Wildfire Incident Information
Terrain
Satellite
OSM
0% contained
Fire Status
OUT
Last Updated
2 months ago
Fire Start
Saturday, July 29, 2023 1:11 AM PDT
Incident #
2023-WANCP-000262
Fuels
TIMBER/UNDERSTORY
Dispatch Notes
Contain: 11/01/2023 09:00 | Control: 11/13/2023 12:00 | Out: 11/27/2023 12:00
Primary Fire Agency

National Park Service — North Cascades National Park

Current Weather

Fire Growth Potential

Fire Weather Forecast

Incident Overview

Inciweb information was updated: 10 months ago

The Sourdough Fire was reported on Saturday 29 July 2023. The fire is located in Ross Lake National Recreation Area within the North Cascades National Park Service Complex and is burning in very steep terrain. Please go to the Video Tab on this page to see our daily Operations Briefing.

Basic Incident Details

Last Updated
Fri, Aug 4, 2023 12:08 PM UTC
Incident Type
Wildfire
Cause
Lightning/Natural
Fire Discovered
Sat, Jul 29, 2023 9:11 AM UTC
Location
North of Diablo Lake, along Sourdough Ridge between Sourdough and Bucket Creeks
Incident Commander
Mitch Ketron/ Michael Brod (t) SA-
IMT3 Gray
Incident Description
The Sourdough Fire was first reported on 29 July 2023 and is burning in very steep terrain.
Coordinates
48.721666666667, -121.13555555556

Current Situation

Total Personnel
163
Size
534 Acres
Containment
0%
Estimated Containment
Saturday, September 30, 2023 11:00 PM PDT
Fuels Involved

Primary Fuel Model, Materials, or Hazards Involved (hazardous chemicals, fuel types, infectious agents, radiation, etc):
Timber (Litter and Understory)

Narrative:
Fuel Model Y. Timber with deep liter, duff and associated understory brushes and grass. ERC's 92nd percentile

Significant Events

Observed Fire Behavior or Significant Events for the Time Period Reported (describe fire behavior using accepted terminology. For non-fire incidents, describe significant events related to the materials or other causal agents):Active
 

Group Torching
Flanking
Backing

 

Narrative:
Roll out occurring, Group torching with short uphill runs. Active fire behavior as fire backs toward drainage bottom, then moves back uphill. Growth and future potential with terrain influenced spread and dry fuels. Extremely Steep and inaccessible terrain

Planned Outlook

Planned Actions
Planned Actions for Next Operational Period:
Point Protection at values at risk. Coordinate with local personnel and resource advisors. Monitor closure orders. Continue air operations conducting bucket drops
Projected Incident Activity

48 hours: Thunderstorms expected to arrive Friday with the potential for gusty outflow winds and lightning.

12 hours: Fire activity expected to increase throughout the day as warm temps and low RH, along with northerly winds a concern. Single tree torching with spot fire development is likely.

Remarks
Resources on order; anticipate personnel increase and fire growth