Alert archive / Minnesota / Beltrami County
Weather alerts in Beltrami County, Minnesota, 2009
74 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Beltrami County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 74
- Warnings
- 17
- Watches
- 9
- Advisories
- 33
- Busiest month
- January13 alerts
- Busiest day
- August 15, 20094 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Beltrami County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 3 | 25% | 7 | 57% | 12 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Forks, ND: tornado warnings | 19 | 10 | 47% | 26 | 69% | 31 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 53 | 41 | 23% | 115 | 60% | 24 min |
| NWS Grand Forks, ND: flash flood warnings | 17 | 7 | 59% | 16 | 94% | 185 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, 3:50 PM CST | Winter Storm Watch | FGF | 24 hr |
| Jan 2, 3:43 PM CST | Winter Storm Warning | FGF | 36 hr |
| Jan 3, 6:29 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 3, 12:34 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 3, 3:09 PM CST | Wind Chill Advisory | FGF | 27 hr |
| Jan 12, 9:59 AM CST | Wind Chill Advisory | FGF | 14 hr |
| Jan 13, 4:13 AM CST | Wind Chill Advisory | FGF | 31 hr |
| Jan 13, 8:34 PM CST | Wind Chill Warning | FGF | 39 hr |
| Jan 13, 8:34 PM CST | Wind Chill Advisory | FGF | 14 hr |
| Jan 16, 7:39 AM CST | Wind Chill Warning | FGF | 4 hr |
| Jan 22, 5:57 AM CST | Dense Fog Advisory | FGF | 6 hr |
| Jan 22, 3:10 PM CST | Wind Chill Advisory | FGF | 5 days |
| Jan 31, 4:23 AM CST | Wind Advisory | FGF | 18 hr |
| Feb 1, 9:23 PM CST | Wind Chill Advisory | FGF | 30 hr |
| Feb 7, 3:24 PM CST | Winter Storm Watch | FGF | 24 hr |
| Feb 8, 3:44 PM CST | Ice Storm Warning | FGF | 32 hr |
| Feb 8, 3:44 PM CST | Winter Weather Advisory | FGF | 36 hr |
| Feb 8, 3:44 PM CST | Freezing Rain Advisory | FGF | 23 hr |
| Feb 17, 1:58 PM CST | Winter Weather Advisory | FGF | 8 hr |
| Feb 25, 2:49 PM CST | Wind Chill Advisory | FGF | 45 hr |
| Feb 26, 8:42 AM CST | Winter Weather Advisory | FGF | 9 hr |
| Mar 4, 8:58 PM CST | Freezing Rain Advisory | FGF | 15 hr |
| Mar 8, 5:13 AM CDT | Winter Storm Watch | FGF | 35 hr |
| Mar 9, 4:24 AM CDT | Winter Weather Advisory | FGF | 18 hr |
| Mar 9, 3:56 PM CDT | Winter Storm Warning | FGF | 37 hr |
| Mar 10, 9:53 AM CDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 11, 4:48 AM CDT | Wind Chill Advisory | FGF | 31 hr |
| Mar 23, 2:53 AM CDT | Areal Flood Warning | FGF | 61 hr |
| Mar 24, 4:33 AM CDT | Winter Storm Watch | FGF | 11 hr |
| Mar 24, 3:51 PM CDT | Winter Storm Warning | FGF | 21 hr |
| Mar 24, 3:51 PM CDT | Winter Weather Advisory | FGF | 21 hr |
| Mar 25, 3:09 PM CDT | Areal Flood Warning | FGF | 6 days |
| Mar 29, 3:27 PM CDT | Winter Storm Warning | FGF | 61 hr |
| Mar 29, 3:27 PM CDT | Winter Weather Advisory | FGF | 61 hr |
| May 6, 6:00 PM CDT | Severe Thunderstorm Warning | FGF | 60 min |
| May 15, 1:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 29, 2:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 2, 10:31 AM CDT | Frost Advisory | FGF | 21 hr |
| Jun 5, 3:42 PM CDT | Frost Advisory | FGF | 14 hr |
| Jun 23, 10:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 23, 11:01 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 23, 12:20 PM CDT | Special Weather Statement | FGF | 25 min |
| Jun 28, 5:47 PM CDT | Wind Advisory | FGF | 3 hr |
| Jun 28, 7:03 PM CDT | High Wind Warning | FGF | 117 min |
| Jul 9, 3:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 22, 4:52 PM CDT | Special Weather Statement | FGF | 38 min |
| Jul 23, 4:51 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 23, 8:41 PM CDT | Special Weather Statement | FGF | 34 min |
| Jul 23, 9:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 23, 9:37 PM CDT | Severe Thunderstorm Warning | FGF | 53 min |
| Jul 31, 6:20 PM CDT | Special Weather Statement | FGF | 40 min |
| Aug 7, 11:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 14, 8:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 15, 5:24 AM CDT | Special Weather Statement | FGF | 36 min |
| Aug 15, 5:30 AM CDT | Severe Thunderstorm Warning | FGF | 60 min |
| Aug 15, 6:32 AM CDT | Severe Thunderstorm Warning | FGF | 47 min |
| Sep 10, 4:36 AM CDT | Dense Fog Advisory | FGF | 4 hr |
| Sep 13, 3:34 AM CDT | Dense Fog Advisory | FGF | 6 hr |
| Sep 28, 4:02 AM CDT | Frost Advisory | FGF | 29 hr |
| Oct 7, 4:58 PM CDT | Freeze Watch | FGF | 11 hr |
| Oct 8, 4:21 AM CDT | Freeze Warning | FGF | 30 hr |
| Oct 12, 12:08 PM CDT | Winter Storm Warning | FGF | 3 hr |
| Nov 30, 3:56 AM CST | Winter Storm Watch | FGF | 24 hr |
| Dec 1, 4:10 AM CST | Winter Weather Advisory | FGF | 17 hr |
| Dec 9, 12:08 PM CST | Wind Chill Advisory | FGF | 22 hr |
| Dec 10, 3:28 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Dec 12, 3:12 PM CST | Wind Chill Advisory | FGF | 20 hr |
| Dec 13, 11:14 AM CST | Wind Chill Advisory | FGF | 24 hr |
| Dec 14, 2:53 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Dec 22, 3:57 AM CST | Winter Storm Watch | FGF | 24 hr |
| Dec 23, 4:10 AM CST | Winter Storm Warning | FGF | 3 days |
| Dec 26, 9:01 AM CST | Winter Weather Advisory | FGF | 9 hr |
| Dec 27, 6:41 AM CST | Freezing Rain Advisory | FGF | 3 hr |
| Dec 27, 10:15 AM CST | Freezing Rain Advisory | FGF | 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 | 4 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 10 |
| Special Weather Statement | 5 |
| Flooding | |
| Areal Flood Warning | 2 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 6 |
| Freezing Rain Advisory | 4 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 13 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.