Alert archive / Minnesota / Carlton County
Weather alerts in Carlton County, Minnesota, 2011
170 weather alerts in 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Carlton County and its neighbors
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Alerts
- 170
- Warnings
- 33
- Watches
- 19
- Advisories
- 46
- Busiest month
- August49 alerts
- Busiest day
- August 2, 201119 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Carlton County, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 17 | 9 | 47% | 7 | 43% | 23 min |
| Flash flood warnings | 5 | 0 | 100% | 0 |
Each office's whole area, 2011
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Duluth, MN: tornado warnings | 12 | 6 | 50% | 9 | 89% | 20 min |
| NWS Duluth, MN: severe thunderstorm warnings | 218 | 70 | 68% | 209 | 82% | 25 min |
| NWS Duluth, MN: flash flood warnings | 16 | 4 | 75% | 6 | 100% | 53 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 3, 3:26 PM CST | Wind Chill Advisory | DLH | 17 hr |
| Jan 6, 1:39 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Jan 11, 12:27 PM CST | Winter Weather Advisory | DLH | 18 hr |
| Jan 14, 12:08 PM CST | Winter Weather Advisory | DLH | 11 hr |
| Jan 17, 2:15 PM CST | Wind Chill Advisory | DLH | 7 hr |
| Jan 17, 9:25 PM CST | Wind Chill Advisory | DLH | 11 hr |
| Jan 20, 3:12 AM CST | Wind Chill Advisory | DLH | 29 hr |
| Jan 21, 12:15 PM CST | Wind Chill Advisory | DLH | 24 hr |
| Jan 27, 3:09 PM CST | Winter Weather Advisory | DLH | 36 hr |
| Jan 28, 1:19 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Jan 31, 4:13 AM CST | Winter Weather Advisory | DLH | 5 hr |
| Jan 31, 8:58 AM CST | Lake Effect Snow Warning | DLH | 12 hr |
| Jan 31, 3:44 PM CST | Wind Chill Advisory | DLH | 17 hr |
| Feb 1, 3:37 AM CST | Wind Chill Advisory | DLH | 30 hr |
| Feb 7, 2:26 PM CST | Wind Chill Advisory | DLH | 20 hr |
| Feb 8, 3:08 PM CST | Wind Chill Advisory | DLH | 19 hr |
| Feb 18, 1:02 AM CST | Wind Advisory | DLH | 18 hr |
| Feb 18, 3:15 PM CST | Winter Storm Watch | DLH | 24 hr |
| Feb 19, 3:01 PM CST | Winter Weather Advisory | DLH | 51 hr |
| Mar 1, 3:20 AM CST | Wind Chill Advisory | DLH | 30 hr |
| Mar 14, 1:36 AM CDT | Dense Fog Advisory | DLH | 3 hr |
| Mar 20, 11:39 AM CDT | Dense Fog Advisory | DLH | 13 hr |
| Mar 20, 4:03 PM CDT | Blizzard Watch | DLH | 24 hr |
| Mar 21, 3:33 PM CDT | Blizzard Warning | DLH | 37 hr |
| Mar 21, 3:33 PM CDT | Winter Storm Warning | DLH | 51 hr |
| Mar 22, 3:49 PM CDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 2, 3:40 PM CDT | Winter Weather Advisory | DLH | 24 hr |
| Apr 10, 12:54 AM CDT | Special Weather Statement | DLH | 66 min |
| Apr 15, 3:56 AM CDT | Winter Weather Advisory | DLH | 32 hr |
| May 10, 5:53 PM CDT | Tornado Watch | SPC | 6 hr |
| May 21, 9:35 PM CDT | Dense Fog Advisory | DLH | 11 hr |
| May 22, 5:09 AM CDT | Special Weather Statement | DLH | 66 min |
| May 22, 11:15 PM CDT | Dense Fog Advisory | DLH | 6 hr |
| May 25, 1:36 PM CDT | Frost Advisory | DLH | 18 hr |
| May 26, 3:47 AM CDT | Freeze Watch | DLH | 10 hr |
| May 26, 2:03 PM CDT | Freeze Warning | DLH | 17 hr |
| May 28, 1:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 28, 2:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 28, 5:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 28, 5:36 PM CDT | Severe Thunderstorm Warning | DLH | 39 min |
| May 28, 6:03 PM CDT | Severe Thunderstorm Warning | DLH | 42 min |
| May 28, 6:40 PM CDT | Special Weather Statement | DLH | 35 min |
| May 30, 6:21 AM CDT | Special Weather Statement | DLH | 24 min |
| May 30, 6:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| May 30, 11:55 PM CDT | Severe Thunderstorm Warning | DLH | 65 min |
| May 31, 12:47 AM CDT | Severe Thunderstorm Warning | DLH | 28 min |
| May 31, 4:00 AM CDT | Wind Advisory | DLH | 18 hr |
| Jun 1, 3:11 AM CDT | Wind Advisory | DLH | 12 hr |
