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Area forecast discussion 
National Weather Service Sacramento California
928 am PDT Thursday Jul 30 2015

Synopsis...
hot and dry weather again today with a slow cooling trend into
next week. Daytime highs near normal much of next week. A few
isolated mountain thunderstorms today becoming scattered Friday
through Monday as monsoon moisture is pulled northward...otherwise
continued dry.

&&

Discussion...
there is a stronger Delta breeze this morning, with winds at
Travis AFB currently 26 miles per hour sustained. 9 am temperatures were
running 5 to 8 degrees cooler than yesterday. Even Redding is
relatively cooler at 87, compared to 92 yesterday. Mountain and
foothill locations continue to warm, though, as upper level
ridging continues to strengthen. Expect these trends to generally
continue through the day. The main question is whether the
northern Sacramento Valley will be end up being a little hotter
than yesterday, or will be about the same/slightly cooler. Current
model guidance is not clear on this so far. Current forecast high
is for 112, one degree higher than yesterday. Will watch to see
how things trend this morning and will update if necessary.

There is a forecast temperature cooling trend across the area on
Friday, into the weekend and potentially into early next week as
the upper level ridge weakens. Cloud cover will also act to lower
afternoon highs, especially over higher terrain.

Some middle level monsoonal moisture is starting to spread into the
area, but satellite shows the bulk of this remains well to the
south. Could see some isolated showers and thunderstorms
developing over the Sierra south of Highway 50, but low level
moisture remains very limited, so not expecting much in the way of
precipitation. Have decided to add a small area of isolated
showers and thunderstorms this afternoon to the coastal range
around the yolla Bolly and saddle Camp. The rest of the area is
expected to remain dry. More widespread mountain precipitation is
forecast for Friday afternoon and evening, into the weekend. Ek

&&
extended discussion (monday through thursday)

One more day of Sierra thunderstorms possible on Monday as monsoon
moisture lingers across the area. Trough will develop offshore
with deeper moisture likely remaining east of the crest...ending
the chances for any convection by Tuesday. Dry weather should rule
for most of the week as area remains sandwiched between trough to
the west and high pressure to the east. Temperatures will be
within a few degrees of normal for the week as airmass cools and
onshore flow strengthens. Ceo
&&

Aviation...

VFR conditions next 24 hours for taf sites. Possible local visibility
restrictions near current fires due to smoke. Winds generally less
than 10-15 kts for taf sites. Wind gusts of 25-30 kts possible
in vicinity of Delta.
&&

Sto watches/warnings/advisories...
none.
&&

$$

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