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*****  Personal Fire Website from 2019****

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Boreal Forest Fire Situations: Preliminary Report 

(issued: July 28 2019, revised: Aug.10 2019)

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The information on this website is personally created.

Therefore, I don’t compensate any kind of damages, dangerous matters, and so on resulting from the information on this website.

If you have any questions, comments, and so on, contact with me by e-mail. hhaya05@me.com

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Boreal Fires from July 1 to 26, 2019

Active fires are occurring in "Northern Baikal", "Alaska" & a few regions 

Your target region will be evaluated in the following steps 1 to 4. 

Northern Baikal 

Alaska 

1. Boreal Fires in the target region (June 1 to Ag. 9, 2019).  

Northern Baikal 

Hotspot Peak July 23

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Alaska 

Hotspot Peak July 8

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2. Boreal Fires and cTe (warm Air mass, continental temperate) on hotspot peak day (July 8 and 23, 2019)  

The hotspot peaks (very active fires) occurred related to warm and dry air mass (cTe) from the south. Movements of warm and dry air masses can be easily visualized by making a daily temperature map. This means we can forecast active fires just before a few days. Therefore, this relationship fires and cTe will be included in future fire forecasts

(details are in References in the bottom).

Hotspot Peak July 23

​Northern Baikal

Hotspot Peak July 8

​Alaska

3. Upper air weather conditions (500 hPa) -  large meandering westerlies  

High-pressure systems at upper air making warm and dry conditions or the requirement conditions for activ fires.

Key players will be found from this kind of averaged weather maps during active fire-period.

Northern Baikal - upper air level 

Alaska- upper air level 

4. Low air weather conditions (925 hPa) -  Strong wind  

The large height gradient over the fire region suggests relatively high wind velocity and one of reasons for hotspots peak.

Northern Baikal - lower air level 

Hotspot Peak July 23​

Alaska- lower air level  

Hotspot Peak July 8​

Fire near Swan Lake, Kenai Peninsula Alaska

August 26, 2019 

Photo by Frank V. Cole

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Alaska & Souther Sakha Fire History from References in the bottom will be shown soon.

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References

H. Hayasaka, K. Yamazaki, and D. Naito, “Weather Conditions and Warm Air Masses in Southern Sakha During Active Forest Fire Periods”, J. Disaster Res., Vol.14, No.4, pp. 641-648, 2019.

https://doi.org/10.20965/jdr.2019.p0641

https://www.fujipress.jp/jdr/dr/ (free)

 

H. Hayasaka, K. Yamazaki, and D. Naito, “Weather Conditions and Warm Air Masses during Active Fire-periods in Boreal Forests”, Polar Science, In press.

https://doi.org/10.1016/j.polar.2019.07.002

Impact Factor: 1.190

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(Fires in Alaska)

Hiroshi Hayasaka, Hiroshi L. Tanaka, Peter A. Bieniek, Synoptic-scale fire weather conditions in Alaska, Volume 10, Issue 3, Polar Science, pp. 217-226, 2016.

http://dx.doi.org/10.1016/j.polar.2016.05.001

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