Dust Devil in Nevada, May 28, 2015

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
235 PM PDT THU MAY 28 2015

.SYNOPSIS...ISOLATED SHOWERS OR THUNDERSTORMS WILL STILL BE POSSIBLE
THIS EVENING ACROSS THE HIGHER TERRAIN OF SOUTHERN NEVADA AND IN THE
EASTERN SIERRA. THE SHOWER ACTIVITY WILL BE EVEN LESS ON FRIDAY
AFTERNOON WITH DRY AND HOT CONDITIONS EXPECTED ACROSS THE ENTIRE
AREA ON SATURDAY AND SUNDAY. TEMPERATURES WILL MODERATE NEXT
WEEK...BUT CONTINUE TO REMAIN ABOVE NORMAL.
&&

.SHORT TERM...TODAY THROUGH SUNDAY NIGHT.

TEMPERATURES ARE 3 TO 5 DEGREES WARMER IN COMPARISON TO THIS TIME
YESTERDAY AND THAT TREND WILL CONTINUE THE NEXT FEW DAYS. VISIBLE
SATELLITE IMAGERY SHOWS SOME CUMULUS DEVELOPMENT IN AN AREA OF WEAK
INSTABILITY ACROSS CENTRAL NYE AND LINCOLN COUNTIES. A FEW SHOWERS
ARE POSSIBLE THIS EVENING AND A LIGHTNING STRIKE OR TWO CANNOT BE
RULED OUT...ESPECIALLY ACROSS THE EASTERN PORTIONS OF LINCOLN
COUNTY. A BAND OF CIRRUS MOVING IN FROM CENTRAL AND NORTHERN
CALIFORNIA WILL PROVIDE SOME HIGH CLOUDS ACROSS MUCH OF THE AREA
DURING THE EVENING HOURS. A SLIGHT CHANCE OF SHOWERS ARE POSSIBLE
ONCE AGAIN TOMORROW AFTERNOON IN LINCOLN COUNTY...BUT OVERALL
COVERAGE WILL BE LESS THAN TODAY.

THE MAIN ISSUE OF THE FORECAST PERIOD WILL BE THE RAPID INCREASE IN
TEMPERATURES AS A STRONG RIDGE OF HIGH PRESSURE BUILDS INTO THE
AREA. HIGH TEMPERATURES TOMORROW ARE EXPECTED TO BE ON AVERAGE 25
DEGREES WARMER THAN THEY WERE JUST ONE WEEK AGO. TEMPERATURES ARE
EXPECTED TO BREAK ABOVE THE CENTURY FOR THE FIRST TIME OFFICIALLY IN
LAS VEGAS ON SATURDAY...WITH SUNDAY LOOKING TO BE THE WARMEST DAY OF
THE PERIOD. TEMPERATURES ARE EXPECTED TO REACH WITHIN A FEW DEGREES
OF RECORD LEVELS IN LOCATIONS LIKE LAS VEGAS...BARSTOW AND KINGMAN
ON SUNDAY.

ON ANOTHER NOTE...THE FIRST TROPICAL STORM OF THE SEASON HAS FORMED
IN THE EASTERN PACIFIC...ANDRES...WHICH IS FORECAST TO BECOME A
HURRICANE THIS EVENING. THE FORECAST KEEPS ANDRES WELL AWAY FROM THE
SOUTHWEST U.S.

.LONG TERM...MONDAY THOUGH THURSDAY NIGHT.

A SEASONAL WEEK SETTING UP FOR NEXT WEEK BEGINNING WITH A PACIFIC
SHORTWAVE MOVING INTO THE PAC NW MONDAY WHICH THEN SETS THE STAGE
FOR A WEEK DEFINED BY WEAK TROUGHING. THIS WILL BRING IN MORE
SEASONAL TYPE CONDITIONS FOR EARLY JUNE COMPARED TO THE LATE
JUNE/EARLY JULY TEMPERATURES EXPECTED OVER THE FINAL MAY WEEKEND.
ANY SHORTWAVE ENERGY MOVING THROUGH THE TROUGH PATTERN IS NOT
EXPECTED TO PRODUCE ANY ACCUMULATING PRECIPITATION ALTHOUGH ANY
DEEPENING IN ONE OF THESE PASSING SHORTWAVES COULD RESULT IN LIGHT
PRECIP OVER THE SIERRA AND SOUTHERN GREAT BASIN MOUNTAINS. MONDAY
LOOKS LIKE THE BREEZY DAY OF THE WEEK ALTHOUGH LOCAL AFTERNOON
BREEZES ARE LIKELY EACH DAY.
&&

.AVIATION...FOR MCCARRAN...WINDS WILL FAVOR TYPICAL DIURNAL PATTERN
AT 10 KTS OR LESS THROUGH MUCH OF THE EVENING...OCCASIONAL GUSTS OF
14 TO 18 KTS ARE ALSO POSSIBLE. A FEW CLOUDS AOA 12K FEET THIS
EVENING WITH SCT-BKN CLOUDS AOA 25K FEET TONIGHT. SIMILAR CONDITIONS
EXPECTED ON FRIDAY WITH LIGHT AND VARIABLE WINDS DURING THE
MORNING...BECOMING SOUTHEAST AT 10 KTS OR LESS IN THE AFTERNOON.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...ISOLATED SHRA/TSRA ENDING BY 05Z FRIDAY NORTH OF KIYK-
KDRA-KCDC LINE. GUSTY AND ERRATIC WINDS ARE POSSIBLE IN AND NEAR ANY
SHRA/TSRA WITH CIGS LOWERING TO 5K-8K FEET AND LOCAL MOUNTAIN
OBSCURATIONS POSSIBLE. OTHERWISE WINDS WILL FAVOR TYPICAL DIURNAL
DIRECTIONAL TRENDS AT 10 KTS OR LESS THIS EVENING. FEW-SCT CLOUDS
AOA 12K FEET THIS EVENING WITH SCT-BKN CLOUDS AOA 25K FEET TONIGHT.
ISOLATED SHRA/TSRA POSSIBLE IN LINCOLN COUNTY FRIDAY
AFTERNOON...EVENING...OTHERWISE DRY CONDITIONS ELSEWHERE ON FRIDAY
AND THROUGH THE WEEKEND.
&&

.SPOTTER INFORMATION STATEMENT...SPOTTERS ARE ENCOURAGED TO REPORT
ANY SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING
PROCEDURES.
&&

SHORT TERM/AVIATION...CZYZYK
LONG TERM...SALMEN

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