Alert archive / California / Excessive Heat Warnings in 2021
Excessive Heat Warning 2, NWS San Francisco Bay Area, CA
NWS San Francisco Bay Area, CA issued this excessive heat warning at Jul 8, 2021, 3:33 AM PDT for 7 counties in California. It took effect at Jul 9, 2021, 12:00 PM PDT. It was in force for 57 hr. 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 8, 2021, 3:33 AM PDT (10:33 UTC)
- In effect from
- Jul 9, 2021, 12:00 PM PDT
- Expired
- Jul 11, 2021, 8:57 PM PDT
- In force
- 57 hr
- Issued by
- NWS San Francisco Bay Area, CA
Counties Alameda County, CA, Contra Costa County, CA, Monterey County, CA, San Benito County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA
The radar
The San Francisco radar (KMUX), 12 km from the middle of the area, began a volume at 10:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Oakland, CA (KOAK), launched 00:00Z, 10.6 hours before the alert went out and 74 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1587 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
077 WWUS76 KMTR 081033 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 333 AM PDT Thu Jul 8 2021 CAZ507-511-516>518-082100- /O.UPG.KMTR.EH.A.0001.210710T1900Z-210712T0600Z/ /O.NEW.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ North Bay Mountains-East Bay Hills and the Diablo Range- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Blackhawk, Greenfield, and King City 333 AM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County and Interior Monterey County Including Pinnacles National Park. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ510-082100- /O.NEW.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ East Bay Interior Valleys- Including the cities of Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, and San Ramon 333 AM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. * WHERE...East Bay Interior Valleys. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
12 follow-up statements
580 WWUS76 KMTR 081547 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 847 AM PDT Thu Jul 8 2021 CAZ512-090400- /O.EXA.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ Santa Cruz Mountains- Including the cities of Scotts Valley, Boulder Creek, and Day Valley 847 AM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 100 to 106 expected. Overnight temperatures will also remain very warm, mostly in the 70s to low 80s in the higher elevations. * WHERE...Santa Cruz Mountains. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the highest elevations of the Santa Cruz Mountains where little heat relief is expected as temperatures will remain warm through the night. 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. && $$ CAZ507-510-511-516>518-090400- /O.CON.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Greenfield, and King City 847 AM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County and Interior Monterey County Including Pinnacles National Park. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ513-090400- /O.NEW.KMTR.HT.Y.0004.210709T1900Z-210712T0600Z/ Santa Clara Valley Including San Jose- Including the city of San Jose 847 AM PDT Thu Jul 8 2021 ...HEAT ADVISORY IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Hot daytime temperatures of mid to upper 90s closer to the South Bay, with upper 90s to mid 100s expected in the interior Santa Clara County. Overnight temperatures will also remain very warm, mostly mid to upper 60s. * WHERE...Santa Clara Valley Including San Jose. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes to the East Bay Hills as well as interior Santa Clara Valley locations like Morgan Hill, San Martin, and Gilroy. 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. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
067 WWUS76 KMTR 090523 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 1023 PM PDT Thu Jul 8 2021 CAZ507-510>512-516>518-091200- /O.CON.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 1023 PM PDT Thu Jul 8 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ513-091200- /O.CON.KMTR.HT.Y.0004.210709T1900Z-210712T0600Z/ Santa Clara Valley Including San Jose- Including the city of San Jose 1023 PM PDT Thu Jul 8 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO 11 PM PDT SUNDAY... * WHAT...Hot daytime temperatures of mid to upper 90s closer to the South Bay, with upper 90s to mid 100s expected in the interior Santa Clara County. Overnight temperatures will also remain very warm, mostly mid to upper 60s. * WHERE...Santa Clara Valley Including San Jose. * WHEN...From noon Friday to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes to the East Bay Hills as well as interior Santa Clara Valley locations like Morgan Hill, San Martin, and Gilroy. 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. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
777 WWUS76 KMTR 091141 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 441 AM PDT Fri Jul 9 2021 CAZ507-510>512-516>518-092100- /O.CON.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 441 AM PDT Fri Jul 9 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...From noon today to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ513-092100- /O.CON.KMTR.HT.Y.0004.210709T1900Z-210712T0600Z/ Santa Clara Valley Including San Jose- Including the city of San Jose 441 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 11 PM PDT SUNDAY... * WHAT...Hot daytime temperatures of mid to upper 90s closer to the South Bay, with upper 90s to mid 100s expected in the interior Santa Clara County. Overnight temperatures will also remain very warm, mostly mid to upper 60s. * WHERE...Santa Clara Valley Including San Jose. * WHEN...From noon today to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes to the East Bay Hills as well as interior Santa Clara Valley locations like Morgan Hill, San Martin, and Gilroy. 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. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
