BC has issued a state of emergency due to quickly-intensifying wildfires in the interior, the first such declaration on this scale since the infamous fires of summer 2003. Evacuation orders have been given for thousands; in the case of the fire near 100 Mile House the number is in the range of 3600 people.
As many as 138 fires developed yesterday as recent weather conditions have acutely heightened the risk, sparked in part by a trough moving in which has delivered unhelpful winds and lightning without much in the way of precipitation.
This is the most recent fire danger map from the CWFIS showing widespread extreme values for BC and the southern Prairies:
Also the head fire intensity map, which can be used to estimate the level of difficulty in controlling an ongoing fire:
Upper ridging which has been so dominant over the western part of the country/continent seems likely to continue over the span of the mid-range with the core of the anomalous heat likely centered through S AB and SK. This isn’t going to do much to improve conditions with the expected combination of heat and below-average precip.
Forecast 2m temp anomalies from the 00z GFS ensembles, days 1-5:
Precip anomalies, days 1-7:
A slew of new daily highs were also set across the region yesterday in association with the notable H5 ridge.
Here is the list from EC.
Weather summary for the Northwest Territories issued by Environment Canada at 9:11 p.m. MDT Friday 7 July 2017. Discussion. With a sunny and hot day throughout the MacKenzie Valley the following locations set new record high temperatures (values given in degrees Celsius): FORT SIMPSON New record of 31.2 Old record of 30.6 set in 1961 Records started in 1897 INUVIK New record of 29.9 Old record of 29.4 set in 1990 Records started in 1957 NORMAN WELLS New record of 32.0 Old record of 30.5 set in 1982 Records started in 1943 The following locations saw near-record high temperatures (values given in degrees Celsius): YELLOWKNIFE Near-record of 28.0 Record of 28.3 set in 1982 Records started in 1942 Please note that this summary may contain preliminary or unofficial information and does not constitute a complete or final report. End/PASPC
Weather summary for British Columbia issued by Environment Canada at 8:31 p.m. PDT Friday 7 July 2017. Discussion. A strong, upper ridge of high pressure over southern British Columbia this week is giving high temperatures. Several daily records were broken on Friday, July 7. Summary of daily temperature records in degrees celcius. Blue River area 34.8 (previous record 33.3 in 1970) Castlegar area 38.7 (previous record 35.0 in 1968) Clearwater area 37.7 (previous record 36.1 in 1970) Clinton area 29.5 (previous record 29.4 in 2015) Cranbrook area 36.3 (previous record 33.3 in 1943) Creston area 37.4 (previous record 33.3 in 1960) Dawson creek area 28.4 (previous record 28.0 in 2010) Fort St. John area 27.3 (tied previous record 27.3 in 2010) Golden area 35.3 (previous record 33.9 in 1906) Mackenzie area 31.0 (previous record 30.0 in 2015) Muncho Lake area 29.3 (previous record 27.0 in 1982) Osoyoos area 37.8 (tied previous record 36.3 in 2015) Prince George area 32.2 (tied previous record 32.2 in 1920) Salmon Arm area 35.2 (previous record 35.0 in 1908) Sparwood area 33.6 (previous record 31.0 in 2002) Summerland area 36.4 (previous record 35.6 in 1970) Vernon area 34.5 (tied previous record 34.5 in 2015) Williams Lake area 31.1 (previous record 29.7 in 2015) Yoho (National Park) area 30.0 (previous record 27.8 in 1968) Please note that this summary may contain preliminary or unofficial information and does not constitute a complete or final report. End/PSPC
Weather summary for Alberta issued by Environment Canada at 9:08 p.m. MDT Friday 7 July 2017. Discussion. As a week of hot temperatures in Alberta continues, the following locations set new record high temperatures (values given in degrees Celsius): BANFF New record of 31.4 Old record of 29.4 set in 1906 Records started in 1893 CLARESHOLM New record of 36.1 Old record of 33.0 set in 1985 Records started in 1952 JASPER WARDEN New record of 33.5 Old record of 30.0 set in 1970 Records started in 1916 LETHBRIDGE New record of 36.7 Old record of 35.6 set in 1886 Records started in 1886 PEACE RIVER New record of 29.6 Old record of 28.3 set in 1963 Records started in 1944 PINCHER CREEK New record of 33.2 Old record of 32.8 set in 1943 Records started in 1894 SUNDRE New record of 31.2 Old record of 29.0 set in 1985 Records started in 1985 VAUXHALL New record of 36.2 Old record of 35.7 set in 1989 Records started in 1914 WATERTON PARK GATE New record of 33.6 Old record of 30.0 set in 1985 Records started in 1966 Please note that this summary may contain preliminary or unofficial information and does not constitute a complete or final report. End/PASPC