Scientific Forecaster Discussion
Area forecast discussion
National Weather Service San Joaquin Valley - Hanford California
322 am PST Wednesday Dec 11 2013
clear and cold conditions will continue for the next several days.
Sub-freezing temperatures across the San Joaquin Valley over the
next few late night through morning hours. A gradual warming trend
will result in above normal temperatures next week.
Discussion...24 hour trends show temperatures running a few to
several degrees higher across the central and southern San Joaquin
Valley tonight. This is likely due in part to a batch of clouds
that has moved in...somewhat inhibiting radiation cooling. Satellite
imagery shows clearing from the north and still think a hard freeze
is likely for many areas in the sjv as temperatures drop below 28 degrees
by sunrise. Upper ridging will shift over the West Coast during the
day as an upper low pushes over the Gulf of Alaska. This system is
forecast to reach the pacnw coast by Thursday night with a dry low
possibly splitting off and dropping down off the California coast
through Friday. An epac upper ridge is then expected to expand over
the west this weekend and remain in control through early next week.
After another hard freeze for the sjv Wednesday night...temperatures
will steadily trend upward. Overnight lows are forecast to become
a little above normal by next week while daytime highs climb to
several degrees above normal.
areas of MVFR with local IFR conditions through 18z in the central
and southern San Joaquin Valley. Otherwise...VFR conditions expected
across the central California interior for the next 24 hours.
Air quality issues...
on Wednesday December 11 2013... unhealthy for sensitive groups in
Fresno County. Fireplace/wood stove burning is prohibited in
Fresno... Kern and Kings counties.
Further information is available at valleyair.Org
The level of certainty for days 1 and 2 is high.
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 12-11 69:1933 39:1932 56:1937 25:1972
kfat 12-12 69:1969 40:1932 55:1929 18:1932
kfat 12-13 72:1929 32:1972 54:1929 23:1940
Kbfl 12-11 81:1912 35:1932 58:1937 24:1923
kbfl 12-12 75:1913 43:1932 53:1893 20:1901
kbfl 12-13 79:1998 41:1972 54:1933 20:1901
hard freeze warning until 8 am PST Thursday caz089>092.