Alert archive / Minnesota / Polk County
Weather alerts in Polk County, Minnesota, 2014
152 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Polk County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 152
- Warnings
- 47
- Watches
- 17
- Advisories
- 68
- Busiest month
- January28 alerts
- Busiest day
- July 22, 201410 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 4 tornado warnings covering Polk County in 2014 had a tornado report inside them; 1 of 3 tornado reports fell inside a warning, on average 11 minutes after it went out.
Polk County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 4 | 1 | 75% | 3 | 33% | 11 min |
| Severe thunderstorm warnings | 11 | 11 | 0% | 14 | 93% | 19 min |
| Flash flood warnings | 2 | 2 | 0% | 1 | 100% | 61 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Grand Forks, ND: tornado warnings | 25 | 13 | 48% | 22 | 68% | 14 min |
| NWS Grand Forks, ND: severe thunderstorm warnings | 74 | 73 | 1% | 240 | 76% | 24 min |
| NWS Grand Forks, ND: flash flood warnings | 8 | 7 | 13% | 24 | 67% | 83 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 2, 2:23 PM CST | Blizzard Watch | FGF | 21 hr |
| Jan 2, 2:23 PM CST | Wind Chill Advisory | FGF | 14 hr |
| Jan 3, 3:59 AM CST | Blizzard Warning | FGF | 24 hr |
| Jan 3, 3:59 AM CST | Winter Weather Advisory | FGF | 27 hr |
| Jan 4, 4:00 AM CST | Wind Chill Warning | FGF | 72 hr |
| Jan 4, 4:00 AM CST | Wind Chill Advisory | FGF | 14 hr |
| Jan 7, 3:54 AM CST | Wind Chill Advisory | FGF | 29 hr |
| Jan 8, 3:00 PM CST | Wind Chill Advisory | FGF | 13 hr |
| Jan 12, 2:09 AM CST | Freezing Rain Advisory | FGF | 7 hr |
| Jan 13, 3:32 AM CST | Winter Weather Advisory | FGF | 32 hr |
| Jan 14, 3:39 PM CST | Blizzard Watch | FGF | 13 hr |
| Jan 15, 4:38 AM CST | Blizzard Warning | FGF | 37 hr |
| Jan 17, 3:24 PM CST | Winter Weather Advisory | FGF | 18 hr |
| Jan 20, 4:00 AM CST | Wind Chill Advisory | FGF | 32 hr |
| Jan 21, 10:03 AM CST | Winter Weather Advisory | FGF | 4 hr |
| Jan 21, 3:39 PM CST | Winter Weather Advisory | FGF | 11 hr |
| Jan 22, 2:58 AM CST | Blizzard Warning | FGF | 10 hr |
| Jan 22, 2:58 AM CST | Winter Weather Advisory | FGF | 8 hr |
| Jan 22, 4:13 AM CST | Wind Chill Advisory | FGF | 11 hr |
| Jan 22, 3:38 PM CST | Wind Chill Warning | FGF | 20 hr |
| Jan 24, 4:20 AM CST | Blizzard Watch | FGF | 9 hr |
| Jan 24, 4:20 AM CST | Winter Weather Advisory | FGF | 19 hr |
| Jan 24, 1:49 PM CST | Blizzard Warning | FGF | 8 hr |
| Jan 25, 4:36 AM CST | Blizzard Watch | FGF | 10 hr |
| Jan 25, 2:54 PM CST | Blizzard Warning | FGF | 31 hr |
| Jan 26, 9:33 PM CST | Wind Chill Warning | FGF | 38 hr |
| Jan 28, 12:01 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Jan 29, 3:32 PM CST | Wind Chill Advisory | FGF | 44 hr |
| Feb 1, 3:17 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 3, 3:41 PM CST | Wind Chill Advisory | FGF | 20 hr |
| Feb 4, 2:51 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 5, 4:05 AM CST | Wind Chill Advisory | FGF | 32 hr |
| Feb 6, 3:44 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 8, 3:08 PM CST | Wind Chill Advisory | FGF | 21 hr |
| Feb 9, 3:29 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 10, 3:24 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 11, 1:54 PM CST | Winter Weather Advisory | FGF | 4 hr |
| Feb 12, 4:03 AM CST | Winter Weather Advisory | FGF | 32 hr |
| Feb 13, 8:41 AM CST | Blizzard Warning | FGF | 3 hr |
