Travel & RV Weather Forecast Monday 5 September

** Heads Up ** Potential for significant flash flooding event over parts of the New York lower Hudson Valley and southern New England, starting this afternoon and continuing through tonight. Up to 7 inches of rainfall are possible in spots, with many areas seeing 1-4 inches of rain. Be very careful towing or camping near streams and creeks. Seek higher ground if you see the water levels rising and do not drive or tow across flooded roads, especially at night.

Heavy rains spread into Pennsylvania, New York and southern New England today and tonight.
Excessive heat continues through midweek across much of California.
Hurricane Danielle and Tropical Storm Earl pose no threat to the U.S.

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Pacific:

— Most of CA except the immediate coast and mountains; southern NV: Excessive Heat Warnings and Watches continue through Wednesday. High temperatures will range from 105-115 deg F in most locations. I-5, I-8, I-10, I-15, I-40, I-80, CA-58, CA-99 among the highways impacted.

Mountain:

— Northwest AZ and south-central UT, Grand Canyon below 4000 feet and Glen Canyon below 5000 feet: Excessive Heat Warnings through Wednesday. Temperatures may reach 105 deg F in Glen Canyon and up to 115 deg F in Phantom Ranch, Grand Canyon.

— Portions of south-central AZ: Excessive Heat Warning through Wednesday. High temperatures 105-110 deg F. I-10, I-17 impacted.

— Eastern ID; northern and western MT; northwest and west-central WY: Strong winds this afternoon with gusts to 30 mph. I-15, I-90 impacted.

Central:

— Portions of eastern NE: Dense Fog Advisories this morning. I-80 impacted.

— Central TX between I-10 and I-20, west of I-35: Marginal risk of severe thunderstorms this afternoon with a few damaging wind gusts possible.

Eastern:

— Eastern and central KY and adjacent IN; eastern and central TN and adjacent northern MS; most of WV and adjacent southeast OH; western MD; western and southwest VA; western NC; extreme west SC; northern and northwest GA: Flood Watches through tonight for excessive rainfall. Major highways potentially impacted include I-24, I-40, I-59, I-64, I-65, I-68, I-71, I-75, I-77, I-79, I-81, I-85

— Most of PA and the adjacent southern tier of NY; NY lower Hudson Valley; most of NJ; CT; RI; eastern MA; southern and eastern NH; southern and coastal ME: Flood Watches through Tuesday. 3-5 inches of rainfall expected over southern New England with localized amounts up to 7 inches possible. Rainfall rates throughout this region of 1-2 inches per hour can be expected. If you are camping near any small streams, creeks or low-lying areas, pay close attention to the forecast, water levels, any flood warnings, and directions from your local emergency management officials. Seek higher ground and do not attempt to drive across flooded roadways. Major highways potentially impacted include I-76, I-79, I-80, I-81, I-83, I-84, I-87, I-88, I-89, I-91, I-95, NY Thruway, Mass Pike, NJTP and arteries in and around New York City.