592 WWUS76 KMTR 091604 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 904 AM PDT Fri Jul 9 2021 CAZ507-510>512-516>518-100015- /O.CON.KMTR.EH.W.0002.210709T1900Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 904 AM PDT Fri Jul 9 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Isolated locations may reach as high as 118. Overnight temperatures will also remain very warm, mostly in the mid 70s, but to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...From noon today to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ506-100015- /O.EXA.KMTR.HT.Y.0004.210709T1900Z-210712T0600Z/ North Bay Interior Valleys- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, and Rohnert Park 904 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 11 PM PDT SUNDAY... * WHAT...Hot conditions with daytime temperatures of 95 to 107 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but to mid 80s in the higher elevations. * WHERE...North Bay Interior Valleys. * WHEN...From noon today to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes to the East Bay Hills as well as interior Santa Clara Valley locations like Morgan Hill, San Martin, and Gilroy. 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. && $$ CAZ513-100015- /O.CON.KMTR.HT.Y.0004.210709T1900Z-210712T0600Z/ Santa Clara Valley Including San Jose- Including the city of San Jose 904 AM PDT Fri Jul 9 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 11 PM PDT SUNDAY... * WHAT...Hot daytime temperatures of mid to upper 90s closer to the South Bay, with upper 90s to near 105 expected in the interior Santa Clara County. Overnight temperatures will also remain very warm, mostly mid to upper 60s. * WHERE...Santa Clara Valley Including San Jose. * WHEN...From noon today to 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes to the East Bay Hills as well as interior Santa Clara Valley locations like Morgan Hill, San Martin, and Gilroy. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
248 WWUS76 KMTR 092354 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 454 PM PDT Fri Jul 9 2021 CAZ507-510>512-516>518-101200- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 454 PM PDT Fri Jul 9 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Isolated locations may reach as high as 118. Overnight temperatures will also remain very warm, mostly in the mid 70s, but to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ506-513-101200- /O.CON.KMTR.HT.Y.0004.000000T0000Z-210712T0600Z/ North Bay Interior Valleys-Santa Clara Valley Including San Jose- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, and San Jose 454 PM PDT Fri Jul 9 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Hot conditions with daytime temperatures of 95 to 107 expected. Overnight temperatures will also remain very warm, mostly mid to upper 60s, but 70s expected at higher elevations. * WHERE...North Bay Interior Valleys and Santa Clara Valley Including San Jose. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes and interior locations of the valleys. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
378 WWUS76 KMTR 101140 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 440 AM PDT Sat Jul 10 2021 CAZ507-510>512-516>518-102100- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 440 AM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ506-513-102100- /O.CON.KMTR.HT.Y.0004.000000T0000Z-210712T0600Z/ North Bay Interior Valleys-Santa Clara Valley Including San Jose- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, and San Jose 440 AM PDT Sat Jul 10 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Hot conditions with daytime temperatures of 95 to 105 expected. Overnight temperatures will also remain very warm, mostly mid to upper 60s, but 70s expected at higher elevations. * WHERE...North Bay Interior Valleys and Santa Clara Valley Including San Jose. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes and interior locations of the valleys. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
819 WWUS76 KMTR 102034 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 134 PM PDT Sat Jul 10 2021 CAZ507-510>512-516>518-110400- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 134 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 102 to 110 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ506-513-110400- /O.CON.KMTR.HT.Y.0004.000000T0000Z-210712T0600Z/ North Bay Interior Valleys-Santa Clara Valley Including San Jose- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, and San Jose 134 PM PDT Sat Jul 10 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Hot conditions with daytime temperatures of 95 to 105 expected. Overnight temperatures will also remain very warm, mostly mid to upper 60s, but 70s expected at higher elevations. * WHERE...North Bay Interior Valleys and Santa Clara Valley Including San Jose. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes and interior locations of the valleys. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
