Weather Alert in South Dakota
Red Flag Warning issued March 17 at 9:23PM MDT until March 18 at 7:00PM MDT by NWS Rapid City SD
AREAS AFFECTED: Southern Black Hills; Custer County Plains; Pine Ridge Area; Northern Campbell
DESCRIPTION: ...CRITICAL FIRE WEATHER CONDITIONS WEDNESDAY ACROSS PORTIONS OF NORTHEASTERN WYOMING AND FAR SOUTHWESTERN SOUTH DAKOTA... .Very warm temperatures Wednesday with highs in the upper 60s into mid 70s across northeastern Wyoming and southwestern South Dakota. These anomalously warm temperatures coupled with gusty west-northwest winds (gusts 25 to 40 mph) and relative humidity falling to around 15 percent will result in critical fire weather conditions Wednesday afternoon and early evening. The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 10 AM to 7 PM MDT Wednesday. * AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 321 Southern Black Hills, 325 Custer County Plains and 326 Pine Ridge Area. * WINDS...West-northwest 10 to 20 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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Weather Topic: What are Cirrostratus Clouds?
Home - Education - Cloud Types - Cirrostratus Clouds
Next Topic: Cirrus Clouds
Cirrostratus clouds are high, thin clouds that form above
20,000 feet and are made mostly of ice crystals. They sometimes look like giant
feathers, horse tails, or curls of hair in the sky.
These clouds are pushed by the jet stream and can move at high speeds reaching
100 mph.
What do they indicate?
They indicate that a precipitation is likely within 24 hours.
Next Topic: Cirrus Clouds
Weather Topic: What is Condensation?
Home - Education - Precipitation - Condensation
Next Topic: Contrails
Condensation is the process which creates clouds, and therefore
it is a crucial process in the water cycle.
Condensation is the change of matter from a state of gas into a state of liquid,
and it happens because water molecules release heat into the atmosphere and
become organized into a more closely packed structure, what we might see as
water droplets.
Water is always present in the air around us as a vapor, but it's too small for
us to see. When water undergoes the process of condensation it becomes organized
into visible water droplets. You've probably seen condensation happen before on the
surface of a cold drink!
Next Topic: Contrails
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