Alert archive / Minnesota / Sherburne County
Weather alerts in Sherburne County, Minnesota, 2019
107 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sherburne County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 107
- Warnings
- 24
- Watches
- 18
- Advisories
- 33
- Busiest month
- July23 alerts
- Busiest day
- July 15, 20197 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 2 tornado warnings covering Sherburne County in 2019 had a tornado report inside them.
Sherburne County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 11 | 9 | 18% | 13 | 92% | 15 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Twin Cities, MN: tornado warnings | 57 | 11 | 81% | 38 | 50% | 10 min |
| NWS Twin Cities, MN: severe thunderstorm warnings | 206 | 102 | 50% | 383 | 74% | 21 min |
| NWS Twin Cities, MN: flash flood warnings | 19 | 9 | 53% | 19 | 74% | 71 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 3:09 AM CST | Winter Weather Advisory | MPX | 30 hr |
| Jan 18, 3:11 PM CST | Wind Chill Advisory | MPX | 20 hr |
| Jan 24, 3:37 AM CST | Wind Chill Advisory | MPX | 29 hr |
| Jan 26, 3:26 AM CST | Winter Storm Watch | MPX | 12 hr |
| Jan 26, 3:36 PM CST | Winter Storm Warning | MPX | 44 hr |
| Jan 27, 4:03 AM CST | Wind Chill Watch | MPX | 25 hr |
| Jan 28, 4:33 AM CST | Wind Chill Warning | MPX | 3 days |
| Jan 28, 4:33 AM CST | Wind Chill Advisory | MPX | 31 hr |
| Feb 2, 9:41 AM CST | Dense Fog Advisory | MPX | 38 hr |
| Feb 3, 3:02 AM CST | Winter Weather Advisory | MPX | 33 hr |
| Feb 4, 3:56 PM CST | Winter Weather Advisory | MPX | 32 hr |
| Feb 5, 3:47 PM CST | Winter Weather Advisory | MPX | 56 hr |
| Feb 6, 2:34 PM CST | Winter Storm Warning | MPX | 33 hr |
| Feb 7, 3:47 AM CST | Wind Chill Advisory | MPX | 53 hr |
| Feb 11, 3:19 PM CST | Winter Weather Advisory | MPX | 30 hr |
| Feb 19, 3:42 AM CST | Winter Storm Warning | MPX | 44 hr |
| Feb 22, 4:01 PM CST | Blizzard Warning | MPX | 53 hr |
| Feb 23, 2:44 AM CST | Winter Storm Watch | MPX | 12 hr |
| Feb 24, 3:01 PM CST | Wind Chill Advisory | MPX | 17 hr |
| Feb 28, 9:42 PM CST | Winter Weather Advisory | MPX | 25 hr |
| Mar 2, 3:11 AM CST | Wind Chill Advisory | MPX | 57 hr |
| Mar 3, 3:21 AM CST | Wind Chill Advisory | MPX | 30 hr |
| Mar 7, 3:09 AM CST | Winter Storm Watch | MPX | 40 hr |
| Mar 8, 3:38 AM CST | Winter Storm Warning | MPX | 53 hr |
| Mar 9, 5:59 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Mar 11, 3:43 PM CDT | Flood Watch | MPX | 71 hr |
| Mar 12, 5:43 PM CDT | Dense Fog Advisory | MPX | 19 hr |
| Mar 13, 10:38 PM CDT | Dense Fog Advisory | MPX | 11 hr |
| Mar 16, 6:52 PM CDT | Dense Fog Advisory | MPX | 8 hr |
| Mar 25, 1:03 PM CDT | River Flood Warning | MPX | 21 days |
| Mar 26, 7:55 PM CDT | Areal Flood Warning | MPX | 48 hr |
| Apr 8, 4:14 AM CDT | Winter Storm Watch | MPX | 48 hr |
| Apr 10, 4:43 AM CDT | Winter Storm Warning | MPX | 56 hr |
| Apr 11, 9:38 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| May 3, 10:54 PM CDT | Dense Fog Advisory | MPX | 9 hr |
| May 8, 5:36 PM CDT | Winter Weather Advisory | MPX | 10 hr |
| May 19, 2:58 AM CDT | Frost Advisory | MPX | 29 hr |
| May 20, 3:24 PM CDT | Wind Advisory | MPX | 34 hr |
| May 31, 8:48 PM CDT | Special Weather Statement | MPX | 27 min |
| Jun 4, 11:44 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 4, 12:45 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 4, 2:23 PM CDT | Severe Thunderstorm Warning | MPX | 52 min |
| Jun 4, 2:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 27, 4:01 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 27, 7:33 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 27, 9:57 AM CDT | Special Weather Statement | MPX | 48 min |
| Jun 28, 2:44 PM CDT | Heat Advisory | MPX | 49 hr |
| Jun 30, 4:41 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 5:11 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 11:10 AM CDT | Special Weather Statement | MPX | 50 min |