| Jun 3, 5:28 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 7, 2:23 AM CDT | Severe Thunderstorm Warning | DLH | 52 min |
| Jun 16, 2:12 AM CDT | Dense Fog Advisory | DLH | 7 hr |
| Jun 16, 8:42 PM CDT | Dense Fog Advisory | DLH | 12 hr |
| Jun 18, 3:20 PM CDT | Flash Flood Watch | DLH | 18 hr |
| Jun 19, 5:16 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Jun 21, 10:28 AM CDT | Wind Advisory | DLH | 10 hr |
| Jun 27, 3:19 AM CDT | Flash Flood Watch | DLH | 11 hr |
| Jul 1, 6:25 AM CDT | Dense Fog Advisory | DLH | 4 hr |
| Jul 1, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 1, 6:23 PM CDT | Severe Thunderstorm Warning | DLH | 52 min |
| Jul 1, 6:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 1, 6:54 PM CDT | Flash Flood Warning | DLH | 4 hr |
| Jul 1, 7:08 PM CDT | Severe Thunderstorm Warning | DLH | 52 min |
| Jul 4, 7:14 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 4, 10:11 PM CDT | Special Weather Statement | DLH | 19 min |
| Jul 4, 10:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 10:54 PM CDT | Severe Thunderstorm Warning | DLH | 51 min |
| Jul 4, 10:57 PM CDT | Severe Thunderstorm Warning | DLH | 48 min |
| Jul 4, 11:35 PM CDT | Special Weather Statement | DLH | 55 min |
| Jul 4, 11:42 PM CDT | Special Weather Statement | DLH | 63 min |
| Jul 5, 12:32 AM CDT | Special Weather Statement | DLH | 58 min |
| Jul 10, 8:07 PM CDT | Special Weather Statement | DLH | 53 min |
| Jul 10, 8:36 PM CDT | Special Weather Statement | DLH | 54 min |
| Jul 10, 8:42 PM CDT | Severe Thunderstorm Warning | DLH | 27 min |
| Jul 10, 10:25 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Jul 15, 3:32 AM CDT | Excessive Heat Watch | DLH | 34 hr |
| Jul 15, 3:42 PM CDT | Excessive Heat Warning | DLH | 5 days |
| Jul 16, 3:46 AM CDT | Heat Advisory | DLH | 5 days |
| Jul 17, 1:06 PM CDT | Flash Flood Watch | DLH | 14 hr |
| Jul 17, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 6:28 PM CDT | Special Weather Statement | DLH | 47 min |
| Jul 19, 1:42 PM CDT | Special Weather Statement | DLH | 33 min |
| Jul 19, 1:47 PM CDT | Severe Thunderstorm Warning | DLH | 58 min |
| Jul 19, 2:14 PM CDT | Severe Thunderstorm Warning | DLH | 46 min |
| Jul 19, 3:23 PM CDT | Special Weather Statement | DLH | 52 min |
| Jul 19, 4:41 PM CDT | Severe Thunderstorm Warning | DLH | 49 min |
| Jul 20, 6:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 23, 7:19 AM CDT | Special Weather Statement | DLH | 41 min |
| Jul 23, 7:46 AM CDT | Special Weather Statement | DLH | 44 min |
| Jul 30, 5:31 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 30, 7:34 PM CDT | Special Weather Statement | DLH | 11 min |
| Aug 1, 3:25 PM CDT | Flash Flood Watch | DLH | 21 hr |
| Aug 1, 9:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 1, 9:52 PM CDT | Special Weather Statement | DLH | 23 min |
| Aug 1, 10:12 PM CDT | Special Weather Statement | DLH | 18 min |
| Aug 1, 10:30 PM CDT | Special Weather Statement | DLH | 30 min |
| Aug 1, 10:35 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 1, 10:46 PM CDT | Special Weather Statement | DLH | 29 min |
| Aug 2, 12:10 AM CDT | Special Weather Statement | DLH | 35 min |
| Aug 2, 12:40 AM CDT | Flash Flood Warning | DLH | 4 hr |
| Aug 2, 1:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Aug 2, 1:51 AM CDT | Special Weather Statement | DLH | 24 min |
| Aug 2, 3:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 2, 3:33 AM CDT | Special Weather Statement | DLH | 27 min |
| Aug 2, 4:07 AM CDT | Special Weather Statement | DLH | 23 min |
| Aug 2, 4:49 AM CDT | Special Weather Statement | DLH | 26 min |
| Aug 2, 5:11 AM CDT | Areal Flood Advisory | DLH | 3 hr |
| Aug 2, 6:33 AM CDT | Flash Flood Warning | DLH | 4 hr |
| Aug 2, 11:06 AM CDT | Flash Flood Warning | DLH | 4 hr |
| Aug 2, 3:29 PM CDT | Areal Flood Warning | DLH | 24 hr |
| Aug 2, 3:47 PM CDT | Areal Flood Warning | DLH | 48 hr |
