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Wildfire Season Forecast
Forecast 2021
May 20, 2021
Richard Carr, Wildland Fire Research Analyst,
Canadian Forest Service, Natural Resources
Canada
2
2
Background information
3
3
Wildland fire in Canada
• Fire numbers and areas burned are highly variable
• Number of fires decreasing; area burned increasing?
• Consider better detection and suppression
4
4
Wildland fire in Canada
5
5
2020 National Statistics
MB/ON
BC
ON/QC
Red line is 10-year mean
Blue bars are 2020 data
~3620 / 5640=64%
~0.24 / 2.86 (million ha) = 8%
6
6
2021 Seasonal Prediction
Starting Conditions
7
7
Sunspots
8
8
ENSO, PDO – Current SST
ENSO 3.4
regions still a
bit cool but La
Nina has
ended.
Warming
North Pacific.
9
9
Fire problems in ENSO Springs El Niño:
• Warm,
windy, dry in
western
Canada
La Niña:
•Arctic surface
highs bring
dry air, strong
wind around
edges
•Temperature
may be cool
Summer fire
problems may
depend on other
influences
Year DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ
1991 0.4 0.3 0.2 0.3 0.5 0.6 0.7 0.6 0.6 0.8 1.2 1.5
1992 1.7 1.6 1.5 1.3 1.1 0.7 0.4 0.1 -0.1 -0.2 -0.3 -0.1
1993 0.1 0.3 0.5 0.7 0.7 0.6 0.3 0.3 0.2 0.1 0.0 0.1
1994 0.1 0.1 0.2 0.3 0.4 0.4 0.4 0.4 0.6 0.7 1.0 1.1
1995 1.0 0.7 0.5 0.3 0.1 0.0 -0.2 -0.5 -0.8 -1.0 -1.0 -1.0
1996 -0.9 -0.8 -0.6 -0.4 -0.3 -0.3 -0.3 -0.3 -0.4 -0.4 -0.4 -0.5
1997 -0.5 -0.4 -0.1 0.3 0.8 1.2 1.6 1.9 2.1 2.3 2.4 2.4
1998 2.2 1.9 1.4 1.0 0.5 -0.1 -0.8 -1.1 -1.3 -1.4 -1.5 -1.6
1999 -1.5 -1.3 -1.1 -1.0 -1.0 -1.0 -1.1 -1.1 -1.2 -1.3 -1.5 -1.7
2000 -1.7 -1.4 -1.1 -0.8 -0.7 -0.6 -0.6 -0.5 -0.5 -0.6 -0.7 -0.7
2001 -0.7 -0.5 -0.4 -0.3 -0.3 -0.1 -0.1 -0.1 -0.2 -0.3 -0.3 -0.3
2002 -0.1 0.0 0.1 0.2 0.4 0.7 0.8 0.9 1.0 1.2 1.3 1.1
2003 0.9 0.6 0.4 0.0 -0.3 -0.2 0.1 0.2 0.3 0.3 0.4 0.4
2004 0.4 0.3 0.2 0.2 0.2 0.3 0.5 0.6 0.7 0.7 0.7 0.7
2005 0.6 0.6 0.4 0.4 0.3 0.1 -0.1 -0.1 -0.1 -0.3 -0.6 -0.8
2006 -0.8 -0.7 -0.5 -0.3 0.0 0.0 0.1 0.3 0.5 0.7 0.9 0.9
2007 0.7 0.3 0.0 -0.2 -0.3 -0.4 -0.5 -0.8 -1.1 -1.4 -1.5 -1.6
2008 -1.6 -1.4 -1.2 -0.9 -0.8 -0.5 -0.4 -0.3 -0.3 -0.4 -0.6 -0.7
2009 -0.8 -0.7 -0.5 -0.2 0.1 0.4 0.5 0.5 0.7 1.0 1.3 1.6
2010 1.5 1.3 0.9 0.4 -0.1 -0.6 -1.0 -1.4 -1.6 -1.7 -1.7 -1.6
2011 -1.4 -1.1 -0.8 -0.6 -0.5 -0.4 -0.5 -0.7 -0.9 -1.1 -1.1 -1.0
2012 -0.8 -0.6 -0.5 -0.4 -0.2 0.1 0.3 0.3 0.3 0.2 0.0 -0.2
2013 -0.4 -0.3 -0.2 -0.2 -0.3 -0.3 -0.4 -0.4 -0.3 -0.2 -0.2 -0.3
2014 -0.4 -0.4 -0.2 0.1 0.3 0.2 0.1 0.0 0.2 0.4 0.6 0.7
2015 0.6 0.6 0.6 0.8 1.0 1.2 1.5 1.8 2.1 2.4 2.5 2.6
2016 2.5 2.2 1.7 1.0 0.5 0.0 -0.3 -0.6 -0.7 -0.7 -0.7 -0.6
2017 -0.3 -0.1 0.1 0.3 0.4 0.4 0.2 -0.1 -0.4 -0.7 -0.9 -1.0
2018 -0.9 -0.8 -0.6 -0.4 -0.1 0.1 0.1 0.2 0.4 0.7 0.9 0.8
2019 0.7 0.7 0.7 0.7 0.5 0.5 0.3 0.1 0.2 0.3 0.5 0.5
2020 0.5 0.5 0.4 0.2 -0.1 -0.3 -0.4 -0.6 -0.9 -1.2 -1.3 -1.2
