---

Planning to travel this week? Here’s what could impact your route.

• FLASH FLOOD EMERGENCIES AND LIFE-THREATENING FLOODING in south-central and southwest Texas — Catastrophic flooding around Uvalde, Kerrville, and the Guadalupe River
• Severe thunderstorms may affect a broad corridor from the Great Lakes to the Northeast and Mid-Atlantic Saturday— Damaging storms could disrupt travel across some of the nation’s busiest Interstate corridors Saturday afternoon and night.
• Flash flooding possible across southern Utah and much of Arizona today into Friday — Slow-moving storms may flood highways, dry washes, slot canyons, burn scars, and heavily visited areas around Zion, Capitol Reef, and the Grand Canyon.

Your route’s weather may vary from the general forecast — check your exact trip

This free daily forecast is separate from a paid RV Weather SureRoute subscription. SureRoute checks the weather along your specific route and travel timing.

---

Significant travel weather for the next 2-3 days.

Weather Impacts Pacific

— Much of Washington and adjacent north-central Oregon: Red Flag Warnings today, with thunderstorms and wind gusts up to 60 mph supporting rapid fire spread. I-82, I-90, US-2, US-12, US-97, US-101, US-395 impacted.

— Eastern Washington and eastern Oregon: Isolated severe thunderstorms with damaging wind and hail are possible today. I-84, I-90, US-2, US-12, US-20, US-26, US-95, US-395 potentially impacted.

— Much of central and eastern Washington, north-central and northeastern Oregon, and adjacent western Idaho: Heat Advisories today, with temperatures 100 to 103 degrees.

— Southern California interior mountains of Los Angeles, Santa Barbara, and Ventura Counties: Red Flag Warnings today, with wind gusts up to 50 mph supporting rapid fire spread. I-5, US-101, CA-138 impacted.

— Parts of central and southern California and southwest Arizona: Extreme Heat Warnings and Heat Advisories today, with temperatures up to 114 degrees in the deserts, 107 degrees in the Central Valley and inland areas, and near 85 degrees along the Orange County and San Diego coasts. I-5, I-8, I-10, I-15, US-60, US-95, US-101, CA-1, CA-2 impacted.

Weather Impacts Mountain:

— Western and central Montana and much of Idaho: Scattered severe thunderstorms are possible this afternoon and evening, with strong wind gusts and large hail the primary hazards. The greatest risk of severe weather will be across central and southwestern Montana. I-15, I-84, I-86, I-90, US-2, US-12, US-20, US-26, US-87, US-89, US-93, US-95, US-191, US-212, US-287 potentially impacted.

— Western Montana and central and northern Idaho: Isolated severe thunderstorms with hail and damaging wind are possible Friday. I-15, I-90, US-2, US-12, US-87, US-89, US-93, US-95, US-191 potentially impacted.

— A portion of central Montana: Flash Flood Watch today, with thunderstorm rainfall rates of 0.25 to 0.75 inch per hour and debris flows possible near the recent Horse Gulch Burn Scar. I-90, US-12, US-191 potentially impacted.

— Northeast Montana: Dense Fog Advisory this morning, with visibility below one-quarter mile and difficult driving. US-2, US-191 impacted.

— Southwest Idaho: Red Flag Warning today, with thunderstorm wind gusts of 45 to 60 mph supporting rapid fire spread. I-84, US-20, US-26, US-93, US-95 impacted.

— Portions of central and northwest Wyoming: Flood Watch today, with slow-moving storms capable of producing an inch or more of rain in a short period and local flash flooding. US-14, US-16, US-20, US-212 potentially impacted.

— Northeast Wyoming and western South Dakota: Heat Advisory today, with heat index values up to 103 degrees.

— Southern Utah and much of Arizona: Flood Watches today into Friday morning, including Zion and Capitol Reef National Parks and Grand Canyon Country, with slow-moving storms producing isolated rainfall totals of 1 to 3 inches and localized rates over 2 to 3 inches per hour. I-8, I-10, I-15, I-17, I-19, I-40, I-70 potentially impacted.

— Southwestern Utah, much of Arizona, and southern New Mexico: Flash flooding is possible Friday and again on Saturday as localized heavy rain develops, especially in dry washes, slot canyons, burn scars, and other sensitive terrain. I-8, I-10, I-15, I-17, I-19, I-25, I-40, I-70 potentially impacted.

