483
FXUS64 KMAF 220507
AFDMAF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
1207 AM CDT WED MAY 22 2013
.DISCUSSION...
SEE AVIATION DISCUSSION BELOW.
&&
.AVIATION...
NO MAJOR AVIATION WORRIES NEXT 24 HOURS...AS VFR CONDITIONS
PREVAIL. SFC WINDS WILL CONTINUE VEERING AS RETURN FLOW
REESTABLISHES. 40+KT LLJ WILL KEEP WINDS UP WEDNESDAY NIGHT.
&&
PREV DISCUSSION... /ISSUED 400 PM CDT TUE MAY 21 2013/
DISCUSSION...
COOLER TEMPERATURES THIS AFTERNOON WILL GIVE WAY TO WARMER
CONDITIONS WEDNESDAY AS UPPER HEIGHTS BUILD OVERHEAD. RETURN FLOW
ON THE BACKSIDE OF THE SURFACE HIGH WILL BRING LOW LEVEL MOISTURE
BACK ACROSS THE AREA WEDNESDAY NIGHT...WITH SUBSTANTIAL MOISTURE
RETURN ALL THE WAY BACK TO THE MOUNTAINS POSSIBLE. THIS MOISTURE
WILL MIX OUT WITH STRONG HEATING THURSDAY...BUT THERE SHOULD BE
ENOUGH INSTABILITY AND LIFT WITH INCREASING FLOW ALOFT TO SUPPORT
ISOLATED DIURNAL THUNDERSTORMS. A BETTER CHANCE WILL BE ON FRIDAY
AS A WEAK UPPER SHORTWAVE TROUGH INTERACTS WITH A MOIST AND
UNSTABLE AIRMASS. THE DRYLINE WILL BE A PLAYER...BUT TO WHAT
EXTENT IS UNCERTAIN AT THIS TIME. ENSEMBLE MODEL DATA SUGGESTS
THAT THE STORM MODE WILL BE MULTICELLULAR GIVEN RELATIVELY WEAK
EFFECTIVE BULK SHEAR AND EXPECTED MODEST MID-TROPOSPHERIC FLOW.
PRECIP CHANCES TAPER OFF A BIT SATURDAY AND SUNDAY...BUT COULD
INCREASE DEPENDING ON SUBTLE UPPER FEATURES ROTATING AROUND THE
BASE OF THE NORTHWEST PACIFIC UPPER LOW. STILL LOOKS LIKE WE COULD
SEE AN UPTICK IN RAIN CHANCES THE MIDDLE OF NEXT WEEK. HIGH
TEMPERATURES FRIDAY WILL BE CLOSE TO NORMAL GIVEN CLOUDS...MOISTURE...
AND EXPECTED OUTFLOW FROM THURSDAY`S STORMS...OTHERWISE LOOK FOR
TEMPS TO BE A BIT ABOVE LATE MAY NORMS.
&&
.MAF WATCHES/WARNINGS/ADVISORIES...
NM...NONE.
TX...NONE.
&&
$$
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