FXUS65 KLKN 231822
AFDLKN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
1022 AM PST WED DEC 23 2009

.SYNOPSIS...HIGH PRESSURE WILL BUILD INTO THE REGION BEHIND
YESTERDAYS STORM SYSTEM. THIS WILL BRING DRY WEATHER THROUGH THE
WEEKEND. HOWEVER TEMPERATURES WILL BE WELL BELOW NORMAL DUE TO A
COLD NORTHERLY FLOW ALOFT AND STRONG INVERSIONS SETTING UP OVER
THE SNOW COVERED VALLEYS. 

&&

.UPDATE...ELY TAF HAS BEEN ISSUED...BASED UPON IMPROVED WEATHER
CONDITIONS.

&&

.PREV DISCUSSION... /ISSUED AT 246 AM / 

SYNOPSIS...HIGH PRESSURE WILL BUILD INTO THE REGION BEHIND
YESTERDAYS STORM SYSTEM. THIS WILL BRING DRY WEATHER THROUGH THE
WEEKEND. HOWEVER TEMPERATURES WILL BE WELL BELOW NORMAL DUE TO A
COLD NORTHERLY FLOW ALOFT AND STRONG INVERSIONS SETTING UP OVER
THE SNOW COVERED VALLEYS. &&

SHORT TERM...TODAY THROUGH FRIDAY. UPPER RIDGE WILL BUILD INTO
NRN AND CNTRL NV TODAY BEHIND YESTERDAYS STORM SYSTEM. WITH THE
RIDGE AXIS ALONG THE COAST THIS WILL PUT OUR AREA UNDER A COLD NLY
FLOW ALOFT. WITH MOST VALLEYS SNOW COVERED STRONG INVERSIONS WILL
SET UP KEEPING MANY AREAS BELOW FREEZING DURING THE DAYTIME WITH
NIGHTTIME TEMPS DROPPING BELOW ZERO...ESPECIALLY ACROSS ERN NV.

LONG TERM...FRIDAY NIGHT THROUGH NEXT TUESDAY. MODELS IN
AGREEMENT THROUGH SATURDAY AFTERNOON WITH AN AMPLIFIED RIDGE OVER
THE WESTERN U.S. LEADING TO DRY CONDITIONS OVER THE GREAT BASIN.
RUN TO RUN CONSISTENCY IN THE MODELS FROM LATE IN THE WEEKEND ON
INTO NEXT WEEK IS POOR...AS MODELS STRUGGLE IN THE HANDLING OF 
EXACTLY HOW TO BREAK DOWN THE WESTERN U.S. RIDGE. GFS KEEPS THE
GREAT BASIN DRY THROUGH THE LONG TERM PERIOD...WITH THE EC MODEL
RE-INTRODUCING PRECIP SATURDAY NIGHT THROUGH SUNDAY EVENING.
TRENDED POPS TOWARD A MIX OF THE GFS AND CLIMO FOR THE LATTER
PORTION OF THE LONG TERM PERIOD AS THE GFS SEEMS TO BE HANDLING
SYSTEMS A LITTLE BETTER THAN THE GFS LATELY. &&

AVIATION...WINDS ARE LIGHT IN MOST AREAS THIS MORNING...HOWEVER A 90KT
JET MOVING OVER THE GREAT BASIN HAS THE POTENTIAL TO CREATE GUSTY
NORTHERLY WINDS ALONG LEE-SIDES OF MOUNTAINS AND IN AREAS
FAVORABLE FOR CHANNELING OF WINDS...SUCH AS THE TONOPAH AND
WENDOVER AREAS.

SNOW SHOWER ACTIVITY HAS DIMINISHED ACROSS MOST OF NORTHERN AND
CENTRAL NEVADA...HOWEVER LIGHT SNOW SHOWERS WILL BE POSSIBLE OVER
AND NEAR THE MOUNTAINS OF EASTERN NEVADA THROUGH 18Z TODAY. &&

&&

.LKN WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

97/97/97