Weather alerts in the United States, September 1990
721 weather alerts in September 1990, from the National Weather Service and the Storm Prediction Center. Each alert counts once, however many counties it covered.
Weather alerts by state
Each state shaded by its count. Tap a state for its own archive.
- Alerts
- 721
- Warnings
- 721
- Watches
- 0
- Advisories
- 0
- Busiest day
- September 7, 1990116 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 | 566 |
| Tornado Warning | 41 |
| Flooding | |
| Flash Flood Warning | 114 |
By state
Every state and territory, with the alerts that covered any part of it. Each state’s page lists every one of them.
- Texas1,698
- Oklahoma736
- Kansas613
- Ohio550
- Alabama539
- Georgia465
- Mississippi450
- Pennsylvania447
- Nebraska443
- Louisiana440
- Arkansas430
- Iowa407
- North Carolina383
- Illinois354
- Indiana345
- Missouri318
- South Dakota313
- New York302
- Florida268
- West Virginia249
- Minnesota242
- Virginia219
- Wisconsin215
- Kentucky202
- South Carolina183
- Arizona178
- Tennessee153
- Colorado139
- North Dakota123
- Michigan118
- Montana101
- New Jersey100
- Maryland89
- New Mexico80
- California76
- Wyoming68
- Vermont50
- Massachusetts29
- Nevada25
- Idaho23
Nearby
Alerts in force nowThe tornado archiveThe radar archive19891991
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.