Planning to travel this week? Here’s what could impact your route.
- Repeated heavy rain threatens road travel across North Carolina, South Carolina, and northern Georgia today into Saturday, with localized totals above 5 inches and flash flooding possible.
- Extreme heat continues across southern Nevada, southern California, and western Arizona through Monday, with inland desert temperatures reaching 120 degrees.
- Severe thunderstorms threaten North Dakota, northern South Dakota, and Minnesota this afternoon and evening, with damaging winds, large to very large hail, and possibly a tornado.
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Significant travel weather for the next 2-3 days.
Weather Impacts Pacific:
— Southeastern Washington, southeastern Oregon, and western Idaho: Heat Advisories today, continuing Saturday in southeastern Oregon and southwestern Idaho, with temperatures up to 107 degrees making daytime travel and outdoor stops more difficult.
— Central Washington, much of central and western Oregon, northwestern Nevada, northern California, and southwestern Idaho: Red Flag Warnings today and Saturday, with wind gusts up to 45 mph supporting rapid fire spread. I-5, I-80, I-82, I-84, I-90, US-2, US-12, US-20, US-26, US-50 impacted.
— Northern Nevada: A Heat Advisory today will bring temperatures of 99 to 104 degrees.
— Southern Nevada, southern California from the coast to the deserts, and western Arizona, including Death Valley and Joshua Tree National Parks: Extreme Heat Warnings and Advisories continue through Monday. Coastal temperatures will generally range from the 80s to upper 90s, while inland deserts may reach 120 degrees. I-5, I-8, I-10, I-11, I-15, I-40 impacted.
Weather Impacts Mountain:
— Much of Montana and adjacent north-central Wyoming: Extreme Heat Warnings and Heat Advisories continue through Sunday, with temperatures up to 108 degrees making daytime travel and outdoor stops more difficult. I-15, I-90, I-94, US-2, US-12, US-14, US-16, US-87 impacted.
— Much of central and western Montana: Red Flag Warnings today and Saturday, with wind gusts up to 40 mph supporting rapid fire spread. I-15, I-94, US-2, US-12, US-87, US-89, US-191 impacted.
— Central and south-central Montana: Isolated severe thunderstorms may produce damaging winds Saturday afternoon. I-15, I-90, I-94, US-12, US-87, US-89, US-191, US-212 potentially impacted.
— Eastern and southern Idaho: A Heat Advisory today will bring temperatures of 95 to 100 degrees.
— Eastern Wyoming and the Nebraska Panhandle: Heat Advisories Saturday through Monday, with temperatures up to 110 degrees making daytime travel and outdoor stops more difficult.
— Northern Utah: An Extreme Heat Watch Saturday through Tuesday, with temperatures potentially exceeding 100 degrees along the Wasatch Front and in Cache Valley. I-15, I-80, I-84, US-6, US-89 potentially impacted.
— Colorado’s northern Front Range, including Fort Collins, Boulder, Denver, and Greeley: Heat Advisories Saturday and Sunday, with temperatures up to 103 degrees.
— Western and southern Arizona, including Phoenix, Tucson, and also the lower elevations of the Grand Canyon: Extreme Heat Warnings continue through Monday around Phoenix, through Saturday around Tucson and southeastern Arizona, and through Sunday at the Grand Canyon, with temperatures up to 118 degrees. I-8, I-10, I-17, I-19, US-60, US-70, US-89A, US-180, US-191 impacted.
— Southeastern Arizona: Isolated severe thunderstorms may produce damaging winds Saturday afternoon. I-10, I-19, US-70, US-89, US-191 potentially impacted.
— East-central Arizona and much of western and central New Mexico: Monsoonal thunderstorms may produce flash flooding Saturday, with water covering low roads and crossings. I-25, I-40, US-54, US-60, US-70, US-82, US-180, US-191, US-285, US-380, US-491 potentially impacted.
