Issued by NWS Pueblo, CO
000 FXUS65 KPUB 242232 AFDPUB AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PUEBLO CO 332 PM MST TUE NOV 24 2009 .SHORT TERM... (TONIGHT AND WEDNESDAY) ...WEAK FRONT TO MOVE THROUGH AROUND SUNRISE... CURRENTLY... EXCEPT FOR SOME PASSING HIGH CLOUDS...SKIES MOSTLY SUNNY ACROSS THE REGION AT THIS TIME (2 PM). TEMPS ARE SEASONABLE FOR THIS TIME OF THE YEAR WITH TEMPS IN THE 45-47F RANGE ACROSS THE PLAINS. A WEAK ANTICYCLONIC GYRE WAS NOTED OVER THE PLAINS...WITH NW FLOW OVER THE FAR E PLAINS AND WEAK SE FLOW OVER THE I-25 CORRIDOR REGION. TONIGHT AND TOMORROW... NOT REALLY TOO MUCH TO WRITE ABOUT THIS FCST PACKAGE. MAIN ISSUE WILL BE THE MOVEMENT OF A RATHER POTENT SHORTWAVE MOVING SE IN THE NW FLOW ALOFT. HOWEVER...THIS SHORT WAVE IS PRETTY FAR TO THE NORTHEAST OF US. ONLY AFFECT THAT THIS WILL HAVE WILL BE TO BRING ANOTHER WEAK SURGE OF COOLER AIR INTO THE PLAINS TOMORROW. THE ACTUAL FRONT SHOULD MOVE ACROSS THE REGION AROUND SUNRISE AND REACH DOWN TO THE CO/NM BORDER BY AFTERNOON. WE MAY SEE SOME MID LVL CLOUDS ACROSS THE FAR E PLAINS TOMORROW MORNING...BUT IT SHOULD CLEAR OUT LATER IN THE DAY. SFC FLOW SHOULD BECOME UPSLOPE ALONG THE I-25 CORRIDOR BY EARLY AFTERNOON...WITH THE WINDS REMAINING NW`ERLY ACROSS THE FAR E PLAINS. /HODANISH .LONG TERM... (WEDNESDAY NIGHT THROUGH TUESDAY) LONGER TERM ISSUES CONTINUE TO BE TEMPERATURES...GUSTY WINDS AT TIMES AND POTENTIAL UNSETTLED CONDITIONS FROM THE WEEKEND INTO EARLY NEXT WEEK. LATEST LONGER TERM COMPUTER MODELS CONTINUE TO INDICATE THAT DRY NORTHWEST UPPER FLOW WILL REMAIN OVER THE CWFA FROM WEDNESDAY NIGHT INTO THANKSGIVING BEFORE BRIEFLY GIVING WAY TO UPPER RIDGING FROM LATER THURSDAY INTO FRIDAY. EXPECT DRY CONDITIONS TO COVER CWFA FROM WEDNESDAY NIGHT INTO FRIDAY NIGHT. AS MENTIONED IN PREVIOUS FEW DISCUSSIONS...THIS METEOROLOGICAL PATTERN WILL ALLOW FOR UNSEASONABLY WARM LATE NOVEMBER TEMPERATURES...ESPECIALLY DURING THANKSGIVING DAY AND FRIDAY. GUSTY WINDS WILL ALSO BE POSSIBLE WEDNESDAY NIGHT...ESPECIALLY OVER THE FAR EASTERN PLAINS. UNSETTLED CONDITIONS ARE THEN PROJECTED TO DEVELOP FROM THE WEEKEND INTO EARLY NEXT AS A WEATHER SYSTEM IMPACTS THE AREA. COMPUTER MODELS HAVING A TOUGH TIME SORTING OUT THE EXACT DETAILS OF THIS SYSTEM WITH THE 12Z/24TH ECMWF COMPUTER SIMULATIONS SUGGESTING THAT A CLOSED UPPER LOW OVER EAST-CENTRAL ARIZONA AT 12Z SUNDAY MOVES INTO THE TEXAS PANHANDLE REGION BY 00Z MONDAY AND THEN INTO EASTERN KANSAS BY 12Z MONDAY. 18Z/24TH DGEX HAS UPPER LOW OVER THE 4-CORNERS AT 12Z SUNDAY...WHICH SHIFTS TO NEAR EL PASO TEXAS BY 00Z MONDAY AND THEN NEARS SOUTHERN TEXAS BY 12Z MONDAY. THE 12Z/24TH GFS40...ON THE OTHER HAND...HAS A CLOSED LOW OVER SOUTH-CENTRAL ARIZONA AT 12Z SUNDAY WHICH MOVES INTO NORTHERN OLD MEXICO FROM 00Z TO 12Z MONDAY. SO FOR SENSIBLE WEATHER...WILL CONTINUE WITH POPS OVER THE CWFA FROM SATURDAY INTO EARLY NEXT WEEK IN COMBINATION WITH COOLER TEMPERATURES WHEN COMPARED TO THANKSGIVING DAY AND FRIDAY. FOR NOW...IT APPEARS THAT THE HIGHEST LIKELIHOOD OF MEASURABLE PRECIPITATION SHOULD BE NOTED FROM LATER SATURDAY INTO SUNDAY NIGHT. WARMEST TEMPERATURES OF THE LONGER TERM SHOULD BE NOTED ON THURSDAY AND FRIDAY...WHILE COOLEST TEMPERATURES OF THE LONG SHOULD BE EXPERIENCED ON SUNDAY. FINALLY...GUSTY WINDS ANTICIPATED FROM SUNDAY INTO MONDAY. && .AVIATION... VFR CONDITIONS EXPECTED AT THE 3 TAF SITES KCOS...KPUB AND KALS THROUGH THE NEXT 24 HOURS. A WEAK COOL FRONT WILL MOVE SOUTH ACROSS THE PLAINS AROUND SUNRISE BUT THIS FRONT SHOULD HAVE MINIMAL...OR NO AFFECT ON AIRPORT OPERATIONS. && .PUB WATCHES/WARNINGS/ADVISORIES... NONE. && $$