Alert archive / New York / Flash Flood Warnings in 2026

Flash Flood Warning 10, NWS Buffalo, NY

July 28, 2026Niagara County, New York

NWS Buffalo, NY issued this flash flood warning at Jul 28, 2026, 2:26 AM EDT for Niagara County, New York. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2026, 2:26 AM EDT (06:26 UTC)
Expired: Jul 28, 2026, 6:30 AM EDT
In force: 4 hr
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Flood severity: None

County Niagara County, NY

The radar

The Buffalo radar (KBUF), 30 km from the middle of the area, began a volume at 06:27 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 4:45 AM EDT	FLASH FLOOD	Lewiston, NY	Niagara County 911 Dispatch relayed report of heavy flooding just north of Center Street in Lewiston. Location approximated.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 6.4 hours before the alert went out and 34 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1867 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 877 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

As transmitted.

464 
WGUS51 KBUF 280626
FFWBUF
NYC063-281030-
/O.NEW.KBUF.FF.W.0010.260728T0626Z-260728T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Buffalo NY
226 AM EDT Tue Jul 28 2026

The National Weather Service in Buffalo has issued a

* Flash Flood Warning for...
  Central Niagara County in western New York...

* Until 630 AM EDT.

* At 226 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 2 inches are 
  possible in the warned area. Flash flooding is ongoing or 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...
  Lockport, Lewiston, Sanborn, Cambria Center, Ransomville and Model 
  City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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.

&&

LAT...LON 4311 7906 4312 7907 4313 7906 4314 7904
      4316 7905 4317 7905 4320 7905 4321 7906
      4322 7905 4323 7861 4312 7859 4310 7901
      4310 7906

FLASH FLOOD...RADAR INDICATED

$$

Jaszka

1 follow-up statement

684 
WGUS71 KBUF 281023
FFSBUF

Flash Flood Statement
National Weather Service Buffalo NY
623 AM EDT Tue Jul 28 2026

NYC063-281033-
/O.EXP.KBUF.FF.W.0010.000000T0000Z-260728T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Niagara NY-
623 AM EDT Tue Jul 28 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 630 AM EDT THIS MORNING FOR 
CENTRAL NIAGARA COUNTY...

Flood waters have receded. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

&&

LAT...LON 4312 7907 4313 7906 4314 7905 4314 7904
      4317 7905 4320 7905 4321 7906 4322 7905
      4323 7861 4312 7859 4310 7901 4310 7906
      4311 7906

$$

EAJ

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 12:20 AM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus	55 min
Jul 28, 1:35 AM EDT	Special Marine Warning	BUF		85 min
Jul 28, 2:23 AM EDT	Flash Flood Warning	BUF	Cattaraugus	3 hr
Jul 28, 4:03 AM EDT	Small Craft Advisory	BUF		24 hr
Jul 28, 4:04 AM EDT	Beach Hazards Statement	BUF	Cayuga, Chautauqua, Monroe, Niagara, Orleans, Oswego and 1 more	24 hr
Jul 28, 8:06 AM EDT	Flash Flood Warning	BUF	Allegany, Cattaraugus	4 hr
Jul 28, 4:00 PM EDT	Small Craft Advisory	BUF		12 hr

Nearby

Flash Flood Warnings in New York, 2026 Every flash flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.