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Fire Weather Customer Meeting. December 13 th 2006. Outline. Verification statistics - Brent Red Flag/Fire Weather Watch PFW product - Brent Spot weather forecasts & feedback - Brent Statistics Feedback Example Ventilation Requests Thunderstorm winds
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Fire Weather Customer Meeting December 13th 2006
Outline • Verification statistics - Brent • Red Flag/Fire Weather Watch • PFW product - Brent • Spot weather forecasts & feedback - Brent • Statistics • Feedback • Example • Ventilation Requests • Thunderstorm winds • Seasonal Long Range Forecast – Charlie • Open floor
Verification statistics RFW product
Red Flag Warning 2006 • Zones Warned: 195 (Up 129 from ‘05) • Total Zones Occurred: 146 (Up 107 from ‘05) • Warned Zones Verified: 140 • Warned Zones didn’t Verify: 48 • No warning issued/Zones Missed: 6 • POD (Prob of Detection): 0.96 (1.0 ‘05) • FAR (False Alarm Rate): 0.28 (0.41 ‘05) • CSI (Critical Success Index): 0.70 (0.59 ‘05) • Average Lead Time: 9.5 hrs (5.4 hrs ‘05)
Fire Weather Watch 2006 • Zones Watch: 173 (Up 125 from ‘05) • Total Zones Occurred: 146 (Up 107 from ‘05) • Watch Zones Verified: 114 • Watch Zones didn’t Verify: 59 • No watch issued/Zones Missed: 22 • POD (Prob of Detection): 0.78 (0.64 ‘05) • FAR (False Alarm Rate): 0.34 (0.44 ‘05) • CSI (Critical Success Index): 0.56 (0.43 ‘05) • Average Lead Time: 26.5 hrs (16.3 hrs ‘05)
What is the PFW? • Point forecast matrix • Tabular weather forecast with several weather variables • i.e Temp, RH, Wind, Haines Index etc • Issuance times • Fire Weather: 8 am and 330 pm • Aviation sites: 4 am and 4 pm • All year round
What is it? • Temporal Resolution • Every 3 hours through ~ 60 hours • Every 6 hours from 60 hr to 7 days out • Spatial Resolution • 2.5 km² grid box • Weather station contained in grid box ~ 2.4 mi² grid box→
How do you access it? ←Click on site
Useful? • Planning tool • Meet prescription objectives • Efficient use of workforce • Adds more Ventilation sites • Adjust numbers based on Grid Box elevation • PFW tends to come out earlier than Planning Forecast • Falls out of our grid forecasts • Product not edited • Planning not so much tactical
Turn around time • Subtract requested time from forecast complete time Avg: 33 minutes Avg: 35 minutes Avg: 30 minutes Avg: 31 minutes
Types of Weather Feedback Feedback↓Button
Remarks Box Following Requests ↑
Example: Spot request and feedback use (multi-day) event • Lajara prescribed burn • September 26th to October 4th 2006 • Jicarilla • Feedback • Used remarks section • Used permanent RAWS • Stone Lake
Initial Forecast Make sure to make note in Remarks each spot request
Another reminder • Choose the elements and time period you need.
Feedback Remarks Section September 26th September 29th
Feedback Remarks Section September 30th October 3rd
What does the example show? • Feedback good! • Use of permanent RAWS and Remarks section • Forecasts fairly accurate • Customer only requested what they needed • Turn around times in getting the forecast out… • 20 to 30 minutes
Ventilation Requests Reminder
Thunderstorm wind statement • Generic statement • Location within Spot? • Effective content/verbiage?
First example • Use of headline • When thunderstorms forecasted
Second example • Statement appended to wind section • When thunderstorms forecasted
Third example • Statement appended to wind section • When thunderstorms forecasted
Fourth example • Canned statement inserted at bottom • All-year round
Open Floor Questions/Comments/Suggestions
End November 14th 2006