In effect from Thursday, Dec 04 2025 3:03 PM - Saturday, Dec 06 2025 4:15 PM
Issued by NWS Pendleton OR
ESFPDT
A series of weather systems will bring rain and rising river levels
to the area, especially the Washington Cascades, through this
weekend. Another system fed by a strong atmospheric river early next
week will bring heavier rain amounts. Currently a few locations on
the Naches and Yakima Rivers are forecast to reach action stage
starting Tuesday and Wednesday but the chances of reaching minor
flood stage are very low.
Areas Impacted:
Yakima Valley
Upper Slopes of the Eastern Washington Cascades Crest
Lower Slopes of the Eastern Washington Cascades Crest
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Hydrologic Outlook
In effect from Thursday, Dec 04 2025 2:09 PM - Friday, Dec 05 2025 12:00 PM
Issued by NWS Chicago IL
ESFLOT
Very cold temperatures tonight will be favorable for additional ice
on rivers and tributaries. Reports from river ice spotters and river
gauges indicate that isolated areas of heavy river ice coverage have
already developed. While not likely, ice jams will be possible in
isolated areas along the Rock, Fox, Des Plaines, and Kankakee
rivers. Ice jams may cause rises on area rivers with little warning.
Despite warmer temperatures expected by this weekend, widespread
melting of river ice is not expected. As a result, most river ice
that develops this week will likely remain in place through early
next week.
This outlook means that elevated water levels and potential impacts
are possible, but not yet certain. Persons with interests along area
rivers should closely monitor the latest forecasts.
This product may be updated by tomorrow afternoon.
Areas Impacted:
Boone, IL
Cook, IL
De Kalb, IL
DuPage, IL
Ford, IL
Grundy, IL
Iroquois, IL
Kane, IL
Kankakee, IL
Kendall, IL
Lake, IL
La Salle, IL
Lee, IL
Livingston, IL
McHenry, IL
Ogle, IL
Will, IL
Winnebago, IL
Benton, IN
Jasper, IN
Lake, IN
Newton, IN
Porter, IN
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Hydrologic Outlook
In effect from Thursday, Dec 04 2025 12:56 PM - Friday, Dec 05 2025 4:00 AM
Issued by NWS Seattle WA
ESFSEW
A series of atmospheric rivers will provide rounds of increasingly
impactful rainfall starting on Friday and continuing through early
next week. Snow levels will remain around 5000 to 6000 feet. Expect
rising rivers with potential for flooding especially for rivers
flowing off the Olympics and Cascades. Urban flooding and landslides
are also possible throughout this period as the soil conditions
remain wet.
