FXUS66 KHNX 210607

AFDHNX



Area Forecast Discussion

National Weather Service Hanford CA

1107 PM PDT Sat Jun 20 2026





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.KEY MESSAGES...



1. A warm-up is expected to begin tomorrow and will continue

through next week.



2. Hot and dry conditions next week will create increased fire 

risk across the region.



3. Practice safety around lakes, rivers, and streams, as water 

is still running cold.



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.DISCUSSION...

A warming trend is expected to begin tomorrow as the troughing

pattern over California today transitions into a more zonal

flow. Then a ridge will begin to build to the southeast of the

region and move northwest through the coming week. This will

lead to a return to triple digit temperatures in the Valley, 

the highest of which is expected to be on Wednesday the 24th. 

During this time, afternoon RH's will reduce back down to the 

15-20% range in the Valley and into the single digits in the 

Desert. This combination of heat and dryness will lead to 

increased fire risk throughout the week. This ridge may also be 

just strong enough to pull some monsoonal moisture up to the 

Sierra Nevada, and may lead to scattered thunderstorms on the 

highest peaks by Wednesday and into Thursday.



Looking to late next week, another trough is likely to move down

from the northwest and cross through California by Friday,

causing a slight cooling trend, though temperatures in the

Valley are likely to remain in the mid 90's, around normal for

this time of year. The Climate Prediction Center has also noted

this trend towards climatological normal in the next 1 to 2

weeks as much of the Valley is in the near normal category for

temperatures for the 6 to 10 day outlook, and the 8 to 14 day

outlook has the whole CWA in that same category.



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.AVIATION... 

VFR conditions expected across the area for the next 24 hours. 



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.AIR QUALITY ISSUES...

None.





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.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.



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.HNX WATCHES/WARNINGS/ADVISORIES...

Lake Wind Advisory until midnight PDT tonight for CAZ300.

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EW



weather.gov/hanford