High Wind in California, April 22, 2016

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
305 PM PDT FRI APR 22 2016

.SYNOPSIS...A SERIES OF PACIFIC STORM SYSTEMS WILL BRING COOLER
TEMPERATURES, WINDY PERIODS, AND CHANCES OF PRECIPITATION TO
PORTIONS OF THE REGION THROUGH EARLY NEXT WEEK. THE
BEST CHANCES OF PRECIPITATION APPEAR TO BE IN THE SIERRA AND
SOUTHERN GREAT BASIN TONIGHT THEN AGAIN ON MONDAY.
&&

.SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT.

THE VIGOROUS TROUGH DIVING OVER NORTHERN AND CENTRAL CALIFORNIA
WILL CONTINUE TO PRODUCE WIDESPREAD SOUTH-SOUTHWEST WINDS GUSTING
OVER 40 MPH ACROSS MUCH OF THE FORECAST AREA THIS EVENING. THE TROUGH
AXIS IS FORECAST TO QUICKLY TRAVERSE SOUTHERN NEVADA BETWEEN 06Z AND
12Z SATURDAY MORNING AND WE WILL LIKELY SEE SOME OF THE STRONGEST
GUSTS ACROSS SOUTHERN NEVADA AND THE MOJAVE DESERT REGION BETWEEN
05Z AND 09Z. SEVERAL SENSORS ACROSS THE NEVADA NATIONAL SECURITY SITE
IN NORTHERN NYE COUNTY RECORDED GUSTS OVER 60 MPH THIS AFTERNOON AND
A HIGH WIND WARNING WAS ISSUED FOR CENTRAL/SOUTHERN NYE AND WESTERN
LINCOLN COUNTIES AS SIMILAR GUSTS WILL CONTINUE INTO EARLY THIS EVENING.
THE LATEST HIGH RES MODELS INDICATE A FAIRLY QUICK DROP IN WIND SPEEDS
AFTER 04Z ACROSS INYO COUNTY AND SOUTH CENTRAL NEVADA THEN DECREASING
AFTER 10Z FOR THE SPRING MOUNTAINS AND MUCH OF THE MOJAVE DESERT ZONES.
NUMEROUS SHOWERS WILL OCCUR ACROSS NORTHERN INYO AND ESMERALDA COUNTIES
THIS EVENING AND POPS WERE INCREASED CONSIDERABLE FOR THOSE ZONES.

SATURDAY SHOULD BE A FAIRLY PLEASANT DAY WITH NORTHWEST WINDS GENERALLY
LESS THAN 15 MPH AND TEMPERATURES RUNNING ABOUT 10-12 DEGREES COOLER
ACROSS SOUTHERN NEVADA AND SURROUNDING AREAS. ATTENTION THEN TURNS TO
THE NEXT PACIFIC SYSTEM WHICH WILL BE NEAR THE PACIFIC NORTHWEST SUNDAY
MORNING THEN DIVING TOWARD SOUTHERN NEVADA SUNDAY NIGHT. THIS WILL BRING
INCREASING SOUTH-SOUTHWEST WINDS AHEAD OF IT SUNDAY AFTERNOON AND EVENING
AND THE POTENTIAL FOR SHOWERS WILL SPREAD DOWN ACROSS INYO COUNTY AND
SOUTH CENTRAL NEVADA INTO THE SPRING MOUNTAINS AND SHEEP RANGE SUNDAY
NIGHT.

.LONG TERM...MONDAY THROUGH THURSDAY.

ACTIVE PATTERN CONTINUES WITH TWO MORE STORMS IN THE LONG TERM
PERIOD. THE FIRST WILL BE AFFECTING OUR AREA MONDAY. MODELS ARE
CURRENTLY IN GOOD AGREEMENT...AND IF THE SOLUTIONS PAN OUT...PRECIP
CHANCES WOULD BE ROUGHLY FROM LAS VEGAS NORTH WITH STRONG WESTERLY
WINDS FROM LAS VEGAS SOUTH. JUDGING FROM THE CURRENT MODELS...WIND
ADVISORIES WOULD LIKELY BE NEEDED AGAIN FOR MUCH OF THE MOJAVE
DESERT...BUT WILL CONTINUE TO MONITOR FOR ANY NORTHWARD OR SOUTHWARD
SHIFTS IN THE STORM TRACK. SINCE THE STORM IS TRACKING EASTWARD
RATHER THAN SOUTHWARD...POST FRONTAL NORTHERLY WINDS TUESDAY SHOULD
NOT BE SIGNIFICANT. BY WEDNESDAY THE NEXT STORM APPROACHES THE WEST
COAST WITH SOUTHWEST WINDS INCREASING AGAIN.

