Debris and Mudflow Potential Forecast
Please note this Debris and Mudflow Potential Forecast applies to those communities for which Mudflow Phase Maps have been prepared. Other rural and canyon roads below burn areas may be impacted by any significant storm event.
Last Updated: 10/06/2021 12:18 PM
Forecast Duration: From Thu. 10/07/2021 10:00 PM to Fri. 10/08/2021 10:00 PM
Fire Map Reference Date of Fire Affected Areas Mudflow Forecast Phase Level
Grandview Fire
Recovery: 0 year
Oct 2020 City of Glendale No Phase
Ranch2
Recovery: 1 year
Sep 2020 Mountain Cove Community - City of Azusa No Phase
Bobcat Fire
Recovery: 1 year
Sep 2020 City of Monrovia No Phase
Bobcat Fire
Recovery: 1 year
Sep 2020 Juniper Hills, Devil's Punchbowl, Valyermo Area No Phase
Lake Fire
Recovery: 1 year
Aug 2020 Lake Hughes No Phase
Tujunga Fire
Recovery: 1 year
Jul 2020 Sunland-Tujunga No Phase
Soledad Fire
Recovery: 1 year
Jul 2020 Agua Dulce No Phase
Equestrian Fire
Recovery: 1 year
Jun 2020 Castaic Area No Phase
Getty Fire
Recovery: 1 year
Oct 2019 Brentwood No Phase
Tick Fire
Recovery: 1 year
Oct 2019 City of Santa Clarita No Phase
Saddleridge Fire
Recovery: 2 years
Oct 2019 Sylmar Area, Granada Hills Area, Porter Ranch Area No Phase
Colorado Fire
Recovery: 2 years
Aug 2019 City of Glendale, Eagle Rock Area No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Community of Agoura Hills No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Community of Calabasas No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Community of Los Angeles No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Community of Malibu East of Kanan Dume Rd No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Community of Malibu west of Kanan Dume Rd No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Community of Westlake Village No Phase
Woolsey Fire
Recovery: 2 years
Nov 2018 Unincorporated Los Angeles County No Phase
Portola Fire
Recovery: 3 years
Jun 2018 Beverly Glen No Phase
South Fire
Recovery: 3 years
Jun 2018 Santa Clarita No Phase
Stone Fire
Recovery: 3 years
Jun 2018 Agua Dulce No Phase
Creek Fire
Recovery: 3 years
Dec 2017 Kagel Canyon No Phase
Creek Fire
Recovery: 3 years
Dec 2017 Little Tujunga, Lake View Terrace, Eby Canyon, & Shadow Hills No Phase
Creek Fire
Recovery: 3 years
Dec 2017 Pacoima Wash & Lopez Canyon No Phase
Skirball Fire
Recovery: 3 years
Dec 2017 Sepulveda Blvd, Casiano Rd, Moraga Dr, Moraga Ln, Vista Moraga, Linda Flora Dr. No Phase
La Tuna Fire
Recovery: 4 years
Sep 2017 Burbank East Area No Phase
La Tuna Fire
Recovery: 4 years
Sep 2017 Burbank West Area No Phase
La Tuna Fire
Recovery: 4 years
Sep 2017 La Tuna Canyon Road Area No Phase
La Tuna Fire
Recovery: 4 years
Sep 2017 Shadow Hills Area No Phase
La Tuna Fire
Recovery: 4 years
Sep 2017 Sun Valley Area No Phase
La Tuna Fire
Recovery: 4 years
Sep 2017 Sunland - Tujunga Area No Phase

GENERAL NOTES

The debris and mudflow potential forecast is based upon a review of watershed conditions and weather forecasts from the National Weather Service and other weather predicting sources. It represents conditions within the watershed that could lead to debris and mudflow events. Debris and mudflows are highly unpredictable events. The following description is to assist storm response Divisions and emergency response agencies to plan accordingly:

No Phase

    Rain is forecast by the National Weather Service, but the amount of rain and/or watershed conditions are not anticipated to produce appreciable amounts of debris on streets or specific public infrastructure locations. Reports of debris on private property may be received by emergency response entities. Few, if any, structures are anticipated to be endangered, other than those advised to be prepared to evacuate with any forecast of rain.

Phase 1

  • Small isolated debris and mudflows possible at specific public infrastructure locations. Streets may be flooded or blocked by debris. Reports of debris on private property may be received by emergency response entities. A few structures may be endangered, in addition to those advised to be prepared to evacuate with any forecast of rain.

Phase 2

  • Moderate debris and mudflows possible at more widespread locations. Some streets may be completely blocked by debris. Depending on location and terrain, some structures may be endangered, in addition to those advised to be prepared to evacuate with any forecast of rain.

Phase 3

  • The potential exists for significant debris and mudflows to be widespread over specific areas. Streets may be blocked and considered unsafe for travel. Many structures could be endangered by debris and mudflows. Extreme caution should be exercised below uncontrolled canyons due to sudden debris flows.

For questions or further information, contact (626) 458-6164, Monday through Thursday, 6:30 A.M. to 5:15 P.M. After hours, telephone (800) 675-HELP.