2021 -1.0 -0.9 -0.8
Large area burned
Chisholm, AB
Kelowna, BC
Virginia Hills, AB
Slave Lake, AB
Fort McMurray, AB
Big years in BC
10
10
Pacific Decadal Oscillation
https://www.ncdc.noaa.gov/monitoring-
content/teleconnections/pdo-5-pg.gif
Warm phase Cold phase
11
11
North Atlantic Oscillation
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.timeseries.gif
Quebec Area Burned
(NFDB, ha*1000)
2020 69
2019 10
2018 86
2017 38
2016 33
2015 5
2014 64
2013 1900
2012 64
2011 12
2010 315
2009 94
2008 1
2007 343
2006 136
2005 800
2004 3
2003 88
2002 1000
2001 33
2000 39
12
Canadian Cryospheric Information
Network, May 16, 2021
A
12
Fairly typical DC pattern
Autumn Drought Code
Snow depth anomaly (cm)
13
13
2021 Spring start-up conditions
Past 3 months precipitation
(May 10 percent of average)
14
14
2021 Seasonal Prediction
Climate and CMC Forecasts
15
15
ENSO Forecasts
Models
predict
neutral
conditions
16
JuneTemp
GEM-NEMO
carries cool
pool
throughout
year!
June Precip
Dry
southern
Prairies?
16
North American Multi-model Ensemble
NMME
17
JulyTemp
GEM-NEMO
cool still
July Precip
Dry south
continues?
17
North American Multi-model Ensemble
NMME
18
AugustTemp
GEM-NEMO
cool still
August
Precip
Dry south
continues?
18
North American Multi-model Ensemble
NMME
19
19
2021 NRCan-CFS Seasonal Prediction
20
20
Canadian Forest Fire Weather Index (FWI)
System
Temperature
Humidity,
Wind, Rain
Temperature,
Humidity,
Rain
Wind
Temperature,
Rain
Fire Weather
Observations
DC
Drought Code
DMC
Duff Moisture Code
ISI
Initial Spread Index
BUI
Buildup Index
FWI
Fire Weather Index
FFMC
Fine Fuel Moisture Code
Fire Behavior
Indexes
Fuel Moisture
Codes
Snow depth
Barometric Pressure
Horizontal Visibility
Cloud cover and type
Upper air data
DSR/MSR/SSR
Severity Rating
Seasonal forecasts use the severity rating anomaly
21
Climate Ensemble Data: CanSIPS
• Models developed by Canadian Centre for Climate
modeling and analysis
• Models:
• CanCM4i
• GEM-NEMO: Global Environmental Multiscale – Nucleus for
European Modeling of the Ocean
• 10-member ensembles producing 12-month forecasts
• NRCan uses temperature and precipitation data
21
22
22
NRCan-CFS NASFAO and BN Maps
Visual assessment of other data sources used in
Briefing Notes (BN) and North American Seasonal
Forecast Outlook Assessment (NASFAO)
+ =
Include on CWFIS?
Example only
23
Anomaly
Predicted values normalized against average weather
23
NRCan-CFS Prediction: May run, for May
and June
24
24
Anomaly
Predicted values normalized against average weather
NRCan-CFS Prediction: May run, for July
25
25
Anomaly
Predicted values normalized against average weather
NRCan-CFS Prediction: May run, for August
26
26
Anomaly
Predicted values normalized against average weather
NRCan-CFS Prediction: May run, for Sept.
