Wind Advisory 9, NWS Sacramento, CA

506 
WWUS76 KSTO 032309
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
409 PM PDT FRI MAY 3 2013

CAZ015-016-041115-
/O.CON.KSTO.WI.Y.0009.130504T1500Z-130504T2300Z/
NORTHERN SACRAMENTO VALLEY-CENTRAL SACRAMENTO VALLEY-
INCLUDING THE CITIES OF...REDDING...CHICO
409 PM PDT FRI MAY 3 2013

...WIND ADVISORY REMAINS IN EFFECT FROM 8 AM TO 4 PM PDT
SATURDAY...

* WINDS: NORTH 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING: STRONGEST WINDS BETWEEN 8 AM TO NOON SATURDAY

* LOCATIONS INCLUDE: CHICO...REDDING.

* IMPACTS: DIFFICULT DRIVING CONDITIONS. LOCAL POWER OUTAGES 
  POSSIBLE FROM DOWNED TREE BRANCHES. 

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  HTTP://WWW.WEATHER.GOV/SACRAMENTO/HAZARDS 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 25 MPH OR HIGHER
ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

697 
WWUS76 KSTO 041104
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
404 AM PDT SAT MAY 4 2013

CAZ015-016-042300-
/O.CON.KSTO.WI.Y.0009.130504T1500Z-130504T2300Z/
NORTHERN SACRAMENTO VALLEY-CENTRAL SACRAMENTO VALLEY-
INCLUDING THE CITIES OF...REDDING...CHICO
404 AM PDT SAT MAY 4 2013

...WIND ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 4 PM
PDT THIS AFTERNOON...

* WINDS: NORTH 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING: STRONGEST WINDS BETWEEN 8 AM TO NOON TODAY

* LOCATIONS INCLUDE: CHICO...REDDING.

* IMPACTS: DIFFICULT DRIVING CONDITIONS. LOCAL POWER OUTAGES 
  POSSIBLE FROM DOWNED TREE BRANCHES. 

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  HTTP://WWW.WEATHER.GOV/SACRAMENTO/HAZARDS 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 25 MPH OR HIGHER
ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

766 
WWUS76 KSTO 042150
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
250 PM PDT SAT MAY 4 2013

CAZ015-016-050100-
/O.EXT.KSTO.WI.Y.0009.000000T0000Z-130505T0100Z/
NORTHERN SACRAMENTO VALLEY-CENTRAL SACRAMENTO VALLEY-
INCLUDING THE CITIES OF...REDDING...CHICO
250 PM PDT SAT MAY 4 2013

...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM PDT THIS EVENING...

* WINDS: NORTH 15 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING: STRONGEST WINDS BETWEEN NORTH OF CHICO

* LOCATIONS INCLUDE: RED BLUFF...REDDING.

* IMPACTS: DIFFICULT DRIVING CONDITIONS. LOCAL POWER OUTAGES 
  POSSIBLE FROM DOWNED TREE BRANCHES. 

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  HTTP://WWW.WEATHER.GOV/SACRAMENTO/HAZARDS 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 25 MPH OR HIGHER
AND OR GUSTS 40 MPH OR MORE ARE EXPECTED. WINDS THIS STRONG CAN
MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES.
USE EXTRA CAUTION.

&&

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

RB

063 
WWUS76 KSTO 050104
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
604 PM PDT SAT MAY 4 2013

CAZ015-016-050215-
/O.EXP.KSTO.WI.Y.0009.000000T0000Z-130505T0100Z/
NORTHERN SACRAMENTO VALLEY-CENTRAL SACRAMENTO VALLEY-
INCLUDING THE CITIES OF...REDDING...CHICO
604 PM PDT SAT MAY 4 2013

...WIND ADVISORY HAS EXPIRED...

THE WINDS HAVE DIMINISHED BELOW ADVISORY LEVELS...BUT A FEW GUSTS
TO 30 MPH WILL BE POSSIBLE THROUGH THE EVENING.