| Feb 16, 3:20 AM CST | Winter Weather Advisory | FGF | 33 hr |
| Feb 20, 3:27 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 21, 3:15 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 23, 3:27 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 24, 3:08 PM CST | Wind Chill Advisory | FGF | 19 hr |
| Feb 25, 3:18 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 25, 3:18 PM CST | Winter Weather Advisory | FGF | 30 hr |
| Feb 26, 3:37 PM CST | Wind Chill Warning | FGF | 18 hr |
| Feb 26, 3:37 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 26, 4:32 PM CST | Blizzard Warning | FGF | 4 hr |
| Feb 27, 3:24 PM CST | Wind Chill Advisory | FGF | 18 hr |
| Feb 28, 3:59 PM CST | Wind Chill Warning | FGF | 42 hr |
| Mar 2, 10:04 AM CST | Wind Chill Advisory | FGF | 14 hr |
| Mar 5, 4:14 AM CST | Winter Weather Advisory | FGF | 7 hr |
| Mar 5, 11:19 AM CST | Blizzard Warning | FGF | 8 hr |
| Mar 5, 11:19 AM CST | Winter Weather Advisory | FGF | 24 hr |
| Mar 6, 3:35 AM CST | Freezing Rain Advisory | FGF | 6 hr |
| Mar 19, 3:36 PM CDT | Winter Storm Watch | FGF | 13 hr |
| Mar 20, 4:31 AM CDT | Winter Storm Warning | FGF | 35 hr |
| Mar 20, 6:48 AM CDT | Dense Fog Advisory | FGF | 6 hr |
| Mar 21, 8:07 AM CDT | Blizzard Warning | FGF | 11 hr |
| Mar 29, 4:12 AM CDT | Winter Storm Watch | FGF | 35 hr |
| Mar 29, 3:47 PM CDT | Blizzard Watch | FGF | 36 hr |
| Mar 30, 3:27 PM CDT | Blizzard Warning | FGF | 40 hr |
| Mar 30, 3:27 PM CDT | Winter Storm Warning | FGF | 40 hr |
| Mar 31, 6:18 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 31, 12:08 PM CDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 31, 8:37 PM CDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 8, 8:14 AM CDT | River Flood Warning | FGF | 6 days |
| Apr 9, 4:54 AM CDT | Wind Advisory | FGF | 16 hr |
| Apr 9, 12:26 PM CDT | River Flood Warning | FGF | 8 days |
| Apr 9, 12:26 PM CDT | River Flood Warning | FGF | 11 days |
| Apr 18, 3:48 AM CDT | Wind Advisory | FGF | 24 hr |
| Apr 26, 3:29 PM CDT | Wind Advisory | FGF | 28 hr |
| Apr 27, 9:56 PM CDT | River Flood Warning | FGF | 6 days |
| Apr 28, 10:51 AM CDT | River Flood Watch | FGF | 6 days |
| Apr 28, 10:51 AM CDT | River Flood Watch | FGF | 6 days |
| Apr 30, 11:40 AM CDT | River Flood Warning | FGF | 8 days |
| Apr 30, 11:40 AM CDT | River Flood Warning | FGF | 8 days |
| May 13, 3:17 PM CDT | Frost Advisory | FGF | 17 hr |
| May 14, 2:43 PM CDT | Freeze Warning | FGF | 18 hr |
| May 15, 2:54 PM CDT | Freeze Warning | FGF | 17 hr |
| May 30, 2:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 5, 4:36 PM CDT | Severe Thunderstorm Warning | FGF | 22 min |
| Jun 5, 5:00 PM CDT | Special Weather Statement | FGF | 60 min |
| Jun 5, 5:04 PM CDT | Tornado Warning | FGF | 23 min |
| Jun 16, 11:06 AM CDT | River Flood Warning | FGF | 17 days |
| Jun 16, 11:06 AM CDT | River Flood Warning | FGF | 18 days |
| Jun 16, 11:06 AM CDT | River Flood Warning | FGF | 4 days |
| Jun 19, 1:31 AM CDT | Special Weather Statement | FGF | 59 min |
| Jun 20, 2:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 20, 3:18 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 12:20 PM CDT | Flash Flood Watch | FGF | 16 hr |
| Jun 21, 3:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 21, 3:37 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 21, 4:38 PM CDT | Severe Thunderstorm Warning | FGF | 32 min |
| Jun 21, 7:49 PM CDT | Severe Thunderstorm Warning | FGF | 26 min |
