Heat Advisory issued June 2 at 9:16AM AST until June 2 at 4:00PM AST by NWS San Juan PR
* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. * WHERE...Mayaguez and Vicinity, North Central, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest Counties. * WHEN...Until 4 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Heat Advisory issued June 1 at 10:27AM AST until June 1 at 5:00PM AST by NWS San Juan PR
* WHAT...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. * WHERE...Mayaguez and Vicinity, North Central, Northwest, Ponce and Vicinity, San Juan and Vicinity, Southeast, and Southwest municipalities. * WHEN...Until 5 PM AST this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...An extensive and dense plume of Saharan Air Layer (SAL) will also affect the local islands through midweek. This Saharan Dust will deteriorate air quality and result in hazy skies.
Heat Advisory issued May 31 at 10:13PM PDT until June 1 at 7:00AM PDT by NWS Hanford CA
* WHAT...Temperatures remain near 90 degrees in the urban areas late tonight but will lower to the 70's by sunrise. * WHERE...San Joaquin Valley, West Side Mountains, lower Sierra Nevada foothills, and the Kern River Valley. * WHEN...Until 7 AM PDT Sunday. * IMPACTS...Moderate to Major risk for heat-related illnesses, especially for those sensitive to heat.
Heat Advisory issued May 31 at 5:02AM PDT until May 31 at 10:00PM PDT by NWS Eureka CA
* WHAT...Temperatures as high as 101 expected with moderate Heat Risk. * WHERE...Trinity County, Lake County, and Northeastern Mendocino Interior. * WHEN...Until 10 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.
Heat Advisory issued May 31 at 4:24AM PDT until May 31 at 8:00PM PDT by NWS San Francisco CA
* WHAT...Temperatures in the 90s to 105 degrees * WHERE...Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, The Santa Clara Valley, North Bay Interior Mountains, East Bay Interior Valleys, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...From 11 AM this morning to 8 PM PDT this evening. * IMPACTS...Hot conditions can cause heat illnesses. This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries.
Heat Advisory issued May 30 at 10:34PM PDT until June 1 at 7:00AM PDT by NWS Hanford CA
* WHAT...High temperatures up to 105 expected. * WHERE...San Joaquin Valley, West Side Mountains, lower Sierra Nevada foothills, and the Kern River Valley. * WHEN...Until 7 AM PDT Sunday. * IMPACTS...Moderate to Major risk for heat-related illnesses, especially for those sensitive to heat.
Heat Advisory issued May 30 at 1:52PM PDT until May 31 at 11:00PM PDT by NWS Sacramento CA
* WHAT...Dangerously hot conditions with temperatures 99 to 107 and widespread Major HeatRisk expected. Limited overnight relief with low temperatures in the mid 60s to mid 70s. * WHERE...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, and Southern Sacramento Valley. * WHEN...Until 11 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Area waterways continue to run cold and fast
Extreme Heat Warning issued May 31 at 2:32AM PDT until May 31 at 11:00PM PDT by NWS Las Vegas NV
* WHAT...Dangerously hot conditions with a major risk for heat related illness and impacts. * WHERE...Lake Mead National Recreation Area, Death Valley National Park, Western Mojave Desert, Eastern Mojave Desert, Northeast Clark County, Western Clark and Southern Nye County, Las Vegas Valley, and Southern Clark County. * WHEN...Until 11 PM PDT /11 PM MST/ this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures today will reach 105 to 110 in the Lake Mead Recreation Area, 100 to 105 in the western Mojave Desert including Barstow, and 103 to 109 in the valleys of southern
Heat Advisory issued May 31 at 7:17AM MDT until June 1 at 1:00AM MDT by NWS Missoula MT
* WHAT...Moderate risk of heat effects expected. * WHERE...Lower Hells Canyon/Salmon River Region and Orofino/Grangeville Region. * WHEN...From noon today to midnight PDT tonight. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. * ADDITIONAL DETAILS...Early-season high temperatures expected to reach 90 to 102 degrees. Be mindful that rivers and streams continue to flow cold, high, and fast with murky waters potentially obscuring underwater hazards.
Heat Advisory issued May 31 at 7:17AM MDT until May 31 at 10:00PM MDT by NWS Missoula MT
* WHAT...Moderate risk of heat effects expected. * WHERE...For elevations below 4000 feet, including Lowell and Elk City. * WHEN...From noon today to 9 PM PDT this evening. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. * ADDITIONAL DETAILS...Early-season high temperatures expected to reach 92 to 101 degrees. Be mindful that rivers and streams continue to flow cold, high, and fast with murky waters potentially obscuring underwater hazards.