Hoover Dam Visitor Center, Nevada
Regional Weather Alerts
| Alert: | Heat Advisory |
| Area(s): | Northern Elko County; Southeastern Elko County; Northern Lander County and Northern Eureka County; Southern Lander County and Southern Eureka County; Southwest Elko County; South Central Elko County |
| Effective: | 2026-07-30 @ 2:51 am -> 2026-07-30 @ 7:00 pm |
| Onset: | 2026-07-31 @ 1:00 pm -> 2026-07-31 @ 11:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Elko NV on 2026-07-30 @ 2:51 am |
| Headline: | Heat Advisory issued July 30 at 12:51AM PDT until July 31 at 9:00PM PDT by NWS Elko NV |
| Description: |
* WHAT...High temperatures 99 to 104 degrees expected in the valleys. * WHERE...Northern Lander and Northern Eureka, Southern Lander and Southern Eureka, Northern Elko, South Central Elko, Southeastern Elko, and Southwest Elko Counties. * WHEN...From 11 AM to 9 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. |
| Alert: | Heat Advisory |
| Area(s): | Western Nevada Basin and Range including Pyramid Lake |
| Effective: | 2026-07-29 @ 11:14 pm -> 2026-07-31 @ 7:00 am |
| Onset: | 2026-07-31 @ 2:00 pm -> 2026-08-02 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Reno NV on 2026-07-29 @ 11:14 pm |
| Headline: | Heat Advisory issued July 29 at 9:14PM PDT until August 2 at 8:00AM PDT by NWS Reno NV |
| Description: |
* WHAT...Highs 101 to 105 degrees with overnight lows between 65 to 70 degrees. Widespread Moderate HeatRisk with areas of Major HeatRisk in lower valleys. * WHERE...Western Nevada Basin and Range including Pyramid Lake. * WHEN...From noon Friday to 8 AM PDT Sunday. * IMPACTS...Heat-related illnesses will be more likely, especially for those spending extended periods outdoors, in poorly cooled indoor spaces, or who are sensitive to heat. |
| Alert: | Heat Advisory |
| Area(s): | Mineral and Southern Lyon Counties |
| Effective: | 2026-07-29 @ 11:14 pm -> 2026-07-31 @ 7:00 am |
| Onset: | 2026-07-31 @ 2:00 pm -> 2026-08-02 @ 10:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Reno NV on 2026-07-29 @ 11:14 pm |
| Headline: | Heat Advisory issued July 29 at 9:14PM PDT until August 2 at 8:00AM PDT by NWS Reno NV |
| Description: |
* WHAT...Highs 101 to 105 degrees with overnight lows between 65 to 70 degrees. Widespread Moderate HeatRisk with areas of Major HeatRisk in lower valleys. * WHERE...Mineral and Southern Lyon Counties. * WHEN...From noon Friday to 8 AM PDT Sunday. * IMPACTS...Heat-related illnesses will be more likely, especially for those spending extended periods outdoors, in poorly cooled indoor spaces, or who are sensitive to heat. |
| Alert: | Extreme Heat Warning |
| Area(s): | Northwest Plateau; Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Owens Valley South; Owens Valley North; Esmeralda and Central Nye County; Lincoln County; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side |
| Effective: | 2026-07-29 @ 4:13 pm -> 2026-07-30 @ 12:00 pm |
| Onset: | 2026-07-30 @ 12:00 pm -> 2026-08-02 @ 10:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Las Vegas NV on 2026-07-29 @ 4:13 pm |
| Headline: | Extreme Heat Warning issued July 29 at 2:13PM PDT until August 2 at 8:00PM PDT by NWS Las Vegas NV |
| Description: |
* WHAT...Dangerously hot conditions with highs 110 to 120 degrees across the Mojave Desert. Highs 100 to 110 degrees across most of the southern Great Basin and Arizona Strip. Little to no overnight relief is expected, particularly in the Mojave Desert where lows of 80 to 95 degrees are forecast. This will result in major to extreme heat risk. * WHERE...Portions of northwest Arizona, southeast California, and south central and southern Nevada. * WHEN...From 10 AM PDT /10 AM MST/ Thursday to 8 PM PDT /8 PM MST/ Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. |
| Alert: | Heat Advisory |
| Area(s): | Eastern Sierra Slopes of Inyo County; White Mountains of Inyo County; Sheep Range; Spring Mountains-Red Rock Canyon |
| Effective: | 2026-07-29 @ 4:13 pm -> 2026-07-30 @ 12:00 pm |
| Onset: | 2026-07-30 @ 12:00 pm -> 2026-08-02 @ 10:00 pm |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Las Vegas NV on 2026-07-29 @ 4:13 pm |
| Headline: | Heat Advisory issued July 29 at 2:13PM PDT until August 2 at 8:00PM PDT by NWS Las Vegas NV |
| Description: |
* WHAT...Hot conditions expected with highs 80 to 90 degrees above 8000 feet and 90 to 105 degrees below 8000 feet. This will result in moderate heat risk. * WHERE...In California, Eastern Sierra Slopes and White Mountains of Inyo County. In Nevada, Sheep Range and Spring Mountains-Red Rock Canyon. * WHEN...From 10 AM Thursday to 8 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses. |
| Alert: | Air Quality Alert |
| Area(s): | Southwest Elko County |
| Effective: | 2026-07-29 @ 11:24 am -> 2026-07-30 @ 8:00 am |
| Onset: | 2026-07-29 @ 11:24 am |
| Severity: | Unknown |
| Certainty: | Unknown |
| Urgency: | Unknown |
| Issued By: | NWS Elko NV on 2026-07-29 @ 11:24 am |
| Headline: | Air Quality Alert issued July 29 at 9:24AM PDT by NWS Elko NV |
| Description: |
An Air Quality Action Day has been forecast for Southwestern Elko County for elevated particulate matter levels. These levels are anticipated to be Orange/unhealthy for sensitive groups, and an Air Quality Alert is in effect until 6 AM PDT Thursday morning. Particulate matter levels are expected to be unhealthy for sensitive groups. For additional information, please visit the EPA AIRNOW web site at www.airnow.gov and click on Nevada. Please note: These data are preliminary and have not been validated. Data is provided as a service from the Nevada Division of Environmental Protection and are not intended to replace medical advice. If you have questions about your health, please contact your local health department and/or your health care provider. |