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWS.SACRAMENTO
WWW.TWITTER.COM/NWSSACRAMENTO

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
951 AM PDT FRI MAY 3 2013

.SHORT TERM DISCUSSION...

WARM HIGH PRESSURE ALOFT WILL CONTINUE TO BRING ABOVE NORMAL
TEMPERATURES AND CLEAR SKIES TODAY...WHICH WILL BE SIMILAR TO
YESTERDAY GIVEN LITTLE CHANGE IN THE OVERALL AIRMASS. LIGHT NORTH
WINDS TODAY WILL START TO INCREASE SOME LATER THIS
AFTERNOON...BEFORE INCREASING FURTHER OVERNIGHT TONIGHT INTO
SATURDAY OVER THE MOUNTAINS AND SAC VALLEY. THE INCREASE IN WINDS
ARE A RESULT OF THE DEEPENING LOW PRESSURE ALONG THE GREAT BASIN
THAT WILL BEGIN RETROGRADING WESTWARD TOWARD NORTHERN CALIFORNIA.
THE PEAK OF THESE BREEZY NORTH WINDS WILL BE IN THE EARLY TO MID
MORNING HOURS ON SATURDAY WITH A STRONG NORTH AND EAST SURFACE
PRESSURE GRADIENT SET UP. THESE DRY WINDS COMBINED WITH DRY FUELS
AND POOR HUMIDITY RECOVERIES OVERNIGHT HAVE WARRANTED A RED FLAG
WARNING FROM MIDNIGHT TONIGHT THROUGH 4 PM SATURDAY OVER THE NRN
AND CNTRL SAC VALLEY...NRN MOUNTAINS...AND COASTAL RANGE BELOW
3000 FT.

MODELS HAVE GOOD AGREEMENT THAT THE AFOREMENTIONED LOW WILL
CONTINUE PROPAGATING WESTWARD SATURDAY WHICH WILL DECREASE THE
NORTHERLY SURFACE PRESSURE GRADIENT AND THEREFORE REDUCE THE
NORTHERLY WIND FLOW OVER THE AREA. THE LOW WILL ALSO BRING ENOUGH
INSTABILITY FOR A THREAT OF THUNDERSTORMS OVER THE
SIERRA...COASTAL...AND CASCADE RANGE SATURDAY AFTERNOON.
INITIALLY THE LIFT AND INSTABILITY APPEAR ISOLATED TO THIS AREA
AND LIMITED MOISTURE SHOULD KEEP THE THUNDERSTORM ACTIVITY ISOLATED.
THE UPPER LOW IS FORECAST TO MOVE OFFSHORE ON SATURDAY NIGHT
PULLING THE SHOWER AND THUNDERSTORM THREAT WESTWARD AND
POTENTIALLY INTO THE VALLEY GIVEN THE ELEVATED INSTABILITY. MOST MOUNTAIN
AREAS WILL SEE A THREAT OF THUNDERSTORMS ON SUNDAY WITH COOLER
TEMPERATURES BOTH WEEKEND DAYS AS COOLER AIR IS USHERED INTO THE
AREA. AS THE LOW REMAINS OFFSHORE ON MONDAY...MORE MOISTURE WILL
BE PULLED NORTHWARD INTO THE AREA AS UPPER LEVEL SOUTHERLY FLOW
BECOMES ESTABLISHED. MOUNTAIN AREAS WILL SEE AN INCREASE IN
THUNDERSTORM THREAT ON MONDAY WITH THE VALLEY ALSO SEEING A SLIGHT
CHANCE OF SHOWERS OR THUNDERSTORMS. THE LOW WILL BRING STILL
COOLER TEMPERATURES ON MONDAY WITH DAYTIME HIGHS UNDER THE COOLER
AIRMASS AND MOSTLY CLOUDY SKIES DROPPING TO SEVERAL DEGREES BELOW
NORMAL. SHEN/SMITH

