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Area Forecast Discussion

FXUS66 KSTO [Sacramento/WFO CA] 100503 AFDSTO 

FXUS66 KSTO 100503
AFDSTO [HEAD]

National Weather Service Sacramento California 9:03pm PST Tue Feb 9 2016 

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
903 PM PST TUE FEB 9 2016 [HEAD]

Synopsis. Dry and mild weather over interior Northern California this week. 

.SYNOPSIS...
DRY AND MILD WEATHER OVER INTERIOR NORCAL THIS WEEK. [DISC]

Discussion. High pressure will remain over the region but will gradually weaken the next couple of days. Temperatures will remain well above normal for this time of year but gradually cool slightly each day. A few records may fall again on Wednesday mainly from around Sacramento southward. 

.DISCUSSION...
HIGH PRESSURE WILL REMAIN OVER THE REGION BUT WILL GRADUALLY
WEAKEN THE NEXT COUPLE OF DAYS. TEMPERATURES WILL REMAIN WELL
ABOVE NORMAL FOR THIS TIME OF YEAR BUT GRADUALLY COOL SLIGHTLY
EACH DAY. A FEW RECORDS MAY FALL AGAIN ON WEDNESDAY MAINLY FROM
AROUND SACRAMENTO SOUTHWARD. [DISC]

Some record highs for Wednesday… Redding Airport 77 set in 2006 Red Bluff… 78 set in 1971 Sacramento… 74 set in 1988 SAC [Sacramento CA] exec… 73 set in 1988 Stockton… 73 set in 1988 Modesto… 75 set in 2006 

SOME RECORD HIGHS FOR WEDNESDAY...
REDDING AIRPORT 77 SET IN 2006
RED BLUFF...... 78 SET IN 1971
SACRAMENTO......74 SET IN 1988
SAC EXEC........73 SET IN 1988
STOCKTON........73 SET IN 1988
MODESTO.........75 SET IN 2006 [DISC]

Areas of late night and early morning fog will likely form in the Central Valley later tonight… mainly from the central Sacramento Valley southward with some pockets of dense fog. High clouds moving through the region tonight will clear by morning to help aid in the formation of fog. Temperatures have been trending cooler with higher dewpoints this evening as well. All of the above suggest some dense fog forming by morning. 

AREAS OF LATE NIGHT AND EARLY MORNING FOG WILL LIKELY
FORM IN THE CENTRAL VALLEY LATER TONIGHT...MAINLY FROM THE CENTRAL
SACRAMENTO VALLEY SOUTHWARD WITH SOME POCKETS OF DENSE FOG. HIGH
CLOUDS MOVING THROUGH THE REGION TONIGHT WILL CLEAR BY MORNING TO
HELP AID IN THE FORMATION OF FOG. TEMPERATURES HAVE BEEN TRENDING
COOLER WITH HIGHER DEWPOINTS THIS EVENING AS WELL. ALL OF THE ABOVE
SUGGEST SOME DENSE FOG FORMING BY MORNING. [DISC]

Extended discussion (Saturday through Tuesday) 

.EXTENDED DISCUSSION (SATURDAY THROUGH TUESDAY) [DISC]

High pressure begins to rebuild over California late Saturday through early next week, bringing continued warm and dry weather. There may be a period of locally breezy north winds Sunday. High pressure then shifts eastward late Monday into Tuesday as a longwave trough approaches the eastern Pacific Ocean. The GFS [Global Forecast System: global spectral model used primarily for aviation weather forecasts; provides guidance out to 384 hours at 00, 06, 12 and 18UTC.] and ECMWF [European Center for Medium-Range Weather Forecasts model] are hinting at a more dynamic frontal system impacting Northern California toward the middle of next week. 

HIGH PRESSURE BEGINS TO REBUILD OVER CALIFORNIA LATE SATURDAY
THROUGH EARLY NEXT WEEK, BRINGING CONTINUED WARM AND DRY WEATHER.
THERE MAY BE A PERIOD OF LOCALLY BREEZY NORTH WINDS SUNDAY. HIGH
PRESSURE THEN SHIFTS EASTWARD LATE MONDAY INTO TUESDAY AS A
LONGWAVE TROUGH APPROACHES THE EASTERN PACIFIC OCEAN. THE GFS AND
ECMWF ARE HINTING AT A MORE DYNAMIC FRONTAL SYSTEM IMPACTING
NORCAL TOWARD THE MIDDLE OF NEXT WEEK. [DISC]

Dang 

DANG [CRED]

Aviation.  

.AVIATION... [AVIA]

Mainly VFR [Visual Flight Rules] conditions the next 24 hours. Patchy ground fog may redevelop Wednesday morning. Light winds <10 kt [12 mph] will continue across valley TAF [Terminal Aerodrome Forecast] sites. 

MAINLY VFR CONDITIONS THE NEXT 24 HOURS. PATCHY GROUND FOG MAY
REDEVELOP WEDNESDAY MORNING. LIGHT WINDS <10 KT WILL CONTINUE
ACROSS VALLEY TAF SITES. [AVI2]

STO [Sacramento/WFO CA] Watches/Warnings/Advisories

  • None. 
.STO WATCHES/WARNINGS/ADVISORIES...
NONE. [WARN]

Point Forecast

Mather CA

09 Feb 10:02pm PST

Tonight Mostly clear, with a low around 33°. ENE wind around 9 mph.
Wednesday Sunny, with a high near 65°. ENE wind 5 to 10 mph becoming light and variable in the afternoon.
Wednesday Night Mostly clear, with a low around 38°. ENE wind around 9 mph.
Thursday Mostly sunny, with a high near 61°. ENE wind 5 to 8 mph becoming light and variable in the morning.
Thursday Night Partly cloudy, with a low around 38°. East wind 3 to 7 mph.
Friday Mostly sunny, with a high near 60°.
Friday Night Partly cloudy, with a low around 35°.
Saturday Mostly sunny, with a high near 57°.
Saturday Night Mostly clear, with a low around 36°.
Sunday Sunny, with a high near 59°.
Sunday Night Mostly clear, with a low around 39°.
Washington's Birthday Sunny, with a high near 64°.
Monday Night Partly cloudy, with a low around 39°.
Tuesday Mostly sunny, with a high near 61°.
Tonight
Mostly clear, with a low around 33. East northeast wind around 9 mph.
Wednesday
Sunny, with a high near 65. East northeast wind 5 to 10 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 38. East northeast wind around 9 mph.
Thursday
Mostly sunny, with a high near 61. East northeast wind 5 to 8 mph becoming light and variable in the morning.
Thursday Night
Partly cloudy, with a low around 38. East wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 39.
Washington's Birthday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 61.

This page is generated dynamically from the National Weather Service's NWS point forecast and Area Forecast Discussion, reformatted for readability. NWS glossary; about point forecasts. For more information, visit the Lobitos Weather Project home page. Comments and corrections are welcome: