Alert archive / North Dakota / Ward County
Weather alerts in Ward County, North Dakota, 2013
75 weather alerts in 2013, 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 2013. Tap one for its archive.
- Alerts
- 75
- Warnings
- 39
- Watches
- 13
- Advisories
- 4
- Busiest month
- July32 alerts
- Busiest day
- June 25, 20135 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 1 tornado warnings covering Ward County in 2013 had a tornado report inside them.
Ward County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 19 | 11 | 42% | 10 | 80% | 27 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Bismarck, ND: tornado warnings | 16 | 4 | 75% | 10 | 50% | 8 min |
| NWS Bismarck, ND: severe thunderstorm warnings | 239 | 139 | 42% | 276 | 90% | 24 min |
| NWS Bismarck, ND: flash flood warnings | 14 | 5 | 64% | 7 | 86% | 55 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 |
|---|---|---|---|
| Mar 25, 2:11 PM CDT | River Flood Warning | BIS | 29 days |
| Apr 4, 1:46 PM CDT | River Flood Warning | BIS | 5 days |
| Apr 5, 1:46 PM CDT | River Flood Warning | BIS | 9 days |
| Apr 5, 1:46 PM CDT | River Flood Warning | BIS | 9 days |
| Apr 24, 11:47 AM CDT | River Flood Warning | BIS | 8 days |
| Apr 26, 3:08 PM CDT | River Flood Warning | BIS | 5 days |
| Apr 26, 3:08 PM CDT | River Flood Warning | BIS | 4 days |
| Apr 26, 4:45 PM CDT | River Flood Warning | BIS | 6 days |
| Apr 26, 4:49 PM CDT | Areal Flood Warning | BIS | 8 days |
| Apr 29, 3:17 PM CDT | River Flood Warning | BIS | 4 days |
| May 9, 2:20 PM CDT | Fire Weather Watch | BIS | 14 hr |
| May 10, 4:34 AM CDT | Red Flag Warning | BIS | 14 hr |
| May 11, 3:40 PM CDT | Fire Weather Watch | BIS | 37 hr |
| May 12, 4:40 AM CDT | Fire Weather Watch | BIS | 35 hr |
| May 13, 4:39 AM CDT | Red Flag Warning | BIS | 15 hr |
| May 13, 3:54 PM CDT | Red Flag Warning | BIS | 29 hr |
| May 22, 11:41 AM CDT | River Flood Warning | BIS | 43 days |
| May 31, 12:50 PM CDT | River Flood Warning | BIS | 10 days |
| May 31, 12:50 PM CDT | River Flood Warning | BIS | 71 hr |
| May 31, 5:13 PM CDT | Areal Flood Advisory | BIS | 24 hr |
| Jun 4, 9:27 AM CDT | Areal Flood Advisory | BIS | 53 hr |
| Jun 4, 12:10 PM CDT | River Flood Warning | BIS | 5 days |
| Jun 4, 3:10 PM CDT | River Flood Warning | BIS | 4 days |
| Jun 4, 5:08 PM CDT | River Flood Warning | BIS | 40 hr |
| Jun 22, 3:53 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 22, 9:52 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 25, 2:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 25, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 25, 4:01 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jun 25, 4:16 PM CDT | Tornado Warning | BIS | 29 min |
| Jun 25, 6:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 25, 9:00 PM CDT | Mesoscale Discussion | SPC | 45 min |
| Jul 5, 6:08 PM CDT | Severe Thunderstorm Warning | BIS | 37 min |
| Jul 5, 6:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 5, 6:40 PM CDT | Severe Thunderstorm Warning | BIS | 50 min |
| Jul 5, 7:05 PM CDT | Areal Flood Advisory | BIS | 6 hr |
| Jul 5, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | 46 min |
| Jul 8, 5:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 6:22 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 8, 8:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 8, 9:48 PM CDT | Severe Thunderstorm Warning | BIS | 57 min |
| Jul 8, 10:46 PM CDT | Severe Thunderstorm Warning | BIS | 59 min |
| Jul 11, 4:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 11, 7:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 13, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 6:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 13, 7:07 PM CDT | Severe Thunderstorm Warning | BIS | 38 min |
| Jul 13, 7:41 PM CDT | Severe Thunderstorm Warning | BIS | 49 min |
| Jul 13, 8:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 15, 3:48 PM CDT | Tornado Watch | SPC | 8 hr |
| Jul 15, 7:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jul 15, 9:57 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 10:36 PM CDT | Severe Thunderstorm Warning | BIS | 54 min |
| Jul 16, 1:11 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 16, 2:37 AM CDT | Severe Thunderstorm Warning | BIS | 53 min |
| Jul 19, 4:01 PM CDT | Severe Thunderstorm Warning | BIS | 44 min |
| Jul 19, 6:48 PM CDT | Severe Thunderstorm Warning | BIS | 42 min |
| Jul 21, 2:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 21, 2:43 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 21, 3:24 PM CDT | Severe Thunderstorm Warning | BIS | 66 min |
| Jul 21, 4:58 PM CDT | Severe Thunderstorm Warning | BIS | 62 min |
| Jul 21, 5:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 21, 8:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 29, 2:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 5, 8:47 PM CDT | Severe Thunderstorm Warning | BIS | 43 min |
| Aug 28, 8:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 28, 11:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 30, 3:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Aug 30, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 30, 7:35 PM CDT | Severe Thunderstorm Warning | BIS | 55 min |
| Aug 30, 8:21 PM CDT | Severe Thunderstorm Warning | BIS | 39 min |
| Sep 9, 12:13 AM CDT | Areal Flood Advisory | BIS | 6 hr |
| Sep 9, 5:23 PM CDT | Severe Thunderstorm Warning | BIS | 52 min |
| Sep 18, 8:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 10:06 PM CDT | Severe Thunderstorm Warning | BIS | 54 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 | 19 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 19 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 15 |
| Areal Flood Advisory | 4 |
| 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 archive20122014
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.