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Area Forecast Discussion

FXUS66 KSTO [Sacramento/WFO CA] 212212 AFDSTO 

FXUS66 KSTO 212212
AFDSTO [HEAD]

National Weather Service Sacramento California 2:12pm PST Mon Jan 21 2019 

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
212 PM PST MON JAN 21 2019 [HEAD]

Synopsis. Dry weather with locally breezy northerly winds expected through the week. 

.SYNOPSIS...
DRY WEATHER WITH LOCALLY BREEZY NORTHERLY WINDS EXPECTED THROUGH
THE WEEK. [DISC]

Discussion. Upper high will continue to build over Northern California early this week with dry and warmer weather. Tightening pressure gradient between yesterday's departing storm and the building high pressure will lead to some increase in north wind overnight with a few gusts 15–20 mph. This will prevent fog formation tonight and Tuesday morning. Winds will diminish Tuesday night/Wednesday morning with a better chances of fog formation during this time-frame. 

.DISCUSSION...
UPPER HIGH WILL CONTINUE TO BUILD OVER NORCAL EARLY THIS WEEK WITH
DRY AND WARMER WEATHER. TIGHTENING PRESSURE GRADIENT BETWEEN
YESTERDAY`S DEPARTING STORM AND THE BUILDING HIGH PRESSURE WILL
LEAD TO SOME INCREASE IN NORTH WIND OVERNIGHT WITH A FEW GUSTS 15-20
MPH. THIS WILL PREVENT FOG FORMATION TONIGHT AND TUESDAY MORNING.
WINDS WILL DIMINISH TUESDAY NIGHT/WEDNESDAY MORNING WITH A BETTER
CHANCES OF FOG FORMATION DURING THIS TIME-FRAME. [DISC]

Extended discussion (Friday through Monday) 

.EXTENDED DISCUSSION (FRIDAY THROUGH MONDAY) [DISC]

Quiet weather is expected for the extended part of the forecast due to an amplified ridge across the eastern Pacific setting up shop. Mostly clear skies may lead to early morning fog most mornings, which will then be followed by warmer than normal high temperatures each day. Forecast highs for the valley each day will be in the 60s, with the upper 40s and low 50s being seen at higher elevations. Low temperatures will generally be around climatological values. 

QUIET WEATHER IS EXPECTED FOR THE EXTENDED PART OF THE FORECAST
DUE TO AN AMPLIFIED RIDGE ACROSS THE EASTERN PACIFIC SETTING UP
SHOP. MOSTLY CLEAR SKIES MAY LEAD TO EARLY MORNING FOG MOST
MORNINGS, WHICH WILL THEN BE FOLLOWED BY WARMER THAN NORMAL HIGH
TEMPERATURES EACH DAY. FORECAST HIGHS FOR THE VALLEY EACH DAY WILL
BE IN THE 60S, WITH THE UPPER 40S AND LOW 50S BEING SEEN AT
HIGHER ELEVATIONS. LOW TEMPERATURES WILL GENERALLY BE AROUND
CLIMATOLOGICAL VALUES. [DISC]

Aviation. VFR [Visual Flight Rules] conditions are expected through the period as high pressure will build over the region. 

.AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH THE PERIOD AS HIGH PRESSURE
WILL BUILD OVER THE REGION. [AVIA]

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

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

Point Forecast

Mather CA

21 Jan 1:45pm PST

M.L.King Day Sunny, with a high near 55°. NNW wind around 7 mph.
Tonight Mostly clear, with a low around 36°. NNW wind 7 to 9 mph.
Tuesday Sunny, with a high near 56°. North wind 5 to 7 mph.
Tuesday Night Areas of fog after 10pm. Otherwise, mostly clear, with a low around 35°. Light ESE wind.
Wednesday Areas of fog before 10am. Otherwise, sunny, with a high near 59°. Calm wind.
Wednesday Night Mostly clear, with a low around 38°.
Thursday Sunny, with a high near 62°.
Thursday Night Clear, with a low around 38°.
Friday Sunny, with a high near 64°.
Friday Night Clear, with a low around 40°.
Saturday Sunny, with a high near 65°.
Saturday Night Mostly clear, with a low around 41°.
Sunday Sunny, with a high near 66°.
M.L.King Day
Sunny, with a high near 55. North northwest wind around 7 mph.
Tonight
Mostly clear, with a low around 36. North northwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 56. North wind 5 to 7 mph.
Tuesday Night
Areas of fog after 10pm. Otherwise, mostly clear, with a low around 35. Light east southeast wind.
Wednesday
Areas of fog before 10am. Otherwise, sunny, with a high near 59. Calm wind.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 62.
Thursday Night
Clear, with a low around 38.
Friday
Sunny, with a high near 64.
Friday Night
Clear, with a low around 40.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 66.

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: