845
FPCN15 CWWG 170839 AAE
UPDATED FORECASTS FOR SOUTHERN ALBERTA AND THE MOUNTAIN PARKS ISSUED
BY ENVIRONMENT CANADA AT 2:38 A.M. MDT THURSDAY 17 JULY 2025 FOR
TONIGHT THURSDAY AND THURSDAY NIGHT.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT.
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MAJOR REFERENCE ELEVATIONS:
BANFF: 1384 METRES.
LAKE LOUISE: 1750 METRES.
HIGHWAY 93 - BOW SUMMIT: 2068 METRES.
HIGHWAY 93 - SUNWAPTA PASS: 2034 METRES.
COLUMBIA ICEFIELDS VISITORS CENTRE: 2006 METRES.
JASPER: 1061 METRES.
CANMORE: 1350 METRES.
HWY 40 - HIGHWOOD PASS: 2206 METRES.
PINCHER CREEK: 1030 METRES.
WATERTON: 1280 METRES.
CROWSNEST PASS: 1300 METRES.
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CITY OF CALGARY.
TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 5 TO 10 MM. WIND
NORTHEAST 20 KM/H GUSTING TO 40. LOW 11.
THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 20 MM.
WIND NORTHEAST 20 KM/H GUSTING TO 40. HIGH 16. UV INDEX 3 OR
MODERATE.
THURSDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE
EVENING WITH RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. FOG PATCHES
DEVELOPING NEAR MIDNIGHT. LOW 9.
OKOTOKS - HIGH RIVER - CLARESHOLM.
TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 5 TO 10 MM.
LOW 10.
THURSDAY..SHOWERS ENDING IN THE AFTERNOON THEN A MIX OF SUN AND CLOUD
WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE
MORNING AND AFTERNOON. AMOUNT 10 TO 20 MM. WIND BECOMING NORTH
20 KM/H IN THE MORNING. HIGH 16. UV INDEX 5 OR MODERATE.
THURSDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING IN THE EVENING.
FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 7.
AIRDRIE - COCHRANE - OLDS - SUNDRE.
TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM.
LOW 9.
THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 15 MM.
WIND BECOMING NORTH 20 KM/H GUSTING TO 40 IN THE MORNING. HIGH 18.
UV INDEX 5 OR MODERATE.
THURSDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY
IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING IN THE EVENING.
FOG PATCHES DEVELOPING NEAR MIDNIGHT. LOW 7.
DRUMHELLER - THREE HILLS.
TONIGHT..MAINLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT.
SHOWERS BEGINNING OVERNIGHT. RISK OF A THUNDERSTORM OVERNIGHT. LOCAL
SMOKE OVERNIGHT. LOW 12.
THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 15 MM.
HIGH 18. UV INDEX 3 OR MODERATE.
THURSDAY NIGHT..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN
THE EVENING AND RISK OF A THUNDERSTORM. CLEARING NEAR MIDNIGHT. FOG
PATCHES DEVELOPING NEAR MIDNIGHT. LOW 9.
BROOKS - STRATHMORE - VULCAN.
TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. LOW 11.
THURSDAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 10 TO 15 MM.
HIGH 16. UV INDEX 3 OR MODERATE.
THURSDAY NIGHT..PARTLY CLOUDY. 60 PERCENT CHANCE OF SHOWERS IN THE
EVENING WITH RISK OF A THUNDERSTORM. FOG PATCHES DEVELOPING NEAR
MIDNIGHT. LOW 9.
KANANASKIS - CANMORE.
TONIGHT..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 5 TO 10 MM.
LOW 8.
THURSDAY..SHOWERS ENDING IN THE AFTERNOON THEN A MIX OF SUN AND CLOUD
WITH 60 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM IN THE
MORNING AND AFTERNOON. AMOUNT 15 TO 25 MM. HIGH 15. UV INDEX 5 OR
MODERATE.
THURSDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS IN
THE EVENING AND RISK OF A THUNDERSTORM. CLEARING OVERNIGHT. FOG
PATCHES DEVELOPING NEAR MIDNIGHT. LOW 7.
REMAINDER UNCHANGED.
END
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