Alert archive / California / Excessive Heat Warnings in 2021
Excessive Heat Warning 4, NWS Sacramento, CA
NWS Sacramento, CA issued this excessive heat warning at Jul 7, 2021, 2:27 PM PDT. It took effect at Jul 9, 2021, 12:00 PM PDT. It was in force for 3 days. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 7, 2021, 2:27 PM PDT (21:27 UTC)
- In effect from
- Jul 9, 2021, 12:00 PM PDT
- Expired
- Jul 12, 2021, 6:52 PM PDT
- In force
- 3 days
- Issued by
- NWS Sacramento, CA
The text
As transmitted.
718 WWUS76 KSTO 072127 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 227 PM PDT Wed Jul 7 2021 ...Dangerously hot conditions to return to central and northern California... .High pressure will strengthen over California later this week and through the weekend, resulting in widespread triple digit heat combined with warm overnight lows. This combination will lead to a period of high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. Consequently, an Excessive Heat Warning is in now in effect Friday through Monday evening. CAZ013>019-063-066>069-081500- /O.UPG.KSTO.EH.A.0004.210709T1800Z-210713T0400Z/ /O.NEW.KSTO.EH.W.0004.210709T1900Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 227 PM PDT Wed Jul 7 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 9 PM PDT MONDAY... * WHAT...Dangerously hot conditions. Valley and foothill afternoon highs 100 to 115 degrees, lows upper 60s to low 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...From noon Friday to 9 PM PDT next week Monday. * IMPACTS...High to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur on Saturday and Sunday. The potential for minor relief from the heat will arrive to the Delta and possibly Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
16 follow-up statements
174 WWUS76 KSTO 081412 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 712 AM PDT Thu Jul 8 2021 ...ANOTHER WIDESPREAD, DANGEROUS HEATWAVE TO IMPACT CENTRAL AND NORTHERN CALIFORNIA... .High pressure will strengthen over California later this week and through the weekend, resulting in widespread triple digit heat combined with warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. Consequently, an Excessive Heat Warning is in effect Friday through Monday evening. CAZ013>019-063-066>069-090000- /O.CON.KSTO.EH.W.0004.210709T1900Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 712 AM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 115 degrees, lows upper 60s to low 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...From 12 PM / Noon Friday to 9 PM PDT next week Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur on Saturday and Sunday with many Valley communities approaching and/or exceeding 110 degrees. The potential for minor relief from the heat will arrive to the Delta and possibly Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
874 WWUS76 KSTO 082115 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 215 PM PDT Thu Jul 8 2021 ...ANOTHER WIDESPREAD, DANGEROUS HEATWAVE TO IMPACT CENTRAL AND NORTHERN CALIFORNIA... .High pressure will strengthen over California later this week and through the weekend, resulting in widespread triple digit heat combined with warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. Consequently, an Excessive Heat Warning is in effect Friday through Monday evening. CAZ013>019-063-066>069-091500- /O.CON.KSTO.EH.W.0004.210709T1900Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 215 PM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 115 degrees, lows upper 60s to low 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...From 12 PM / Noon Friday to 9 PM PDT next week Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur on Saturday and Sunday with many Valley communities approaching and/or exceeding 110 degrees, locally as hot as 115 degrees. The potential for minor relief from the heat will arrive to the Delta and possibly Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
335 WWUS76 KSTO 091034 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 334 AM PDT Fri Jul 9 2021 ...ANOTHER WIDESPREAD, DANGEROUS HEATWAVE TO IMPACT CENTRAL AND NORTHERN CALIFORNIA... .High pressure will strengthen over California through the weekend resulting in widespread triple digit heat and very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. Consequently, an Excessive Heat Warning is in effect from noon today through Monday evening. CAZ013>019-063-066>069-100000- /O.CON.KSTO.EH.W.0004.210709T1900Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 334 AM PDT Fri Jul 9 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 115 degrees, lows upper 60s to low 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...From 12 Noon Friday to 9 PM PDT next week Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur on Saturday and Sunday with many Valley communities approaching and/or exceeding 110 degrees, locally as hot as 115 degrees. The potential for minor relief from the heat will arrive to the Delta and possibly Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
241 WWUS76 KSTO 091722 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 1022 AM PDT Fri Jul 9 2021 ...WIDESPREAD, DANGEROUS HEATWAVE BEGINS TODAY... .High pressure will strengthen over California through the weekend resulting in widespread excessively hot afternoons and very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect from noon today through Monday evening. CAZ013>019-063-066>069-100130- /O.CON.KSTO.EH.W.0004.210709T1900Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 1022 AM PDT Fri Jul 9 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 116 degrees, locally hotter; lows upper 60s to middle 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...From 12 Noon Friday to 9 PM PDT next week Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur on Saturday and Sunday with many Valley communities exceeding 110 degrees. Parts of the northern Sacramento Valley will approach 116 degrees, locally hotter. Minor relief from the heat will arrive to the Delta and Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
