Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Sacramento California
1007 PM PDT sun Aug 31 2014
dry and warm weather to continue through at least mid-week. Near
to below normal daytime highs expected Wednesday through Saturday.
clear and dry over norcal this evening as upper high centered west
of San Diego controls the weather. Weak Delta breeze this evening
with temperatures similar to 24 hours ago. Forecast is on track
and no evening update will be needed.
a ridge of high pressure will strengthen over the region the next
24 hours or so. Light northerly flow in the valley today is helping
warm temperatures back up to near yesterdays highs. No Delta
cooling influence during the day is expected with only weak flow
from the Bay through the Delta returning overnight. The ridge will
strengthen overnight warming temperatures a few degrees over
todays highs. Monday still looks like it will be the warmest day
this week with highs 95 to around 103 in the Central Valley. The
warmer temperatures will be over the north end of the valley.
By Tuesday the flow within the valley will reverse direction
becoming up-valley and we should start to see some better stratus
developing along the coast. This will lead to temperatures a few
degrees cooler on Tuesday over monday's highs.
A trough will gradually deepen over the West Coast from the middle
of the week into next weekend. No precipitation is expected but some
synoptic cooling along with better Delta influences is expected late
in the week that could lower daytime highs below seasonal normals.
Extended discussion (thursday through sunday)
Increasing troughing aloft with lowering heights into Thursday
will bring minor cooling. Models diverge Friday with potential
development of a closed upper low and amount of upper troughing
over the weekend. For now will keep the forecast dry with near to
slightly above normal temperatures.
Nwly flow Alf with VFR conds ovr intr norcal nxt 24 hrs.