Special Weather Statement, NWS Reno, NV

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
210 AM PDT MON JUN 10 2013

.SYNOPSIS...

LOW PRESSURE MOVING THROUGH CALIFORNIA AND NEVADA WILL BRING
SHOWERS AND THUNDERSTORMS TO THE REGION TODAY. STORMS HAVE THE
POTENTIAL TO PRODUCE HEAVY RAIN, GUSTY WINDS, HAIL, AND DEADLY
LIGHTNING. FOR TUESDAY THROUGH NEXT WEEK CONDITIONS WILL BE DRY
WITH TEMPERATURES CLOSER TO SEASONAL AVERAGES. AFTERNOON WINDS UP
TO 40 MPH CAN BE EXPECTED THROUGH WEDNESDAY.

&&

.SHORT TERM...

UPPER LEVEL LOW CONTINUES TO LIFT TOWARD THE NORTHEAST EARLY THIS
MORNING, AND HAS JUST MADE IT ONTO THE SOUTHERN CALIFORNIA COAST
AS OF 2 AM MONDAY MORNING. THE MAIN DEFORMATION AXIS WHICH
BROUGHT SHOWERS AND THUNDERSTORMS TO NORTHEAST CALIFORNIA AND
NORTHWEST NEVADA SUNDAY EVENING IS LIFTING NORTHWARD INTO OREGON
AND IDAHO OVERNIGHT. ANOTHER WAVE IS MOVING THROUGH THE SACRAMENTO
VALLEY EARLY THIS MORNING, KICKING OFF THUNDERSTORMS THERE.

THE LOW SHIFTING INTO THE REGION WILL DESTABILIZE THE ATMOSPHERE
AGAIN WITH ADDITIONAL SHOWERS AND THUNDERSTORMS EXPECTED. OVERALL
THE ATMOSPHERE IS QUITE MOIST EARLY THIS MORNING WITH DEW POINTS
IN THE MID 30S TO MID 40S. THE ONLY EXCEPTION TO THIS ARE AREAS
EAST OF HIGHWAY 95 WHERE DRIER AIR AHEAD OF THE LOW WILL KEEP DEW
POINTS IN THE TEENS. THEREFORE AM EXPECTING THAT STORMS WILL
INITIATE ALONG THE SIERRA, SIERRA FRONT, AND NORTHEAST CALIFORNIA,
PROPAGATING EASTWARD INTO THE AFTERNOON AS WEST WINDS INCREASE.
THE MAIN STORM THREATS TODAY WILL BE LOCALIZED HEAVY RAIN AND
HAIL, BUT WIND GUSTS UP TO 50 MPH ARE STILL POSSIBLE. IN
ADDITION, THERE WILL BE PLENTY OF LIGHTNING, SO THOSE WITH
OUTDOOR PLANS SHOULD CLOSELY MONITOR THE FORECAST TO STAY SAFE
FROM THE STORMS. FIRE STARTS ARE MUCH MORE UNLIKELY TODAY DUE TO
THE WETTING RAINS, HOWEVER DRY STRIKES OUTSIDE OF THE MAIN CORE
ARE STILL POSSIBLE. PLEASE SEE THE FIRE SECTION BELOW FOR
ADDITIONAL DETAILS.

BROAD SCALE TROUGH SETTLES ACROSS THE WEST FOR TUESDAY INTO
WEDNESDAY WITH DRY AND STABLE FLOW RESULTING. INCREASED WESTERLIES
IN THE AFTERNOON WILL BRING WIDESPREAD VALLEYS GUSTS OF 30 TO 40
MPH, AND UP TO 45 MPH IN WIND PRONE AREAS, ACROSS THE REGION ALONG
WITH AFTERNOON HUMIDITY DROPPING BELOW 15 PERCENT. THIS IS A
CONCERN BECAUSE ANY HOLDOVER FIRES FROM THIS WEEKEND COULD BECOME
ACTIVE IN THESE DRIER AND BREEZIER CONDITIONS. TEMPERATURES TO
REMAIN NEAR NORMAL THROUGH THE SHORT TERM PERIOD. DF

.LONG TERM...THURSDAY THROUGH SUNDAY...

