Travel & RV Weather Forecast Tuesday 20 September

Heavy rains and some flash flooding likely this afternoon through Thursday across the Four Corners Region.
Isolated severe thunderstorms late this afternoon and evening across the Upper Great Lakes.
Flash Flood potential today for the central Sierra Nevada mountains of California.

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Pacific:

— CA central Sierra Nevada Mountains: Flood Watch through this evening. Be especially alert if you are near or downstream of any burn scars. I-80, US-395 potentially impacted.

— Eastern NV: Strong winds this afternoon. Gusts 30-40 mph. I-15, I-80, US-50 impacted.

— Eastern NV: Strong winds Wednesday afternoon. Gusts 30-40 mph. I-15, I-80, US-50 impacted.

Mountain:

— Southeast and east-central UT; west-central and southwest CO; northwest and west-central NM; north-central; northeast and east-central AZ: Flood Watches from midday today through Thursday evening. 1-3 inches of rain likely in some locations. I-17, I-40, I-70 potentially impacted.

— South-central NM: Flood Watch this afternoon and evening.

Central:

— Northern WI and western MI Upper Peninsula: Isolated strong to severe thunderstorms late this afternoon and evening may produce large hail. I-94, US-2 potentially impacted.

Eastern:

— Southern IN and southwest OH: Dense Fog Advisories this morning. I-65, I-71, I-74, I-75 impacted.

— Central and northeast OH; northwest PA; western NY: Severe thunderstorms with damaging winds and large hail are possible on Wednesday. I-70, I-71, I-76, I-77, I-79, I-80, I-81, I-88, I-90, I-99, OH and PA Turnpikes potentially impacted.