Marine Weather and Tide Forecast for Fresno, CA

KEY MESSAGES

1. Temperatures are expected to warm up again by Friday and will rise back to above normal by the weekend.

2. There is a chance for showers and a slight chance for thunderstorms across the Sierra Nevada today.

3. Breezy conditions are expected for the Mojave Slopes on through this evening.

DISCUSSION
A strong upper level low pressure trough dropping southward through the Great Basin region is producing a northerly flow over our area which has resulted in upslope clouds banked up over the southern and eastern portions of the San Joaquin Valley, the Sierra Foothills and the valley facing slopes of the Tehachapi Mountains with reports of fog being noted in Tehachapi and in the Pine Mountain Club area. The cool northerly flow has also resulted in cooler than normal temperatures across our area today and gusty downslope winds along the Mojave Desert Slopes where gusts between 45 and 50 mph have already been reported today and a Wind Advisory remains in effect until 500 AM PDT Friday. Showers and isolated thunderstorms remain possible over the Sierra NEvada and adjacent foothills through this evening where instability and CAPE are sufficient for some convective development.

Meanwhile, an upper low currently off the Socal coast will move inland across Socal tonight and come into phase with the Great Basin trough on Friday before the trough moves further east on Friday night and Saturday. Some residual showers will be possible on Friday over the Sierra Nevada in Tulare County and across the Kern County mountains and deserts on Friday along with persistent upslope low clouds over the south end and east side of the San Joaquin Valley. An upper ridge will then nudge inland into CA on Saturday behind the departing trough which will result in a period of dry weather and warmer than normal temperatures across our area between Saturday and next Thursday.
The PoE for 80 DEG F in the San Joaquin Valley is 65 to 85 percent on




AVIATION
06Z:

In the San Joaquin Valley and West Side Hills: Areas of MVFR ceilings in low clouds thru 18Z Fri, mainly southeastern portions towards BFL and PTV; otherwise VFR thru 06Z Sat.

In the Sierra Nevada and adjacent foothills, areas of MVFR in low clouds until 18Z Fri; otherwise VFR thru 06Z Sat.

In the Tehachapi Mountains, widespread mountain obscuring IFR in low clouds thru 18Z Fri.

In the Kern County portion of the Mojave Desert, VFR will prevail thru the next 24 hours. Wind gusts above 35 KTS will continue through 12Z Fri.

AIR QUALITY ISSUES
None.

CERTAINTY

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 www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback.

HNX WATCHES/WARNINGS/ADVISORIES
Wind Advisory until 5 AM PDT Friday for CAZ338.