FXUS65 KLKN 261037
AFDLKN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
237 AM PST SAT DEC 26 2009
.SYNOPSIS...A LOW PRESSURE SYSTEM APPROACHING THE NORTHERN
CALIFORNIA COAST WILL BRING INCREASING CLOUDS TO NORTHERN AND
CENTRAL NEVADA TODAY. AS THIS LOW PRESSURE SYSTEM MOVES INTO
NORTHERN CALIFORNIA TONIGHT IT WILL WEAKEN AND BY THE TIME IT MOVES
INTO NEVADA LATE TONIGHT AND SUNDAY ONLY A FEW MOUNTAIN SHOWERS
ARE EXPECTED. A SERIES OF WEAK LOW PRESSURE SYSTEMS WILL MOVE
ACROSS THE REGION FROM TIME TO TIME NEXT WEEK BUT ONLY A SLIGHT
CHANCE OF SHOWERS IS EXPECTED.
&&
.SHORT TERM...TODAY THROUGH MONDAY. HIGH CLOUDS AHEAD OF SHORT
WAVE OFF THE CA COAST WILL SPREAD INTO WRN NV THIS MORNING THEN
INTO ERN NV THIS AFTERNOON. AS THE SHORT WAVE MOVES INTO THE
STRONG UPPER RIDGE OVER THE WRN U.S. IT WILL WEAKEN CONSIDERABLY
AND WHEN IT MOVES INTO NV TONIGHT AND SUNDAY ONLY A FEW MTN
SHOWERS ARE EXPECTED. MAIN EFFECT WILL BE THE CLOUD COVER AT NIGHT
WHICH WILL MODERATE TEMPS WITH READING IN THE SINGLE DIGITS AND
TEENS ABOVE ZERO. ON SUNDAY NIGHT AND MONDAY ANOTHER VERY WEAK
SHORT WAVE WILL PUSH ACROSS NV FOR THE POSSIBILITY OF A FEW MTN SHOWERS.
MAX TEMPS WILL CONTINUE MOSTLY BELOW FREEZING THROUGH MONDAY AS
WEAK SHORT WAVES WILL NOT BE ABLE TO BREAK THE STRONG INVERSIONS IN
PLACE.
.LONG TERM...MONDAY NIGHT THROUGH FRIDAY. WEAK LOW PRESSURE OVER
THE REGION MONDAY NIGHT AND TUESDAY WITH CONTINUED DRY AND COLDER
THAN NORMAL CONDITIONS. NORTHWESTERLY FLOW SETS UP TUESDAY NIGHT
OVER THE GREAT BASIN AS A RIDGE OF HIGH PRESSURE BUILDS OFF THE WEST
COAST. RIDGE IS EXPECTED TO SLOWLY PUSH INLAND...KEEPING THE THREAT
OF LIGHT SNOW SHOWERS ACROSS MAINLY NORTHERN PORTION OF THE GREAT
BASIN TUESDAY NIGHT THROUGH THURSDAY. RIDGE SHOULD COLLAPSE OVER THE
REGION BY FRIDAY WITH WEAK IMPULSES BRUSHING ACROSS NORTHERN
NEVADA...KEEPING PARTLY TO MOSTLY CLOUDY SKIES ACROSS THE REGION
WITH A SLIGHT CHANCE OF PRECIPITATION MAINLY TO NORTHERN NEVADA.
INCREASED CLOUD COVER WILL HELP TO KEEP OVERNIGHT TEMPERATURES NEAR
NORMAL.
&&
.AVIATION...WITH RIDGING IN PLACE...EXPECT LIGHT WINDS AND VFR
CONDITIONS AT ALL TAF SITES.
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