Thunderstorm Wind — Modoc, California

1999-07-13 · near Alturas Muni Arpt, Modoc, California

Event narrative

See below.

Wider weather episode

The Klamath Falls Herald and News reported that strong winds struck Alturas around 2100 LDT on 07/13/99. The winds, probably caused by a microburst associated with a thunderstorm, damaged the roofs of the Alturas Middle School and the Alturas Municipal swimming pool. Numerous downed trees and power lines were also reported. Additionally, the HNX WCM reported damage that he observed when visiting Alturas. He reported that roof damage to a shed at the airport. The debris from the roof damaged a cyclone fence, and he estimated that the damaging winds were from the northwest at greater than 60 mph. This same gust broke three 4"x4" posts that were supporting a balcony at a residence 5 miles northwest of the airport. The Alturas ASOS reported a peak wind of 69 mph from 300 degrees at 2112 LDT. The two-minute average winds was 51 mph from 300 degrees.

View location on OpenStreetMap → (41.4800, -120.5700)

Source: NOAA Storm Events Database, event_id 5711147. Narrative written by the NWS forecast office that issued the report.