Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
FXUS66 KHNX 161128

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
428 AM PDT Wed Aug 16 2017

.SYNOPSIS...A warming trend will begin today and continue into
the weekend. Otherwise...mostly clear skies will prevail. Isolated
showers and thunderstorms will be possible each afternoon and
evening through the weekend across the Sierra Nevada generally
from Kings Canyon northward.


.DISCUSSION...A cool northerly flow continues over the area this
morning as Central CA remains situated in between a trough over
the Great Basin and a building ridge near 140W. Mostly clear
skies are prevailing and overnight temperatures are running close
to Tuesday mornings readings.

WRF indicating the ridge will push inland over the PAC NW and
Norcal resulting in a warming trend across our area each day as
heights and thicknesses slowly rise. Temperatures will rise to
near seasonal normals by Thursday and to above normal levels by
Friday. A light offshore flow will over the Southern Sierra
Nevada which will make conditions a bit more favorable for diurnal
convection as instability and CAPE will be sufficient enough for
isolated thunderstorms each afternoon north of Kings Canyon.

The operational GFS and ECMWF continue to indicate an upper low
closing off near the Socal coast by Sunday, but are trending a
bit further offshore with the low. Temperatures will continue
their upward trend on Satruday then remain status quo through the
middle of next week. Instability over the Southern Sierra Nevada
will allow for chances of mountain showers and isolated
thunderstorms each afternoon while the remainder of our CWFA
remains mostly clear with continued dry conditions.


.AVIATION...VFR conditions will prevail across the central CA
interior during the next 24 hours.





The level of certainty for days 1 and 2 is medium.
The level of certainty for days 3 through 7 is medium.

Certainty levels include low...medium...and high. Please visit for additional information
an/or to provide feedback.


.HNX Watches/Warnings/Advisories...NONE.



synopsis...DS is the U.S. government's official web portal to all federal, state and local government web resources and services.