Weather Alert in New Mexico
Flood Advisory issued September 6 at 9:37PM MDT until September 7 at 12:30AM MDT by NWS Albuquerque NM
AREAS AFFECTED: Bernalillo, NM; Valencia, NM
DESCRIPTION: * WHAT...Arroyo and small stream flooding caused by excessive rainfall is expected. * WHERE...A portion of central New Mexico, including the following counties, Bernalillo and northeastern Valencia. * WHEN...Until 1230 AM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 936 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause arroyo and small stream flooding. Up to 1.75 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. The potential exists for flash flooding to develop. - Some locations that will experience flooding include... Los Lunas, Belen, Valencia, Bosque Farms, Meadow Lake, El Cerro Mission, Isleta Pueblo, Rio Communities North, Tome and Los Chaves. - http://www.weather.gov/safety/flood
INSTRUCTION: Be especially cautious at night when it is harder to recognize the dangers of flooding. Both localized and distant heavy rainfall will create sudden and dangerous flows in arroyos and over low water crossings.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
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
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