Weather Alert in Idaho

Recent Locations: Shiloh, GA   Laredo, TX   Rupert, ID  

Red Flag Warning issued July 8 at 1:07PM MDT until July 9 at 9:00PM MDT by NWS Pocatello ID

AREAS AFFECTED: Middle Snake River Valley/Twin Falls BLM north of the Snake River; Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River

DESCRIPTION: ...RED FLAG WARNING FOR LOW HUMIDITY AND GUSTY WIND WEDNESDAY AFTERNOON AND EVENING IN EASTERN IDAHO... .A dry cold front will approach Idaho from the west on Wednesday. This will have the effect of increasing the wind prior to the arrival of the cold air on Wednesday night. Wednesday afternoon and evening will see the combination of humidity below 15 percent and wind gusts of 25 or 30 mph produce dangerous conditions for areas where this occurs and where fuels are receptive to fire. The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 3 PM to 9 PM MDT Wednesday. * AFFECTED AREA...Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River and Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River. * WINDS...West 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...When these weather conditions combine with critically dry fuels, extreme fire behavior, including intensity and spread rate, can result.

INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain.

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Weather Topic: What is Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds

Weather Topic: What is Freezing Rain?

Home - Education - Precipitation - Freezing Rain

Freezing Rain Next Topic: Graupel

Freezing rain is a condition where precipitation which has fallen in the form of water droplets reaches temperatures which are below freezing and freezes upon coming into contact with surface objects. The result of this precipitation is a glaze of ice which can be damaging to plants and man-made structures. A severe onset of freezing rain which results in a very thick glaze of ice is known as an ice storm.

Next Topic: Graupel

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