THERE IS MORE MODEL SPREAD WITH THE TRACK AND STRENGTH OF THIS
STORM...AS IS TYPICAL 6-7 DAYS OUT. A MODEL CONSENSUS WOULD SUGGEST
A SIMILAR OUTCOME TO THE MONDAY STORM...EXCEPT PERHAPS SLIGHTLY LESS
STRONG WIND. PLENTY OF TIME TO WATCH THIS...WITH THE MAIN MESSAGE AT
THIS TIME BEING TO PREPARE FOR WINDY AND RAPIDLY CHANGING WEATHER
FOR MUCH OF NEXT WEEK. SPEAKING OF RAPIDLY CHANGING...TEMPERATURES
WILL CRASH DOWN TO ABOUT TEN DEGREES BELOW NORMAL AREAWIDE ON MONDAY
AND TUESDAY...RISE A BIT WEDNESDAY...THEN GET KNOCKED DOWN AGAIN ON
THURSDAY AS THE NEXT STORM ARRIVES.
&&

.AVIATION...FOR MCCARRAN...WINDY EVENING IN STORE FOR THE TERMINAL
AS A STORM SYSTEM MOVES THROUGH THE AREA TONIGHT AND TOMORROW. SOUTH
WINDS HAVE INCREASED THIS AFTERNOON AND SPEEDS/GUSTS SHOULD CONTINUE
TO CLIMB GRADUALLY THROUGH THIS EVENING AS DIRECTIONS VERY SLOWLY TO
A MORE SOUTHWESTERLY DIRECTION OVERNIGHT. MAX SPEEDS EXPECTED TO BE
20-30 KTS WITH GUSTS UP TO 40 KTS BETWEEN ABOUT 03Z AND 09Z. WINDS
WILL CONTINUE TO VEER AS A COLD FRONT APPROACHES THE VALLEY LATE
TONIGHT...BUT SPEEDS WILL DECREASE RAPIDLY AFTER 09Z. WINDS WILL
SWITCH TO N OR NW IN THE 12Z TO 16Z PERIOD. ALTHOUGH WINDS MAY PICK
UP DURING AND JUST AFTER FRONTAL PASSAGE...MOST GUIDANCE SUGGESTS
SPEEDS 5-15 KTS WITH AN OCCASIONAL GUST TO 20 KTS TOMORROW WITH THE
STRONGEST WINDS IN THE MORNING. FEW-SCT MID AND HIGH CLOUDS EXPECTED
THROUGH THE PERIOD. MECHANICAL TURBULENCE CAN BE EXPECTED THROUGH
TONIGHT ESPECIALLY DOWNSTREAM OF THE SPRING MOUNTAINS.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...SOUTH/SOUTHWEST WINDS HAVE INCREASED ACROSS THE AREA
THIS AFTERNOON WITH SPEEDS GENERALLY 15-30 KTS WITH GUSTS UP TO 40
KTS. WINDS SHOULD CONTINUE TO INCREASE SLOWLY THROUGH THE EVENING
HOURS...ESPECIALLY IN THE SOUTHERN GREAT BASIN AND INYO COUNTY.
SPOTTY AREAS OF BLOWING DUST HAVE BEEN REPORTED THIS AFTERNOON...AND
CAN BE EXPECTED THROUGH THE EVENING HOURS. SPEEDS SHOULD BEGIN TO
DECREASE RAPIDLY AFTER 09Z. MOUNTAIN WAVE ACTIVITY IS POSSIBLE
DOWNSTREAM OF THE SIERRA, WHITES, AND SPRING MOUNTAINS, AND
MECHANICAL TURBULENCE IS LIKELY THROUGH THE OVERNIGHT HOURS. A COLD
FRONT WILL SWEEP ACROSS THE AREA OVERNIGHT AND TOMORROW MORNING,
SWITCHING WINDS TO NORTH/NORTHWEST. DURING AND JUST AFTER FRONTAL
PASSAGE, WINDS MAY PICK UP (10-20 KTS), BUT OVERALL SPEEDS WILL BE
CONSIDERABLY LOWER TOMORROW THAN THOSE OBSERVED TODAY. BRIEF SHOT OF
LIGHT PRECIPITATION IS EXPECTED IN THE SIERRA AND WHITE MOUNTAINS
THIS EVENING/OVERNIGHT WITH BKN-OVC 050-120 CIGS AND SOME MOUNTAIN
OBSCURATIONS POSSIBLE...OTHERWISE FEW-SCT MID AND HIGH CLOUDS ARE
ANTICIPATED FOR MOST OF THE REGION THROUGH THE PERIOD.
&&

.SPOTTER INFORMATION STATEMENT...SPOTTERS SHOULD REPORT ANY
SIGNIFICANT WEATHER ACCORDING TO STANDARD OPERATING PROCEDURES.

SHORT TERM...ADAIR
LONG TERM.... MORGAN
AVIATION....SHAFER

FOR MORE FORECAST INFORMATION...SEE US ON OUR WEBPAGE:

HTTP://WEATHER.GOV/LASVEGAS OR FOLLOW US ON FACEBOOK AND TWITTER

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
219 PM PDT FRI APR 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0114 PM     NON-TSTM WND GST 3 SSW MERCURY           36.62N 116.02W
04/22/2016  M62 MPH          NYE                NV   ASOS

            ASOS STATION DESERT ROCK AIRPORT /DRA/

&&

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