Weather Alert in Oklahoma
Red Flag Warning issued February 18 at 10:34PM CST until February 19 at 7:00PM CST by NWS Amarillo TX
AREAS AFFECTED: Cimarron; Dallam; Sherman; Hartley; Moore; Hutchinson; Oldham; Potter; Carson; Deaf Smith; Randall; Armstrong; Palo Duro Canyon
DESCRIPTION: The National Weather Service in Amarillo has issued a Fire Weather Watch for strong winds and low relative humidity, which is in effect from Friday afternoon through Friday evening. * WINDS...For the warning, west to northwest 15 to 25 mph with gusts up to 40 mph. For the watch, west to southwest 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...For the warning, as low as 7 percent. For the watch, as low as 11 percent. * TEMPERATURES...For the warning, in the lower 50s to mid 60s. For the watch, in the mid 50s to lower 60s. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * SEVERITY... FUELS (ERC)...70th-89th percentile...4 (out of 5). WEATHER...Critical...2 (out of 5). FIRE ENVIRONMENT...5 (out of 10).
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 will create favorable weather for rapid fire growth and spread. Avoid activities that promote open flames and sparks. A Fire Weather Watch means that the potential for critical fire weather conditions exists. Listen for later forecasts and possible red flag warnings.
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Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
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