628 WWUS76 KMTR 110344 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 844 PM PDT Sat Jul 10 2021 CAZ507-510>512-516>518-111200- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 844 PM PDT Sat Jul 10 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with daytime temperatures of 98 to 107 expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ CAZ506-513-111200- /O.CON.KMTR.HT.Y.0004.000000T0000Z-210712T0600Z/ North Bay Interior Valleys-Santa Clara Valley Including San Jose- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, and San Jose 844 PM PDT Sat Jul 10 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT SUNDAY... * WHAT...Hot conditions with daytime temperatures of 92 to 100 expected. Overnight temperatures will also remain very warm, mostly mid to upper 60s, but 70s expected at higher elevations. * WHERE...North Bay Interior Valleys and Santa Clara Valley Including San Jose. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in rural areas closes and interior locations of the valleys. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
785 WWUS76 KMTR 111141 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 441 AM PDT Sun Jul 11 2021 CAZ507-510>512-516>518-112100- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 441 AM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with daytime temperatures in the upper 90s up to 110 degrees expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but up to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park, and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties.. 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. && $$ CAZ506-513-112100- /O.CON.KMTR.HT.Y.0004.000000T0000Z-210712T0600Z/ North Bay Interior Valleys-Santa Clara Valley Including San Jose- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, and San Jose 441 AM PDT Sun Jul 11 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Hot conditions with daytime temperatures of 92 to 103 expected. Overnight temperatures will also remain very warm, mostly mid to upper 60s, but 70s expected at higher elevations. * WHERE...North Bay Interior Valleys and Santa Clara Valley Including San Jose. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in far interior locations of the valleys. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
867 WWUS76 KMTR 112338 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 438 PM PDT Sun Jul 11 2021 CAZ506-513-120045- /O.CAN.KMTR.HT.Y.0004.000000T0000Z-210712T0600Z/ North Bay Interior Valleys-Santa Clara Valley Including San Jose- Including the cities of Santa Rosa, South Santa Rosa, Napa, San Rafael, Petaluma, Novato, Rohnert Park, and San Jose 438 PM PDT Sun Jul 11 2021 ...HEAT ADVISORY IS CANCELLED... Cooling sea breeze winds have now brought temperatures below advisory criteria. $$ CAZ507-510>512-516>518-120215- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 438 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with daytime temperatures in the upper 90s up to 110 degrees expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but up to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park, and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
156 WWUS76 KMTR 120136 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 636 PM PDT Sun Jul 11 2021 CAZ507-510>512-516>518-120600- /O.CON.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 636 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING... * WHAT...Dangerously hot conditions with daytime temperatures in the upper 90s up to 110 degrees expected. Overnight temperatures will also remain very warm, mostly in the mid 70s, but up to mid 80s in the higher elevations. * WHERE...North Bay Mountains, East Bay Hills and the Diablo Range, East Bay Interior Valleys, Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito County, Interior Monterey County Including Pinnacles National Park, and the Santa Cruz Mountains. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Increased risk of heat related illnesses such as heat exhaustion and heat stroke can occur due to prolonged exposure to hot temperatures. People most vulnerable include those who spend extended periods outdoors, those without air conditioning, young children, the elderly, and those with chronic illness. * ADDITIONAL DETAILS...The hottest temperatures are expected in the mountains of San Benito and Monterey counties, the far southern end of the Salinas Valley, and the mountains of northeastern Napa and Sonoma counties. 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. && $$ For more information from the National Weather Service visit http://weather.gov/mtr
655 WWUS76 KMTR 120357 NPWMTR URGENT - WEATHER MESSAGE National Weather Service San Francisco Bay Area 857 PM PDT Sun Jul 11 2021 CAZ507-510>512-516>518-120500- /O.CAN.KMTR.EH.W.0002.000000T0000Z-210712T0600Z/ North Bay Mountains-East Bay Interior Valleys- East Bay Hills and the Diablo Range-Santa Cruz Mountains- Southern Salinas Valley/Arroyo Seco and Lake San Antonio- Santa Lucia Mountains and Los Padres National Forest- Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park- Including the cities of Angwin, Lagunitas-Forest Knolls, Woodacre, Concord, Antioch, Livermore, Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, Scotts Valley, Boulder Creek, Day Valley, Greenfield, and King City 857 PM PDT Sun Jul 11 2021 ...EXCESSIVE HEAT WARNING IS CANCELED... Still warm to hot well inland Monday, however a weakening high pressure system by mid week and late day weak sea breezes will offset recently very hot temperatures. Expect no to low heat risks by Tuesday. The excessive heat warning is canceled. $$ For more information from the National Weather Service visit http://weather.gov/mtr
The office that day
Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 8:47 AM PDT | Heat Advisory | MTR | Marin, Napa, Santa Clara, Sonoma | 3 days |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.