####018004694####
WWUS76 KSTO 130307

NPWSTO



URGENT - WEATHER MESSAGE

National Weather Service Sacramento CA

807 PM PDT Fri Jun 12 2026



CAZ122-124-129-141-142-146-140015-

/O.CON.KSTO.XH.W.0001.260614T1800Z-260617T0600Z/

/O.CON.KSTO.HT.Y.0002.000000T0000Z-260614T0600Z/

W. Shasta County 1000-3000 ft-Shasta Metro-Sierra (Tehama-Plumas)

1000-3000 ft-W Tehama Co Foothills 1000-3000 ft-N. Sac Valley in

Tehama County-Butte County Below 1000 ft-

Including the cities of Paradise, Redding, Anderson, Red Bluff,

Whiskeytown, Chico, Oroville, and Gridley

807 PM PDT Fri Jun 12 2026



...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SATURDAY...

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM SUNDAY TO 11 PM 

PDT TUESDAY...



* WHAT...For the Heat Advisory, temperatures 100 to 105 with 

  widespread Moderate HeatRisk and areas of Major HeatRisk. For the 

  Extreme Heat Warning, dangerously hot conditions with temperatures 

  up to 110 expected with widespread Major HeatRisk.



* WHERE...Butte County Below 1000 ft, N. Sac Valley in Tehama 

  County, Shasta Metro, Sierra (Tehama-Plumas) 1000-3000 ft, W 

  Tehama Co Foothills 1000-3000 ft, and W. Shasta County 1000-3000 

  ft.



* WHEN...For the Heat Advisory, until 11 PM PDT Saturday. For the 

  Extreme Heat Warning, from 11 AM Sunday to 11 PM PDT Tuesday.



* IMPACTS...Hot temperatures may cause heat illnesses, especially in 

  those more sensitive to heat.



* ADDITIONAL DETAILS...Hot daytime temperatures will occur in other 

  Valley locations as well, though Delta breeze influence will 

  better moderate local temperatures in the remainder of the Valley.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Drink plenty of fluids, stay in an air-conditioned room, stay out of 

the sun, and check up on relatives and neighbors.



Take extra precautions when outside. Wear lightweight and loose 

fitting clothing. Try to limit strenuous activities to early morning 

or evening. Take action when you see symptoms of heat exhaustion and 

heat stroke.



&&



$$



CAZ121-123-125-140-140015-

/O.CON.KSTO.XH.W.0001.260614T1800Z-260617T0600Z/

W. Shasta County Above 3000 ft-Shasta Lake Area & 1-5 1000-

3000 ft-Shasta County Foothills 1000-3000 ft-Tehama Co Coast

Range Above 3000 ft-

Including the cities of Shasta Lake, Sims

807 PM PDT Fri Jun 12 2026



...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM SUNDAY TO 11 PM 

PDT TUESDAY...



* WHAT...Dangerously hot conditions with temperatures up to 110 

  expected and widespread Major HeatRisk.



* WHERE...Shasta County Foothills 1000-3000 ft, Shasta Lake Area & 

  1-5 1000-3000 ft, Tehama Co Coast Range Above 3000 ft, and W. 

  Shasta County Above 3000 ft.



* WHEN...From 11 AM Sunday to 11 PM PDT Tuesday.



* IMPACTS...Heat related illnesses increase significantly during 

  extreme heat events.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Drink plenty of fluids, stay in an air-conditioned room, stay out of 

the sun, and check up on relatives and neighbors.



Take extra precautions when outside. Wear lightweight and loose 

fitting clothing. Try to limit strenuous activities to early morning 

or evening. Take action when you see symptoms of heat exhaustion and 

heat stroke.



&&



$$



CAZ144-145-147>150-140015-

/O.CON.KSTO.HT.Y.0002.000000T0000Z-260614T0600Z/

Central Glenn Co & Interstate 5-Eastern Glenn County-W.

Glenn/Colusa Foothills 1000-3000 ft-Central Colusa County Incl. I-

5-Eastern Colusa County-Sutter/Yuba counties below 1000 ft-

Including the cities of Willows, Orland, Colusa, Williams, Yuba

City, and Beale AFB

807 PM PDT Fri Jun 12 2026



...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SATURDAY...



* WHAT...Temperatures 100 to 105 with widespread Moderate HeatRisk 

  and areas of Major HeatRisk.



* WHERE...Central Colusa County Incl. I-5, Central Glenn Co & 

  Interstate 5, Eastern Colusa County, Eastern Glenn County, 

  Sutter/Yuba counties below 1000 ft, and W. Glenn/Colusa Foothills 

  1000-3000 ft.



* WHEN...Until 11 PM PDT Saturday.



* IMPACTS...Hot temperatures may cause heat illnesses.



* ADDITIONAL DETAILS...Hot daytime temperatures will occur in other 

  Valley locations as well, though Delta breeze influence will 

  better moderate local temperatures in the remainder of the Valley.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Drink plenty of fluids, stay in an air-conditioned room, stay out of 

the sun, and check up on relatives and neighbors.



&&



$$



For more information, visit us at www.weather.gov/sto/



JS