| Aug 5, 7:25 PM CDT | Special Weather Statement | DLH | 35 min |
| Aug 8, 12:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Aug 8, 4:05 PM CDT | Special Weather Statement | DLH | 55 min |
| Aug 8, 5:10 PM CDT | Special Weather Statement | DLH | 35 min |
| Aug 8, 5:24 PM CDT | Special Weather Statement | DLH | 36 min |
| Aug 8, 5:43 PM CDT | Special Weather Statement | DLH | 32 min |
| Aug 8, 5:45 PM CDT | Severe Thunderstorm Warning | DLH | 45 min |
| Aug 8, 6:15 PM CDT | Areal Flood Advisory | DLH | 3 hr |
| Aug 8, 6:24 PM CDT | Severe Thunderstorm Warning | DLH | 21 min |
| Aug 8, 6:50 PM CDT | Special Weather Statement | DLH | 55 min |
| Aug 8, 6:56 PM CDT | Flash Flood Warning | DLH | 96 min |
| Aug 10, 5:20 PM CDT | Special Weather Statement | DLH | 40 min |
| Aug 10, 6:01 PM CDT | Special Weather Statement | DLH | 44 min |
| Aug 11, 3:04 PM CDT | Special Weather Statement | DLH | 56 min |
| Aug 12, 3:30 PM CDT | Special Weather Statement | DLH | 30 min |
| Aug 13, 11:57 AM CDT | Special Weather Statement | DLH | 48 min |
| Aug 13, 12:50 PM CDT | Special Weather Statement | DLH | 25 min |
| Aug 13, 1:18 PM CDT | Special Weather Statement | DLH | 27 min |
| Aug 13, 4:53 PM CDT | Special Weather Statement | DLH | 52 min |
| Aug 14, 3:31 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Aug 16, 4:02 PM CDT | Special Weather Statement | DLH | 58 min |
| Aug 16, 4:27 PM CDT | Special Weather Statement | DLH | 63 min |
| Aug 19, 3:14 AM CDT | Severe Thunderstorm Warning | DLH | 61 min |
| Aug 19, 3:52 AM CDT | Special Weather Statement | DLH | 23 min |
| Aug 19, 4:09 AM CDT | Severe Thunderstorm Warning | DLH | 51 min |
| Aug 20, 6:42 PM CDT | Special Weather Statement | DLH | 48 min |
| Aug 20, 7:19 PM CDT | Special Weather Statement | DLH | 26 min |
| Aug 20, 7:31 PM CDT | Special Weather Statement | DLH | 44 min |
| Aug 23, 5:46 AM CDT | Special Weather Statement | DLH | 59 min |
| Sep 1, 8:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Sep 2, 1:39 AM CDT | Dense Fog Advisory | DLH | 2 hr |
| Sep 12, 1:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 4:15 PM CDT | Special Weather Statement | DLH | 30 min |
| Sep 12, 4:29 PM CDT | Special Weather Statement | DLH | 16 min |
| Sep 13, 4:11 AM CDT | Freeze Watch | DLH | 24 hr |
| Sep 13, 3:12 PM CDT | Frost Advisory | DLH | 17 hr |
| Sep 13, 6:15 PM CDT | Special Weather Statement | DLH | 45 min |
| Sep 13, 6:18 PM CDT | Special Weather Statement | DLH | 42 min |
| Sep 14, 4:20 AM CDT | Freeze Warning | DLH | 28 hr |
| Sep 14, 5:28 PM CDT | Special Weather Statement | DLH | 47 min |
| Sep 14, 5:34 PM CDT | Special Weather Statement | DLH | 41 min |
| Sep 15, 3:55 PM CDT | Freeze Warning | DLH | 16 hr |
| Sep 20, 3:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 28, 5:23 PM CDT | Wind Advisory | DLH | 25 hr |
| Oct 5, 4:42 AM CDT | Red Flag Warning | DLH | 38 hr |
| Oct 6, 2:31 AM CDT | Dense Fog Advisory | DLH | 6 hr |
| Oct 6, 2:21 PM CDT | Wind Advisory | DLH | 38 hr |
| Oct 6, 2:42 PM CDT | Fire Weather Watch | DLH | 12 hr |
| Oct 7, 2:57 AM CDT | Red Flag Warning | DLH | 19 hr |
| Oct 12, 2:36 PM CDT | Special Weather Statement | DLH | 39 min |
| Oct 12, 3:17 PM CDT | Special Weather Statement | DLH | 43 min |
| Nov 3, 2:30 PM CDT | Fire Weather Watch | DLH | 18 hr |
| Nov 15, 3:39 PM CST | Special Weather Statement | DLH | 51 min |
| Nov 15, 8:50 PM CST | Special Weather Statement | DLH | 55 min |
| Nov 18, 3:31 PM CST | Winter Weather Advisory | DLH | 31 hr |
| Nov 19, 6:11 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 11, 3:32 PM CST | Freezing Rain Advisory | DLH | 53 hr |
| Dec 14, 12:29 AM CST | Dense Fog Advisory | DLH | 4 hr |
| Dec 14, 11:37 AM CST | Dense Fog Advisory | DLH | 10 hr |
| Dec 31, 4:48 AM CST | Winter Weather Advisory | DLH | 29 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20102012
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.