Scientific Forecaster Discussion
Area forecast discussion
National Weather Service San Joaquin Valley - Hanford California
322 am PST Sat Nov 28 2015
a few showers will be possible today mainly over the Sierra Nevada
mountains. Otherwise dry weather will prevail across the central
California interior through the weekend with patchy late night and
morning frost and fog in the San Joaquin Valley. Temperatures
will average slightly below normal through the period.
a few showers developing towards the foothills and Sierra due to
a weak disturbance still exiting the district. This has resulted
in widespread cloud cover across the South Valley and some clearing
towards the north in the Central Valley. The cloud deck will
mitigate the freezing temperatures overnight in the South Valley
with the best threat for frost towards north sectors of the
Another weak disturbance will move through an upper low over
California this afternoon. And could trigger a few showers over
the Sierra. The disturbance will exit the district through Kern
County by this evening. Skies over the San Joaquin Valley are
expected to clear out and allow for radiational cooling to take
place with light winds. Expect temperatures across much of the San
Joaquin Valley to drop below the freezing mark tonight thus
the freeze watch has been upgraded to warning. Patchy fog and
frost will be possible in the San Joaquin Valley the next two
mornings but widespread dense fog is not expected due to the
presence of cold air aloft under a cyclonic flow.
The stationary cold upper low over the district will finally
start moving east Sunday due to an upstream trough moving
underneath the close low through scal. After another cold morning
shortwave ridging will prevail over central California on Monday
resulting in milder daytime temperatures. A shortwave system is
prognosticated to reach the norcal coast Monday morning...but is now
prognosticated to wash out before significant moisture from this system
impacts our area.
The medium range models are coming into better agreement for the
middle portion of next week with upper ridging prevailing over
central California next Tuesday and Wednesday for dry conditions and
seasonable temperatures. Before the next Pacific storm system
pushes through California on Thursday and Friday.
widespread mountain obscuring IFR conditions expected across the
Sierra Nevada range in light snow showers. In addition...areas of
MVFR in mist with local IFR/LIFR in fog in the San Joaquin Valley
between 10z and 19z Saturday. Otherwise...VFR conditions will
prevail elsewhere across the central California interior during the next 24
Air quality issues...
on Saturday November 28 2015... fireplace/wood stove burning
status is: no burning unless registered in Fresno... Madera and
Further information is available at valleyair.Org
The level of certainty for days 1 and 2 is medium.
The level of certainty for days 3 through 7 is medium.
This information is provided as part of a trial project conducted
by the National Weather Service San Joaquin Valley - Hanford.
Certainty levels include low...medium...and high. Please visit
www.Weather.Gov/hnx/certainty.Php /all lower case/ for additional
information and/or to provide feedback.
site date hi_max:year lo_max:year hi_min:year lo_min:year
Kfat 11-28 76:1891 46:1972 52:1966 28:1969
kfat 11-29 76:1947 47:1905 58:1901 26:1975
kfat 11-30 77:1924 44:1972 57:2012 29:1906
Kbfl 11-28 82:1993 46:2000 55:190