Flood Watch
Puget Sound Lowlands
Details
Heavy rain may cause rapid river rises and urban/poor drainage flooding. Landslides possible.
Valid: Today 4 AM — Tomorrow 10 PM
Pacific Northwest focus: heavy rain, AR moisture plumes, coastal wind storms, flooding/landslides, and Cascade snow.
Coverage: WA • OR • Coastal headlands • Puget Sound • Willamette Valley • Cascades crest
Regional Temp (avg)
48°F
Active Warnings
High Wind Warning
North Oregon Coast
Details
South winds 35–45 mph, gusts 60–70 mph near headlands and capes. Power outages and tree damage likely.
Valid: Today 11 AM — Tonight 2 AM
Coastal Flood Advisory
WA/OR Tidal Areas
Details
High tide plus surge may inundate low-lying coastal roads and parking areas. Beware sneaker waves.
Valid: This morning high tide cycle
Winter Weather Advisory
Cascades above 3000 ft
Details
3–8" snow with locally higher near passes. Slippery travel and reduced visibility at times.
Valid: Through Tonight
Precipitation & Flooding
Rainfall Totals
Last 24 hrs1‑hr
0.32"
6‑hr
1.12"
24‑hr
2.45"
3‑Day QPF
inches
Model blend suggests 2–5" lowlands, 5–8"+ coast and SW slopes.
River Status
Skokomish: Minor
Chehalis: Near Flood
Snoqualmie: Rising
Several basins nearing bankfull. Watch rapid responses on southwest slopes and urban creeks during peak bands.
River Gauges Map
Live gauges
Source: NWS AHPS / USGS
Atmospheric River Monitor
IVT
850–1000 kg m⁻¹ s⁻¹
(moderate–strong)
AR Cat 1Cat 2Cat 3Cat 4Cat 5
72‑hour IVT trend
Peak tonight; gradual decline by D+2 with showers lingering.
Moisture Plume
Wind & Coastal Hazards
North OR Coast
41 mph Sust.
Gusts 66 mph
South WA Coast
38 mph Sust.
Gusts 58 mph
Headlands/Capes
45 mph Sust.
Gusts 72 mph
Puget Sound
22 mph Sust.
Gusts 38 mph
Tides & Surge
- High tide +0.7–1.1 ft surge this morning
- Rough bar conditions; breakers 18–22 ft
- Sneaker wave risk on open beaches
Coastal Cameras
Live views
Landslide Risk
Saturation
Urban slopes: Elevated
SW Cascade foothills: High
Intensity–Duration Threshold
Several sites near or above I–D threshold, especially where 24‑hr totals exceed 2".
Watchlist Locations
| Seattle hillsides | Elev. |
| Chehalis basin banks | High |
| Snoqualmie bluffs | Elev. |
| Oregon Coast Range | High |
Mountain Snow & Passes
Snow Level
2800 ft
24‑hr Snowfall
6.5"
Forecast Snow (next 48 hrs)
Stevens
8–14"
Snoqualmie
5–10"
Santiam
6–12"
Traction
Stevens: Chains Advised
Snoqualmie: Snow & Ice
Santiam: Carry Chains
Pass Temps
Stevens: 25°F
Snoqualmie: 29°F
Santiam: 27°F
Radar & Futurecast
Now
+3h
+6h
Composite Radar
Futurecast (HRRR)
Travel Impacts
Timeline
-
Now
Heaviest coastal rain and wind; minor tidal flooding possible.
-
Eve
I‑5 corridors: ponding, hydroplaning risk; scattered outages from wind.
-
Overnight
Cascades passes: snow and ice; traction required at times.
Hazards Checklist
- Ponding on highways
- Downed limbs/powerlines
- Chain-up delays at passes
- Localized landslides
City Quicklook
Seattle
Light Rain49°F
Wind 18 mph
24h Rain 1.9"
24h Rain 1.9"
Portland
Rain51°F
Wind 16 mph
24h Rain 2.2"
24h Rain 2.2"
Olympia
Rain47°F
Wind 14 mph
24h Rain 2.0"
24h Rain 2.0"
Everett
Showers48°F
Wind 20 mph
24h Rain 1.6"
24h Rain 1.6"
Bellingham
Breezy46°F
Wind 24 mph
24h Rain 1.2"
24h Rain 1.2"
Astoria
Windy50°F
Wind 32 mph
24h Rain 2.8"
24h Rain 2.8"
Hood River
Rain/Snow39°F
Wind 18 mph
24h Snow 1.0"
24h Snow 1.0"
Safety Disclaimer
Rainline WX is an awareness dashboard and does not replace official emergency alerts, local authorities, road condition services, or the National Weather Service. Always follow official warnings and emergency instructions. Visit weather.gov and your state DOT resources for real‑time decisions.