FXUS65 KLKN 251050
AFDLKN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
250 AM PST FRI DEC 25 2009

.SYNOPSIS...HIGH PRESSURE OVER THE REGION WILL CONTINUE TO KEEP
STRONG INVERSIONS IN PLACE RESULTING IN VERY COLD TEMPERATURES
THROUGH SATURDAY. A WEAK LOW PRESSURE SYSTEM WILL BRING INCREASING CLOUDS
SATURDAY NIGHT FOR MODERATING NIGHTTIME TEMPERATURES. THIS LOW
PRESSURE SYSTEM MAY BRING A FEW LIGHT SNOW SHOWERS TO WESTERN
NEVADA. NEXT WEEK WILL SEE MOSTLY DRY WEATHER BUT A FEW WEAK LOW
PRESSURE SYSTEMS MAY BRING A FEW SNOW SHOWERS.
&&

.SHORT TERM...TODAY THROUGH SUNDAY. SHARP UPPER RIDGE WITH AXIS
ALONG THE WEST COAST WILL CONTINUE TO PRODUCE STRONG INVERSIONS
ESPECIALLY OVER THE SNOW COVERED VALLEYS. THIS WILL CONTINUE THE
VERY COLD NIGHTTIME TEMPS WITH DAYTIME HIGHS REMAINING MOSTLY
BELOW FREEZING. SATURDAY NIGHT A WEAKENING SHORT WAVE WILL PUSH
INTO WRN NV WITH SOME ISOLATED SNOW SHOWERS POSSIBLE. THIS SHORT
WAVE WILL CONTINUE TO WEAKEN AS IT MOVES INTO ERN NV SUNDAY AND
NOT EXPECTING ANYTHING MORE THAN SOME CLOUDS ACROSS ERN NV.
INCREASED CLOUDINESS SATURDAY NIGHT WILL HELP MODERATE LOW TEMPS
BUT WILL KEEP HIGH TEMPS ON SUNDAY COLDER THAN SATURDAY. THIS SHORT
WAVE WILL BE TOO WEAK TO BREAK THE INVERSIONS. 

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY. WEAK LOW PRESSURE OVER 
THE REGION SUNDAY NIGHT THROUGH TUESDAY WITH CONTINUED DRY AND 
COLDER THAN NORMAL CONDITIONS. TUESDAY NIGHT A WEAK SYSTEM WILL PUSH 
INTO NORTHWESTERN NEVADA...AND SPREAD EAST-SOUTHEAST ACROSS THE CWA 
THROUGH WEDNESDAY EVENING. INCREASED CLOUD COVER WILL HELP TO KEEP 
OVERNIGHT TEMPERATURES NEAR NORMAL. NOT TOO MUCH IN THE WAY OF QPF 
EXPECTED WITH THE SYSTEM...WITH MANY AREAS LIKELY NOT RECEIVING ANY 
SNOW. MODEL SOLUTIONS DIVERGING SIGNIFICANTLY MID-WEEK AND BEYOND.
&&

.AVIATION...WITH RIDGING IN PLACE...EXPECT LIGHT WINDS AND VFR 
CONDITIONS AT ALL TAF SITES. PATCHY FREEZING FOG MAY DEVELOP IN THE 
OVERNIGHT AND EARLY MORNING HOURS IN THE VICINITY OF WMC.

THE ASOS AT KELY IS NOT FUNCTIONING CORRECTLY. TAFS ARE HOWEVER 
BEING ISSUED AS RIDGING OVER THE AREA IS KEEPING WX BENIGN. AMEND 
NOT SCHEDULED IS APPENDED TO THE KELY TAF TO SIGNAL THAT ANY 
DISCREPANCIES BETWEEN THE TAF AND THE ACTUAL WX CAN NOT BE DETECTED 
BY THE AUTOMATED WX EQUIPMENT...AND THEREFORE THE TAF COULD AT TIMES 
BE UNREPRESENTATIVE OF THE ACTUAL CONDITIONS WITHOUT FORECASTERS 
BEING AWARE OF ANY DISCREPANCIES.
&&

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

$$

91/96/96