Wind Chill Advisory 13, NWS Elko, NV

473 
WWUS45 KLKN 120926
WSWLKN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ELKO NV
126 AM PST TUE FEB 12 2013

NVZ035-121600-
/O.CON.KLKN.WC.Y.0013.000000T0000Z-130212T1600Z/
WHITE PINE COUNTY-
INCLUDING THE FOLLOWING LOCATIONS...ELY...MCGILL...CONNORS PASS...
GREAT BASIN NATIONAL PARK
126 AM PST TUE FEB 12 2013

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS
MORNING...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST THIS
MORNING. 

* WIND CHILL VALUES...BETWEEN 20 DEGREES BELOW ZERO AND 30 
  DEGREES BELOW ZERO AT TIMES. 

* TIMING...LOWEST WIND CHILL READINGS WILL OCCUR GENERALLY
  BETWEEN 3 AM AND 7 AM PST. 

* LOCATIONS INCLUDE: ELY...MCGILL...CONNORS PASS...GREAT BASIN
  NATIONAL PARK.

* IMPACTS...IT ONLY TAKES A MINUTE OR SO AT THESE VALUES FOR CORE
  BODY TEMPERATURES TO DROP. ANIMALS MAY NEED BLANKETS...EXTRA
  FOOD OR TO BE BROUGHT INDOORS. THEY ARE ALSO VULNERABLE TO FROST
  BITE AND HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR AN ADEQUATE
COAT...HAT...AND GLOVES.

&&

$$

PJS

264 
WWUS45 KLKN 121546
WSWLKN

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE ELKO NV
746 AM PST TUE FEB 12 2013


NVZ035-121700-
/O.EXP.KLKN.WC.Y.0013.000000T0000Z-130212T1600Z/
WHITE PINE COUNTY-
INCLUDING THE FOLLOWING LOCATIONS...ELY...MCGILL...CONNORS PASS...
GREAT BASIN NATIONAL PARK
746 AM PST TUE FEB 12 2013

...WIND CHILL ADVISORY WILL EXPIRE AT 8 AM PST THIS MORNING...

THE WIND CHILL ADVISORY WILL EXPIRE AT 8 AM PST THIS MORNING. 

WIND CHILL VALUES HAVE DROPPED BELOW ADVISORY CRITERIA. THEREFORE 
THE WIND CHILL ADVISORY WILL BE ALLOWED TO EXPIRE AT 9 AM.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ELKO NV
217 AM PST MON FEB 11 2013

.SYNOPSIS...ISOLATED SNOW SHOWERS POSSIBLE TODAY OVER THE MOUNTAINS.
MEANWHILE HIGH PRESSURE WILL MIGRATE INTO THE GREAT BASIN.  PATCHY
FREEZING FOG MAY DEVELOP IN VALLEYS OF NORTHEASTERN NEVADA THIS
MORNING AND THEN AGAIN TUESDAY MORNING. ADDITIONALLY MORE BITTERLY
COLD CONDITIONS ON TAP WITH SINGLE DIGIT TEMPERATURES EXPECTED.

&&

.SHORT TERM...TONIGHT THROUGH WEDNESDAY. THE IR SATELLITE IMAGE
DEPICTS THE CENTER OF UPPER CIRCULATION OVER THE UTAH/COLORADO
BORDER WITH PERSISTENT NORTHERLY FLOW OVER THE GREAT BASIN. THE GFS
AND NAM DEPICT A NORTHEAST TO SOUTHWEST ORIENTED RIDGE AXIS FROM
ALBERTA TO THE CALIFORNIA COAST.  THE PWS ON THE GFS40 SUGGEST THAT
THE WRAP AROUND ACTIVITY IS DRAWING TO A CLOSE...ALTHOUGH GIVEN THE
PATTERN...ISOLATED MOUNTAINS SNOWS POSSIBLE TODAY. WITH THE CLOUDS
MOVING OFF TO THE EAST...EXPECT STRONG RADIATIONAL COOLING AFTER
SUNSET. ACROSS THE VALLEYS AND BASINS OF NORTHEASTERN NV...SINGLE
DIGIT MORNING TEMPERATURES ARE PROJECTED THE NEXT SEVERAL
MORNINGS...ALONG WITH AFTERNOON TEMPERATURES STRUGGLING TO CLIMB
ABOVE FREEZING. THE MAV CONTINUES TO BE SLIGHTLY WARMER THAN THE MET
WITH EKO...BUT DUE TO THE SUBSTANTIAL SNOWPACK IN PLACE THIS
FORECAST PERIOD...HEDGING TOWARDS TO COLDER MET GUIDANCE. THE
INGREDIENTS FOR FREEZING FOG WILL MATERIALIZE...MOISTURE
SOURCE...STABLE CONDITIONS...CALM WINDS. HOWEVER...PRIMARY FORECAST
CHALLENGE WILL BE DETERMINING THE AMOUNT OF FREEZING FOG IN THE
VALLEYS OF THE LKN CWA.

.LONG TERM...WEDNESDAY NIGHT THROUGH NEXT SUNDAY. THE MODELS ARE IN
GOOD GENERAL AGREEMENT WITH THE SYNOPTIC PATTERN THROUGH
FRIDAY...THEN MODELS ARE HAVING DIFFICULTY DECIPHERING THE IMPACT
AND TIMING OF THE NEXT UPPER LEVEL TROUGH TO AFFECT THE GREAT BASIN.
PACIFIC HIGH PRESSURE CENTERED ABOUT 700 MILES WEST OF SOUTHERN
CALIFORNIA WEDNESDAY NIGHT WILL SLOWLY MOVE NORTHEAST TO RECENTER
OVER NORTHERN CALIFORNIA BY 00Z SATURDAY. THE RIDGE AXIS WILL THEN
MOVE ACROSS THE LKN CWFA FRIDAY NIGHT...A LITTLE FASTER THAN
PROPOSED ON MODEL RUNS 24 HOURS AGO. AS SEVERAL WEAK DISTURBANCES
MOVE THROUGH THE NORTHWEST FLOW ALOFT...NORTHEAST NEVADA WILL SEE
PERIODS OF INCLEMENT WEATHER THROUGH THURSDAY NIGHT. THIS DIRTY FLOW
IS ALSO A LITTLE LONGER-LASTING THAN PREVIOUS MODEL RUNS SUGGESTED.
ADDRESSED THIS PERIOD WITH LOW POPS WITH LITTLE SNOW ACCUMULATION
EXPECTED. AS THE PROGRESSIVE RIDGE MOVES ACROSS NEVADA...DRY
CONDITIONS ARE EXPECTED FRIDAY THROUGH SATURDAY EVENING. THE NEXT
SYSTEM MAY BEGIN AFFECTING THE GREAT BASIN AS EARLY AS MIDNIGHT
SATURDAY NIGHT. HOWEVER THE MODELS ARE IN AGREEMENT WITH THE ONSET
OF PRECIPITATION OR THE DEPTH OF THE NEXT UPPER LEVEL HAS NOT BEEN

&&

.AVIATION...PATCHY FREEZING FOG EXPECTED ACROSS NORTHERN AND
SOUTHEAST NEVADA THIS MORNING AND AGAIN TUESDAY
MORNING...POTENTIALLY AFFECTING KWMC KEKO AND KELY. SNOW SHOWERS
WILL CONTINUE ACROSS EASTERN NEVADA THROUGH THIS AFTERNOON...KELY
COULD SEE SOME REDUCED VIS IN LIGHT SNOW SHOWERS.

&&

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

97/92/92