Tornado Risk in Sitka City and Borough, AK
Sitka City and Borough, AK: what NOAA's tornado record says
Zero tornado tracks recorded in Sitka City and Borough since 1950, per NOAA's Storm Prediction Center. That reflects the actual geography, not a hole in the record. That is the 2nd percentile nationally for tornado frequency. Within Alaska alone, Sitka City and Borough ranks 11 of 30 counties for tornado frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Sitka City and Borough in NOAA's 76-year database. Of its 0 recorded tracks, 0 were weak (EF0-1) and 0 significant (EF2-3).
Shelter and safe-room economics
Alaska does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Sitka City and Borough homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
8,355 people live in Sitka City and Borough, and a tornado outbreak's power loss usually reaches far more of Alaska than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
What Sitka City and Borough's figure does not tell you
Sitka City and Borough's figure is county-wide, not address-specific. Sitka City and Borough covers about 2,870 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Sitka City and Borough has about 8,355 residents.