121 FXUS64 KMAF 212100 AFDMAF AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX 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. && .PRELIMINARY POINT TEMPS/POPS... ANDREWS TX 59 96 70 96 / 0 0 0 20 BIG SPRING TX 59 95 70 95 / 0 0 0 10 CARLSBAD NM 60 97 65 98 / 0 0 0 20 DRYDEN TX 69 95 74 95 / 0 10 0 20 FORT STOCKTON TX 65 96 71 96 / 0 0 0 20 GUADALUPE PASS TX 63 90 67 89 / 0 0 0 20 HOBBS NM 57 92 65 96 / 0 0 0 20 MARFA TX 46 88 54 89 / 0 0 0 30 MIDLAND INTL AIRPORT TX 61 95 71 96 / 0 0 0 20 ODESSA TX 62 97 72 96 / 0 0 0 20 WINK TX 61 99 71 100 / 0 0 0 20 && .MAF WATCHES/WARNINGS/ADVISORIES... NM...NONE. TX...NONE. && $$ 27/70