Southwest U.S. NFDRS Charts

Updated: 10-18-2025

The charts below depict realtime and forecasted values of two standard fire danger indices part of the National Fire Danger Rating System: Energy Release Component and Burning Index. Charts are updated each evening using NFDRS data from the Fire Environment Management System and plotted against climatological information generated for each Southwest Predictive Service Area by FireFamily+ (2012-2022 reference period). (Archived plots from past years can be found at: SW NFDRS Archive.)

Energy Release Component (Fuel Model Y)

ERC SW-01

ERC SW-01 Interactive Chart

ERC SW-02

ERC SW-02 Interactive Chart

ERC SW-03

ERC SW-03 Interactive Chart

ERC SW-04

ERC SW-04 Interactive Chart

ERC SW-05

ERC SW-05 Interactive Chart

ERC SW-06N

ERC SW-06N Interactive Chart

ERC SW-06S

ERC SW-06S Interactive Chart

ERC SW-07

ERC SW-07 Interactive Chart

ERC SW-08

ERC SW-08 Interactive Chart

ERC SW-09

ERC SW-09 Interactive Chart

ERC SW-10

ERC SW-10 Interactive Chart

ERC SW-11

ERC SW-11 Interactive Chart

ERC SW-12

ERC SW-12 Interactive Chart

ERC SW-13

ERC SW-13 Interactive Chart

ERC SW-14N

ERC SW-14N Interactive Chart

Burning Index (Fuel Model Y)

BI SW-01

BI SW-01 Interactive Chart

BI SW-02

BI SW-02 Interactive Chart

BI SW-03

BI SW-03 Interactive Chart

BI SW-04

BI SW-04 Interactive Chart

BI SW-05

BI SW-05 Interactive Chart

BI SW-06N

BI SW-06N Interactive Chart

BI SW-06S

BI SW-06S Interactive Chart

BI SW-07

BI SW-07 Interactive Chart

BI SW-08

BI SW-08 Interactive Chart

BI SW-09

BI SW-09 Interactive Chart

BI SW-10

BI SW-10 Interactive Chart

BI SW-11

BI SW-11 Interactive Chart

BI SW-12

BI SW-12 Interactive Chart

BI SW-13

BI SW-13 Interactive Chart

BI SW-14N

BI SW-14N Interactive Chart

Other SW Fire Danger Information Resources:

Email Mike Crimmins with questions and/or suggestions.

Climate Science Applications Program - University of Arizona Cooperative Extension

Latest https://github.com/mcrimmins/SWFireDanger

Last Updated: “10-18-2025”© 2022 The Arizona Board of Regents. All contents copyrighted. All rights reserved.