Sign in

Ontario Weather Alerts

@onwxalerts.bsky.social
2.4K followers 0 following 3.5K posts

Ontario Weather Alerts from Environment Canada Data. This is an unofficial convenience service NOT affiliated with ECCC. Please consult ECCC for official alerts weather.gc.ca Updates every 5 minutes Bot By @JayIsPainting.earthskyart.ca

PostsRepliesMedia
Ontario Weather Alerts @onwxalerts.bsky.social · 44m
09:17 Oct 05 2026 YELLOW WARNING - WIND - IN EFFECT for Far Northern Ontario Expires: 23:02 Oct 05 2026 Damaging winds are occurring. What: Strong winds with gusts up to 90 km/h possible. Particularly along the James Bay coast. When: Continuing this af... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 04/10/2026
06:42 Oct 04 2026 YELLOW ADVISORY - FROST - ENDED for Gatineau Expires: 07:42 Oct 04 2026 Widespread frost is no longer expected. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 03/10/2026
16:37 Oct 03 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 08:37 Oct 04 2026 Temperatures are expected to fall to near the freezing mark tonight into Sunday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 03/10/2026
08:40 Oct 03 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 00:40 Oct 04 2026 Temperatures are expected to fall to near the freezing mark tonight into Sunday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 01/10/2026
06:15 Oct 01 2026 YELLOW ADVISORY - FOG - ENDED for Northern Ontario Expires: 07:15 Oct 01 2026 Poor visibility in fog is no longer expected. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 30/09/2026
16:35 Sep 30 2026 YELLOW ADVISORY - FOG - IN EFFECT for Northern Ontario Expires: 08:35 Oct 01 2026 Near-zero visibility in fog is expected. Areas of dense fog will remain in place tonight and lift Thursday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 30/09/2026
07:26 Sep 30 2026 YELLOW ADVISORY - FOG - IN EFFECT for Northern Ontario Expires: 23:26 Sep 30 2026 Near-zero visibility in fog is expected. Dense fog has settled into the region. While visibility may improve at times this afternoon, the dense fog is ex... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 29/09/2026
09:03 Sep 29 2026 YELLOW ADVISORY - FOG - ENDED for Southern Ontario Expires: 10:03 Sep 29 2026 Poor visibility in fog is no longer expected. ... Visit weather.gc.ca for details
001
Ontario Weather Alerts @onwxalerts.bsky.social · 28/09/2026
08:19 Sep 28 2026 YELLOW ADVISORY - FOG - ENDED for Northern Ontario Expires: 09:19 Sep 28 2026 Poor visibility in fog is no longer expected. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 26/09/2026
07:21 Sep 26 2026 YELLOW ADVISORY - FROST - ENDED for Southern Ontario Expires: 08:21 Sep 26 2026 Widespread frost is no longer expected. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 25/09/2026
07:10 Sep 25 2026 YELLOW ADVISORY - FROST - ENDED for Southern Ontario Expires: 08:10 Sep 25 2026 Widespread frost is no longer expected. ... Visit weather.gc.ca for details
011
Ontario Weather Alerts @onwxalerts.bsky.social · 24/09/2026
13:19 Sep 24 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 05:19 Sep 25 2026 Patchy frost is expected Friday morning. ... Visit weather.gc.ca for details
100
Ontario Weather Alerts @onwxalerts.bsky.social · 24/09/2026
07:36 Sep 24 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 23:36 Sep 24 2026 Patchy frost is expected Friday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 23/09/2026
13:12 Sep 23 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 05:12 Sep 24 2026 Patchy frost will return Thursday morning. Frost may return to some areas Friday morning. ... Visit weather.gc.ca for details
111
Ontario Weather Alerts @onwxalerts.bsky.social · 23/09/2026
07:06 Sep 23 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 23:06 Sep 23 2026 Patchy frost will return Thursday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 22/09/2026
15:09 Sep 22 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 07:09 Sep 23 2026 Patchy frost is likely in many regions again on Wednesday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 22/09/2026
08:33 Sep 22 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 00:33 Sep 23 2026 Patchy frost is likely in many regions again on Wednesday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 21/09/2026
15:35 Sep 21 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 07:35 Sep 22 2026 Conditions are favourable for the development of frost tonight. Patchy frost is likely early Tuesday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 21/09/2026