Weather Impacts Central

— South-central and southwest Texas west and southwest of San Antonio, including Val Verde, Kinney, Maverick, Zavala, Uvalde, Medina, Real, Kerr, Bandera, Kendall, Gillespie, Kimble, and Sutton Counties: Multiple FLASH FLOOD WARNINGS continue through 11:30 AM CDT, including FLASH FLOOD EMERGENCIES around Uvalde, Kerrville, and the Guadalupe River between Center Point and Bergheim. Rainfall totals up to 20 inches have been reported, including up to 8 inches in two hours; additional rainfall of up to 6 inches is possible, with rates of 2 to 4 inches per hour. A large flood wave with a 32-foot rise in four hours is moving down the Guadalupe River, and life-threatening flooding may cover highways, streets, underpasses, and low-water crossings. I-10, US-79, US-83, US-87, US-90, US-277 and surrounding local roads may be closed or highly impacted.

— Western, central, and southern Texas: A combination of a Flood Warnings, Watches, and Advisories continue today and Friday, with rainfall rates of 2 to 4 inches per hour and 2 to 6 inches of rain possible, with some areas seeing 10 to 15 inches of rain. Moderate flooding at Leon Creek near I-35S is affecting roads and bridges. I-10, I-20, I-35, I-37, US-59, US-67, US-79, US-83, US-84 impacted.

— Central and southern North Dakota, much of South Dakota, and parts of central and southeast Minnesota: Heat Advisories today, with an Extreme Heat Warning in the Twin Cities continuing Friday; heat index values may reach 100 degrees. I-35, I-35E, I-35W, I-94, US-10, US-12, US-61, US-169 impacted.

— Northeastern North Dakota and northwestern Minnesota: Isolated severe thunderstorms with damaging wind and hail are possible today. I-29, US-2, US-53, US-59, US-71, US-281 potentially impacted.

— Northern Arkansas, adjacent northeastern Oklahoma, and western Tennessee: Dense Fog Advisories this morning, with visibility as low as one-quarter mile. I-40, I-49, I-55, US-45, US-45E, US-49, US-51, US-60 impacted.

— North-central and northeast Minnesota and northern Wisconsin: Isolated severe thunderstorms with damaging wind, hail, and an isolated tornado threat are possible Friday, beginning in northern Minnesota during the morning and spreading southeast. I-35, I-41, I-43, US-2, US-8, US-41, US-45, US-51, US-53, US-71, US-141, US-169, MN-61 potentially impacted.

— Southeastern Wisconsin, most of Illinois, and most of Kentucky: Isolated severe thunderstorms are possible Saturday afternoon and evening, moving southeast overnight. I-24, I-39, I-40, I-41, I-43, I-44, I-55, I-57, I-64, I-65, I-69, I-70, I-72, I-74, I-75, I-80, I-88, I-90, I-94 potentially impacted.

Weather Impacts East

— Western and central Michigan: Smoke today from Canadian wildfires may reduce visibility for morning travel. I-69, I-94, I-96, US-10, US-31, US-127, US-131 impacted.

— Michigan Upper Peninsula and northern Michigan Lower Peninsula: Isolated severe thunderstorms with damaging wind, hail, and an isolated tornado threat are possible Friday morning. I-75, US-2, US-8, US-23, US-31, US-41, US-45, US-51, US-131, US-141 potentially impacted.

— Central and southern Michigan, Indiana, Ohio, most of Kentucky, eastern Tennessee, West Virginia, central and western Massachusetts, most of Connecticut, New York, Pennsylvania, New Jersey, Maryland, the District of Columbia, Delaware, Virginia, North Carolina, and northern and central South Carolina: Scattered severe thunderstorms are possible Saturday afternoon and evening, moving southeast toward the Mid-Atlantic overnight. I-20, I-26, I-40, I-57, I-64, I-65, I-66, I-68, I-69, I-70, I-71, I-73, I-74, I-75, I-76, I-77, I-78, I-79, I-80, I-81, I-83, I-84, I-85, I-86, I-87, I-88, I-90, I-91, I-94, I-95, I-96, I-97, I-99 potentially impacted.

— Indiana, Ohio, and northern Kentucky: Heat Advisories in Indiana and humid heat elsewhere today, with heat index values up to 102 degrees. I-70, I-71, I-74, I-75, US-23, US-27, US-36, US-50, US-62 impacted.

— Southern Pennsylvania, northern Maryland, central and northern Delaware, and southern New Jersey: Isolated severe thunderstorms with locally damaging wind are possible today. I-68, I-70, I-76, I-78, I-79, I-81, I-83, I-95, I-97, I-99 potentially impacted.

