Alert archive / North Dakota / Ward County
Weather alerts in Ward County, North Dakota, 2010
161 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ward County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 161
- Warnings
- 89
- Watches
- 18
- Advisories
- 12
- Busiest month
- June47 alerts
- Busiest day
- June 25, 201017 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
3 of 13 tornado warnings covering Ward County in 2010 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 25 minutes after it went out.
Ward County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 13 | 3 | 77% | 1 | 100% | 25 min |
| Severe thunderstorm warnings | 62 | 32 | 48% | 22 | 95% | 25 min |
| Flash flood warnings | 9 | 4 | 56% | 11 | 55% | 57 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: tornado warnings | 93 | 10 | 89% | 30 | 63% | 9 min |
| NWS Bismarck, ND: severe thunderstorm warnings | 430 | 186 | 57% | 406 | 74% | 25 min |
| NWS Bismarck, ND: flash flood warnings | 29 | 8 | 72% | 23 | 57% | 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 |
|---|---|---|---|
| Apr 7, 3:47 PM CDT | Fire Weather Watch | BIS | 23 hr |
| Apr 8, 3:00 PM CDT | Red Flag Warning | BIS | 30 hr |
| Apr 9, 4:12 PM CDT | Fire Weather Watch | BIS | 12 hr |
| Apr 10, 4:17 AM CDT | Red Flag Warning | BIS | 16 hr |
| Apr 13, 12:34 AM CDT | Severe Thunderstorm Warning | BIS | 56 min |
| Apr 13, 1:22 AM CDT | Severe Thunderstorm Warning | BIS | 53 min |
| Apr 13, 2:22 AM CDT | Severe Thunderstorm Warning | BIS | 53 min |
| Apr 13, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 13, 3:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 16, 4:25 AM CDT | Fire Weather Watch | BIS | 24 hr |
| Apr 17, 4:35 AM CDT | Red Flag Warning | BIS | 16 hr |
| May 22, 12:20 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| May 22, 1:06 PM CDT | Areal Flood Advisory | BIS | 3 hr |
| May 22, 1:18 PM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| May 22, 1:51 PM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| May 22, 1:54 PM CDT | Flash Flood Warning | BIS | 3 hr |
| May 24, 10:05 PM CDT | Severe Thunderstorm Warning | BIS | 33 min |
| May 27, 8:13 AM CDT | Areal Flood Advisory | BIS | 3 hr |
| May 27, 9:16 AM CDT | Flash Flood Warning | BIS | 3 hr |
| May 27, 11:53 AM CDT | Severe Thunderstorm Warning | BIS | 37 min |
| May 27, 12:31 PM CDT | Severe Thunderstorm Warning | BIS | 44 min |
| May 27, 12:57 PM CDT | Severe Thunderstorm Warning | BIS | 48 min |
| May 28, 5:21 AM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| May 29, 2:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| May 29, 4:22 AM CDT | Severe Thunderstorm Warning | BIS | 38 min |
| May 29, 4:52 AM CDT | Severe Thunderstorm Warning | BIS | 38 min |
| May 29, 5:16 AM CDT | Mesoscale Discussion | SPC | 59 min |
| May 29, 5:18 AM CDT | Mesoscale Discussion | SPC | 57 min |
| May 29, 6:01 AM CDT | Flash Flood Warning | BIS | 4 hr |
| May 29, 6:27 AM CDT | Severe Thunderstorm Warning | BIS | 48 min |
| May 29, 6:58 AM CDT | Flash Flood Warning | BIS | 4 hr |
| May 29, 11:50 AM CDT | Severe Thunderstorm Warning | BIS | 40 min |
| May 29, 12:05 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| May 29, 12:59 PM CDT | Flash Flood Warning | BIS | 6 hr |
| May 29, 7:13 PM CDT | Flash Flood Warning | BIS | 3 hr |
| Jun 16, 7:20 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 16, 11:56 PM CDT | Severe Thunderstorm Warning | BIS | 64 min |
| Jun 17, 12:26 AM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jun 17, 12:46 AM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jun 17, 2:05 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 17, 12:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 17, 12:21 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 17, 2:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jun 17, 2:54 PM CDT | Severe Thunderstorm Warning | BIS | 66 min |
| Jun 17, 3:33 PM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| Jun 17, 3:54 PM CDT | Areal Flood Advisory | BIS | 4 hr |
| Jun 17, 4:02 PM CDT | Severe Thunderstorm Warning | BIS | 58 min |
| Jun 17, 4:06 PM CDT | Flash Flood Warning | BIS | 117 min |
| Jun 17, 4:32 PM CDT | Severe Thunderstorm Warning | BIS | 28 min |
| Jun 17, 4:58 PM CDT | Flash Flood Warning | BIS | 6 hr |
| Jun 17, 6:26 PM CDT | Areal Flood Advisory | BIS | 3 hr |
| Jun 17, 7:47 PM CDT | River Flood Warning | BIS | 39 hr |
| Jun 18, 12:39 PM CDT | River Flood Warning | BIS | 22 hr |
| Jun 21, 3:01 AM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jun 21, 3:10 AM CDT | Areal Flood Advisory | BIS | 22 hr |
| Jun 21, 3:27 AM CDT | Severe Thunderstorm Warning | BIS | 33 min |
| Jun 21, 4:00 AM CDT | Severe Thunderstorm Warning | BIS | 33 min |
| Jun 22, 12:59 AM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jun 24, 1:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 24, 6:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 24, 7:23 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 24, 8:25 PM CDT | Severe Thunderstorm Warning | BIS | 65 min |
| Jun 24, 8:49 PM CDT | Tornado Warning | BIS | 26 min |
| Jun 24, 8:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 24, 9:14 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jun 24, 9:19 PM CDT | Tornado Warning | BIS | 26 min |
| Jun 24, 9:27 PM CDT | Severe Thunderstorm Warning | BIS | 48 min |
| Jun 24, 9:44 PM CDT | Severe Thunderstorm Warning | BIS | 46 min |
| Jun 24, 9:57 PM CDT | Tornado Warning | BIS | 33 min |
| Jun 24, 10:17 PM CDT | Tornado Warning | BIS | 28 min |
| Jun 24, 10:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 24, 10:43 PM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| Jun 24, 10:48 PM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jun 25, 12:20 AM CDT | Severe Thunderstorm Warning | BIS | 40 min |
