Colorado and Utah Smoke Dispersal and Ventilation Rates

Heat Continues for the East and South-Central U.S.; Strong to Severe Storms Across the Mid-Atlantic and Northeast

The extremely dangerous heat wave continues across the East Coast and much of the South-Central U.S. today. Record high temperatures are expected for some areas especially across the Mid-Atlantic where extreme heat risk conditions reside. There is a Slight Risk (level 2 of 5) of severe thunderstorms today for the northern Mid-Atlantic into portions of southern New England. Read More >

Fire Weather Dashboard

The link above is configured to display smoke dispersal categories as shown here:

	Smoke Dispersal	Vent. Rate, knot-feet (x1000)
	Excellent	150 or greater
	Very Good	100 to 149.99
	Good	60 to 99.99
	Fair	40 to 59.99
	Poor	less than 40

Smoke Dispersal

Vent. Rate, knot-feet (x1000)

Excellent

150 or greater

Very Good

100 to 149.99

Good

60 to 99.99

Fair

40 to 59.99

Poor

less than 40

Ventilation Rate = Transport Wind (kts) x Mixing Height (ft)