| Jun 21, 8:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 21, 8:17 PM CDT | Severe Thunderstorm Warning | FGF | 43 min |
| Jun 21, 8:24 PM CDT | Tornado Warning | FGF | 51 min |
| Jun 27, 2:18 PM CDT | Flash Flood Watch | FGF | 25 hr |
| Jun 27, 2:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 1:41 PM CDT | Wind Advisory | FGF | 7 hr |
| Jun 28, 1:47 PM CDT | Special Weather Statement | FGF | 58 min |
| Jun 29, 4:26 AM CDT | Wind Advisory | FGF | 16 hr |
| Jun 30, 4:23 AM CDT | Wind Advisory | FGF | 15 hr |
| Jul 5, 5:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 5, 10:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 5, 10:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 11:31 PM CDT | Severe Thunderstorm Warning | FGF | 44 min |
| Jul 6, 2:20 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 6, 5:19 AM CDT | Mesoscale Discussion | SPC | 26 min |
| Jul 21, 4:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 21, 5:07 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 21, 7:48 PM CDT | Severe Thunderstorm Warning | FGF | 57 min |
| Jul 21, 8:26 PM CDT | Flash Flood Warning | FGF | 6 hr |
| Jul 21, 8:43 PM CDT | Severe Thunderstorm Warning | FGF | 46 min |
| Jul 21, 8:58 PM CDT | Tornado Warning | FGF | 47 min |
| Jul 21, 9:08 PM CDT | Tornado Warning | FGF | 33 min |
| Jul 21, 9:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 21, 9:15 PM CDT | Severe Thunderstorm Warning | FGF | 60 min |
| Jul 21, 10:01 PM CDT | Severe Thunderstorm Warning | FGF | 59 min |
| Jul 21, 10:32 PM CDT | Flash Flood Warning | FGF | 8 hr |
| Jul 21, 11:10 PM CDT | High Wind Warning | FGF | 5 hr |
| Aug 19, 1:23 AM CDT | Dense Fog Advisory | FGF | 8 hr |
| Sep 1, 2:52 PM CDT | Special Weather Statement | FGF | 53 min |
| Sep 10, 3:06 PM CDT | Frost Advisory | FGF | 13 hr |
| Sep 11, 2:51 PM CDT | Frost Advisory | FGF | 19 hr |
| Sep 12, 3:18 PM CDT | Frost Advisory | FGF | 17 hr |
| Sep 20, 12:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Sep 20, 1:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 20, 1:33 PM CDT | Severe Thunderstorm Warning | FGF | 57 min |
| Sep 20, 2:30 PM CDT | Severe Thunderstorm Warning | FGF | 36 min |
| Sep 20, 5:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Oct 2, 1:01 PM CDT | Wind Advisory | FGF | 30 hr |
| Oct 11, 12:09 PM CDT | Wind Advisory | FGF | 7 hr |
| Nov 1, 10:43 AM CDT | Red Flag Warning | FGF | 7 hr |
| Nov 6, 4:57 PM CST | High Wind Watch | FGF | 10 hr |
| Nov 7, 3:22 AM CST | Wind Advisory | FGF | 21 hr |
| Nov 16, 3:40 AM CST | Winter Weather Advisory | FGF | 15 hr |
| Nov 16, 3:47 AM CST | Wind Advisory | FGF | 11 hr |
| Nov 23, 3:27 AM CST | Wind Advisory | FGF | 13 hr |
| Nov 23, 4:47 PM CST | Freezing Rain Advisory | FGF | 10 hr |
| Nov 23, 4:52 PM CST | Wind Advisory | FGF | 17 hr |
| Nov 27, 3:32 AM CST | Winter Weather Advisory | FGF | 24 hr |
| Nov 30, 12:05 PM CST | Wind Chill Advisory | FGF | 24 hr |
| Dec 12, 10:04 PM CST | Dense Fog Advisory | FGF | 15 hr |
| Dec 13, 3:39 PM CST | Dense Fog Advisory | FGF | 20 hr |
| Dec 14, 12:14 PM CST | Freezing Rain Advisory | FGF | 25 hr |
| Dec 14, 12:20 PM CST | Dense Fog Advisory | FGF | 16 hr |
| Dec 19, 9:29 PM CST | Winter Weather Advisory | FGF | 14 hr |
| Dec 27, 3:49 PM CST | Wind Chill Advisory | FGF | 68 hr |
| Dec 30, 3:03 PM CST | Wind Chill Advisory | FGF | 15 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 archive20132015
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.