Hot and Windy in the West Increasing Fire Danger, Freeze Over Northeast

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Tropical Storm Sally has moved into the Atlantic, a cold front brings a freeze to the Northeast, while hot and windy conditions in the west have triggered red flag warnings and air quality alerts in at least 9 states for Friday.

Hot and windy conditions in the West ramp up fire danger

Parts of the west will see hot and windy conditions today which will move the smoke from wildfires eastward, but also make conditions favorable in fanning the flames of existing wildfires. Rain is expected over portions of the Northeast which could assist firefighting efforts there.

The National Weather Service (NWS) has issued red flag warnings for at least nine states, and air quality alerts for at least nine states in the west on Friday. Air quality will be hazardous for the entirety of Washington, Oregon, Idaho, as well as most of Montana, Wyoming, and Colorado today.

Red flag warnings: northeastern, east-central and southeastern California; western, central and southern Nevada; northwestern Arizona; Utah; southwestern Idaho; eastern Oregon; southwestern Montana; southeastern Wyoming; western Nebraska.

Air quality alert: Washington; Oregon; Idaho; western, central and southeastern and western Montana; western South Dakota; western, central and northeastern Wyoming; western Nebraska; central, north-central and eastern Colorado; south-central and southern California; northern and northwestern Nevada.

Northern latitudes saw frost and freeze warnings overnight, similar conditions forecast for Saturday

The National Weather Service (NWS) issued frost and freeze warnings for portions of the north-central US, Ohio Valley, and northeast overnight. Similar conditions are forecast for Saturday, particularly for the Northeast and parts of the Northwest and the northern Rockies.

Freeze warnings were issued in Minnesota, Wisconsin, New York, and Maine. Frost advisories were issued in North Dakota, Minnesota, Wisconsin, Michigan, Indiana, Ohio, Pennsylvania, New York, Massachusetts, Vermont, and Maine.

US forecast: September 18, 2020

West: San Francisco 68, partly cloudy; Los Angeles 93, mostly sunny; Reno 76, partly cloudy; Las Vegas 103, windy; Salt Lake City 87, mostly cloudy; gender 86, mostly sunny.

Northwest & Northern Rockies: Seattle 66, rain; Medford 71, rain; Boise 76, rain; Cut Bank 75, mostly sunny; Billings 82, mostly sunny, Minot 76, sunny; Rapid City 77, sunny.

Southwest: Phoenix 106, sunny; Albuquerque 84, sunny; El Paso 87, sunny; San Antonio 89, mostly sunny; Brownsville 82, thunderstorms.

Central & Upper Midwest: Lubbock 84, sunny; Dallas 87, partly cloudy; Oklahoma City 82, sunny; Kansas City 73, sunny; Minneapolis 62, sunny.

Ohio Valley: Chicago 60, partly cloudy; St. Louis 73, sunny; Detroit 59, mostly sunny; Cincinnati 68, sunny.

South: Houston 88, cloudy; New Orleans 82, rain; Memphis 81, partly cloudy; Atlanta 81, partly cloudy; Charlotte 79, cloudy; Jacksonville 85, partly cloudy; Tampa 89, partly cloudy; Miami 89, thunderstorms.

East: Norfolk 73, rain; Washington, D.C. 74, partly cloudy; Buffalo 59, mostly sunny; New York City 72, partly cloudy; Boston 61, cloudy; Caribou 58, mostly sunny.