Scientific Forecaster Discussion
Area forecast discussion
National Weather Service San Joaquin Valley - Hanford California
322 am PDT Monday Apr 27 2015
dry weather and above normal afternoon temperatures can be
expected over the central California interior through at
Discussion...the overall weather pattern will be simplistic and
precipitation-free for the next several days as the storm track
remains well north of the County Warning Area. During the next 24 hours...an upper
level ridge of high pressure will build over central California and bring
a significant warmup. Temperatures are already trending several
degrees higher compared to 24 hours ago...especially over the
Sierra. Our warmest day of the next 7 days will be Tuesday when
thermometer readings will likely top the ninety degree mark
throughout much of the sj valley and lower foothills. Maximum temperatures will
trend slightly lower Wednesday and Thursday as the ridge axis
shifts eastward to The Four Corners region.
During midweek...the models forecast a weak upper level trough to
slide into northern California. The trough will settle southwestward and
park itself off the central California coast by Thursday night. Afterward...
the GFS and ecm solutions develop this feature into a closed low and
anchor it offshore Friday through the weekend. Although this
system will be greatly limited on moisture...a difluent flow aloft
combined with weak instability could set off isolated afternoon or
early evening thunderstorms along the Sierra crest beginning
Friday. Slight chance probability of precipitation were sprinkled in along the Sierra
crest accordingly in the 5 to 7 day period. Otherwise...dry weather
will be the rule this week with temperatures remaining above
VFR conditions will prevail for the next 24 hours at all terminals
with mainly light and variable winds.
Air quality issues...
The level of certainty for days 1 and 2 is high.
The level of certainty for days 3 through 7 is high.
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 04-27 98:2004 56:1894 65:1926 36:1955
kfat 04-28 98:2007 50:1906 65:1987 36:1970
kfat 04-29 96:1981 60:1951 65:1992 35:1970
Kbfl 04-27 98:2004 60:1932 67:1965 34:1984
kbfl 04-28 97:2007 54:1906 66:1965 38:1999
kbfl 04-29 100:1981 61:1967 64:2007 40:1984