MODELS CONTINUE TO SHOW A TROUGH ALONG THE WEST COAST WITH A DRY
SOUTHWEST FLOW OVER THE SIERRA AND WESTERN NEVADA. THIS WILL HELP
MAINTAIN BREEZY AFTERNOON AND EVENING WINDS WITH HIGHS WITHIN A
FEW DEGREES OF NORMAL.

FOR THURSDAY A WAVE PASSES ALONG THE SOUTHERN OREGON BORDER WITH A
BIT OF MOISTURE AND INSTABILITY. THIS COULD ACTIVATE THE
LASSEN-WASHOE CONVERGENCE ZONE SO HAVE ADDED 15% CHANCE OF SHOWERS
AND THUNDERSTORMS TO AREAS ALONG AND NORTH OF A SUSANVILLE-GERLACH
LINE.

FOR FRIDAY THE PACIFIC NORTHWEST TROUGH DIGS OFF THE CALIFORNIA
COAST, THEN SLOWLY MOVES INLAND FOR THE WEEKEND.  GOOD CONFIDENCE
HERE IN 30-40 MPH GUSTS OVER THE WEEKEND.  WINDS COULD BE STRONGEST
ON SUNDAY AS THE JET PASSES OVER THE RENO-TAHOE AREA.  MOST OF THE
MOISTURE FROM THIS TROUGH REMAINS OVER NORTHWEST CALIFORNIA AND
SOUTHWEST OREGON, BUT IF THE TROUGH WERE TO SHIFT FARTHER INLAND
THERE COULD BE A FEW SHOWERS FOR LASSEN AND PLUMAS COUNTIES.  BRONG

&&

.AVIATION...

LOW OFF THE CALIFORNIA COAST WILL TRACK ACROSS THE SIERRA AND
WESTERN NEVADA TODAY WITH SHOWERS AND THUNDERSTORMS REDEVELOPING BY
LATE MORNING.  MAIN THREATS FROM THE STRONGER THUNDERSTORMS IS MVFR
CONDITIONS DUE TO MODERATE TO HEAVY RAIN, SMALL HAIL AND WIND GUSTS
TO 45 KTS.

BEST CHANCE OF SHOWERS AND THUNDERSTORMS TODAY WILL DEVELOP NORTH OF
KTRK-KLOL AND SOUTH OF KTVL-KNFL. THOUGH  A FEW SHOWERS AND STORMS
WILL DEVELOP TODAY NEAR RENO-CARSON WITH ABUNDANT MOISTURE AND
INSTABILITY IN PLACE.

CONDITIONS WILL DRY OUT TONIGHT WITH AN INCREASING SOUTHWEST FLOW
ALOFT FOR TUESDAY AND WEDNESDAY.  PEAK AFTERNOON GUSTS COULD
APPROACH FOR THE EASTERN SIERRA AND WESTERN NEVADA TERMINALS.  BRONG

&&

.FIRE WEATHER...

* SHOWERS AND THUNDERSTORMS WITH WETTING RAINS TODAY.
* 30-40 MPH GUSTS AND LOW HUMIDITY TUESDAY AND WEDNESDAY.

LOW WILL PASS NORTH ACROSS THE SIERRA AND WESTERN NEVADA TODAY WITH
SHOWERS AND THUNDERSTORMS REDEVELOPING BY LATE MORNING.  YESTERDAY'S
SHOWERS AND STORMS HAVE RAISED HUMIDITY ABOUT 30% HIGHER THAN 24
HOURS AGO, THIS WILL HELP INCREASE THE SIZE OF THE RAIN CORES AND
GREATLY DECREASE THE NUMBER OF DRY STRIKES. THERE IS A BIT OF DRY
AIR PUSHING NORTH INTO AREAS EAST OF HIGHWAY 95, BUT AS THE LOW
MOVES INTO CENTRAL NEVADA HUMIDITY SHOULD RISE QUICKLY THIS
AFTERNOON. STRONG OUTFLOWS ARE POSSIBLE TODAY BUT SHOULD REMAIN
BELOW 50 MPH.

