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

• Repeated heavy rain threatens travel across Utah, Colorado, and Arizona today, with flash flooding possible near saturated ground, burn scars, dry washes, and low crossings.
• The tropical disturbance south of the Louisiana Coast is likely to become a tropical depression or storm later today or tonight. Heavy, flooding rains will be the primary hazard, especially along the upper Texas Coast.
• Heat affects a broad area from Kansas and Oklahoma through the Mississippi and Ohio Valleys, with heat-index values up to 110 degrees; the heat will likely persist through Friday.

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.

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Significant travel weather for the next 2-3 days.

Weather Impacts Pacific:

— South-central Oregon and northern California: A Red Flag Warning today brings wind gusts 30 to 35 mph that may support rapid fire spread. I-5, US-97, US-395, CA-3, CA-96, CA-139 impacted.

— Eastern Nevada: Isolated severe thunderstorms are possible later this afternoon into tonight, with damaging wind and hail possible. I-11, I-15, US-6, US-50, US-93, US-95 potentially impacted.

Weather Impacts Mountain:

— Much of Utah, northern, western and central Colorado, much of Arizona, including Zion and Capitol Reef National Parks, and western New Mexico: Flood and Flash Flood Watches today bring repeated heavy rain over saturated ground, with flash flooding and debris flows possible near burn scars, dry washes, slot canyons, and low crossings. Rainfall rates of more than 1 inch per hour and isolated totals of 1 to 3 inches are possible across this region. Greatest risk of dangerous flash flooding is across Utah. I-8, I-10, I-15, I-17, I-19, I-40, I-70 potentially impacted.

— Western and central Utah, and northwestern Arizona: Isolated severe thunderstorms are possible later this afternoon into tonight, with damaging wind and hail possible. I-11, I-15, I-40, I-70, US-6, US-50, US-89, US-89A, US-93, US-180 potentially impacted.

— Eastern Colorado: Isolated severe thunderstorms are possible later this afternoon into tonight, with damaging wind and hail possible. I-25, I-70, I-76, I-80, US-6, US-24, US-30, US-34, US-36, US-40, US-50, US-85, US-160, US-287, US-385, US-400 potentially impacted.

Weather Impacts Central:

— Northern and central North Dakota: Wind Advisories today with gusts up to 55 mph. I-29, US-2, US-52, US-83, US-85, US-281 impacted.

— Southeastern South Dakota, central and eastern Nebraska, southern Wisconsin and adjacent northern Illinois, northern and central Iowa and adjacent southern Minnesota: Isolated severe thunderstorms are possible Tuesday, with damaging wind and hail possible. I-29, I-35, I-39, I-41, I-43, I-55, I-57, I-80, I-88, I-90, I-94 potentially impacted.

— Southwest, central and northeast Nebraska, northwestern Kansas, far-southern Minnesota, central and southern Wisconsin and adjacent northern Illinois, and northern and central Iowa: Isolated severe thunderstorms are possible later this afternoon into tonight, with damaging wind and hail possible; hail larger than 1 inch may occur in Wisconsin. I-29, I-35, I-39, I-41, I-43, I-70, I-76, I-80, I-88, I-90, I-94 potentially impacted.

— Northeast and eastern Kansas, northeastern Oklahoma, southern Iowa, Missouri, western, central and southern Illinois and adjacent southwest Indiana, western Kentucky and Tennessee, central and eastern Arkansas, northeastern Louisiana, and western Mississippi: Heat Advisories through Friday, with heat-index values up to 110 degrees.

— Southern Texas: Heat-index values may reach 105 to 110 degrees. I-2, I-69, I-69C, I-69E, US-77, US-83, US-281 impacted.

— Southeastern Texas and upper Texas Coast: Flash flooding may occur Tuesday and Wednesday, in association with the tropical disturbance currently south of Louisiana and moving towards the Texas coast. Rainfall totals may reach 2 to 6 inches. I-10, I-45 potentially impacted.

— Northeastern Minnesota near Duluth: A Dense Fog Advisory through mid-morning may reduce visibility to one-quarter mile or less and make driving difficult. I-35, US-2, US-53, MN-61 impacted.

Weather Impacts East:

—Michigan’s northern Lower Peninsula: Isolated severe thunderstorms are possible later this afternoon into tonight, with damaging wind and hail possible. I-75, US-2, US-8, US-10, US-23, US-31, US-41, US-131, US-141 potentially impacted.

— Southern and central Michigan, northeastern Indiana, northern and eastern Ohio, northern West Virginia, southwestern Connecticut, western, central and southern New York, New Jersey, Pennsylvania, Maryland, the District of Columbia, Delaware, and northern and eastern Virginia: Scattered severe thunderstorms are possible Tuesday, with damaging winds, large hail, and an isolated tornado. The greatest risk of severe weather will be across western New York, much of New Jersey, and much of Pennsylvania. I-64, I-66, I-68, I-69, I-70, I-71, I-75, I-76, I-77, I-78, I-79, I-80, I-81, I-83, I-84, I-86, I-87, I-88, I-90, I-91, I-94, I-95, I-96, I-97, I-99 potentially impacted.

