Weather Alert in Colorado
Special Weather Statement issued February 18 at 12:38PM MST by NWS Grand Junction CO
AREAS AFFECTED: Roan and Tavaputs Plateaus; Grand Valley; Uncompahgre Plateau/Dallas Divide; Paradox Valley/Lower Dolores River; Tavaputs Plateau; Arches/Grand Flat; La Sal and Abajo Mountains
DESCRIPTION: At 1238 PM MST, Doppler radar was tracking strong thunderstorms along a line extending from 31 miles north of Castle Valley to 14 miles west of Slick Rock. Movement was east at 40 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Castle Valley, La Sal, Nucla, Naturita, Slick Rock, Paradox, Vancorum, Bedrock, Gateway, Summit Point, Mack, Cisco, and Uravan. This includes the following highways... Interstate 70 in Colorado between mile markers 1 and 15. Interstate 70 in Utah between mile markers 202 and 231. Utah 128 between mile markers 18 and 44. Colorado 90 between mile markers 1 and 33. Colorado 141 near mile marker 24, between mile markers 44 and 51, and between mile markers 57 and 132.
INSTRUCTION: If outdoors, consider seeking shelter inside a building.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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