Travel Alerts: Weather-Related Impacts for Your Route

Planning to travel today or this week? Here’s what could impact your route – and what you should do.

Severe storms and flash-flood concerns target Texas this afternoon and evening.
Dangerous heat builds in the Southwest deserts through Tuesday
Dense fog slows morning travel across the Gulf Coast and Southeast

What this means for your trip

RVers crossing central or north Texas today should watch departure timing closely because severe storms and flash-flood concerns late this afternoon into early tonight. IF parked this evening in this region, make sure you know where your storm shelter is, and be aware of your vulnerability to flash flooding.
Desert travelers in southern California and Arizona should avoid peak-afternoon travel where possible because heat risk will be unusually high.
Morning travel across the Gulf Coast states and parts of the Southeast may be slower due to dense fog and reduced visibility.
High-profile vehicles crossing the Guadalupe Mountains should expect difficult driving from strong winds tonight.

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

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Want a deeper look at conditions?

Below are the significant weather alerts and travel impacts across the country for the next 2-3 days.

Check out the extended forecast through May 18th at the end of the short-term forecast.

Weather Impacts Pacific:

— Southern California and lower Colorado River deserts: Extreme Heat Warnings beginning late this morning through Monday evening, with afternoon temperatures generally 104 to 114 degrees across Imperial County, the Coachella Valley, San Diego County Deserts, San Gorgonio Pass near Banning, Parker Valley, Yuma, Chuckwalla Valley, Imperial Valley, and Palo Verde Valley. I-8, I-10, US-60, US-95, CA-62, CA-78, CA-86 impacted.

— Southern California Inland Empire, northern and central California interior valleys, and the San Joaquin Valley: Heat Advisories Monday morning through Tuesday evening, with temperatures 95 to 102 degrees.

Weather Impacts Mountain:

— South-central Arizona: Extreme Heat Warning beginning late this morning through Tuesday evening, with afternoon temperatures 104 to 110 degrees and major heat risk around the Phoenix metro area. I-10, I-17, US-60 impacted.

— Guadalupe Mountains of west Texas and southeast New Mexico: High Wind Warning beginning early evening through Monday morning, with northeast winds 35 to 45 mph and gusts up to 60 mph creating difficult travel for RVs and high-profile vehicles. US-62, US-180 impacted.

— Central and southeast New Mexico: Severe thunderstorms are possible this afternoon and evening. I-25, I-40, US-54, US-60, US-62, US-64, US-70, US-82, US-84, US-180, US-285, US-380, US-550 potentially impacted.

Weather Impacts Central:

— Much of Texas, central and southern Oklahoma, Louisiana, Mississippi, most of Arkansas, and western Alabama: Severe thunderstorms are possible this afternoon and evening, with large hail over 2 inches and severe wind gusts potentially over 75 mph across central and north Texas. More sporadic damaging wind and large hail expected farther east into the lower Mississippi Valley. The greatest risk of severe weather will be across central and northern Texas. I-2, I-10, I-12, I-14, I-20, I-22, I-30, I-35, I-37, I-40, I-44, I-45, I-49, I-55, I-59, I-69, I-69C, I-69E potentially impacted.

— Parts of central Texas: Flash flooding is possible today into early Monday, with 2-4 inches of rainfall across portions of central and north Texas becoming likely; low-water crossings and flood-prone roads may become difficult or unsafe. This includes the I-35 corridor between Austin and the DFW Metroplex. I-14, I-20, I-30, I-35, I-45, US-67, US-77, US-79, US-84, US-180, US-190, US-281, US-287 potentially impacted.

— Central and southeast Alabama, and much of Florida Panhandle: Isolated severe storms are possible Monday afternoon, with locally damaging wind gusts and hail possible as storms develop ahead of a cold front and along coastal convergence boundaries. I-10, I-65, I-85, US-19, US-27, US-29, US-80, US-82, US-84, US-98, US-231, US-280, US-431 potentially impacted.

— Southeast Kansas and central Missouri: Isolated severe storms are possible Tuesday afternoon, with strong wind gusts and hail possible, especially where instability develops ahead of the front. I-35, I-44, I-49, I-64, I-70, I-72 potentially impacted.

— Southeast Arkansas, eastern Louisiana, Mississippi, Alabama, the western Florida Panhandle, western Georgia, and southern middle Tennessee: Dense Fog Advisory through late morning, with visibility ranging from less than one-half mile to one-quarter mile or less in spots, creating hazardous low-visibility driving for RVs and tow vehicles. I-10, I-12, I-20, I-22, I-55, I-59, I-65, I-85 impacted.

