Alert archive / New York / St. Lawrence County
Weather alerts in St. Lawrence County, New York, 2021
103 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
St. Lawrence County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 103
- Warnings
- 17
- Watches
- 7
- Advisories
- 25
- Busiest month
- July24 alerts
- Busiest day
- March 1, 20219 alerts
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 15, 3:29 AM EST | Winter Weather Advisory | BTV | 60 hr |
| Jan 19, 9:01 AM EST | Winter Weather Advisory | BTV | 13 hr |
| Jan 23, 3:14 AM EST | Wind Chill Advisory | BTV | 31 hr |
| Jan 28, 3:09 AM EST | Wind Chill Advisory | BTV | 55 hr |
| Jan 31, 3:54 AM EST | Winter Storm Watch | BTV | 12 hr |
| Jan 31, 3:37 PM EST | Winter Storm Warning | BTV | 72 hr |
| Jan 31, 3:37 PM EST | Winter Weather Advisory | BTV | 63 hr |
| Feb 5, 3:31 AM EST | Lake Effect Snow Warning | BTV | 42 hr |
| Feb 5, 3:31 AM EST | Winter Weather Advisory | BTV | 14 hr |
| Feb 11, 2:52 AM EST | Wind Chill Advisory | BTV | 26 hr |
| Feb 13, 3:22 PM EST | Winter Storm Watch | BTV | 24 hr |
| Feb 14, 3:10 PM EST | Winter Storm Warning | BTV | 43 hr |
| Feb 15, 8:06 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 16, 9:45 AM EST | Winter Weather Advisory | BTV | 112 min |
| Feb 28, 6:05 PM EST | Wind Chill Advisory | BTV | 40 hr |
| Mar 1, 11:43 AM EST | Special Weather Statement | BTV | 47 min |
| Mar 1, 12:28 PM EST | Special Weather Statement | BTV | 47 min |
| Mar 1, 1:10 PM EST | Special Weather Statement | BTV | 50 min |
| Mar 1, 1:59 PM EST | Special Weather Statement | BTV | 46 min |
| Mar 1, 2:33 PM EST | Special Weather Statement | BTV | 42 min |
| Mar 1, 3:13 PM EST | Special Weather Statement | BTV | 47 min |
| Mar 1, 4:06 PM EST | Special Weather Statement | BTV | 39 min |
| Mar 1, 4:45 PM EST | Special Weather Statement | BTV | 45 min |
| Mar 1, 6:39 PM EST | Special Weather Statement | BTV | 51 min |
| Mar 1, 7:29 PM EST | Special Weather Statement | BTV | 46 min |
| Mar 2, 2:45 PM EST | Winter Weather Advisory | BTV | 24 hr |
| Mar 14, 3:23 AM EDT | Wind Chill Advisory | BTV | 31 hr |
| Mar 26, 10:13 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 26, 11:08 AM EDT | Special Weather Statement | BTV | 37 min |
| Mar 26, 11:11 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 26, 11:30 AM EDT | Severe Thunderstorm Warning | BTV | 45 min |
| Mar 26, 12:13 PM EDT | Severe Thunderstorm Warning | BTV | 47 min |
| Mar 30, 3:51 AM EDT | Winter Storm Watch | BTV | 24 hr |
| Mar 31, 4:02 AM EDT | Winter Storm Warning | BTV | 23 hr |
| Mar 31, 4:02 AM EDT | Winter Weather Advisory | BTV | 33 hr |
| Apr 18, 3:47 PM EDT | Special Weather Statement | BTV | 28 min |
| Apr 20, 3:19 PM EDT | Winter Weather Advisory | BTV | 29 hr |
| May 12, 3:14 AM EDT | Frost Advisory | BTV | 28 hr |
| May 27, 3:51 AM EDT | Frost Advisory | BTV | 27 hr |
| Jun 13, 10:42 PM EDT | Special Weather Statement | BTV | 48 min |
| Jun 13, 11:33 PM EDT | Special Weather Statement | BTV | 42 min |
| Jun 14, 1:15 AM EDT | Special Weather Statement | BTV | 60 min |
| Jun 21, 7:59 AM EDT | Special Weather Statement | BTV | 61 min |
| Jun 21, 12:31 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 21, 1:06 PM EDT | Special Weather Statement | BTV | 39 min |
| Jun 21, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 21, 1:28 PM EDT | Special Weather Statement | BTV | 62 min |
| Jun 21, 1:41 PM EDT | Severe Thunderstorm Warning | BTV | 49 min |
| Jun 21, 2:08 PM EDT | Special Weather Statement | BTV | 67 min |
| Jun 21, 2:35 PM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| Jun 21, 3:25 PM EDT | Severe Thunderstorm Warning | BTV | 54 min |
| Jun 29, 3:18 PM EDT | Special Weather Statement | BTV | 57 min |
