Travel & RV Weather Forecast Thursday 18 August

Significant flash flooding probable Friday and Saturday over southern Arizona and southwest New Mexico.
Heavy rains spread from the Southwest into the Southern Plains Sunday and into early next week.
Keeping an eye on the southwestern Gulf of Mexico for possible tropical development early next week.

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Pacific:

— Central and east-central WA: Excessive Heat Warning today through Friday. High temperatures upper 90’s to 105 deg F. I-90 impacted.

Mountain:

— Southwest and south-central UT: Flood Watches through tonight from monsoon storms. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. I-15 potentially impacted.

— Most of AZ and NM; far-west TX: Flood Watches Friday and Saturday from monsoon storms. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Low-water crossings may be flooded. I-8, I-10, I-17, I-19, I-25, I-40 potentially impacted.

Central:

— Watching to see if a tropical disturbance enters the southwest Gulf of Mexico early next week. Too soon to say what if any impacts this system may bring to the Gulf Coast. Weekend RV plans look to be safe.

— Be prepared for heavy rains to spread from west to east across the Southern Plains Sunday into early next week.

Eastern:

— No significant weather impacts to RV travel today or Friday.