAST PACKAGE INDICATED. THEREFORE LOWERED AFTERNOON
DEWPOINTS INTO THE UPPER 20S TO AROUND 30 DEGREES. THIS BRINGS RH
VALUES TO BETWEEN 20 AND 25 PERCENT IN NW ALABAMA BETWEEN 3 AND 5 PM.
DURATION OF THESE MINIMUM RH VALUES SHOULD KEEP ANY RED FLAG WARNINGS
AT BAY. HOWEVER...CAUTION SHOULD BE EXERCISED WITH ANY OUTDOOR
BURNING THIS AFTERNOON.

&&

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

20

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
408 AM CDT TUE NOV 1 2011

ALZ001>010-016-TNZ076-096-097-011800-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
408 AM CDT TUE NOV 1 2011

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

.DAY ONE...TODAY AND TONIGHT...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

A STORM SYSTEM WILL BRING A CHANCE OF SHOWERS AND A FEW
THUNDERSTORMS TO THE TENNESSEE VALLEY ON THURSDAY.

.SPOTTER CALL TO ACTION STATEMENT...

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