Author: Jason HartmanPublisher:
ISBN:
Category : Command and control at fires
Languages : en
Pages : 2
Book Description
Red Flag Warning and Fire Weather Information
Author: Jason HartmanPublisher:
ISBN:
Category : Command and control at fires
Languages : en
Pages : 2
Book Description
Fire Weather Program User Information
Author: Verification of Red Flag Warnings Across the Northwestern U.S. as Forecasts of Large Fire Occurrence
Author: Joshua M. ClarkPublisher:
ISBN:
Category : Fire weather
Languages : en
Pages : 92
Book Description
Red Flag Warnings (RFWs) issued by the National Weather Service in the United States (U.S.) are an important fire early warning system based on forecasts of critical fire weather that foster fire activity including the occurrence of large fires. However, verification of RFWs as they relate to fire activity is lacking, thereby limiting means to improve forecasts as well as increase value for end-users. We evaluated the efficacy of RFWs as forecasts of large fire occurrence for the Northwestern U.S and found favorable performance broadly across the area, along with substantial skill and improvement over reference forecasts. We further demonstrate that the skill of RFWs is significantly higher for lightning-ignited large fires and for forecasts issued during periods of high fuel dryness. The results of this first verification study of RFWs lay the groundwork for future efforts towards improving the relevance and usefulness of RFWs to better serve the fire community and public.
Development of a Decision Matrix National Weather Service Red Flag Warnings
Author: Sarah JakoberPublisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description
This thesis consists of a paper addressing operational fire weather through the examination of incidents of extreme wildfire behavior. Work performed during the period of study included analyzing documented occurrences of extreme fire behavior, examining meteorological phenomena associated with such, as well as identifying forecasting techniques currently being used and operational practices of land managers surrounding these forecasts. The result was a body of work prepared for submission to a peer reviewed journal which recommended a scientific methodology for issuing Red Flag Warnings utilizing a decision matrix derived from meteorological conditions associated with extreme rates of wildfire spread. Percentiles of Energy Release Component (a NFDRS index of fuel dryness), relative humidity, and windspeed were utilized as meteorological parameters. By assigning a severity-based numerical score to each parameter, the resulting total score for each incident can be tabulated in matrix form. Current forecast criteria, as well as previously issued warnings are also scored and compared.
Fire behavior
Author: Fire Management Notes
Author: Weather Guide for the Canadian Forest Fire Danger Rating System
Author: B. D. LawsonPublisher:
ISBN:
Category : Fire risk assessment
Languages : en
Pages : 90
Book Description
This weather guide includes detailed specifications for locating and instrumenting fire weather stations, taking weather observations, and overwintering the Drought Code component of the FWI System. The sensitivity of the FWI System components to weather elements is represented quantitatively. The importance of weather that is not directly observable is discussed in the context of fuel moisture and fire behavior. Current developments in the observation and measurement of fire weather and the forecasting of fire danger are discussed, along with the implications for the reporting of fire weather of increasingly automated fire management information systems.
Fire Management Today
Author: U.S. Severe Weather Terminology
Author: Fire Weather
Author: California. Department of Forestry and Fire ProtectionPublisher:
ISBN:
Category : Fire weather
Languages : en
Pages : 288
Book Description