| Jun 25, 12:47 AM CDT | Tornado Warning | BIS | 28 min |
| Jun 25, 12:51 AM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jun 25, 1:15 AM CDT | Tornado Warning | BIS | 45 min |
| Jun 25, 8:00 PM CDT | Severe Thunderstorm Warning | BIS | 60 min |
| Jun 25, 8:56 PM CDT | Severe Thunderstorm Warning | BIS | 64 min |
| Jun 25, 8:57 PM CDT | Flash Flood Warning | BIS | 6 hr |
| Jun 26, 2:26 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 26, 3:02 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 8:35 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 30, 11:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 1, 1:06 AM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| Jul 1, 1:59 AM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jul 3, 12:44 AM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jul 3, 1:20 AM CDT | Areal Flood Advisory | BIS | 111 min |
| Jul 3, 1:43 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 3, 5:03 AM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| Jul 5, 2:44 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jul 5, 2:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 5, 3:44 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Jul 10, 2:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 12, 8:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 12, 8:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 10:14 PM CDT | Tornado Warning | BIS | 46 min |
| Jul 12, 11:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 13, 2:26 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 14, 3:00 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 20, 2:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 20, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 4:38 PM CDT | Severe Thunderstorm Warning | BIS | 67 min |
| Jul 20, 5:28 PM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| Jul 20, 5:45 PM CDT | Severe Thunderstorm Warning | BIS | 60 min |
| Jul 20, 6:23 PM CDT | Severe Thunderstorm Warning | BIS | 67 min |
| Jul 26, 4:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 26, 5:15 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 26, 6:34 PM CDT | Severe Thunderstorm Warning | BIS | 46 min |
| Jul 26, 6:46 PM CDT | Tornado Warning | BIS | 29 min |
| Jul 26, 6:49 PM CDT | Severe Thunderstorm Warning | BIS | 45 min |
| Jul 26, 6:50 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 26, 7:09 PM CDT | Tornado Watch | SPC | 6 hr |
| Jul 26, 7:11 PM CDT | Tornado Warning | BIS | 49 min |
| Jul 26, 7:32 PM CDT | Tornado Warning | BIS | 43 min |
| Jul 26, 7:56 PM CDT | Severe Thunderstorm Warning | BIS | 49 min |
| Jul 26, 8:24 PM CDT | Severe Thunderstorm Warning | BIS | 22 min |
| Jul 29, 4:38 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 29, 6:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jul 29, 9:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 29, 9:46 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jul 29, 11:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 30, 3:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 31, 1:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 31, 5:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 31, 9:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 3:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 1, 3:39 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 1, 6:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 1, 9:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 2, 1:05 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| Aug 7, 2:22 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 9, 3:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 9, 5:14 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Aug 9, 5:16 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 9, 6:14 PM CDT | Severe Thunderstorm Warning | BIS | 61 min |
| Aug 9, 7:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Aug 9, 8:46 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Aug 9, 11:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 10, 12:07 AM CDT | Severe Thunderstorm Warning | BIS | 53 min |
| Aug 10, 2:38 PM CDT | Severe Thunderstorm Warning | BIS | 58 min |
| Aug 10, 3:29 PM CDT | Severe Thunderstorm Warning | BIS | 40 min |
| Aug 11, 3:59 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 5:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 8:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 11, 11:18 PM CDT | Severe Thunderstorm Warning | BIS | 32 min |
| Aug 11, 11:28 PM CDT | Areal Flood Advisory | BIS | 6 hr |
| Aug 11, 11:40 PM CDT | Severe Thunderstorm Warning | BIS | 65 min |
| Aug 11, 11:42 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 12, 12:17 AM CDT | Severe Thunderstorm Warning | BIS | 58 min |
| Aug 12, 12:39 AM CDT | Severe Thunderstorm Warning | BIS | 66 min |
| Aug 12, 8:59 PM CDT | Tornado Warning | BIS | 31 min |
| Aug 12, 9:25 PM CDT | Severe Thunderstorm Warning | BIS | 65 min |
| Aug 12, 9:29 PM CDT | Tornado Warning | BIS | 31 min |
| Aug 12, 9:57 PM CDT | Tornado Warning | BIS | 33 min |
| Aug 12, 10:26 PM CDT | Severe Thunderstorm Warning | BIS | 64 min |
| Aug 12, 10:35 PM CDT | Areal Flood Advisory | BIS | 6 hr |
| Aug 12, 11:25 PM CDT | Severe Thunderstorm Warning | BIS | 65 min |
| Aug 30, 1:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Sep 9, 3:35 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 9, 8:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
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 | 62 |
| Tornado Warning | 13 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 42 |
| Flooding | |
| Flash Flood Warning | 9 |
| River Flood Warning | 2 |
| Areal Flood Advisory | 12 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.