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: 08/21/2023 08:59 AM

Forecast Duration: From Mon. 08/21/2023 09:00 AM to Thu. 08/31/2023 06:00 PM

Fire Map Reference	Date of Fire	Affected Areas	Mudflow Forecast Phase Level
Land Fire Recovery: 1 year	Sep 2022	La Tuna Canyon Area (City of LA)	No Phase
Fish Fire Recovery: 1 year	Jun 2022	City of Duarte	No Phase
Grandview Fire Recovery: 2 years	Oct 2020	City of Glendale	No Phase
Ranch2 Recovery: 3 years	Sep 2020	Mountain Cove Community - City of Azusa	No Phase
Bobcat Fire Recovery: 3 years	Sep 2020	City of Monrovia	No Phase
Bobcat Fire Recovery: 3 years	Sep 2020	Juniper Hills, Devil's Punchbowl, Valyermo Area	No Phase
Lake Fire Recovery: 3 years	Aug 2020	Lake Hughes	No Phase
Tujunga Fire Recovery: 3 years	Jul 2020	Sunland-Tujunga	No Phase
Soledad Fire Recovery: 3 years	Jul 2020	Agua Dulce	No Phase
Equestrian Fire Recovery: 3 years	Jun 2020	Castaic Area	No Phase
Getty Fire Recovery: 3 years	Oct 2019	Brentwood	No Phase
Tick Fire Recovery: 3 years	Oct 2019	City of Santa Clarita	No Phase
Saddleridge Fire Recovery: 3 years	Oct 2019	Sylmar Area, Granada Hills Area, Porter Ranch Area	No Phase
Colorado Fire Recovery: 4 years	Aug 2019	City of Glendale, Eagle Rock Area	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Community of Agoura Hills	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Community of Calabasas	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Community of Los Angeles	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Community of Malibu East of Kanan Dume Rd	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Community of Malibu west of Kanan Dume Rd	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Community of Westlake Village	No Phase
Woolsey Fire Recovery: 4 years	Nov 2018	Unincorporated Los Angeles County	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.