Excessive rainfall outlook
- Day 1 (Tue 10/27): no flooding rain expected
- Day 2 (Wed 10/28): Marginal risk of flooding rain
- Day 3 (Thu 10/29): Slight risk of flooding rain
- Day 4 (Fri 10/30): Slight risk of flooding rain
- Day 5 (Sat 10/31): Marginal risk of flooding rain
Latest update issued 2026-10-27 23:57 UTC. Each day runs from 7 a.m. to 7 a.m. Eastern standard time (12Z to 12Z).
What the levels mean
The percentage is the chance that rain will be heavy enough to cause flash flooding within 25 miles of a point. Marginal means at least 5%, slight at least 15%, moderate at least 40% and high at least 70%.
This is a forecast of risk over a wide area, not a promise that a given street will or won't flood. Flooding can still happen outside the shaded areas, and even a marginal or slight risk can mean dangerous flooding in a few places. Act on flash flood warnings from your local National Weather Service office, and never drive through water over a road.
Excessive rainfall outlooks: NOAA Weather Prediction Center (public domain). Flash flood warnings: National Weather Service.