27
Temperature Precipitation
Yellowknife, NT, May 2021 run
27
https://www.ndstudies.gov
GEM-NEMO (top) forecasts lower temperature and severity
rating than CM4i (bottom)
28
Temperature Precipitation
The Pas, MB, May 2021 run
28
https://www.ndstudies.gov
GEM-NEMO (top) and CM4i (bottom) forecast warm and dry
29
29
Season to Date – CIFFC (May 19)
Fires: 75%
Area: 185%
Compared to 20-year averages
30
A
Canadian Wildland Fire Information
System (CWFIS)
30
31
• Climate model limitations
• New runs may differ substantially from previous ones
• Weather often changes partway through a month
• Fire activity depends on ignitions
• Lightning
• Human-caused
31
Caveats …
32
• Weak climatic drivers may produce fluctuating
weather patterns
• Model consensus points to cool northwest, dry south
• Much of dry and warm area in agricultural areas
• This depiction may point to a normal fire year, if
ignitions levels are normal
• Southern boreal may be very active
32
Conclusions …
33
• Canada’s ~6000-8000 fires burn 2-3 million ha yearly
• Fires with serious consequences may occur in any year
• Or where forecast indicates below normal conditions
• Check updates
• Seasonal forecast: first few days each month on CWFIS
• Daily conditions: provincial and/or CWFIS web sites
33
Things to remember …
Government of Ontario
34
34
Questions?
Contact:
Richard Carr
Fire Research Analyst
Natural Resources Canada –
Canadian Forest Service
Richard.Carr@canada.ca
5320 122 Street NW
Edmonton, AB, Canada
T6H 3S5
825-510-1265 780-710-3147
?
?
?
?
?
35
Arctic Oscillation
http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/month.ao.gif
14H x 10.5W
Quebec Area Burned
(NFDB, ha*1000)
2020 69
2019 10
2018 86
2017 38
2016 33
2015 5
2014 64
2013 1900
2012 64
2011 12
2010 315
2009 94
2008 1
2007 343
2006 136
2005 800
2004 3
2003 88
2002 1000
2001 33
2000 39
36
• More CFS staff = more help for upgrades:
• Predictive Services group?
• CWFIF project?
• More input locations
• Additional model output (wind speed, snowmelt, ...)
• Other data sources and models
• Validation
36
Possible improvements …

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ICLR wildfire season forecast 2021 (May 20, 2021)

  • 1. 1 Wildfire Season Forecast Forecast 2021 May 20, 2021 Richard Carr, Wildland Fire Research Analyst, Canadian Forest Service, Natural Resources Canada
  • 3. 3 3 Wildland fire in Canada • Fire numbers and areas burned are highly variable • Number of fires decreasing; area burned increasing? • Consider better detection and suppression
  • 5. 5 5 2020 National Statistics MB/ON BC ON/QC Red line is 10-year mean Blue bars are 2020 data ~3620 / 5640=64% ~0.24 / 2.86 (million ha) = 8%
  • 8. 8 8 ENSO, PDO – Current SST ENSO 3.4 regions still a bit cool but La Nina has ended. Warming North Pacific.