10:50 Sep 21 2026 YELLOW ADVISORY - FROST - IN EFFECT for Gatineau Expires: 02:50 Sep 22 2026 Conditions are favourable for the development of frost tonight. Patchy frost is likely early Tuesday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 21/09/2026
09:08 Sep 21 2026 YELLOW ADVISORY - FROST - IN EFFECT for Southern Ontario Expires: 01:08 Sep 22 2026 Patchy frost is possible early Tuesday morning. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 20/09/2026
16:24 Sep 20 2026 YELLOW ADVISORY - FROST - IN EFFECT for Northern Ontario Expires: 08:24 Sep 21 2026 Freezing temperatures with frost are expected tonight. Patchy frost is expected early Monday morning as temperatures fall to near the freezing mark. T... Visit weather.gc.ca for details
110
Ontario Weather Alerts @onwxalerts.bsky.social · 20/09/2026
12:12 Sep 20 2026 YELLOW ADVISORY - FROST - IN EFFECT for Southern Ontario Expires: 04:12 Sep 21 2026 Freezing temperatures with frost are expected tonight. Patchy frost is expected early Monday morning as temperatures fall to near the freezing mark. P... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 20/09/2026
11:59 Sep 20 2026 YELLOW ADVISORY - FROST - IN EFFECT for Southern Ontario Expires: 03:59 Sep 21 2026 Freezing temperatures with frost are expected tonight. Patchy frost is expected early Monday morning as temperatures fall to near the freezing mark. P... Visit weather.gc.ca for details
011
Ontario Weather Alerts @onwxalerts.bsky.social · 20/09/2026
10:49 Sep 20 2026 YELLOW ADVISORY - FROST - IN EFFECT for Northern Ontario Expires: 02:49 Sep 21 2026 Freezing temperatures with frost are expected tonight. Patchy frost is expected early Monday morning as temperatures fall to near the freezing mark. T... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 20/09/2026
09:26 Sep 20 2026 YELLOW ADVISORY - FROST - ENDED for Northern Ontario Expires: 10:26 Sep 20 2026 Widespread frost is no longer expected. ... Visit weather.gc.ca for details
011
Ontario Weather Alerts @onwxalerts.bsky.social · 19/09/2026
14:04 Sep 19 2026 YELLOW ADVISORY - FROST - IN EFFECT for Northern Ontario Expires: 06:04 Sep 20 2026 Freezing temperatures with frost are expected tonight. Patchy frost is expected early Sunday morning as temperatures fall to near the freezing mark. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 19/09/2026
09:23 Sep 19 2026 YELLOW ADVISORY - FROST - IN EFFECT for Northern Ontario Expires: 01:23 Sep 20 2026 Freezing temperatures with frost are expected tonight. Patchy frost is expected early Sunday morning as temperatures fall to near the freezing mark. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 18/09/2026
13:19 Sep 18 2026 YELLOW ADVISORY - FROST - IN EFFECT for Southern Ontario Expires: 05:19 Sep 19 2026 Patchy frost is expected overnight into Saturday morning as temperatures fall to near the freezing mark. ... Visit weather.gc.ca for details
001
Ontario Weather Alerts @onwxalerts.bsky.social · 18/09/2026
09:12 Sep 18 2026 YELLOW ADVISORY - FROST - IN EFFECT for Southern Ontario Expires: 01:12 Sep 19 2026 Patchy frost is expected overnight into Saturday morning as temperatures fall to near the freezing mark. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 17/09/2026
13:57 Sep 17 2026 YELLOW ADVISORY - FROST - IN EFFECT for Northern Ontario Expires: 05:57 Sep 18 2026 Patchy frost is expected early Friday morning as temperatures drop to near freezing. ... Visit weather.gc.ca for details
011
Ontario Weather Alerts @onwxalerts.bsky.social · 16/09/2026
07:15 Sep 16 2026 YELLOW ADVISORY - FROST - ENDED for Northern Ontario Expires: 08:15 Sep 16 2026 Widespread frost is no longer expected. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 15/09/2026
16:03 Sep 15 2026 SPECIAL WEATHER STATEMENT ENDED for Northern Ontario Expires: 17:03 Sep 15 2026 ... Visit weather.gc.ca for details
010
Ontario Weather Alerts @onwxalerts.bsky.social · 15/09/2026
11:37 Sep 15 2026 SPECIAL WEATHER STATEMENT IN EFFECT for Northern Ontario Expires: 19:00 Sep 15 2026 Gusty southwesterly winds expected. What: Southwesterly wind gusts up to 80 km/h. When: This afternoon. Additional information: Southerly winds will ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 15/09/2026
03:14 Sep 15 2026 YELLOW ADVISORY - FROST - ENDED for Southern Ontario Expires: 04:14 Sep 15 2026 Widespread frost is no longer expected. ... Visit weather.gc.ca for details
010
Ontario Weather Alerts @onwxalerts.bsky.social · 15/09/2026