| Jul 12, 10:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 12, 12:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 14, 3:39 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 6:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 14, 7:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 15, 12:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 15, 1:50 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 15, 3:53 PM CDT | Special Weather Statement | MPX | 37 min |
| Jul 15, 4:24 PM CDT | Severe Thunderstorm Warning | MPX | 36 min |
| Jul 15, 4:44 PM CDT | Severe Thunderstorm Warning | MPX | 31 min |
| Jul 15, 4:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 17, 2:41 PM CDT | Heat Advisory | MPX | 53 hr |
| Jul 19, 1:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 19, 2:41 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 19, 5:00 PM CDT | Severe Thunderstorm Warning | MPX | 30 min |
| Jul 26, 3:13 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 26, 5:20 PM CDT | Severe Thunderstorm Warning | MPX | 40 min |
| Jul 26, 5:57 PM CDT | Severe Thunderstorm Warning | MPX | 33 min |
| Jul 26, 6:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 6:30 PM CDT | Severe Thunderstorm Warning | MPX | 45 min |
| Jul 26, 7:11 PM CDT | Severe Thunderstorm Warning | MPX | 49 min |
| Jul 28, 2:51 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 28, 3:37 PM CDT | Tornado Warning | MPX | 38 min |
| Aug 5, 6:50 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 5, 3:06 PM CDT | Special Weather Statement | MPX | 24 min |
| Aug 13, 2:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 17, 10:32 PM CDT | Special Weather Statement | MPX | 58 min |
| Aug 20, 5:23 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Aug 20, 7:47 AM CDT | Special Weather Statement | MPX | 28 min |
| Aug 20, 8:15 AM CDT | Special Weather Statement | MPX | 45 min |
| Aug 27, 12:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 2, 6:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Sep 2, 6:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 2, 9:08 PM CDT | Severe Thunderstorm Warning | MPX | 52 min |
| Sep 2, 9:37 PM CDT | Severe Thunderstorm Warning | MPX | 38 min |
| Sep 2, 9:46 PM CDT | Severe Thunderstorm Warning | MPX | 59 min |
| Sep 5, 9:38 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 15, 1:48 AM CDT | Dense Fog Advisory | MPX | 7 hr |
| Sep 21, 1:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 21, 3:36 PM CDT | Tornado Warning | MPX | 29 min |
| Sep 24, 6:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Sep 30, 4:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 30, 6:36 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Oct 20, 9:27 PM CDT | Wind Advisory | MPX | 45 hr |
| Nov 24, 2:25 PM CST | Winter Storm Watch | MPX | 38 hr |
| Nov 25, 2:21 PM CST | Winter Storm Warning | MPX | 46 hr |
| Nov 26, 9:20 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Nov 27, 3:03 PM CST | Winter Storm Watch | MPX | 45 hr |
| Nov 29, 3:32 AM CST | Winter Storm Warning | MPX | 59 hr |
| Dec 7, 3:38 PM CST | Winter Weather Advisory | MPX | 47 hr |
| Dec 9, 3:28 PM CST | Wind Chill Advisory | MPX | 43 hr |
| Dec 10, 3:12 AM CST | Wind Chill Advisory | MPX | 31 hr |
| Dec 24, 2:18 PM CST | Dense Fog Advisory | MPX | 40 hr |
| Dec 25, 2:52 PM CST | Dense Fog Advisory | MPX | 16 hr |
| Dec 27, 2:40 PM CST | Winter Weather Advisory | MPX | 30 hr |
| Dec 29, 3:00 AM CST | Winter Weather Advisory | MPX | 45 hr |
| Dec 29, 8:35 AM CST | Dense Fog Advisory | MPX | 3 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 | 11 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 24 |
| Special Weather Statement | 8 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 1 |
| Flood Watch | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 10 |
| Heat | |
| Heat Advisory | 2 |
| Cold | |
| Wind Chill Warning | 1 |
| Wind Chill Watch | 1 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 9 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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. Warning verification from the Mesonet's Cow. Rebuilt daily.