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Running a Short-Term Fire Behavior (STFB) Analysis

Fire Behavior Specialists can run the Short Term Fire Behavior model. This version allows the analyst to modify many input parameters, unlike the automated version, which is available to dispatchers, authors, editors, and incident owners, and doesn't allow for much parameter input modification. The following parameters can be modified when running Short Term Fire Behavior:

When making changes to these parameters, use the Save button to save your selections.

Fire Behavior Requester Reminder details information you can provide to the Analyst that improves the run results.

CAUTION: Changing the analysis date, RAWS station, or burn period information, automatically repopulates the hourly records and overwrites your changes.

To run a STFB:

  1. From the Incident list, select the incident for which you want to run a STFB.
  2. Click View Analyses. The Analysis List appears for the selected incident.
  3. Under New Analysis, select Short-Term, then click Create Analysis for Incident. The New Short-Term Analysis page appears.
  4. Enter an Analysis Name. The analysis name cannot contain an apostrophe or backslash; the cursor blinks if you try to add these characters and a message displays that these characters are disabled.

    Since incidents can have many analyses associated with them, be specific in your name (up to 48 characters). For example, "RedValley STFB 06152009 1300 jdoe" would be the Red Valley fire, STFB run on June 15, 2009 at 1 pm by John Doe.

  5. Set the date and hours. (The Hour field is the time at which fuels conditioning will stop.)
    • For dates in the future, WFDSS uses forecast data.
    • For dates in the past, WFDSS uses historic RAWS data.
  6. Set the conditioning days. Five days is usually adequate since only 1-, 10-, and 100-hour timelag fuels are conditioned.
  7. Set the burn period (hours per period) and number of periods.
  8. Set the foliar moisture content and select a crown fire method.
    • The default foliar moisture is usually adequate for an average fire season, but you might want to change it during a drought or if an insect/disease episode is occurring.
    • For recent versions of Landfire (2010, 2014) the canopy fuel values for CBD were computed to produce more active crown fire when using the Scott and Reinhardt compared to the Finney crown fire model. You would expect to see slower ROS and less fire intensity for predicted passive crown fire when using Finney versus Scott and Reinhardt crown fire models. However, the final selection of a crown fire model should be based on calibration to observed fire behavior.
  9. Set the spotting probability. There is generally no need to change the Spotting Seed.
  10. Upload ignition and barriers shapefiles.
  11. Set the spread options in degrees (to simulate backing, flanking, or head fire).
  12. Verify the RAWS information.
  13. Click Create. The Detailed Short-Term Fire Behavior page appears.
  14. Verify the following items:
  15. Create a landscape file and edit it if necessary. (See Creating the Landscape File and Editing a Landscape File.)
  16. Use the requirements fly-out menu on the right to ensure all required components are completed.
  17. Click Run Short-Term Fire Behavior. The analysis runs.

Depending on the landscape size and resolution, as well as the traffic on the server, the analysis could take several minutes to run. Refresh your browser to see the status change to Complete, then select the analysis and click View Results to see the analysis results on the map view.

Last updated on 8/7/2023 3:16:44 PM.

In This Section

Analysis for Fire Behavior Specialists

To run a STFB:

See Also

Viewing Fire Behavior Request Details

Accepting or Refusing an Analysis Request

Granting Analysis Privileges

Downloading a RAWS KMZ File

Analysis Notes

About Analysis Shape Files (STFB, NTFB, FSPro)

Drawing a Landscape Extent

Creating a Landscape Editor Rule

Importing Landscape Editor Rules

Creating the Landscape File

Downloading an LCP File

Editing the Landscape File

Modifying Landscape File Parameters

Viewing the Landscape for an Analysis

Generating a Landscape Critique

Downloading a Landscape Critique

Basic Fire Behavior (BFB)

Running a Basic Fire Behavior (BFB) Analysis

Copying an Existing Basic Fire Behavior Analysis

Analyst_Assisted Short Term Fire Behavior (STFB)

Copying an Existing Short-Term Fire Behavior Analysis

Near-Term Fire Behavior (NTFB)

Running a Near-Term Fire Behavior Analysis (NTFB)

Setting Up Burn Periods for NTFB

Using Gridded Winds (BFB, STFB)

Modifying Wind Information (BFB, STFB)

Modifying Fuel Moistures for Fire Behavior Analysts

About Weather Station Information (BFB & STFB, NTFB, FSPro)

About FWX Weather Files

Downloading FWX Weather Files (FSPro)

Weather Station Availability for Fire Behavior Analysis

Generating Hourly Weather Forecasts

Viewing and Modifying Weather Summary Data (BFB, STFB & NTFB)

Copying an Existing Near-Term Fire Behavior Analysis

Creating an FSPro Analysis

About General FSPro Input Parameters

FSPro Information Menu Option

About Run FSPro Status

Monitoring FSPro Run Status from the Analysis List

About the Date Filter (FSPro)

Copying an Existing FSPro Analysis

About the ERC Stream (FSPro)

About ERC Classes (FSPro)

Setting up FSPro Winds

Editing the FSPro Wind Matrix

Adding or Deleting Rows to the Winds Matrix (FSPro)

Downloading Winds (FSPro)

Recalculating Winds Distribution (FSPro)

Interpreting the Winds Rose (FSPro)

Downloading an Analysis KMZ File

Near Term Fire Behavior Results Downloads

FSPro Fire Behavior Results Downloads

Viewing Analysis Notes

Viewing Analysis Results

Viewing the Analysis Report


Field Descriptions

Glossary Resources

Spatial Data Reference

Landscape Data Source Reference

Relative Risk Reference

Organization Assessment Reference

Fire Behavior Reference

About the WFDSS Decision Editors