— Central and southern Maine, much of New Hampshire, central and northern Vermont, and far-northeast New York: Isolated severe thunderstorms with locally damaging wind are possible today. I-87, I-89, I-91, I-93, I-95, US-1, US-2, US-3, US-4, US-5, US-7, US-11, US-201 potentially impacted.

— Southeast Pennsylvania, northern Delaware, and southwest New Jersey: Heat Advisory today, with heat index values around 100 degrees.

— South Florida: Heat Advisory today, with heat index values of 105 to 108 degrees.

Outlook Saturday July 18th through Tuesday July 22nd:

— Saturday, July 18 through Wednesday, July 22: from southeastern California across the Intermountain West and Rockies into New Mexico and western Texas: Heavy rain may create localized flooding and reduced visibility, with the southeastern New Mexico and western Texas portion focused on Saturday and Sunday. Major highways potentially affected include I-8, I-10, I-15, I-20, I-25, I-40, I-70, I-80, I-84, I-90.

— Saturday, July 18 through Sunday, July 19: from southeastern Montana and eastern Wyoming through the northern Plains and Upper Midwest: Hazardous heat may create challenging conditions, with southeastern Montana and eastern Wyoming focused on Saturday. Major highways potentially affected include I-25, I-29, I-35, I-70, I-74, I-80, I-90, I-94.

— Saturday, July 18: from the Great Lakes and Ohio and Tennessee Valleys through the central Appalachians and Mid-Atlantic into the Northeast: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-40, I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-81, I-84, I-87, I-90, I-91, I-94, I-95.

— Saturday, July 18 through Wednesday, July 22: from Florida and Georgia through the Carolinas into southeastern Virginia: Hazardous heat may create challenging conditions, continuing through Tuesday across much of North Carolina and southeastern Virginia and through Wednesday from southeastern North Carolina southward. Major highways potentially affected include I-4, I-10, I-20, I-40, I-64, I-74, I-75, I-85, I-87, I-95.

— Sunday, July 19 through Wednesday, July 22: from southeastern Kansas and Missouri through eastern Oklahoma and Arkansas into the Lower Mississippi Valley and central Gulf Coast: Hazardous heat may create challenging conditions, with southeastern Kansas and Missouri focused on Sunday and Monday, most of eastern Oklahoma and Arkansas through Tuesday, and the Lower Mississippi Valley and central Gulf Coast continuing through Wednesday. Major highways potentially affected include I-10, I-20, I-29, I-30, I-35, I-40, I-55, I-64, I-65, I-70.

Extended Outlook July 23rd through July 29th:

— Thursday, July 23 through Saturday, July 25: much of Washington, northeastern Oregon, and northwestern Idaho: Extreme heat may develop, creating challenging conditions. Major highways potentially affected include I-84, I-90.

— Thursday, July 23 through Monday, July 27: from southeastern California across the Southwest and Intermountain West into the central and southern Rockies and western Texas: Heavy precipitation may develop, creating localized flooding and difficult travel. Heavy precipitation is likely Thursday and Friday in eastern Arizona and western New Mexico and from southeastern Utah across much of Colorado into far northern New Mexico. Major highways potentially affected include I-8, I-10, I-15, I-25, I-40, I-70, I-76, I-80, I-84.

— Thursday, July 23 through Wednesday, July 29: from the central and southern Plains through the Lower Mississippi Valley and Southeast: Extreme heat may develop, creating challenging conditions. It is more likely Thursday and Friday from Oklahoma and Texas through Arkansas, Louisiana, Mississippi, and southwestern Alabama. Major highways potentially affected include I-4, I-10, I-20, I-30, I-35, I-40, I-55, I-65, I-70, I-75, I-85, I-95.

Confidence in the Extended Outlook:

Confidence is average to above average through the earlier part of the outlook, with generally good agreement on the large-scale pattern. Confidence decreases later because of uncertainty in how the pattern evolves and in precipitation across the central United States.

---

---

Your route’s weather may vary from the general forecast — check your exact trip

---

Weather Maps and National Outlooks

For current NWS hazards, severe-storm outlooks, heavy-rain risk, wind, smoke, heat/winter risk, and other automated weather graphics, visit:

Access to real-time road information:

Phone numbers and websites for road conditions in all 50 states. Courtesy of the Cheyenne WY Weather Forecast Office

---

Some useful links:

High-resolution radar

Your local forecast

Thank you for using RVWeather.