Weather Impacts Eastern:

— Northern Michigan Lower Peninsula: Freeze Watch beginning late tonight through Monday morning, with sub-freezing temperatures as low as 30 degrees possible and hard freeze temperatures as low as 28 degrees possible.

— Greater New York City metropolitan area: Locally dense fog through late morning, with visibility less than one-quarter mile in spots creating hazardous low-visibility driving. I-78, I-80, I-87, I-95, US-202 impacted.

— East Tennessee, southwest Virginia, and southwest North Carolina: Dense fog through late morning, mainly near lakes and rivers, with visibility dropping quickly to less than one-quarter mile before lifting mid-morning. I-24, I-26, I-40, I-75, I-81 impacted.

— North Georgia Mountains into central Georgia and north Florida into southeast Georgia: Patchy dense fog through midday, with visibility below one mile at times. I-10, I-16, I-20, I-24, I-59, I-75, I-85, I-95 impacted.

— Central, north central, northwest, and west central Georgia: Dense Fog Advisory through late morning, with visibility one quarter mile or less creating hazardous low-visibility driving. I-16, I-20, I-75, I-85, US-19, US-23, US-27, US-78, US-280 impacted.

— Central and northeast Florida Peninsula and parts of southeast Georgia: Severe thunderstorms are possible this afternoon and evening, with sporadic damaging wind and large hail possible. I-4, I-10, I-75, I-95, US-1, US-17, US-19, US-23, US-25, US-27, US-41, US-84, US-98, US-301 potentially impacted.

— Much of Georgia, central and northern Florida Peninsula, much of South Carolina, and southeastern North Carolina: Isolated severe storms are possible Monday afternoon, with locally damaging wind gusts and hail possible as thunderstorms form ahead of a cold front. I-4, I-10, I-16, I-20, I-26, I-40, I-74, I-75, I-77, I-85, I-95 potentially impacted.

Outlook through May 16th:

— Tuesday, May 12: much of Michigan Lower Peninsula: Frost or freeze concerns may create challenging conditions for early season RVers. Major highways potentially affected include I-75.

— Tuesday, May 12: portions of west-central Virginia, eastern West Virginia, far-western Maryland, central and western Pennsylvania, and western New York: Frost or freeze concerns may create challenging conditions for early season RVers. Major highways potentially affected include I-64, I-70, I-76, I-79, I-80, I-90.

— Tuesday, May 12: Much of Upstate New York: Frost or freeze concerns may create challenging conditions for early season RVers. Major highways potentially affected include I-81, I-87, I-90.

— Tuesday, May 12 through Wednesday, May 13: most of Vermont, much of New Hampshire, and most of interior Maine west of I-95: Frost or freeze concerns may create challenging conditions for early season RVers. Major highways potentially affected include I-91, I-95.

Extended Outlook May 17th through May 23rd:

— Sunday, May 17 through Monday, May 18: from Texas and the central Plains into the Mississippi, Ohio, and Tennessee Valleys: Heat may develop, which could create challenging conditions. 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, I-71, I-74, I-75, I-80.

— Sunday, May 17 through Tuesday, May 19: portions of western Oregon and coastal California, north of Santa Barbara: Strong winds may develop, which could create hazardous crosswinds for high-profile vehicles. Major highways potentially affected include I-5, I-80.

— Sunday, May 17 through Tuesday, May 19: from the northern and Rockies into the northern and central Plains: Strong winds may develop, which could create hazardous crosswinds for high-profile vehicles, especially over higher terrain including Homestake Pass, Bozeman Pass, and Eisenhower Tunnel. Major highways potentially affected include I-15, I-25, I-29, I-35, I-70, I-76, I-80, I-90, I-94.

— Sunday, May 17 through Wednesday, May 20: from Texas and the central Plains into the Lower Mississippi Valley and western Illinois: Heavy rain may develop, which could create localized flooding and reduced visibility. Major highways potentially affected include I-10, I-20, I-29, I-30, I-35, I-40, I-55, I-64, I-70.

Forecast Confidence for the Extended Outlook:

Confidence is average for the earlier period, with generally good large-scale agreement. Confidence decreases later in the outlook because of a more complex transitional pattern and greater uncertainty in how the western U.S. pattern evolves.

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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