255 WWUS76 KSTO 092147 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 247 PM PDT Fri Jul 9 2021 ...WIDESPREAD, DANGEROUS HEATWAVE BEGINS TODAY... .High pressure will strengthen over California through the weekend resulting in widespread excessively hot afternoons and very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect through Monday evening. CAZ013>019-063-066>069-101200- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 247 PM PDT Fri Jul 9 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 116 degrees, locally hotter; lows upper 60s to middle 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur on Saturday and Sunday with many Valley communities exceeding 110 degrees. Parts of the northern Sacramento Valley will approach 116 degrees, locally hotter. Minor relief from the heat will arrive to the Delta and Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
325 WWUS76 KSTO 100845 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 145 AM PDT Sat Jul 10 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THIS WEEKEND INTO MONDAY... .High pressure will strengthen over California through the weekend resulting in widespread excessively hot afternoons and very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect through Monday evening. CAZ013>019-063-066>069-110000- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Carquinez Strait and Delta-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Fairfield/Suisun, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 145 AM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 116 degrees, locally hotter; lows upper 60s to middle 80s. Mountain highs 80s to 105 degrees, lows 60s to middle 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur today and Sunday with many Valley communities exceeding 110 degrees. Parts of the northern Sacramento Valley will approach 116 degrees, locally hotter. Minor relief from the heat will arrive to the Delta and Sacramento Metro Area as early as Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
291 WWUS76 KSTO 102033 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 133 PM PDT Sat Jul 10 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THIS WEEKEND INTO MONDAY... .Strong high pressure over California through the weekend resulting in widespread excessively hot afternoons and very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect. CAZ018-110400- /O.EXT.KSTO.EH.W.0004.000000T0000Z-210711T0400Z/ Carquinez Strait and Delta- Including the city of Fairfield/Suisun 133 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions with highs 100 to 110 degrees. * WHERE...Carquinez Strait and Delta. * WHEN...Until 9 PM PDT tonight. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures for this heat wave are forecast to be behind the Delta after today. Relief from the heat will arrive tonight in the Delta and help to bring cooler temperatures on Sunday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && Interact with us via social media www.facebook.com/nws.sacramento www.twitter.com/nwssacramento $$ CAZ013>017-019-063-066>069-111200- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Southern Sacramento Valley- Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Sacramento, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 133 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 115 degrees; lows upper 60s to middle 80s. Mountain highs 80s to 105 degrees, lows 60s to upper 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. * ADDITIONAL DETAILS...Hottest temperatures are forecast to occur today and Sunday with many Valley communities approaching 110 degrees. Parts of the northern Sacramento Valley will approach 115 degrees. Relief from the heat will arrive to the Delta tonight and Sacramento Metro Area by Monday. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
776 WWUS76 KSTO 110354 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 854 PM PDT Sat Jul 10 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THIS WEEKEND INTO MONDAY... .Strong high pressure over California through the weekend resulting in widespread excessively hot afternoons and very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect. CAZ018-110500- /O.EXP.KSTO.EH.W.0004.000000T0000Z-210711T0400Z/ Carquinez Strait and Delta- Including the city of Fairfield/Suisun 854 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING... $$ CAZ017-111400- /O.EXT.KSTO.EH.W.0004.000000T0000Z-210712T0400Z/ Southern Sacramento Valley- Including the city of Sacramento 854 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM PDT SUNDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 113 degrees; lows upper 60s to upper 70s. * WHERE...Southern Sacramento Valley, including the Sacramento Metro Area. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ CAZ013>016-019-063-066>069-111400- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 854 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 100 to 115 degrees, lows upper 60s to middle 80s. Mountain highs 80s to 105 degrees, lows 60s to upper 70s. * WHERE...Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