.EXTENDED DISCUSSION (TUESDAY THROUGH FRIDAY)

AS THE UPPER LOW GRADUALLY WEAKENS/FILLS...IT SHOULD FINALLY PICK
UP SOME MOMENTUM AND TREK EASTWARD BACK INTO CALIFORNIA. THE GFS/
ECMWF CONSENSUS IS NOW FOR THE SYSTEM TO MOVE INLAND EARLY
TUESDAY...THEN INTO THE SOUTHERN NEVADA AND UTAH BY LATE TUESDAY.
WRAPAROUND MOISTURE AND LINGERING INSTABILITY WARRANT AT LEAST A
SLIGHT CHANCE MENTION OF THUNDERSTORMS THROUGH AT LEAST NEXT
THURSDAY MAINLY OVER THE MOUNTAINS. AS THE SYSTEM MOVES
EASTWARD...A MODEST WARMING TREND IS IN STORE FOR LATE NEXT WEEK
AS HIGH PRESSURE BUILDS INTO CALIFORNIA. DANG

&&

.AVIATION...

MAINLY VFR CONDITIONS THE NEXT 24 HOURS...EXCEPT LOCAL MVFR/IFR
IN SMOKE NEAR THE FIRES IN EASTERN TEHAMA COUNTY. NEAR KSAC-
KSCK... GENERALLY LIGHT WINDS UNDER 10 KTS EXPECTED. NEAR KRDD-
KRBL...NORTH WINDS UP TO 10 KT TODAY WILL INCREASE TO 10-20 KT
BY 12Z SATURDAY. -DVC

&&

.STO WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING FROM MIDNIGHT TONIGHT TO 4 PM PDT SATURDAY
BELOW 3000 FEET FOR THE CLEAR LAKE/SOUTHERN LAKE COUNTY...
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY...
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY...SHASTA LAKE AREA /
NORTHERN SHASTA COUNTY.

RED FLAG WARNING FROM MIDNIGHT TONIGHT TO 4 PM PDT SATURDAY
CENTRAL SACRAMENTO VALLEY...NORTHERN SACRAMENTO VALLEY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SACRAMENTO CA
700 AM PDT FRI MAY 3 2013

CAZ013>019-063-064-066>069-041400-
SHASTA LAKE AREA/NORTHERN SHASTA COUNTY-
BURNEY BASIN/EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY-
CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY-
CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY-
MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES-
CLEAR LAKE/SOUTHERN LAKE COUNTY-MOTHERLODE-
EAST FOOTHILLS/NORTH SACRAMENTO VALLEY-
WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA NEVADA-
700 AM PDT FRI MAY 3 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA.

.DAY ONE...TODAY

STRONG NORTHERLY WINDS AND LOW HUMIDITY RECOVERY TONIGHT WILL MAKE
FOR CRITICAL FIRE CONDITIONS.

* RED FLAG WARNING...........SEE WWUS86 KSTO - RFWSTO FOR DETAILS *

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

BREEZY NORTH WINDS AND LOW HUMIDITY WILL CONTINUE INTO SATURDAY FOR
CRITICAL FIRE WEATHER CONDITIONS. WINDS WILL DECREASE SATURDAY
AFTERNOON. A CHANCE OF THUNDERSTORMS WILL EXIST OVER THE SIERRA
CASCADE RANGE ON SATURDAY THEN OVER ALL MOUNTAIN REGIONS SUNDAY.
MOST LOCATIONS WILL SEE A THUNDERSTORM THREAT MONDAY THROUGH MID
WEEK. THE MOUNTAIN AREAS WILL SEE A THREAT OF THUNDERSTORMS
THURSDAY.

* RED FLAG WARNING...........SEE WWUS86 KSTO - RFWSTO FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

THE LATEST WEATHER INFORMATION IS AVAILABLE ON THE INTERNET AT
(LOWER CASE): HTTP://WWW.WRH.NOAA.GOV/STO