Travel & RV Weather Forecast Tuesday 23 August

The widespread heavy rain and flood event across the Southern U.S. continues as it advances slowly across the Lower Mississippi Valley.
Dangerous heat in interior southern California in the valleys northeast of Los Angeles.
Monsoon rains likely strengthen over western Arizona Wednesday.

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Pacific:

— Excessive Heat Warning interior Southern CA Antelope and Lucerne Valleys today. Temperatures could reach 108 deg F. I-15 impacted.

Mountain:

— Portions of north-central, west-central and southwest NM: Flood Watches today 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-25 potentially impacted.

Central:

— Central TX around the Austin / San Antonio region: Flood Watches through Wednesday evening for excessive rainfall. I-10, I-35 potentially impacted.

— Eastern TX; southern AR; northern and central LA; west-central MS: Flood Watches through Tuesday for excessive rainfall. Heaviest rainfall and flooding potential greatest over northern LA and adjacent west-central MS. I-20, I-30, I-45, I-49, I-55 potentially impacted.

Eastern:

— East-central PA; much of northern and central NJ: Dense Fog Advisories this morning. Major highways impacted include I-78, I-80, I-95, I-287, I-476.