Alert archive / Iowa / Johnson County / 2018
Weather alerts in Johnson County, Iowa, May 2018
18 weather alerts in May 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 18
- Warnings
- 5
- Watches
- 3
- Advisories
- 1
- Busiest day
- May 3, 20185 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, 1:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| May 2, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 2, 7:18 PM CDT | Severe Thunderstorm Warning | DVN | 57 min |
| May 2, 7:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 2, 7:24 PM CDT | Tornado Warning | DVN | 51 min |
| May 2, 7:51 PM CDT | Tornado Warning | DVN | 20 min |
| May 2, 8:07 PM CDT | Severe Thunderstorm Warning | DVN | 53 min |
| May 3, 9:27 PM CDT | River Flood Watch | DVN | 14 hr |
| May 4, 11:42 AM CDT | River Flood Watch | DVN | 7 days |
| May 11, 11:45 PM CDT | Special Weather Statement | DVN | 45 min |
| May 12, 12:11 AM CDT | Special Weather Statement | DVN | 64 min |
| May 12, 1:04 AM CDT | Mesoscale Discussion | SPC | 116 min |
| May 12, 2:11 AM CDT | Special Weather Statement | DVN | 64 min |
| May 12, 2:59 AM CDT | Special Weather Statement | DVN | 61 min |
| May 14, 6:05 AM CDT | Special Weather Statement | DVN | 25 min |
| May 22, 3:34 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| May 26, 1:07 AM CDT | Severe Thunderstorm Warning | DVN | 38 min |
| May 29, 1:31 PM CDT | Special Weather Statement | DVN | 59 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 | 3 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 6 |
| Flooding | |
| River Flood Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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. Rebuilt daily.