17:15 Sep 14 2026 SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe Expires: 21:15 Sep 14 2026 Squalls with wind gusts up to 35 knots are expected or occurring in the area. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 14/09/2026
09:26 Sep 14 2026 YELLOW ADVISORY - FROST - IN EFFECT for Southern Ontario Expires: 01:26 Sep 15 2026 Patchy frost is expected tonight into Tuesday morning as temperatures drop to near the freezing mark. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 14/09/2026
17:04 Sep 13 2026 SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe Expires: 20:02 Sep 13 2026 Squalls with wind gusts up to 35 knots are expected or occurring in the area. ... Visit weather.gc.ca for details
010
Ontario Weather Alerts @onwxalerts.bsky.social · 13/09/2026
16:13 Sep 13 2026 SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe Expires: 19:12 Sep 13 2026 Squalls with wind gusts up to 35 knots are expected or occurring in the area. ... Visit weather.gc.ca for details
011
Ontario Weather Alerts @onwxalerts.bsky.social · 13/09/2026
17:04 Sep 12 2026 YELLOW WATCH - SEVERE THUNDERSTORM - ENDED for Northern Ontario Expires: 18:04 Sep 12 2026 Conditions are no longer favourable for the development of severe thunderstorms. ... Visit weather.gc.ca for details
021
Ontario Weather Alerts @onwxalerts.bsky.social · 12/09/2026
16:04 Sep 12 2026 YELLOW WATCH - SEVERE THUNDERSTORM - IN EFFECT for Northern Ontario Expires: 20:02 Sep 12 2026 Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts. What: Wind gusts n... Visit weather.gc.ca for details
021
Ontario Weather Alerts @onwxalerts.bsky.social · 12/09/2026
14:39 Sep 12 2026 YELLOW WATCH - SEVERE THUNDERSTORM - IN EFFECT for Northern Ontario Expires: 18:00 Sep 12 2026 Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts. What: Wind gusts n... Visit weather.gc.ca for details
021
Ontario Weather Alerts @onwxalerts.bsky.social · 12/09/2026
13:18 Sep 12 2026 SQUALL WATCH ENDED for Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River Expires: 14:18 Sep 12 2026 Squalls are no longer expected over the area. ... Visit weather.gc.ca for details
011
Ontario Weather Alerts @onwxalerts.bsky.social · 12/09/2026
11:15 Sep 12 2026 SQUALL WATCH IN EFFECT for Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River Expires: 18:01 Sep 12 2026 Conditions are favourable for the development of squalls with wind gusts up to 35 knots and poor... Visit weather.gc.ca for details
021
Ontario Weather Alerts @onwxalerts.bsky.social · 12/09/2026
11:15 Sep 12 2026 SQUALL WATCH IN EFFECT for Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River Expires: 18:01 Sep 12 2026 Conditions are favourable for the development of squalls with wind gusts up to 35 knots and poor... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 12/09/2026
01:10 Sep 12 2026 YELLOW WARNING - RAINFALL - ENDED for Northern Ontario Expires: 02:10 Sep 12 2026 Significant rainfall is no longer expected. ... Visit weather.gc.ca for details
010
Ontario Weather Alerts @onwxalerts.bsky.social · 11/09/2026
16:23 Sep 11 2026 YELLOW WARNING - RAINFALL - IN EFFECT for Northern Ontario Expires: 01:01 Sep 12 2026 Rain, at times heavy, and thunderstorms tonight. What: Total rainfall amounts in excess of 50 mm. Peak rainfall rates of 40 mm in an hour. When: Con... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 11/09/2026
15:17 Sep 11 2026 SQUALL WATCH IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe Expires: 03:00 Sep 12 2026 Thunderstorms will be capable of wind gusts up to 40 knots tonight. ... Visit weather.gc.ca for details
012
Ontario Weather Alerts @onwxalerts.bsky.social · 11/09/2026
13:10 Sep 11 2026 YELLOW WATCH - SEVERE THUNDERSTORM - IN EFFECT for Northern Ontario Expires: 02:02 Sep 12 2026 Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heav... Visit weather.gc.ca for details
010
Ontario Weather Alerts @onwxalerts.bsky.social · 09/09/2026
16:14 Sep 09 2026 SQUALL WATCH ENDED for Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River Expires: 17:14 Sep 09 2026 Squalls are no longer expected over the area. ... Visit weather.gc.ca for details
000
Ontario Weather Alerts @onwxalerts.bsky.social · 09/09/2026
15:38 Sep 09 2026 SQUALL WARNING IN EFFECT for Lake of the Woods Lake Nipigon North Channel Lake Nipissing and Lake Simcoe Expires: 18:00 Sep 09 2026 Squalls with wind gusts up to 35 knots and frequent lightning are expected or occurring in the area. ... Visit weather.gc.ca for details
000