Issued by NWS Amarillo, TX
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000 FXUS64 KAMA 101129 AAA AFDAMA AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE AMARILLO TX 529 AM CST WED FEB 10 2010 .AVIATION... IFR TO MVFR CIGS LINGERING OVER TAF SITES...MAY BE SOME VIS RESTRICTIONS DOWN TO 4 OR 5 MILES DUE TO BR THROUGH THE MORNING HOURS. SLIGHT IMPROVEMENT EXPECTED BY 16Z OR 17Z WHEN TAF SITES SHOULD TREND CLOSER TO MVFR...BUT CAN NOT COMPLETELY RULE OUT IFR CIGS AT ANY TIME IN THE TAF PERIOD. NEAR SURFACE AIR SHOULD SATURATE LATE TONIGHT INTO THURS MORNING CREATING IFR TO LIFR CONDITIONS AT KDHT AND KGUY...WITH KAMA SITTING IN A SLIGHTLY BETTER LOCATION AND MAY ONLY SEE BR IN THE MVFR RANGE. WINDS SHOULD INCREASE TO AROUND 15KT THIS AFTERNOON...THEN WEAKEN OVERNIGHT. JJB && .PREV DISCUSSION... /ISSUED 330 AM CST WED FEB 10 2010/ DISCUSSION... EXTENSIVE CLOUD COVER AND REMAINING SNOW COVER WILL LEAD TO ANOTHER COLD DAY...WITH MAX TEMPS EXPECTED TO REMAIN IN THE 30S...ABOUT 20 DEG F BELOW CLIMO. LOW LEVELS REMAIN MOIST TNGT AS SLY LOW-LEVEL FLOW CONTINUES. SRN CALIF CLOSED LOW EXPECTED TO TRANSITION TO OPEN WAVE NEAR ELP THU MRNG...WITH MOST OF ITS DYNAMICS PASSING WELL S OF PNHDLS. HAVE REDUCED AREA OF POPS ON THU...RESTRICTING EXTENT TO INCLUDE ONLY SRN PARTS OF TX PNHDL. BUFKIT SOUNDINGS SUGGEST THAT -FZRA WILL BE POSSIBLE DURING THU MRNG...SO HAVE CHANGED PCPN TYPE FROM SNOW DURING MRNG. BY THU AFTN...LIQUID PCPN EXPECTED. DUE TO EXPECTED WEAK H8 FLOW ON THU...DO NOT EXPECT MUCH PCPN...AND DO NOT EXPECT MUCH ICE ACCUMULATION. SYSTEM DEPARTS THU EVE WITH NO POPS IN REMAINDER OF FCST. HAVE UNDERCUT MOS MAXIMA BY 3 TO 6 DEG F TDA THRU FRI...AND HAVE STAYED CLOSE TO MOS TEMPS IN LATER PERIODS. 03 COCKRELL FIRE WEATHER... NO FIRE WEATHER CONCERNS NEXT SEVEN DAYS AS RELATIVE HUMIDITY VALUES REMAIN WELL ABOVE CRITICAL THESHOLDS. EXCESSIVE WINDS ARE NOT EXPECTED. 03 && .AMA WATCHES/WARNINGS/ADVISORIES... TX...NONE. OK...NONE. && $$ 14/03