778 WWUS76 KSTO 110910 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 210 AM PDT Sun Jul 11 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THROUGH MONDAY... .Strong high pressure over California continues into early this week and will result in widespread excessively hot afternoons with very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect. CAZ013>016-019-063-066>069-120000- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 210 AM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 102 to 115 degrees, lows upper 60s to middle 80s. Mountain highs 80s to 105 degrees, lows 60s to upper 70s. * WHERE...Portions of the Sacramento Valley, northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ CAZ017-120000- /O.CON.KSTO.EH.W.0004.000000T0000Z-210712T0400Z/ Southern Sacramento Valley- Including the city of Sacramento 210 AM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 102 to 112 degrees. * WHERE...Southern Sacramento Valley, including the Sacramento Metro Area. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
046 WWUS76 KSTO 111900 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 1200 PM PDT Sun Jul 11 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THROUGH MONDAY... .Strong high pressure over California continues into early this week and will result in widespread excessively hot afternoons with very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect. CAZ013>016-019-063-066>069-120300- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 1200 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 102 to 115 degrees, lows upper 60s to lower 80s. Mountain highs 80s to 105 degrees, lows 60s to upper 70s. * WHERE...Central and Northern Sacramento Valley and Portions of the Northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 5,500 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && Interact with us via social media www.facebook.com/nws.sacramento www.twitter.com/nwssacramento $$ CAZ017-120300- /O.CON.KSTO.EH.W.0004.000000T0000Z-210712T0400Z/ Southern Sacramento Valley- Including the city of Sacramento 1200 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions. Afternoon highs 102 to 110 degrees. * WHERE...Southern Sacramento Valley, including the Sacramento Metro Area. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
885 WWUS76 KSTO 112114 NPWSTO URGENT - WEATHER MESSAGE...RESENT National Weather Service Sacramento CA 214 PM PDT Sun Jul 11 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THROUGH MONDAY... .Strong high pressure over California continues into early this week and will result in widespread excessively hot afternoons with very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect. CAZ013>016-019-063-066>069-120300- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 214 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 102 to 115 degrees, lows upper 60s to lower 80s. Mountain highs 80s to 105 degrees, lows 60s to upper 70s. * WHERE...Central and Northern Sacramento Valley and Portions of the Northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 5,500 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && Interact with us via social media www.facebook.com/nws.sacramento www.twitter.com/nwssacramento $$ CAZ017-120300- /O.CON.KSTO.EH.W.0004.000000T0000Z-210712T0400Z/ Southern Sacramento Valley- Including the city of Sacramento 214 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions. Afternoon highs 102 to 110 degrees. * WHERE...Southern Sacramento Valley, including the Sacramento Metro Area. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
169 WWUS76 KSTO 120233 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 733 PM PDT Sun Jul 11 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THROUGH MONDAY... .Strong high pressure over California continues into early this week and will result in widespread excessively hot afternoons with very warm overnight lows. This combination will lead to a period of widespread high to very high heat risk in the Sacramento Valley and adjacent foothills/mountains. An Excessive Heat Warning is in effect. CAZ013>016-019-063-066>069-121045- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 733 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 102 to 115 degrees, lows upper 60s to lower 80s. Mountain highs 80s to 105 degrees, lows 60s to upper 70s. * WHERE...Central and Northern Sacramento Valley and Portions of the Northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 5,500 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ CAZ017-120400- /O.CON.KSTO.EH.W.0004.000000T0000Z-210712T0400Z/ Southern Sacramento Valley- Including the city of Sacramento 733 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions. Afternoon highs 102 to 110 degrees. * WHERE...Southern Sacramento Valley, including the Sacramento Metro Area. * WHEN...Until 9 PM PDT this evening. * IMPACTS...Widespread high to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
991 WWUS76 KSTO 120350 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 850 PM PDT Sun Jul 11 2021 ...WIDESPREAD, DANGEROUS HEATWAVE THROUGH MONDAY... .Strong high pressure over California will continue to bring excessively hot conditions along with very warm overnight lows. This combination will bring high to very high heat risk to portions of the northern San Joaquin Valley, northern and central Sacramento Valley, and adjacent foothills. CAZ017-120500- /O.EXP.KSTO.EH.W.0004.000000T0000Z-210712T0400Z/ Southern Sacramento Valley- Including the city of Sacramento 850 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING... $$ CAZ013>016-019-063-066>069-121500- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 850 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT MONDAY... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs 102 to 111 degrees, lows upper 60s to lower 80s. Mountain highs 80s to 102 degrees, lows 60s to upper 70s. * WHERE...Central and Northern Sacramento Valley and Portions of the Northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 5,500 ft elevation. * WHEN...Until 9 PM PDT Monday. * IMPACTS...High to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