— Parts of southern and southeastern New Mexico and far-west Texas: Heat Advisories today, with temperatures up to 107 degrees.
Weather Impacts Central:
— Most of North Dakota, northern South Dakota, and much of Minnesota: Severe thunderstorms this afternoon and evening may produce damaging winds, large to very large hail, and possibly a tornado. The greatest risk of severe weather will be across eastern North Dakota and northern Minnesota. I-29, I-35, I-94, US-2, US-10, US-12, US-52, US-53, US-59, US-71, US-81, US-83, US-85, US-169, US-212, US-281, MN-61 potentially impacted.
— Central and western South Dakota: Isolated severe thunderstorms may produce damaging winds Saturday. I-90, US-14, US-18, US-83, US-212 potentially impacted.
— South-central and southeast Minnesota and much of Wisconsin: Isolated severe thunderstorms may produce damaging winds and hail Saturday. I-35, I-35E, I-35W, I-39, I-41, I-43, I-90, I-94 potentially impacted.
— Minnesota, Wisconsin, Iowa, and northern Illinois: Scattered severe thunderstorms may produce large hail and damaging winds Sunday and Sunday night. I-29, I-35, I-35E, I-35W, I-39, I-41, I-43, I-55, I-57, I-74, I-80, I-88, I-90, I-94 potentially impacted.
— Nebraska, northern and eastern Kansas, central and southern Minnesota, much of Iowa and Missouri, and western Illinois: Heat Advisories and Extreme Heat Watches Saturday through Tuesday, with heat-index values up to 112 degrees. I-29, I-35, I-35E, I-35W, I-44, I-49, I-55, I-57, I-64, I-70, I-72, I-74, I-80, I-88, I-90, I-94 impacted.
— South-central Kansas, much of Oklahoma, north-central Texas, and the eastern Texas Panhandle: Heat Advisories today, with heat-index values up to 109 degrees.
— Central Kansas, near Salina: A Flood Warning continues this morning after 2 to 4 inches of rain, with another 1 to 2 inches possible. Flooding of low-lying roads, creeks, and streams is ongoing or imminent. I-70 and nearby highways may be impacted.
— Eastern Kansas, much of Missouri, northern and eastern Arkansas, northern Mississippi, and northern and central Alabama: Slow-moving thunderstorms may produce flash flooding today, covering low roads and crossings. I-20, I-22, I-29, I-35, I-40, I-44, I-49, I-55, I-59, I-65, I-69, I-70, I-85 potentially impacted.
— Southern middle Tennessee and northeastern Alabama: Flood Watches today into Saturday morning as repeated thunderstorms may cause flash flooding of poor-drainage roads, creeks, and low crossings. I-59, I-65, US-64, US-72, US-231, US-278, US-431 potentially impacted.
Weather Impacts East:
— Michigan and northern Indiana: Scattered severe thunderstorms may produce large hail and damaging winds Sunday and Sunday night. I-57, I-65, I-69, I-75, I-80, I-90, I-94, I-96 potentially impacted.
— South-central North Carolina, in Union County: A Flood Warning continues until 9:30 a.m. EDT after 2 to 3 inches of rain fell on saturated ground. Some roads remain closed because of flooding. US-74 impacted.
— West-central North Carolina, in Rowan County: A Flood Warning continues until 10:30 a.m. EDT as water rises rapidly along the Second Creek near US-70 inundate low-water crossings. US-70 impacted.
— Parts of North Carolina, South Carolina, and northern Georgia: Flood Watches continue today into Saturday morning as repeated storms along a stalled front bring 2 to 5 inches of rain, with localized totals above 5 inches. Flash flooding may cover urban, poor-drainage, and low-lying roads. I-20, I-24, I-26, I-40, I-59, I-73, I-74, I-75, I-77, I-85, I-95 potentially impacted.
— Southeastern North Carolina and eastern South Carolina: Isolated severe thunderstorms may produce damaging winds today. I-16, I-20, I-26, I-40, I-74, I-95 potentially impacted.
