Area Forecast Discussion
Issued by NWS Huntsville, AL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS64 KHUN 011145 AAC
AFDHUN

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE HUNTSVILLE AL
645 AM CDT SAT NOV 1 2014

.UPDATE...
FOR 12Z TAFS

&&

.DISCUSSION...
/ISSUED 318 AM CDT SAT NOV 1 2014/

NOTE...RESENT AFD FOR A CHANGE TO THE START TIME OF FREEZE WARNING
TONIGHT THRU SUNDAY MORNING (FROM MIDNIGHT TO 9 AM SUNDAY MRNG).

WENT WITH A BLEND OF GFS AND NAM FOR THIS FCST PACKAGE.

THE FREEZE WARNING FOR THIS MRNG LOOKS MARGINAL ATTM DUE TO WRAP
ARND CLOUDS OVER MOST OF NE AL AND OUR TN ZONES. AT 2 AM TEMPS ACROSS
THE CWA WERE IN THE MID/UPPER 30S WITH LOW/MID 20S DEWPOINTS. TIME
SECTIONS/MODELS SOUNDINGS/STLT TRENDS DO SHOW THAT THESE CLOUDS COULD
HANG ARND MOST OF NE AL/SRN MID TN THRU MID MRNG OR PERHAPS A LITTLE
LONGER. WILL GO AHEAD AND KEEP THE FREEZE WARNING GOING FOR THIS MRNG
BECAUSE WILL PROBABLY HAVE SEVERAL LOCATIONS WEST OF I65 THAT COULD
DROP TO 31 OR 32. HOWEVER SUNDAY MRNG LOOKS MUCH BETTER FOR A
WIDESPREAD FREEZE DUE TO LIGHT WINDS/CLR SKIES AND MRNG LOWS PROGGED
TO BE IN THE UPPER 20S. THE ONLY OTHER CONCERN THIS MRNG IS THE CHC
OF SOME FLURRIES OVER OUR EXTREME NERN ZONES. FOR NOW DID NOT HAVE
ANY PCPN/FLURRIES IN ZONES AFTER 12Z TODAY...BASED ON RADAR TRENDS
AND THE UPPER LOW MOVING EAST OF THE AREA...TAKING THE PCPN WITH IT.
OTHERWISE EXPECT CLOUDS TO CONTINUE TO DECREASE TODAY WITH MOSTLY CLR
SKIES TONIGHT.

SUNDAY THRU TUESDAY...A LARGE RIDGE OF HIGH PRESSURE WILL BUILD
ACROSS THE AREA DURING THIS TIMEFRAME WITH DRY CONDITIONS AND A
WARMING TREND. HIGHS ON MONDAY/TUESDAY WILL BE IN THE MID 60S TO
ARND 70. MRNG LOWS WILL STILL BE FAIRLY COOL...WITH LOWS ON MONDAY
IN THE LOWER 30S AND LOW 40S ON TUESDAY.

WEDNESDAY/THURSDAY...THE RIDGE OF HIGH PRESSURE MOVES EAST BY
WEDNESDAY ALLOWING A CDFNT TO APPROACH THE TN VALLEY. ATTM THE BEST
CHC OF PCPN WILL BE WEDNESDAY MRNG/AFTN. THE PCPN WILL BEGIN TO TAPER
OFF BY WEDNESDAY NIGHT. WILL KEEP SLIGHT POPS FOR THURSDAY MRNG BASED
ON GFS. THURSDAY AFTN/NIGHT LOOKS DRY ATTM. HIGHS DURING THIS PERIOD
WILL BE ARND 70 WITH MRNG LOWS NEAR 50. WILL KEEP PCPN AS SHRA SINCE
GFS MODEL SOUNDINGS WERE SHOWING STABLE CONDITIONS.

FRIDAY LOOKS DRY AND A LITTLE COOLER WITH HIGHS IN THE LOW 60S. NO
FREEZING TEMPS EXPECTED ON FRIDAY.

07

&&

.AVIATION...
FOR 12Z TAFS...CLOUDS MAY AFFECT THE TAF SITES THIS
MORNING...ESPECIALLY KHSV THROUGH 15Z WITH VFR AND OCCASIONAL MVFR.
ALSO...LOW/MID LEVEL WINDS WILL BE STRONG THIS MORNING THUS PUT IN
WINDSHEAR AT BOTH TAF SITES TILL 15Z. AFTER THIS TIME THE UPPER LOW
WILL CONTINUE TO MOVE EAST ALLOWING CLOUDS TO DISSIPATE AND WINDS TO
DIMINISH. THUS VFR CONDITIONS WILL PREVAIL THROUGH THE TAF PERIOD.

JMS

&&

.HUN WATCHES/WARNINGS/ADVISORIES...
AL...FREEZE WARNING UNTIL 9 AM CDT THIS MORNING FOR ALZ001>010-016.

     FREEZE WARNING FROM MIDNIGHT CDT TONIGHT TO 9 AM CST SUNDAY FOR
     ALZ001>010-016.

TN...FREEZE WARNING UNTIL 9 AM CDT THIS MORNING FOR TNZ076-096-097.

     FREEZE WARNING FROM MIDNIGHT CDT TONIGHT TO 9 AM CST SUNDAY FOR
     TNZ076-096-097.

&&

$$

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



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.