Scientific Forecaster Discussion
fxus66 khnx 232117
Area forecast discussion
National Weather Service San Joaquin Valley - Hanford California
217 PM PDT sun Apr 23 2017
Synopsis...dry weather and seasonable temperatures through the
end of next week. Breezy conditions expecting during the second
half of the week.
Discussion...upper level northwest flow ushered in a cooler
airmass last night and today resulting in a cooling trend across
central California. Temperatures this afternoon were generally 5
to 10 degrees cooler compared to yesterday at this time. Daytime
high temperatures are forecast to climb to within a degree or two
of seasonable normals. Breezy conditions were observed across the
Kern County desert and mountains...where gusts to 55 mph will be
possible through this evening. Blowing dust will be
possible...especially in desert locations.
Otherwise...little change to the upper level pattern through the
end of the work week as upper level northwest flow remains firmly
in place. Expect only a degree or two temperature differences each
day through at least Friday.
The main weather story this week will be the breezy conditions
across central California. The Kern County desert and mountains
will be breezy each afternoon and evening through Friday. However
the strongest winds for the entire area will occur Thursday
afternoon and evening and again on Friday afternoon and evening.
These winds will occur in response to surface high pressure
strengthening over the eastern Pacific while surface low pressure
dominates the Desert Southwest. The San Joaquin Valley could see
wind gusts in excess of 30 mph both of these days.
Lastly...there is at least a slight chance of showers over the
Sierra Nevada generally from Fresno County northward Monday
through Wednesday as a series of upper level disturbances moves
south through the northwest flow.
Please continue to monitor the forecast...especially with regards
to winds this week...for the latest information.
VFR skies and vis with breezy conditions will prevail throughout the
central California interior during the next 24 hours.
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.
Certainty levels include low...medium...and high. Please visit
www.Weather.Gov/hnx/certainty.Php for additional information
and/or to provide feedback.
Wind Advisory until 11 PM PDT this evening caz095-098-099.