457 WWUS76 KSTO 120930 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 230 AM PDT Mon Jul 12 2021 CAZ013>016-019-063-066>069-122300- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 230 AM PDT Mon Jul 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs from 102 to 112 degrees. Mountain highs in the 90s to 105 degrees. * WHERE...Central and Northern Sacramento Valley and Portions of the Northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 5,500 ft elevation. * WHEN...Until 9 PM PDT this evening. * IMPACTS...High to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
043 WWUS76 KSTO 122131 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 231 PM PDT Mon Jul 12 2021 CAZ013>016-019-063-066>069-130400- /O.CON.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 231 PM PDT Mon Jul 12 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * WHAT...Widespread, dangerously hot conditions. Valley and foothill afternoon highs from 100 to 110 degrees. Mountain highs in the 90s to 105 degrees. * WHERE...Central and Northern Sacramento Valley and Portions of the Northern San Joaquin Valley, adjacent foothills, and mountains up to approximately 6,000 ft elevation. * WHEN...Until 9 PM PDT this evening. * IMPACTS...High to very high heat risk. Extreme heat will significantly increase the potential for heat-related illnesses. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
486 WWUS76 KSTO 130152 NPWSTO URGENT - WEATHER MESSAGE National Weather Service Sacramento CA 652 PM PDT Mon Jul 12 2021 CAZ013>016-019-063-066>069-130300- /O.CAN.KSTO.EH.W.0004.000000T0000Z-210713T0400Z/ Shasta Lake Area / Northern Shasta County- Burney Basin / Eastern Shasta County-Northern Sacramento Valley- Central Sacramento Valley-Northern San Joaquin Valley- Mountains Southwestern Shasta County to Western Colusa County- Northeast Foothills/Sacramento Valley-Motherlode- Western Plumas County/Lassen Park- West Slope Northern Sierra Nevada- Including the cities of Shasta Dam, Burney, Redding, Red Bluff, Chico, Oroville, Marysville/Yuba City, Stockton, Modesto, Alder Springs, Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon 652 PM PDT Mon Jul 12 2021 ...EXCESSIVE HEAT WARNING IS CANCELLED... Temperatures are cooling down this evening and there will be enough cooling at night to allow the Excessive Heat Warning to expire. $$
What forecasters said that day
The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sacramento, CA wrote its last area forecast discussion before this excessive heat warning went out at Jul 7, 3:10 AM PDT, 11 hours 17 minutes earlier.
Area forecast discussion, Jul 7, 3:10 AM PDT, 11 hours 17 minutes before
Area Forecast Discussion National Weather Service Sacramento CA 310 AM PDT Wed Jul 7 2021 .SYNOPSIS... Dry conditions are forecast to continue with very hot temperatures expected by the end of the week continuing into early next week. An Excessive Heat Watch is in effect for much of interior NorCal Friday afternoon through Monday evening when the hottest weather is expected. && .DISCUSSION... Clear skies cover the region early this morning. Onshore surface pressure gradients remain about the same as 24 hours ago, but the marine layer is a bit more shallow. That combined with wider temp/ dew point spreads across the southern Sacramento Valley make it unlikely that we'll see a repeat of stratus extending inland again this morning. Temperatures will warm a bit across the region today as the low moves by to the north through the PacNW and modified marine influence begins to wane inland. Beginning Thursday, ensembles continue to indicate high confidence in the Southwest high strengthening and building westward into NorCal bringing another heatwave that will last through the weekend into next week. This will lead to a warming trend as subsidence increases and marine influence further wanes. Triple digit heat will expand across the lower elevations with milder overnight low temperatures resulting in widespread high to very high heat risk by Friday. Ensembles indicate that surface thermal trough is likely to remain over the Central Valley, or to the east, through the weekend which would allow for a trickle of onshore flow into much of the valley likely taking the worst case temperature scenarios off the table for those areas. Nevertheless, the north end of the Sacramento Valley will likely see very hot temperatures again over the weekend with highs in the 110-115 degree range approaching daily records for Redding and Red Bluff. It still appears that some elevated moisture/instability will work its way into NorCal later Thursday into Friday, but deep convection will likely be capped by warmer mid-level temps associated with the building ridge. && .EXTENDED DISCUSSION (Sunday THROUGH Wednesday)... Desert SW upper high continues to be the main synoptic feature influencing weather over interior NorCal through the extended forecast period. This will result in dry conditions with well above normal daytime temperatures. Widespread triple digit highs forecast throughout the Central Valley Sunday with potential record heat. High temperatures forecast to trend down early next with increasing Delta flow. && .AVIATION... VFR conds ovr intr NorCal nxt 24 hrs exc lcl MVFR/IFR poss vcnty of Delta in ST til abt 18z. Lcl MVFR conds poss in FU vcnty of wild fires. SWly sfc wnd gsts up to 30 kts poss vcnty of Delta at times. Lcl sust Sly sfc wnd to 15 kts poss in S Sac Vly aft 20z. && .STO WATCHES/WARNINGS/ADVISORIES... Excessive Heat Watch from Friday morning through Monday evening for Burney Basin / Eastern Shasta County-Carquinez Strait and Delta-Central Sacramento Valley-Motherlode-Mountains Southwestern Shasta County to Western Colusa County-Northeast Foothills/Sacramento Valley-Northern Sacramento Valley-Northern San Joaquin Valley-Shasta Lake Area / Northern Shasta County- Southern Sacramento Valley-West Slope Northern Sierra Nevada- Western Plumas County/Lassen Park. &&
Nearby
Excessive Heat Warnings in California, 2021Every excessive heat warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.