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000
FXUS66 KSTO 172308
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
408 PM PDT MON JUN 17 2013

.SYNOPSIS...
NEAR NORMAL TEMPERATURES WITH DRY WEATHER TODAY. A PACIFIC LOW
PRESSURE SYSTEM WILL BRING COOLER TEMPERATURES AND A SLIGHT CHANCE
OF SHOWERS TO NORTHERN SHASTA COUNTY FOR TUESDAY AND WEDNESDAY.
WARMER WEATHER RETURNS LATE IN THE WEEK.

&&

.SHORT TERM DISCUSSION...

UPPER LOW CONTINUES TO SPIN OVER THE EASTERN PACIFIC WEST OF
OREGON/WASHINGTON. THERE IS NOT MUCH MOISTURE WITH THIS
SYSTEM...AS PWATS GENERALLY REMAIN BELOW 1.00 INCHES. WINDS HAVE
INCREASED THROUGH THE DELTA WITH GUSTS TO 35 MPH AT TRAVIS AFB.
THESE WINDS WILL CONTINUE OVERNIGHT AND HELP COOL TEMPERATURES
THIS EVENING.

UPPER LOW WILL MOVE EAST TO THE WASHINGTON/OREGON COAST TOMORROW.
ALTHOUGH...LIMITED WITH MOISTURE A FEW SHOWERS WILL BE POSSIBLE
OVER THE MOUNTAINS OF SHASTA COUNTY AND NRN SIERRA DURING THE
AFTERNOON. GAVE SOME THOUGHT TO INCLUDING THUNDER...BUT
INSTABILITY IS JUST TO LOW. MODERATE ONSHORE FLOW WILL COOL
TEMPERATURES TO BELOW NORMAL LEVELS WITH READINGS IN THE LOW 80`S
AND UPPER 70`S FOR VALLEYS...WHICH ARE 4-8 DEGREES BELOW NORMAL.
WIND GUSTS TO 35 MPH WILL CONTINUE THROUGH THE DELTA.

UPPER LOW WILL SLOWLY SHIFT EAST THROUGH OREGON ON WEDNESDAY
KEEPING THE BEST SHOWER CHANCES NORTH OF THE AREA...STILL SLIGHT
SHOWER CHANCES OVER THE NRN MOUNTAINS OF SHASTA COUNTY.
TEMPERATURES WILL WARM A FEW DEGREES...BUT REMAIN AROUND 5 DEGREES
BELOW NORMAL. LOW WILL MOVE NORTHEAST INTO THE NRN ROCKIES ON
THURSDAY WITH POSSIBLY BREEZY NORTH WINDS ON THE BACKSIDE OF THE
SYSTEM. TEMPERATURES WILL WARM TO NEAR NORMAL READINGS IN THE
UPPER 80`S.

&&

.EXTENDED DISCUSSION (FRIDAY THROUGH MONDAY)

HIGH PRESSURE BUILDS OVER THE AREA THROUGH THE END OF THE WEEK
LEADING TO A RETURN OF ABOVE NORMAL TEMPERATURES FOR INTERIOR
NORCAL. ON FRIDAY, MUCH OF THE VALLEY WILL BE IN THE LOW TO MID
90S. SATURDAY IS EXPECTED TO BE THE HOTTEST DAY WITH SOME VALLEY
SITES APPROACHING THE CENTURY MARK. ANOTHER TROUGH OVER THE
EASTERN PACIFIC WILL CAUSE A COOLING TREND EARLY NEXT WEEK.  JBB

&&

.AVIATION...

VFR CONDITIONS CONTINUE. ONSHORE FLOW THROUGH THE DELTA IS
MODERATE TO STRONG RANGING 12-22 KTS WITH GUSTS UP TO 30 KTS.
VALLEY WINDS GENERALLY 10-15 KTS WITH OCCASIONAL GUSTS 20 TO 25
KTS. STRONGEST WINDS THIS AFTERNOON AND EVENING. GUSTY SOUTHWEST
WINDS UP TO 30 KTS OVER SIERRA RIDGES.  JBB

&&

.STO WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$