— Eastern North Carolina and eastern South Carolina: Organized thunderstorms may produce high rainfall rates and flash flooding Saturday, with water covering low roads and crossings. I-20, I-26, I-40, I-74, I-95, US-1, US-17, US-52, US-64, US-70, US-74, US-76, US-78, US-264, US-301, US-421, NC-12 potentially impacted.
Tropical Weather Outlook for the next 7 days:
— The remnants of Bertha have dissipated into a trough over eastern Texas, with maximum sustained winds near 35 mph. Rainfall totals of 1 to 3 inches, with isolated totals near 4 inches, may cause isolated urban flash flooding in South Texas early today, while elevated coastal water and dangerous surf and rip currents linger along the Texas and Louisiana coasts.
— Hurricane Fausto is forecast to weaken as it moves west. Swells are affecting the southern California coast and may produce life-threatening surf and rip currents.
Outlook Sunday July 26th through Thursday July 30th:
— Sunday, July 26 through Thursday, July 30: From southern California and the Southwest through the central and southern Plains, Mississippi Valley, and Southeast: Hazardous heat may create challenging conditions. Major highways potentially affected include I-4, I-5, I-8, I-10, I-15, I-20, I-25, I-30, I-35, I-40, I-55, I-64, I-65, I-70, I-75, I-80, I-84, I-85, I-95.
— Sunday, July 26 through Monday, July 27: From the northern Rockies through the central and northern Plains into the Upper Midwest and lower Great Lakes: Hazardous heat may create challenging conditions. Major highways potentially affected include I-15, I-25, I-29, I-35, I-55, I-64, I-65, I-70, I-74, I-76, I-80, I-90, I-94.
— Sunday, July 26 through Monday, July 27: Upper Midwest into the Great Lakes and Ohio Valley: Severe weather may create rapidly changing and hazardous travel conditions across Minnesota, northeastern Iowa, Wisconsin, northwestern Illinois, and northwestern Michigan Sunday, shifting into the Great Lakes and Ohio Valley Monday. Major highways potentially affected include I-35, I-55, I-65, I-70, I-71, I-74, I-75, I-80, I-90, I-94.
— Monday, July 27: From the lower Great Lakes and Ohio Valley through the central Appalachians into western Pennsylvania and western New York: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-90.
— Tuesday, July 28: From northeastern North Carolina and the Mid-Atlantic through New Jersey, eastern New York and much of New England: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-64, I-76, I-80, I-84, I-85, I-87, I-90, I-91, I-95.
Extended Outlook July 31st through August 6th:
— Friday, July 31 through Thursday, August 6: From the Pacific Northwest and West through the Rockies, Plains, Mississippi Valley, and the Gulf Coast and Florida: Extreme heat may develop across this broad area. Major highways potentially affected include I-4, I-5, I-8, I-10, I-15, I-20, I-25, I-29, I-30, I-35, I-40, I-55, I-64, I-65, I-70, I-75, I-76, I-80, I-84, I-90, I-94, I-95.
— Friday, July 31 through Sunday, August 2: Southern Alabama and northern Florida through southern Georgia and the coastal Carolinas: Heavy precipitation may develop, creating localized flooding and difficult travel. Major highways potentially affected include I-4, I-10, I-40, I-65, I-75, I-95.
— Sunday, August 2 through Thursday, August 6: Southeastern California, southern Nevada, and much of Arizona: Heavy precipitation may develop, creating localized flooding and difficult travel. Major highways potentially affected include I-8, I-10, I-15, I-40.
Confidence in the Extended Outlook:
Confidence is above average for the earlier period because of generally good agreement on the large-scale pattern. Confidence decreases sharply later in the outlook because ensemble spread increases.
Looking for real-time road conditions? Here’s a link, courtesy of the Federal Highway Administration, to all the individual State 511 websites.
Your route’s weather may vary from the general forecast — check your exact trip
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