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Flood Watch
ActiveCentral Beaufort Sea Coast; Eastern Beaufort Sea Coast; Western Arctic Plains; Howard Pass and the Delong Mountains; Central Arctic Plains
Status
In Progress
Started about 2 hours ago
Ends
Issued
Severity
Severe
Urgency
Future
Certainty
Possible
Details
* WHAT...Flooding caused by rain and snowmelt is possible.
* WHERE...Dalton Highway, Sag, Colville, Kuparuk Rivers and their tributaries.
* WHEN...Through Wednesday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Access to roads, airstrips, and low-lying infrastructure may be affected. High flows could lead to bank erosion that could threaten nearby roads.
* ADDITIONAL DETAILS... - Temperatures in the Brooks Range will be warming into the 60s and low 70s for highs and staying above freezing with low temperatures in the upper 30s to mid 40s over the next several days. The Arctic Plain and Coast will have temperatures ranging from about 40F to 60F with lows in the mid 30s to mid 40s.
Rain is expected from Sunday night through Wednesday morning across a wide swath of the Brooks Range and North Slope with amounts ranging from 0.5 to 1.0 inches.
Most of the remaining snowpack is in the foothills and mountains where temperatures and rainfall will be highest. The combination of snow melt and rainfall is increasingly likely to result in river rises.
Most of the ice on the larger rivers has already moved out which leaves more room to accommodate the snowmelt and rainfall. This contrasts with last year's late breakup when the snowmelt all entered the river systems while ice was mainly still in place.
- Http://www.weather.gov/aprfc
Data from the National Weather Service
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