Alert archive / Iowa / Johnson County / 2024
Weather alerts in Johnson County, Iowa, May 2024
34 weather alerts in May 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 34
- Warnings
- 18
- Watches
- 6
- Advisories
- 0
- Busiest day
- May 21, 202411 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|
| May 2, 9:25 PM CDT | River Flood Warning | DVN | 16 hr |
| May 7, 3:51 AM CDT | Severe Thunderstorm Warning | DVN | 39 min |
| May 7, 4:26 AM CDT | Severe Thunderstorm Warning | DVN | 45 min |
| May 19, 4:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 20, 12:39 AM CDT | Special Weather Statement | DVN | 36 min |
| May 20, 12:50 AM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| May 20, 1:11 AM CDT | Severe Thunderstorm Warning | DVN | 35 min |
| May 21, 1:45 AM CDT | Flood Watch | DVN | 19 hr |
| May 21, 5:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| May 21, 6:15 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 21, 9:29 AM CDT | Mesoscale Discussion | SPC | 91 min |
| May 21, 12:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 21, 12:43 PM CDT | Severe Thunderstorm Warning | DVN | 29 min |
| May 21, 1:14 PM CDT | Tornado Watch | SPC | 8 hr |
| May 21, 1:16 PM CDT | Special Weather Statement | DVN | 59 min |
| May 21, 6:18 PM CDT | Severe Thunderstorm Warning | DVN | 42 min |
| May 21, 6:38 PM CDT | Severe Thunderstorm Warning | DVN | 52 min |
| May 21, 6:52 PM CDT | Severe Thunderstorm Warning | DVN | 38 min |
| May 21, 7:11 PM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| May 22, 10:57 AM CDT | River Flood Warning | DVN | 10 hr |
| May 23, 9:51 AM CDT | River Flood Watch | DVN | 31 hr |
| May 24, 2:38 AM CDT | Flood Watch | DVN | 13 hr |
| May 24, 2:44 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 24, 4:11 AM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| May 24, 5:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| May 24, 6:05 AM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| May 24, 6:29 AM CDT | Tornado Warning | DVN | 46 min |
| May 24, 6:38 AM CDT | Severe Thunderstorm Warning | DVN | 67 min |
| May 24, 7:02 AM CDT | Tornado Warning | DVN | 43 min |
| May 24, 4:56 PM CDT | River Flood Warning | DVN | 4 days |
| May 27, 1:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 27, 3:43 PM CDT | Severe Thunderstorm Warning | DVN | 47 min |
| May 27, 5:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 5:10 PM CDT | Special Weather Statement | DVN | 35 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 | 13 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 3 |
| Flooding | |
| River Flood Warning | 3 |
| Flood Watch | 2 |
| River Flood Watch | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20232025
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.