Lake Bosworth, WA Live Doppler Radar

Live radar for Lake Bosworth, Snohomish County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

What weather hits Lake Bosworth?

Since 1996, the National Weather Service has logged river or areal flooding on 10 days in the Foothills and Valleys of Snohomish and Northern King Counties forecast zone and Snohomish County — the most common reported hazard around Lake Bosworth, mostly in November and January. Next come lightning casualties & damage (9 days) and debris flows (6 days).

HazardDays reportedMost recentWorst on record
Flooding10Dec 2023Jan 7, 2009 · $6.5 million damage
Lightning casualties & damage9Nov 2008Sep 15, 1996 · 1 death
Debris flows6Apr 2017Mar 22, 2014 · 43 deaths · $60 million damage
Damaging thunderstorm winds3Jun 2012Dec 14, 2010 · $30,000 damage
Flash flooding1Apr 2017—

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 Foothills and Valleys of Snohomish and Northern King Counties forecast zone and Snohomish County; damage is as reported, not adjusted for inflation.

How much snow does Lake Bosworth get?

A normal year brings about 4.3 inches of snow to Lake Bosworth, based on NOAA's 1991–2020 climate normals for the Arlington weather station 12.1 miles away. The snowiest month is usually December (2.2 in).

OctNovDecJanFebMarAprMay
0.00.22.20.80.70.40.00.0

Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.

Which radars cover Lake Bosworth?

The closest NEXRAD Doppler radar is KATX (Seattle/Tacoma, WA), about 26 miles west-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.

RadarDistanceLowest beam over Lake BosworthView
KATX
Seattle/Tacoma, WA
26 mi west-northwest1,500 ftExcellent — the lowest scan sees close to the ground
KLGX
Langley Hill, WA
118 mi west-southwest12,500 ftLimited — the beam overshoots the lowest part of storms
KRTX
Portland, OR
168 mi south-southwest21,900 ftLimited — 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 Lake Bosworth

Since 1950, NOAA has recorded 7 tornadoes within 25 miles of Lake Bosworth, 2 of them EF2/F2 or stronger. Most came in May and June. The strongest was an F2 on May 13, 1986, which touched down about 12 miles north-northwest of town. The most recent was an F0 on June 16, 2006, which touched down about 17 miles southeast of town.

Hail: 1 report of 1-inch or larger hail within 25 miles since 1955; the largest was 1.00-inch hail on April 15, 2006.

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 Lake Bosworth'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.

Lake Bosworth radar FAQ

Where is the nearest weather radar to Lake Bosworth, WA?

KATX (Seattle/Tacoma, WA), about 26 miles west-northwest. KLGX (Langley Hill, WA) is 118 miles away and also covers the area.

How often does Lake Bosworth flood?

Since 1996 the National Weather Service has logged river or areal flooding on 10 days in the Foothills and Valleys of Snohomish and Northern King Counties forecast zone and Snohomish County. 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 Lake Bosworth 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 Lake Bosworth, follow it right away — see watch vs. warning.

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