Weather Alert WatchOfficial-source alert index
NWS feedSource freshLast successful check:
Ended official alertUpdated

Flash Flood Warning for Allegany, NY; Cattaraugus, NY

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

At 1032 AM EDT, Doppler radar indicated thunderstorms producing heavy rain continue across the warned area this morning, where between 2.5 and 4.5 inches of rain have already fallen overnight and this morning. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is expected...

What the bulletin says to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.

Read official NWS bulletin

Full official description

Bulletin details

At 1032 AM EDT, Doppler radar indicated thunderstorms producing heavy rain continue across the warned area this morning, where between 2.5 and 4.5 inches of rain have already fallen overnight and this morning. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Olean, Salamanca, Allegany State Park, Allegany, St. Bonaventure, Weston Mills, Hinsdale, Carrollton, Portville, Vandalia, Knapp Creek, Rock City Park, Limestone, Kill Buck, Haskell Flats, Ceres, Little Genesee and Allegheny Reservoir.

Lifecycle record

Official revisions

2 captured
  1. Update

    Flash Flood Warning issued July 28 at 10:32AM EDT until July 28 at 12:15PM EDT by NWS Buffalo NY

    Official revision
  2. Alert

    Flash Flood Warning issued July 28 at 8:06AM EDT until July 28 at 12:15PM EDT by NWS Buffalo NY

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Buffalo NY. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections