WEATHER CLOSEOUT — NEWS & CIVIC AFFAIRS
Rockland’s warning expired. No active NWS alert was listed at 12:55 p.m.
Rockland County’s Flash Flood Warning expired at 12:45 p.m. Sunday. Ten minutes later, the National Weather Service active-alert feed showed no active alert for the county. That ends the warning posture—not the need to avoid standing water or check a specific road before traveling.
What to know now
- Warning status: the Flash Flood Warning expired at 12:45 p.m. Sunday.
- Active-alert check: NWS listed zero active alerts for Rockland County at 12:55 p.m.
- Important limit: an expired warning does not establish that every road, underpass, stream or low spot is safe.
- Driving: never enter a flooded road or drive around a barricade; turn around and use another route.
- Before traveling: check current NWS alerts and a responsible road or municipal source for the specific route.
- Emergency: call 911 if you are in immediate danger.
What the warning documented
The archived NWS Flash Flood Warning ↗ said radar and automated gauges indicated thunderstorms producing heavy rain. Between 1.5 and 4 inches had fallen by 11:04 a.m.; rainfall rates of 1 to 2 inches an hour were expected, with another 0.5 to 1.5 inches possible.
NWS said possible impacts included flooding of small creeks and streams, urban areas, highways, streets, underpasses, poor-drainage areas and other low spots. The warning named Tappan, Pearl River, Orangeburg and Chestnut Ridge among the Rockland locations that could experience flash flooding, along with communities in northeastern Bergen County. That list did not establish the condition of any one street.
The active alert ended on schedule
NWS first issued the warning at 8:21 a.m. through 11:15 a.m., then extended it at 11:04 a.m. through 12:45 p.m. At 12:55 p.m., the agency’s active-alert feed returned zero active alerts for Rockland County. No later warning, watch or advisory replaced it in that check.
That is a status check, not an all-clear for every block. Water can remain after a warning ends, and a countywide alert feed does not verify a specific street. Keep official alerts available and give any rising or standing water plenty of room.
If water covers the road, do not test it
NWS flood-safety guidance is direct: do not walk through floodwater, drive into a flooded roadway or go around a barricade. Water can be deeper than it looks and can conceal a washed-out surface, debris, chemicals or electrical hazards. Read the federal flood-safety guidance ↗
If water begins rising around you, move to higher ground and call 911 if you are in immediate danger. Do not enter a flooded basement or room where water may be touching outlets or electrical cords.
What changes for a resident: Rockland is no longer under the Flash Flood Warning, but an expired alert is not proof that a particular road is clear. Do not enter standing water or go around a barricade; check current conditions for the route and call 911 for immediate danger.
Primary sources: National Weather Service Flash Flood Warning ↗, first issued September 13, 2026, at 8:21 a.m. and extended at 11:04 a.m. through 12:45 p.m.; the NWS active-alert feed for Rockland County ↗; NWS Rockland County forecast ↗; and NWS flood-safety guidance ↗. Active alerts checked September 13, 2026, at 12:55 p.m. EDT; the feed returned zero active alerts for Rockland. The warning was based on radar and automated rain gauges, and this article does not independently confirm flooding or reopening on a specific Rockland road.