| Jun 30, 4:50 PM EDT | Special Weather Statement | BTV | 55 min |
| Jul 5, 9:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 9:53 PM EDT | Special Weather Statement | BTV | 37 min |
| Jul 5, 10:31 PM EDT | Special Weather Statement | BTV | 44 min |
| Jul 8, 7:35 PM EDT | Severe Thunderstorm Warning | BTV | 55 min |
| Jul 13, 5:06 PM EDT | Special Weather Statement | BTV | 54 min |
| Jul 13, 6:03 PM EDT | Special Weather Statement | BTV | 87 min |
| Jul 13, 6:49 PM EDT | Special Weather Statement | BTV | 56 min |
| Jul 13, 7:10 PM EDT | Severe Thunderstorm Warning | BTV | 65 min |
| Jul 13, 7:27 PM EDT | Severe Thunderstorm Warning | BTV | 48 min |
| Jul 13, 9:40 PM EDT | Special Weather Statement | BTV | 80 min |
| Jul 13, 10:27 PM EDT | Special Weather Statement | BTV | 63 min |
| Jul 15, 11:16 PM EDT | Special Weather Statement | BTV | 59 min |
| Jul 16, 12:03 AM EDT | Special Weather Statement | BTV | 57 min |
| Jul 19, 7:57 PM EDT | Special Weather Statement | BTV | 63 min |
| Jul 20, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 3:05 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 20, 3:53 PM EDT | Severe Thunderstorm Warning | BTV | 52 min |
| Jul 20, 4:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 20, 4:44 PM EDT | Severe Thunderstorm Warning | BTV | 61 min |
| Jul 26, 4:41 PM EDT | Special Weather Statement | BTV | 49 min |
| Jul 26, 5:22 PM EDT | Special Weather Statement | BTV | 23 min |
| Jul 26, 5:49 PM EDT | Special Weather Statement | BTV | 26 min |
| Jul 26, 6:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 26, 6:18 PM EDT | Special Weather Statement | BTV | 27 min |
| Aug 1, 11:43 AM EDT | Special Weather Statement | BTV | 62 min |
| Aug 7, 3:45 PM EDT | Special Weather Statement | BTV | 90 min |
| Aug 9, 3:22 PM EDT | Heat Advisory | BTV | 4 days |
| Aug 10, 11:37 PM EDT | Special Weather Statement | BTV | 38 min |
| Aug 12, 11:03 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 3:21 AM EDT | Heat Advisory | BTV | 16 hr |
| Aug 21, 4:07 PM EDT | Special Weather Statement | BTV | 23 min |
| Sep 6, 7:34 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 6, 10:01 AM EDT | Special Weather Statement | BTV | 29 min |
| Sep 6, 10:47 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 6, 10:50 AM EDT | Special Weather Statement | BTV | 25 min |
| Nov 12, 6:34 AM EST | Special Weather Statement | BTV | 86 min |
| Nov 12, 6:52 AM EST | Special Weather Statement | BTV | 83 min |
| Nov 25, 2:59 AM EST | Winter Storm Watch | BTV | 12 hr |
| Nov 25, 3:21 PM EST | Winter Storm Warning | BTV | 37 hr |
| Nov 25, 3:21 PM EST | Winter Weather Advisory | BTV | 37 hr |
| Dec 4, 2:21 PM EST | Special Weather Statement | BTV | 39 min |
| Dec 4, 3:23 PM EST | Wind Advisory | BTV | 59 hr |
| Dec 6, 12:11 AM EST | Winter Weather Advisory | BTV | 7 hr |
| Dec 10, 3:36 AM EST | Winter Weather Advisory | BTV | 30 hr |
| Dec 10, 2:47 PM EST | High Wind Warning | BTV | 37 hr |
| Dec 15, 3:35 AM EST | Wind Advisory | BTV | 51 hr |
| Dec 17, 3:30 PM EST | Winter Storm Warning | BTV | 36 hr |
| Dec 17, 3:30 PM EST | Winter Weather Advisory | BTV | 31 hr |
| Dec 24, 3:43 AM EST | Winter Weather Advisory | BTV | 51 hr |
| Dec 27, 7:38 PM EST | Winter Weather Advisory | BTV | 8 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 10 |
| Severe Thunderstorm Watch | 3 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 44 |
| Winter | |
| Lake Effect Snow Warning | 1 |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 14 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Frost Advisory | 2 |
| Wind Chill Advisory | 5 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 2 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.