Weather Alert in Alaska
Hydrologic Outlook issued July 1 at 12:13PM AKDT by NWS Anchorage AK
AREAS AFFECTED: Northern Alaska Peninsula; Bristol Bay Borough (Naknek and King Salmon); Northern Bristol Bay Coast; Inland Bristol Bay; Lake Iliamna / Nila Vena / Nanvarpak
DESCRIPTION: ESFAFC Over the last 24 hours, abundant tropical moisture has been drawn north across Southwest Alaska and the Alaska Peninsula. Areas north of Dillingham have experienced moderate rainfall with some locations receiving an estimated one to two inches. An additional one to two inches of precipitation is expected through Wednesday. Precipitation totals of this magnitude suggest a 5-10 year return interval for this area. Water levels on the Nuyakuk River near Dillingham have been steadily rising for the past several days and this river is likely bankfull in areas. The river gage currently reads 9.48 feet and is expected to continue rising slowly for several days as high waters from the recent rains works its way through the Wood-Tikchik Lake system. Residents and river users should anticipate high water levels and are advised to monitor the situation. Reports on river conditions may be sent to the river forecast center by calling 1-800-847-1739. Locations affected include: Nuyakuk River, Wood River, Nushagak River, and ungaged rivers surrounding the greater Bristol Bay area.
INSTRUCTION: N/A
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Weather Topic: What are Altostratus Clouds?
Home - Education - Cloud Types - Altostratus Clouds
Next Topic: Cirrocumulus Clouds
Altostratus clouds form at mid to high-level altitudes
(between 2 and 7 km) and are created by a warm, stable air mass which causes
water vapor
to condense as it rise through the atmosphere. Usually altostratus clouds are
featureless sheets characterized by a uniform color.
In some cases, wind punching through the cloud formation may give it a waved
appearance, called altostratus undulatus. Altostratus clouds
are commonly seen with other cloud formations accompanying them.
Next Topic: Cirrocumulus Clouds
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
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