Area Forecast Discussion
Issued by NWS Birmingham, AL

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000
FXUS64 KBMX 242318
AFDBMX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
618 PM CDT FRI MAY 24 2013

.UPDATE...
FOR 00Z AVIATION.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY.

A DRIER AND COOLER AIR MASS HAS INVADED ALABAMA AS AN UPPER TROF
DIGS SOUTHWARD ALONG THE EASTERN UNITED STATES. AS WITH MOST
INTRUSIONS OF COOL AIR THIS LATE IN THE SPRING...THE AIR MASS
WILL NOT STAY LONG AS THE UPPER TROF QUICKLY MOVES OFF THE EAST
COAST. THE DRIER AIR MASS WILL ALLOW NIGHT-TIME TEMPERATURES TO FALL
TO WELL BELOW AVERAGE VALUES...WITH SOME LOCATIONS ACROSS CENTRAL
ALABAMA POSSIBLY SETTING RECORD LOW TEMPERATURES TONIGHT. AN UPPER
RIDGE WILL BUILD EASTWARD FROM THE SOUTHERN PLAINS STATES OVER
THE WEEKEND KEEPING THE CONVECTION TO THE WEST AND NORTH OF
ALABAMA WITH AFTERNOON TEMPERATURES CLIMBING TO ABOVE AVERAGE
READINGS BY SUNDAY AND MONDAY.

58/ROSE

.LONG TERM...TUESDAY THROUGH FRIDAY.

AN UPPER TROF WILL DIG SOUTHWARD OVER THE WESTERN UNITED STATES
NEXT WEEK WITH AN UPPER RIDGE STRENGTHENING OVER THE SOUTHEAST
STATES. WARM MID LEVEL TEMPERATURES WILL PUT A LID ON ANY DIURNAL
CONVECTION...DESPITE TEMPERATURES FORECAST TO REACH NEAR 90
DEGREES DURING THIS PERIOD. HUMIDITY LEVELS WILL ALSO BE ON THE
INCREASE...RESULTING IN MID SUMMER LIKE CONDITIONS.

58/ROSE


&&

.AVIATION...
00Z TAF DISCUSSION.

VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24 HRS WITH A DRY AIRMASS
IN PLACE. WINDS WILL SUBSIDE OVER THE NEXT HOUR OR SO AND REMAIN
BELOW 7 KTS FOR THE REMAINDER OF THE TAF CYCLE.

05/MA

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$
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