  • 9. 9 9 Fire problems in ENSO Springs El Niño: • Warm, windy, dry in western Canada La Niña: •Arctic surface highs bring dry air, strong wind around edges •Temperature may be cool Summer fire problems may depend on other influences Year DJF JFM FMA MAM AMJ MJJ JJA JAS ASO SON OND NDJ 1991 0.4 0.3 0.2 0.3 0.5 0.6 0.7 0.6 0.6 0.8 1.2 1.5 1992 1.7 1.6 1.5 1.3 1.1 0.7 0.4 0.1 -0.1 -0.2 -0.3 -0.1 1993 0.1 0.3 0.5 0.7 0.7 0.6 0.3 0.3 0.2 0.1 0.0 0.1 1994 0.1 0.1 0.2 0.3 0.4 0.4 0.4 0.4 0.6 0.7 1.0 1.1 1995 1.0 0.7 0.5 0.3 0.1 0.0 -0.2 -0.5 -0.8 -1.0 -1.0 -1.0 1996 -0.9 -0.8 -0.6 -0.4 -0.3 -0.3 -0.3 -0.3 -0.4 -0.4 -0.4 -0.5 1997 -0.5 -0.4 -0.1 0.3 0.8 1.2 1.6 1.9 2.1 2.3 2.4 2.4 1998 2.2 1.9 1.4 1.0 0.5 -0.1 -0.8 -1.1 -1.3 -1.4 -1.5 -1.6 1999 -1.5 -1.3 -1.1 -1.0 -1.0 -1.0 -1.1 -1.1 -1.2 -1.3 -1.5 -1.7 2000 -1.7 -1.4 -1.1 -0.8 -0.7 -0.6 -0.6 -0.5 -0.5 -0.6 -0.7 -0.7 2001 -0.7 -0.5 -0.4 -0.3 -0.3 -0.1 -0.1 -0.1 -0.2 -0.3 -0.3 -0.3 2002 -0.1 0.0 0.1 0.2 0.4 0.7 0.8 0.9 1.0 1.2 1.3 1.1 2003 0.9 0.6 0.4 0.0 -0.3 -0.2 0.1 0.2 0.3 0.3 0.4 0.4 2004 0.4 0.3 0.2 0.2 0.2 0.3 0.5 0.6 0.7 0.7 0.7 0.7 2005 0.6 0.6 0.4 0.4 0.3 0.1 -0.1 -0.1 -0.1 -0.3 -0.6 -0.8 2006 -0.8 -0.7 -0.5 -0.3 0.0 0.0 0.1 0.3 0.5 0.7 0.9 0.9 2007 0.7 0.3 0.0 -0.2 -0.3 -0.4 -0.5 -0.8 -1.1 -1.4 -1.5 -1.6 2008 -1.6 -1.4 -1.2 -0.9 -0.8 -0.5 -0.4 -0.3 -0.3 -0.4 -0.6 -0.7 2009 -0.8 -0.7 -0.5 -0.2 0.1 0.4 0.5 0.5 0.7 1.0 1.3 1.6 2010 1.5 1.3 0.9 0.4 -0.1 -0.6 -1.0 -1.4 -1.6 -1.7 -1.7 -1.6 2011 -1.4 -1.1 -0.8 -0.6 -0.5 -0.4 -0.5 -0.7 -0.9 -1.1 -1.1 -1.0 2012 -0.8 -0.6 -0.5 -0.4 -0.2 0.1 0.3 0.3 0.3 0.2 0.0 -0.2 2013 -0.4 -0.3 -0.2 -0.2 -0.3 -0.3 -0.4 -0.4 -0.3 -0.2 -0.2 -0.3 2014 -0.4 -0.4 -0.2 0.1 0.3 0.2 0.1 0.0 0.2 0.4 0.6 0.7 2015 0.6 0.6 0.6 0.8 1.0 1.2 1.5 1.8 2.1 2.4 2.5 2.6 2016 2.5 2.2 1.7 1.0 0.5 0.0 -0.3 -0.6 -0.7 -0.7 -0.7 -0.6 2017 -0.3 -0.1 0.1 0.3 0.4 0.4 0.2 -0.1 -0.4 -0.7 -0.9 -1.0 2018 -0.9 -0.8 -0.6 -0.4 -0.1 0.1 0.1 0.2 0.4 0.7 0.9 0.8 2019 0.7 0.7 0.7 0.7 0.5 0.5 0.3 0.1 0.2 0.3 0.5 0.5 2020 0.5 0.5 0.4 0.2 -0.1 -0.3 -0.4 -0.6 -0.9 -1.2 -1.3 -1.2 2021 -1.0 -0.9 -0.8 Large area burned Chisholm, AB Kelowna, BC Virginia Hills, AB Slave Lake, AB Fort McMurray, AB Big years in BC
  • 11. 11 11 North Atlantic Oscillation http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao.timeseries.gif Quebec Area Burned (NFDB, ha*1000) 2020 69 2019 10 2018 86 2017 38 2016 33 2015 5 2014 64 2013 1900 2012 64 2011 12 2010 315 2009 94 2008 1 2007 343 2006 136 2005 800 2004 3 2003 88 2002 1000 2001 33 2000 39
  • 12. 12 Canadian Cryospheric Information Network, May 16, 2021 A 12 Fairly typical DC pattern Autumn Drought Code Snow depth anomaly (cm)
  • 13. 13 13 2021 Spring start-up conditions Past 3 months precipitation (May 10 percent of average)
  • 17. 17 JulyTemp GEM-NEMO cool still July Precip Dry south continues? 17 North American Multi-model Ensemble NMME
  • 20. 20 20 Canadian Forest Fire Weather Index (FWI) System Temperature Humidity, Wind, Rain Temperature, Humidity, Rain Wind Temperature, Rain Fire Weather Observations DC Drought Code DMC Duff Moisture Code ISI Initial Spread Index BUI Buildup Index FWI Fire Weather Index FFMC Fine Fuel Moisture Code Fire Behavior Indexes Fuel Moisture Codes Snow depth Barometric Pressure Horizontal Visibility Cloud cover and type Upper air data DSR/MSR/SSR Severity Rating Seasonal forecasts use the severity rating anomaly
