Freeze Watch
FREEZE WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING
Take steps now to protect tender plants from the cold.
Chester County, Pennsylvania: tornado and severe weather warnings
A freeze watch is in effect for Chester County as of 8:37 PM EDT.
Open the live map on Chester County Get a message when a warning reaches your address
The map shows radar, every warning shape, and the path and arrival time of each storm cell headed toward the center of Chester County. Tap your own street on it for times that apply to you.
The last 12 months in Chester County
- 4 tornado warnings
- 53 severe thunderstorm warnings
- 21 flash flood warnings
- 5 tornado watches
- 18 severe thunderstorm watches
The most recent tornado warning that included Chester County was issued Aug 20, 2026 by the Weather Service office in Philadelphia/Mt Holly.
| Date | Issued | Type | Office | Product |
|---|---|---|---|---|
| Sep 3, 2026 | 1:34 AM EDT | Flash flood warning | PHI | text |
| Sep 2, 2026 | 12:40 PM EDT | Severe thunderstorm warning | PHI | text |
| Sep 1, 2026 | 8:44 PM EDT | Flash flood warning | PHI | text |
| Sep 1, 2026 | 8:17 PM EDT | Severe thunderstorm warning | PHI | text |
| Sep 1, 2026 | 7:43 PM EDT | Severe thunderstorm warning | PHI | text |
| Sep 1, 2026 | 7:13 PM EDT | Severe thunderstorm warning | PHI | text |
| Sep 1, 2026 | 6:56 PM EDT | Severe thunderstorm warning | PHI | text |
| Aug 30, 2026 | 10:04 PM EDT | Flash flood warning | PHI | text |
| Aug 27, 2026 | 10:36 PM EDT | Flash flood warning | PHI | text |
| Aug 27, 2026 | 10:22 PM EDT | Severe thunderstorm warning | PHI | text |
| Aug 27, 2026 | 5:08 PM EDT | Flash flood warning | PHI | text |
| Aug 27, 2026 | 4:06 PM EDT | Severe thunderstorm warning | PHI | text |
A warning counts here if the Weather Service listed Chester County in it, even if the warned area covered only part of the county.
Nearby
- Delaware County, PA
- Montgomery County, PA
- Lancaster County, PA
- New Castle County, DE
- Cecil County, MD
- Berks County, PA
- Philadelphia County, PA
- Salem County, NJ
- All of Pennsylvania
What the alerts mean
Alerts come from the National Weather Service and refresh every minute. Past warnings come from the Iowa Environmental Mesonet's archive of Weather Service products. During a warning, also listen to local radio, TV or a weather radio.