Travel & RV Weather Forecast Wednesday 31 August

Heavy showers and thunderstorms may produce flash flooding in southwest and southern Texas through Thursday.
Excessive heat intensifies across southern and central CA and remains in place through the Labor Day weekend.
Signs of activity in the tropics, but no threat to Labor Day weekend travel plans.

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Pacific:

— Southern and much of interior Central CA; southern NV: Excessive Heat Warnings and Watches continuing through the Labor Day weekend and into early next week. High temperatures will range from 100-110 deg F in the San Joaquin Valley to 105-115 deg F in the Mojave and southern Deserts and 115-123 deg F in Death Valley. The heat spreads north into the Sacramento Valley starting this Saturday. I-5, I-8, I-10, I-15, I-40, CA-58, CA-99 among the highways impacted.

Mountain:

— Western AZ: Excessive Heat Warnings through this evening. High temperatures 105 – 113 deg F. I-8, I-10, I-40 impacted.

— Portions of south-central AZ: Excessive Heat Warning through this evening. High temperatures 105-111 deg F. I-10, I-17 impacted.

— Northeast and east-central CO: Isolated strong to severe thunderstorms with damaging wind gusts possible this afternoon and evening. I-76, I-80 potentially impacted.

Central:

— Northeast, central and southwest NE; northwest KS: Isolated strong to severe thunderstorms with damaging wind gusts possible this afternoon and evening. I-70, I-80 potentially impacted.

— Portions of western, southwest and southern TX, generally west of I-35 and along and south of I-10: Flash Flood Watches continue through Thursday for excessive rainfall. Locally 1-2 inches of rainfall are possible. Flooding threat greatest in the Big Bend region, including Big Bend National Park. I-10, I-20 (at the split) potentially impacted.

— Portions of central TN: Dense Fog Advisory this morning. I-24, I-40, I-65 impacted.

— Central MS and central AL: Dense Fog Advisories this morning. I-20, I-55, I-59, I-65 impacted.

Eastern:

— Northern and northwest NY and eastern ME: Isolated thunderstorms capable of damaging wind gusts and hail today. I-81, I-87, I-95 potentially impacted.