000
FXUS64 KBMX 140438
AFDBMX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1137 PM CDT MON MAY 13 2013

.UPDATE...
FOR 00Z AVIATION.

&&

.DISCUSSION...

A VERY TRANQUIL NIGHT IS IN STORE FOR CENTRAL ALABAMA WITH CLEAR
SKIES EXPECTED TO PREVAIL AREA WIDE. A FAIRLY DRY AIRMASS REMAINS
IN PLACE WITH PWATS NEAR 0.50 INCHES ON THE 00Z KBMX RAOB AND
NORTHWESTERLY FLOW ACROSS THE ENTIRE SOUNDING PROFILE. SURROUNDING
RAOBS ARE ALSO PRESENTING THE SURFACE RIDGE THAT WILL BE MOVING
EASTWARD ACROSS CENTRAL ALABAMA DURING THE OVERNIGHT HOURS. THE
CLEAR SKIES AND CALM WINDS WILL ALLOW FOR VERY GOOD RADIATIONAL
COOLING. MOST LOCATIONS ARE EXPECTED TO DIP INTO THE UPPER 40S TO
LOWER 50S WITH THE COOLER VALLEY LOCATIONS POSSIBLY DROPPING INTO
THE LOW TO MID 40S. THE VERY COOL CONDITIONS FOR THIS TIME OF THE
YEAR WILL ABRUPTLY COME TO AN END TOMORROW AS GOOD SOUTHERLY FLOW
AT THE SURFACE WILL KICK IN ON THE WEST SIDE OF THE SURFACE HIGH.
IN FACT...WE COULD BE LOOKING AT DIURNAL CURVES THAT HAVE A 35 TO 40
DEGREE DIFFERENCE FOR SOME LOCATIONS BETWEEN LOWS TONIGHT AND HIGHS
TOMORROW AFTERNOON...WHICH IS VERY LARGE. LOW TO MID 80S STILL
APPEAR ON TRACK FOR HIGHS TOMORROW...AND EVEN WARMER CONDITIONS WILL
BE EXPECTED THROUGH THE REST OF THE WEEK WITH A VERY SUMMER-LIKE
PATTERN SHAPING UP. CURRENT FORECAST TRENDS ARE GENERALLY ON TRACK
FOR TONIGHT...AND ONLY MINOR ADJUSTMENTS WERE MADE TO OVERNIGHT
LOWS. UPDATES ARE ALREADY OUT.

56/GDG

&&

.AVIATION...
06Z TAF DISCUSSION.

VFR CONDITIONS EXPECTED OVER THE NEXT 24 HOURS AT ALL SITES. THE
FORECAST REMAINS A WIND FORECAST AS HIGH PRESSURE BUILDS IN OVER
THE AREA. WITH THE DRY AIR IN PLACE FOG IS NOT EXPECTED.

16

&&

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

&&

$$