Cosmopolis, WA Live Doppler Radar
Live radar for Cosmopolis, Grays Harbor County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Cosmopolis?
Since 1996, the National Weather Service has logged river or areal flooding on 6 days in the Lower Chehalis River Valley forecast zone and Grays Harbor County — the most common reported hazard around Cosmopolis, mostly in January and November. Next come storm surge (3 days) and damaging thunderstorm winds (1 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Flooding | 6 | Jan 2022 | Jan 6, 2022 · 2 deaths · $3.4 million damage |
| Storm surge | 3 | Nov 2002 | Mar 3, 1999 · $1.0 million damage |
| Damaging thunderstorm winds | 1 | Dec 2010 | — |
| Debris flows | 1 | Jan 2015 | Jan 5, 2015 · $300,000 damage |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Lower Chehalis River Valley forecast zone and Grays Harbor County; damage is as reported, not adjusted for inflation.
Which radars cover Cosmopolis?
The closest NEXRAD Doppler radar is KLGX (Langley Hill, WA), about 19 miles northwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Cosmopolis | View |
|---|---|---|---|
| KLGX Langley Hill, WA | 19 mi northwest | 1,100 ft | Excellent — the lowest scan sees close to the ground |
| KRTX Portland, OR | 94 mi south-southeast | 8,700 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KATX Seattle/Tacoma, WA | 104 mi northeast | 10,300 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Cosmopolis
Since 1950, NOAA has recorded 3 tornadoes within 25 miles of Cosmopolis. Most came in December and August. The strongest was an F0 on August 26, 1997, which touched down about 14 miles east-northeast of town. The most recent was an F0 on December 23, 1997, which touched down about 17 miles west-southwest of town.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Cosmopolis's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Cosmopolis radar FAQ
Where is the nearest weather radar to Cosmopolis, WA?
KLGX (Langley Hill, WA), about 19 miles northwest. KRTX (Portland, OR) is 94 miles away and also covers the area.
How often does Cosmopolis flood?
Since 1996 the National Weather Service has logged river or areal flooding on 6 days in the Lower Chehalis River Valley forecast zone and Grays Harbor County; the deadliest was on January 6, 2022, with 2 deaths. TALON's free flash-flood risk layer shows, every 2 minutes, how close the rain that has fallen is to what it takes to flood — turn it on under Layers.
Is TALON's radar for Cosmopolis free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Cosmopolis, follow it right away — see watch vs. warning.
Radar for nearby towns
- Aberdeen, WA radar 2 mi
- Hoquiam, WA radar 7 mi
- Montesano, WA radar 10 mi
- Westport, WA radar 17 mi
- Elma, WA radar 17 mi
- Ocean Shores, WA radar 18 mi
- Raymond, WA radar 19 mi
- South Bend, WA radar 20 mi
- McCleary, WA radar 25 mi
- Shelton, WA radar 36 mi