Alert archive / Minnesota / Roseau County
Weather alerts in Roseau County, Minnesota, 2019
127 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Roseau County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 127
- Warnings
- 43
- Watches
- 13
- Advisories
- 49
- Busiest month
- September27 alerts
- Busiest day
- September 21, 201913 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Roseau County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 24 | 14 | 42% | 9 | 89% | 19 min |
| Flash flood warnings | 2 | 0 | 100% | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Forks, ND: tornado warnings | 27 | 13 | 52% | 33 | 79% | 12 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 223 | 180 | 19% | 428 | 85% | 25 min |
| NWS Grand Forks, ND: flash flood warnings | 13 | 6 | 54% | 12 | 100% | 154 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 1, 9:04 AM CST | Wind Chill Advisory | FGF | 19 hr |
| Jan 4, 9:44 PM CST | Dense Fog Advisory | FGF | 12 hr |
| Jan 6, 4:04 AM CST | Winter Weather Advisory | FGF | 29 hr |
| Jan 14, 9:52 AM CST | Dense Fog Advisory | FGF | 19 hr |
| Jan 15, 6:29 PM CST | Wind Chill Advisory | FGF | 15 hr |
| Jan 17, 3:36 AM CST | Wind Chill Advisory | FGF | 56 hr |
| Jan 19, 2:59 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Jan 20, 3:25 PM CST | Wind Chill Advisory | FGF | 12 hr |
| Jan 21, 3:43 AM CST | Winter Weather Advisory | FGF | 32 hr |
| Jan 23, 3:58 AM CST | Winter Weather Advisory | FGF | 35 hr |
| Jan 23, 2:47 PM CST | Wind Chill Advisory | FGF | 45 hr |
| Jan 25, 2:39 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Jan 26, 2:42 PM CST | Wind Chill Warning | FGF | 21 hr |
| Jan 27, 4:21 AM CST | Winter Weather Advisory | FGF | 29 hr |
| Jan 28, 4:31 AM CST | Wind Chill Warning | FGF | 3 days |
| Jan 28, 2:41 PM CST | Winter Weather Advisory | FGF | 27 hr |
| Feb 1, 2:46 PM CST | Winter Storm Watch | FGF | 37 hr |
| Feb 2, 2:24 PM CST | Winter Storm Warning | FGF | 46 hr |
| Feb 3, 4:13 AM CST | Winter Weather Advisory | FGF | 38 hr |
| Feb 4, 2:58 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Feb 5, 3:05 PM CST | Winter Storm Watch | FGF | 14 hr |
| Feb 6, 4:41 AM CST | Winter Storm Warning | FGF | 40 hr |
| Feb 6, 4:41 AM CST | Winter Weather Advisory | FGF | 40 hr |
| Feb 7, 3:06 PM CST | Wind Chill Warning | FGF | 21 hr |
| Feb 8, 3:31 AM CST | Wind Chill Advisory | FGF | 32 hr |
| Feb 9, 2:25 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Feb 13, 3:34 PM CST | Winter Weather Advisory | FGF | 26 hr |
| Feb 14, 3:19 AM CST | Wind Chill Advisory | FGF | 33 hr |
| Feb 18, 2:43 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 22, 3:07 AM CST | Winter Weather Advisory | FGF | 33 hr |
| Feb 23, 3:29 AM CST | Winter Storm Watch | FGF | 11 hr |
| Feb 23, 2:51 PM CST | Blizzard Warning | FGF | 25 hr |
| Feb 23, 2:51 PM CST | Winter Weather Advisory | FGF | 28 hr |
| Feb 24, 6:40 PM CST | Wind Chill Warning | FGF | 17 hr |
| Feb 24, 6:40 PM CST | Wind Chill Advisory | FGF | 35 hr |
| Feb 26, 2:59 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Mar 1, 2:48 PM CST | Wind Chill Advisory | FGF | 30 hr |
| Mar 2, 3:24 AM CST | Wind Chill Warning | FGF | 33 hr |
| Mar 3, 3:53 AM CST | Wind Chill Advisory | FGF | 32 hr |
| Mar 8, 4:14 AM CST | Winter Storm Warning | FGF | 50 hr |
| Mar 8, 4:14 AM CST | Winter Weather Advisory | FGF | 41 hr |
| Mar 12, 4:27 AM CDT | Winter Storm Watch | FGF | 33 hr |
| Mar 12, 6:25 PM CDT | Dense Fog Advisory | FGF | 18 hr |
| Mar 13, 5:13 AM CDT | Blizzard Warning | FGF | 38 hr |
| Mar 13, 6:04 PM CDT | Winter Weather Advisory | FGF | 25 hr |
| Apr 5, 6:56 AM CDT | Dense Fog Advisory | FGF | 6 hr |
| Apr 7, 6:34 AM CDT | River Flood Warning | FGF | 5 days |
| Apr 7, 11:46 PM CDT | Dense Fog Advisory | FGF | 4 hr |
| Apr 9, 8:04 AM CDT | Areal Flood Advisory | FGF | 31 hr |
| Apr 10, 2:42 PM CDT | Areal Flood Advisory | FGF | 5 days |
| Apr 10, 3:46 PM CDT | Winter Weather Advisory | FGF | 45 hr |
| Apr 24, 3:09 PM CDT | Fire Weather Watch | FGF | 12 hr |
| Apr 25, 3:06 AM CDT | Red Flag Warning | FGF | 17 hr |
| May 16, 3:45 PM CDT | Frost Advisory | FGF | 16 hr |
| May 19, 3:45 AM CDT | Frost Advisory | FGF | 28 hr |
| Jun 1, 2:49 PM CDT | Frost Advisory | FGF | 17 hr |
| Jun 8, 1:24 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 8, 2:26 PM CDT | Severe Thunderstorm Warning | FGF | 64 min |
| Jun 8, 3:18 PM CDT | Severe Thunderstorm Warning | FGF | 57 min |
