Weather Alert in Colorado

Recent Locations: Durand, IL   Duffield, VA   Castle Rock, CO  
Current Alerts for Castle Rock, CO: Fire Weather Watch

Fire Weather Watch issued August 12 at 2:33PM MDT until August 14 at 10:00PM MDT by NWS Denver CO

AREAS AFFECTED: Jackson County Below 9000 Feet; South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet; Grand and Summit Counties Below 9000 Feet; Central and Southeast Park County; Larimer and Boulder Counties Between 6000 and 9000 Feet; Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet; West Jackson and West Grand Counties Above 9000 Feet; South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet

DESCRIPTION: The National Weather Service in Denver has issued a Fire Weather Watch for thunderstorms, which is in effect from Thursday afternoon through Thursday evening. * AFFECTED AREA...Fire Weather Zones 211, 212, 213, 214, 215, 216, 217 and 218. * TIMING...From Thursday afternoon through Thursday evening. * WINDS...Southwest 5 to 15 mph, but gusts to 40 mph in/near any showers and thunderstorms. * IMPACTS...Conditions will be favorable for new wildfire starts due to lightning from thunderstorms producing little rainfall. Also, avoid outdoor burning and any activity that may produce a spark. * Thunderstorms...Dry thunderstorms (storms with lightning but little rainfall) will be possible Thursday afternoon and evening.

INSTRUCTION: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

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Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

Weather Topic: What are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain

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