Sunrise 6:14 AM   Sunset 7:26 PM Moonrise 12:51 PM   Moonset 2:54 AM

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FXUS66 KHNX 161805 AFDHNX

Area Forecast Discussion National Weather Service Hanford CA 1105 AM PDT Tue Apr 16 2024

KEY MESSAGES

1. A significant warming trend is forecast through Thursday.

2. Maximum temperatures are expected to remain fairly steady through the weekend.

2. The warming trend will not cause hydrological concerns due to snowmelt in the Sierra Nevada this week.

DISCUSSION
The upper-level ridge gradually builds today through late this week, and high temperatures are projected to reach near seasonal averages this afternoon. Low clouds over the San Joaquin Valley brought mild morning low temperatures and continued until the late morning hours towards Fresno and Madera but have since cleared. Some cumulus clouds also developed shortly afterward in the east side of the Central Valley towards the Sierra foothills and higher terrain adjacent to the west side of the valley. Thus, some residual moisture remains in the lower levels from the recent low pressure system. Despite the persistent clouds, we are on track to reach highs of at least 75 degrees today in the Central Valley; the probabilities for these temperatures are about 50 to 70 percent.

Mainly clear skies and above average temperatures return by the middle of this week and will last for the next several days.
The probabilities of highs in the lower 80s remain at around 45 to 70 percent for the San Joaquin Valley with similar chances of highs in the mid to upper 80s in the Kern County desert for Thursday and Friday. Over the weekend, temperatures will creep up a little in some locations; otherwise, little change is expected through the weekend into early next week. High temperatures late this week into the weekend will peak at roughly ten degrees above seasonal averages. As the region continues to warm, we will be monitoring for any cumulus cloud buildups over the higher elevations of the Sierra Nevada by later this week, and an isolated afternoon or early evening thunderstorm or two cannot be ruled out. Mainly dry conditions prevail elsewhere until early next week. As for temperatures in the mountains, overnight lows will remain below freezing mainly at elevations above 6,000 feet. Thus, hydrological concerns due to snowmelt will not result in the foreseeable future.


AVIATION
VFR conditions are expected across the Central CA interior for at least the next 24 hours.

AIR QUALITY ISSUES
None.

CERTAINTY

The level of certainty for days 1 and 2 is high.
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
None.

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