Alert archive / Illinois / Stephenson County / 2009
Weather alerts in Stephenson County, Illinois, April 2009
9 weather alerts in April 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
- Alerts
- 9
- Warnings
- 1
- Watches
- 2
- Advisories
- 2
- Busiest day
- April 26, 20094 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 |
|---|---|---|---|
| Apr 4, 4:00 AM CDT | Winter Storm Watch | DVN | 12 hr |
| Apr 4, 3:43 PM CDT | Winter Storm Warning | DVN | 28 hr |
| Apr 4, 3:43 PM CDT | Winter Weather Advisory | DVN | 28 hr |
| Apr 23, 11:42 PM CDT | Dense Fog Advisory | DVN | 8 hr |
| Apr 25, 5:32 PM CDT | Mesoscale Discussion | SPC | 73 min |
| Apr 25, 11:29 PM CDT | Special Weather Statement | DVN | 61 min |
| Apr 26, 2:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 26, 5:02 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 26, 5:14 PM CDT | Mesoscale Discussion | SPC | 61 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 | |
| Tornado Watch | 1 |
| Mesoscale Discussion | 3 |
| Special Weather Statement | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20082010
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.