— Michigan’s central and southern Lower Peninsula, northern and eastern Ohio, western and southern New York, New Jersey, Pennsylvania, Maryland, the District of Columbia, northern Virginia, and Delaware: Scattered severe thunderstorms are expected Wednesday, with damaging winds and hail the main threats. I-66, I-68, I-69, I-70, I-71, I-75, I-76, I-77, I-78, I-79, I-80, I-81, I-83, I-84, I-86, I-87, I-88, I-90, I-94, I-95, I-96, I-97, I-99 potentially impacted.

— Vermont and northern New York: Widespread fog this morning, locally dense beyond the usual river valleys, may sharply reduce visibility. I-87, I-89, I-91, I-93, US-2, US-4, US-5, US-7, US-11 impacted.

— Western Connecticut, central and southern New York, northern New Jersey, and northeastern Pennsylvania: Flash flooding is possible Wednesday as thunderstorms produce rainfall rates up to 2.5 inches per hour and local totals near 5 inches, potentially flooding roads and low-lying areas. I-78, I-80, I-81, I-84, I-86, I-87, I-88, I-90, I-91, I-95 potentially impacted.

Tropical Weather Outlook for the next 7 days:

— Tropical disturbance AL97, 100 miles south of the southern coast of Louisiana, has a 70 percent chance of formation during the next 48 hours, with a short-lived tropical depression or storm likely before it reaches the Upper Texas or southwestern Louisiana coast tonight or Tuesday morning. Locally heavy rainfall may slow travel in those coastal areas during the next several days.

— Hurricane Karina is not currently expected to disrupt road travel in the continental United States. However, life-threatening surf and rip currents are possible along Southern California today through midweek.

Extended Hazard Outlook

Outlook Wednesday September 2nd through Sunday September 6th:

— Wednesday, September 2 through Sunday, September 6: From the southern Plains through the Lower Mississippi Valley and Southeast: Hazardous heat may create challenging conditions. Major highways potentially affected include I-10, I-20, I-30, I-35, I-40, I-55, I-65, I-74, I-75, I-85, I-87, I-95.

— Wednesday, September 2 through Friday, September 4: Parts of the central Plains, Midwest, Ohio Valley, and Tennessee Valley: Hazardous heat may create challenging conditions. The heat extends farther east through Ohio into the central Appalachians mainly Wednesday and Thursday. Major highways potentially affected include I-29, I-35, I-40, I-55, I-64, I-65, I-70, I-71, I-74, I-75, I-80.

— Wednesday, September 2 through Thursday, September 3: North Carolina, Virginia, Maryland, Washington, D.C., and nearby parts of West Virginia and Delaware: Hazardous heat may create challenging conditions. Major highways potentially affected include I-40, I-64, I-70, I-74, I-81, I-85, I-95.

— Wednesday, September 2 through Thursday, September 3: Pennsylvania and the Mid-Atlantic, extending into northeastern Ohio and southern New York: Severe weather may create hazardous travel conditions Wednesday from northeastern Ohio through Pennsylvania and the Mid-Atlantic into southern New York, and Thursday from northeastern Virginia and West Virginia through Pennsylvania and the central Mid-Atlantic. Major highways potentially affected include I-70, I-76, I-79, I-80, I-81, I-84, I-87, I-95.

— Wednesday, September 2: New York and much of New England, extending into northeastern Pennsylvania and northwestern New Jersey: Heavy rain may create localized flooding and reduced visibility. Major highways potentially affected include I-81, I-84, I-87, I-90, I-91, I-95.

Extended Outlook September 7th through 13th:

— Monday, September 7 through Thursday, September 10: From southeastern California, Arizona, New Mexico, and eastern Colorado through the Plains, Midwest, Ohio and Tennessee valleys, and Southeast: Extreme heat may develop, creating challenging conditions. Major highways potentially affected include I-8, I-10, I-20, I-25, I-29, I-30, I-35, I-40, I-55, I-64, I-65, I-70, I-71, I-74, I-75, I-76, I-79, I-80, I-81, I-85, I-95.

Confidence in the Extended Outlook:

Confidence is average for the earlier period, with generally good large-scale agreement and only minor differences in smaller-scale details. Confidence decreases to much below average later because weak height anomalies and growing uncertainty limit predictability.

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

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Weather Maps and National Outlooks

For current NWS hazards, severe-storm and hurricane outlooks, heavy-rain risk, wind, smoke, heat/winter risk, and other always-updating 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

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