| Jun 8, 3:27 PM CDT | Severe Thunderstorm Warning | FGF | 37 min |
| Jun 8, 3:49 PM CDT | Severe Thunderstorm Warning | FGF | 31 min |
| Jun 8, 4:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 11, 1:29 PM CDT | Severe Thunderstorm Warning | FGF | 25 min |
| Jun 29, 10:38 PM CDT | Special Weather Statement | FGF | 22 min |
| Jun 29, 10:39 PM CDT | Special Weather Statement | FGF | 36 min |
| Jun 29, 10:55 PM CDT | Severe Thunderstorm Warning | FGF | 50 min |
| Jun 29, 11:29 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 8, 1:43 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 5:25 PM CDT | Severe Thunderstorm Warning | FGF | 35 min |
| Jul 8, 5:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 8, 6:18 PM CDT | Severe Thunderstorm Warning | FGF | 33 min |
| Jul 11, 7:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 9:57 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 15, 10:52 AM CDT | Special Weather Statement | FGF | 38 min |
| Jul 15, 11:00 AM CDT | Severe Thunderstorm Warning | FGF | 45 min |
| Jul 15, 11:43 AM CDT | Severe Thunderstorm Warning | FGF | 47 min |
| Jul 17, 3:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 12:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 1:59 PM CDT | Severe Thunderstorm Warning | FGF | 45 min |
| Jul 25, 2:18 PM CDT | Severe Thunderstorm Warning | FGF | 57 min |
| Jul 28, 2:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 3:09 PM CDT | Severe Thunderstorm Warning | FGF | 26 min |
| Aug 2, 3:30 PM CDT | Special Weather Statement | FGF | 30 min |
| Aug 6, 5:25 PM CDT | Special Weather Statement | FGF | 20 min |
| Aug 6, 11:39 PM CDT | Special Weather Statement | FGF | 51 min |
| Aug 19, 11:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Sep 20, 11:10 AM CDT | Special Weather Statement | FGF | 35 min |
| Sep 20, 12:18 PM CDT | Special Weather Statement | FGF | 42 min |
| Sep 20, 12:25 PM CDT | Severe Thunderstorm Warning | FGF | 50 min |
| Sep 20, 12:44 PM CDT | Severe Thunderstorm Warning | FGF | 46 min |
| Sep 20, 1:10 PM CDT | Severe Thunderstorm Warning | FGF | 35 min |
| Sep 20, 1:30 PM CDT | Severe Thunderstorm Warning | FGF | 60 min |
| Sep 20, 1:55 PM CDT | Severe Thunderstorm Warning | FGF | 50 min |
| Sep 20, 2:13 PM CDT | Areal Flood Advisory | FGF | 4 hr |
| Sep 20, 2:36 PM CDT | Special Weather Statement | FGF | 54 min |
| Sep 20, 6:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Sep 20, 7:15 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 20, 7:26 PM CDT | Flash Flood Watch | FGF | 8 hr |
| Sep 20, 8:22 PM CDT | Severe Thunderstorm Warning | FGF | 38 min |
| Sep 20, 8:45 PM CDT | Severe Thunderstorm Warning | FGF | 45 min |
| Sep 20, 9:27 PM CDT | Severe Thunderstorm Warning | FGF | 48 min |
| Sep 20, 9:27 PM CDT | Severe Thunderstorm Warning | FGF | 3 min |
| Sep 20, 9:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 9:53 PM CDT | Flash Flood Warning | FGF | 2 hr |
| Sep 20, 10:11 PM CDT | Severe Thunderstorm Warning | FGF | 64 min |
| Sep 20, 11:39 PM CDT | Flash Flood Warning | FGF | 7 hr |
| Sep 21, 12:18 AM CDT | Areal Flood Warning | FGF | 15 hr |
| Sep 21, 9:47 AM CDT | River Flood Warning | FGF | 5 days |
| Sep 21, 3:29 PM CDT | Areal Flood Warning | FGF | 18 hr |
| Sep 24, 5:16 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 24, 8:06 PM CDT | Special Weather Statement | FGF | 39 min |
| Sep 24, 8:23 PM CDT | Severe Thunderstorm Warning | FGF | 22 min |
| Sep 27, 2:00 PM CDT | Frost Advisory | FGF | 19 hr |
| Oct 3, 3:01 PM CDT | Frost Advisory | FGF | 10 hr |
| Oct 8, 4:14 AM CDT | Winter Storm Watch | FGF | 71 hr |
| Oct 9, 11:01 AM CDT | River Flood Warning | FGF | 6 days |
| Oct 11, 2:54 AM CDT | Winter Weather Advisory | FGF | 31 hr |
| Nov 19, 3:17 PM CST | Winter Weather Advisory | FGF | 36 hr |
| Nov 27, 10:15 AM CST | Winter Storm Watch | FGF | 52 hr |
| Nov 29, 2:19 PM CST | Winter Weather Advisory | FGF | 34 hr |
| Dec 9, 2:17 PM CST | Wind Chill Advisory | FGF | 46 hr |
| Dec 14, 3:29 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Dec 25, 4:04 AM CST | Winter Weather Advisory | FGF | 32 hr |
| Dec 26, 3:31 PM CST | Winter Storm Watch | FGF | 24 hr |
| Dec 27, 3:22 PM CST | Winter Storm Warning | FGF | 61 hr |
| Dec 27, 3:22 PM CST | Winter Weather Advisory | FGF | 70 hr |
| Dec 29, 4:46 AM CST | Mesoscale Discussion | SPC | 4 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 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.