San Juan County, WA Weather Alerts
Every National Weather Service alert issued for San Juan County, Washington, pushed to your phone within moments — county code WAC055, forecast zone 2 zones (WAZ001, WAZ311). Free with StormCast.
Download on Google PlayHow the NWS identifies San Juan County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches WAC055 directly rather than matching on place names, which is why an alert arrives whether you are in Blakely Island or anywhere else in the county.
NWS County Code
WAC055
Forecast Zones
2 zones (WAZ001, WAZ311)
Forecast Office
Seattle (SEW)
Radar Station
KATX
Towns covered in San Juan County
An NWS alert for San Juan County applies to all 9 of these communities. You do not need a separate alert for each one.
Current conditions
Loading current conditions…
Alert types issued for San Juan County
Tornado
Tornado Warning, Tornado Watch, Tornado Emergency and Severe Thunderstorm Warning.
How tornado alerts work →Flooding
Flash Flood Warning, Flood Watch, Flood Advisory and River Flood Warning.
How flood alerts work →Winter
Winter Storm Warning, Ice Storm Warning, Blizzard Warning and Winter Weather Advisory.
Winter warnings explained →Fire Weather
Red Flag Warning and Fire Weather Watch when conditions favor rapid fire spread.
Fire weather alerts →Heat & Cold
Excessive Heat Warning, Heat Advisory, Freeze Warning and Frost Advisory.
Frost & freeze alerts →San Juan County weather alert questions
Which NWS forecast zone is San Juan County in?
San Juan County, Washington is NWS county code WAC055 and spans 2 forecast zones (WAZ001, WAZ311). Alerts for it are issued by the Seattle (SEW) Weather Forecast Office, and the nearest NEXRAD radar is KATX.
Which towns in San Juan County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for San Juan County covers every community inside it, including Blakely Island, Deer Harbor, Eastsound, Friday Harbor, Lopez Island, Olga, Orcas, Shaw Island and Waldron.
Does StormCast monitor flooding in San Juan County?
Yes. StormCast tracks NWS flood watches, flash flood warnings and river flood warnings for San Juan County, alongside 12,700+ USGS river gauges nationwide.
How fast are alerts for San Juan County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for WAC055, the push notification goes out within moments — even with your screen off.