Flash Flood Warning — Mason County, Washington
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 13 at 3:37PM PDT until August 13 at 5:30PM PDT by NWS Seattle WA
FFWSEW The National Weather Service in Seattle has issued a * Flash Flood Warning for... The Bear Gulch burn scar in... Northwestern Mason County in northwestern Washington... * Until 530 PM PDT. * At 337 PM PDT, Doppler radar indicated thunderstorms producing heavy rain over the Bear Gulch Burn Scar. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Bear Gulch burn scar. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Flash flooding caused by thunderstorms in and around the Bear Gulch Burn Scar. SOURCE...Radar indicated. IMPACT...Flooding of areas in and around the Bear Gulch Burn Scar. * North Fork Skokomish River headwaters
Effective August 13, 2026 at 6:37 PM ET · Expires August 13, 2026 at 8:30 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Seattle WA
Expires
August 13, 2026 at 8:30 PM ET
Last Checked
1 minute ago
What To Do
📋 Official NWS Guidance
This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Bear Gulch Burn Scar. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.
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Get Flash Flood Warning Alerts for Mason County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Mason County, Washington?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire August 13, 2026 at 8:30 PM ET.
How do I get notified about Flash Flood Warning alerts for Mason County?
Download StormCast free on Google Play and set Mason County, Washington as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.