Area Forecast Discussion
Issued by NWS Las Vegas, NV

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000 FXUS65 KVEF 262132 AFDVEF AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAS VEGAS NV 130 PM PST WED NOV 26 2014 .SYNOPSIS... HIGH PRESSURE WILL BRING DRY AND SUNNY CONDITIONS TO THE AREA THROUGH THE HOLIDAY WEEKEND. A STORM SYSTEM WILL MOVE INTO THE WEST COAST LATE THIS WEEKEND AND IMPACT OUR AREA NEXT WEEK. && .SHORT TERM...THROUGH SATURDAY NIGHT... A STRONG RIDGE REMAINS IN CONTROL ACROSS THE SOUTHWEST TODAY WITH THE NEAREST SUBSTANCIAL CLOUD COVER ALL THE WAY UP IN NORTHWESTERN NEVADA. THE HIGH PRESSURE RIDGE WILL FLATTEN OUT A BIT TOMORROW ALLOWING SOME PASSING HIGH CLOUDS TO ENTER OUR SKIES BUT OTHERWISE A DRY AND MILD THANKSGIVING DAY IS IN STORE WITH TEMPERATURES 5 TO 10 DEGREES ABOVE NORMAL. WARM AND DRY CONDITIONS WILL CONTINUE FRIDAY AND SATURDAY AS THE RIDGE SLOWLY BREAKS DOWN AND THE FLOW BECOMES MORE ZONAL ACROSS THE COUNTRY. .LONG TERM...SUNDAY THROUGH TUESDAY... WHILE A SLOW COOLING TREND IS IN STORE FOR THE END OF THE HOLIDAY WEEKEND AS HIGH PRESSURE WEAKENS ACROSS THE WESTERN CONUS...TEMPERATURES WILL REMAIN ABOVE NORMAL THROUGH MONDAY. WINDS WILL PICK UP ALONG THE SIERRA CREST SUNDAY AS THE PRESSURE GRADIENT TIGHTENS IN RESPONSE TO AN APPROACHING PACIFIC STORM SYSTEM. MODELS CONTINUE TO TREND SLOWER IN ITS TIMING. HAVE REDUCED CHANCES OF PRECIPITATION EARLY IN THE EXTENDED PERIOD TO REFLECT THIS TREND. WINDS WILL BECOME BREEZY AND SOUTHERLY ACROSS THE AREA AS THE STORM SYSTEM GETS CLOSER. AT THIS TIME IT LOOKS LIKE MOISTURE FROM THE STORM WILL REACH THE SIERRA LATE MONDAY AND SPREAD ACROSS THE FORECAST AREA ON TUESDAY. THERE IS SIGNIFICANT MODEL DISCREPANCY REGARDING THE STRENGTH AND TIMING OF THIS SYSTEM. CONFIDENCE IS MODERATE IN A MODERATE PRECIPITATION EVENT ACROSS THE AREA BUT CONFIDENCE IS LOW IN ITS TIMING AND DURATION. && .AVIATION... FOR MCCARRAN...LIGHT AND VARIABLE WINDS EXPECTED THIS EVENING TO GIVE WAY TO TYPICAL LIGHT SOUTHERLY DRAINAGE FLOW OVERNIGHT. REPEATED CONDITIONS EXPECTED TOMORROW WITH LIGHT AND VARIABLE WINDS EXPECTED AFTER 18Z. FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA.... VFR CONDITIONS AND LIGHT WINDS EXPECTED THROUGH FRIDAY. SCATTERED HIGH CLOUDS WILL BE ON THE INCREASE THURSDAY AOA 25KFT. && .SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. && $$ SHORT TERM...OUTLER LONG TERM...BERC FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE: HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER

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