NEXT CONCERN IS TUESDAY AND WEDNESDAY.  A TROUGH DEVELOPS OVER THE
PACIFIC NORTHWEST AND WILL PRODUCE A DRY AND STABLE SOUTHWEST FLOW
OVER THE SIERRA AND WESTERN NEVADA.  THIS WILL INCREASE SURFACE
GUSTS TO 30-40 MPH WITH AFTERNOON HUMIDITY NEAR AND BELOW 15%. BRONG

&&

.REV WATCHES/WARNINGS/ADVISORIES...
NV...CA...RED FLAG WARNING UNTIL 3 AM PDT EARLY THIS MORNING CAZ271-272.

&&

FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/RENO (ALL LOWER CASE)

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RENO NV
622 AM PDT MON JUN 10 2013

CAZ070>073-NVZ001>005-111200-
SURPRISE VALLEY CALIFORNIA-LASSEN-EASTERN PLUMAS-
EASTERN SIERRA COUNTIES-GREATER LAKE TAHOE AREA-MONO-
MINERAL AND SOUTHERN LYON COUNTIES-GREATER RENO-CARSON CITY-
MINDEN AREA-WESTERN NEVADA BASIN AND RANGE INCLUDING PYRAMID LAKE-
NORTHERN WASHOE COUNTY-
622 AM PDT MON JUN 10 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EASTERN SIERRA...
NORTHEAST CALIFORNIA AND WESTERN NEVADA.

.DAY ONE...TODAY AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED ACROSS THE
REGION AGAIN TODAY. WIND GUSTS FROM THE STRONGER STORMS COULD
REACH 50 MPH...WHICH MAY CREATE AREAS OF BLOWING DUST ACROSS THE
DESERTS...AND DANGEROUS BOATING CONDITIONS ON AREA LAKES. LOCALLY
HEAVY RAINFALL AND SMALL HAIL ARE ALSO POSSIBLE WITH THE STORMS.
HIKERS...CAMPERS AND THOSE IN THE BACK COUNTRY SHOULD BE PREPARED
TO SEEK SHELTER FROM THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

BREEZY TO WINDY CONDITIONS WILL BE POSSIBLE FROM TUESDAY INTO THE
WEEKEND AS ANOTHER AREA OF LOW PRESSURE DEVELOPS ALONG THE WEST
COAST.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

O'HARA

FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT...
HTTP://FORECAST.WEATHER.GOV/HAZARDS/REV  (ALL LOWER CASE)

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
1139 AM PDT MON JUN 10 2013

NVZ003-004-101915-
GREATER RENO-CARSON CITY-MINDEN AREA-WESTERN NEVADA BASIN AND RANGE
INCLUDING PYRAMID LAKE-
1139 AM PDT MON JUN 10 2013

...STRONG THUNDERSTORM ON HIGHWAY 477 BETWEEN WADSWORTH AND NIXON...

AT 1135 AM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A STRONG THUNDERSTORM 6 MILES NORTHWEST OF FERNLEY MOVING
NORTHEAST AT 5 MPH.

OCCASIONAL LIGHTNING...MODERATE RAIN...SMALL PEA SIZE HAIL...AND
STRONG GUSTY WINDS TO 50 MPH...WILL OCCUR WITH THIS STORM.

THIS STORM WILL AFFECT TRAVELERS ON HIGHWAY 447 BETWEEN WADSWORTH
AND NIXON. DRIVERS SHOULD EXPECT STRONG GUSTY CROSS WINDS...WITH
RAPID VISIBILITY REDUCTIONS. HEAVY RAINFALL WILL RESULT IN PONDING
OF WATER. SLOW DOWN WHEN ENCOUNTERING HEAVY RAIN AND TURN ON YOUR
HEADLIGHTS.

&&

LAT...LON 3982 11938 3973 11919 3959 11938 3962 11949
TIME...MOT...LOC 1838Z 206DEG 6KT 3967 11934

EKL