  • 21. 21 Climate Ensemble Data: CanSIPS • Models developed by Canadian Centre for Climate modeling and analysis • Models: • CanCM4i • GEM-NEMO: Global Environmental Multiscale – Nucleus for European Modeling of the Ocean • 10-member ensembles producing 12-month forecasts • NRCan uses temperature and precipitation data 21
  • 22. 22 22 NRCan-CFS NASFAO and BN Maps Visual assessment of other data sources used in Briefing Notes (BN) and North American Seasonal Forecast Outlook Assessment (NASFAO) + = Include on CWFIS? Example only
  • 23. 23 Anomaly Predicted values normalized against average weather 23 NRCan-CFS Prediction: May run, for May and June
  • 24. 24 24 Anomaly Predicted values normalized against average weather NRCan-CFS Prediction: May run, for July
  • 25. 25 25 Anomaly Predicted values normalized against average weather NRCan-CFS Prediction: May run, for August
  • 26. 26 26 Anomaly Predicted values normalized against average weather NRCan-CFS Prediction: May run, for Sept.
  • 27. 27 Temperature Precipitation Yellowknife, NT, May 2021 run 27 https://www.ndstudies.gov GEM-NEMO (top) forecasts lower temperature and severity rating than CM4i (bottom)
  • 28. 28 Temperature Precipitation The Pas, MB, May 2021 run 28 https://www.ndstudies.gov GEM-NEMO (top) and CM4i (bottom) forecast warm and dry
  • 29. 29 29 Season to Date – CIFFC (May 19) Fires: 75% Area: 185% Compared to 20-year averages
  • 30. 30 A Canadian Wildland Fire Information System (CWFIS) 30
  • 31. 31 • Climate model limitations • New runs may differ substantially from previous ones • Weather often changes partway through a month • Fire activity depends on ignitions • Lightning • Human-caused 31 Caveats …
  • 32. 32 • Weak climatic drivers may produce fluctuating weather patterns • Model consensus points to cool northwest, dry south • Much of dry and warm area in agricultural areas • This depiction may point to a normal fire year, if ignitions levels are normal • Southern boreal may be very active 32 Conclusions …
  • 33. 33 • Canada’s ~6000-8000 fires burn 2-3 million ha yearly • Fires with serious consequences may occur in any year • Or where forecast indicates below normal conditions • Check updates • Seasonal forecast: first few days each month on CWFIS • Daily conditions: provincial and/or CWFIS web sites 33 Things to remember … Government of Ontario
  • 34. 34 34 Questions? Contact: Richard Carr Fire Research Analyst Natural Resources Canada – Canadian Forest Service Richard.Carr@canada.ca 5320 122 Street NW Edmonton, AB, Canada T6H 3S5 825-510-1265 780-710-3147 ? ? ? ? ?
  • 35. 35 Arctic Oscillation http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/month.ao.gif 14H x 10.5W Quebec Area Burned (NFDB, ha*1000) 2020 69 2019 10 2018 86 2017 38 2016 33 2015 5 2014 64 2013 1900 2012 64 2011 12 2010 315 2009 94 2008 1 2007 343 2006 136 2005 800 2004 3 2003 88 2002 1000 2001 33 2000 39
  • 36. 36 • More CFS staff = more help for upgrades: • Predictive Services group? • CWFIF project? • More input locations • Additional model output (wind speed, snowmelt, ...) • Other data sources and models • Validation 36 Possible improvements …