Alert archive / New York / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 13, NWS Buffalo, NY

March 31, 2026Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Mar 31, 2026, 6:58 PM EDT for Chautauqua County, New York. It was in force for 47 min. 4 reports 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: Mar 31, 2026, 6:58 PM EDT (22:58 UTC)
Expired: Mar 31, 2026, 7:45 PM EDT
In force: 47 min
Issued by: NWS Buffalo, NY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 86 km from the middle of the area, began a volume at 23:01 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
Mar 31, 7:10 PM EDT	TSTM WND DMG	3 Ssw Fredonia, NY	Power poles snapped.
Mar 31, 7:25 PM EDT	TSTM WND GST 61	2 Sw Fredonia, NY	NYS Mesonet station FRED Fredonia.
Mar 31, 7:25 PM EDT	MARINE TSTM WIND 52	1 Nw Dunkirk, NY	Mesonet station DBLN6 3 NNW Fredonia.
Mar 31, 7:30 PM EDT	TSTM WND GST 66	3 Ene Dunkirk, NY	ASOS station KDKK Dunkirk Airport.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 31, 2:16 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.0 hours before the alert went out and 86 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 731 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 290 m²/s²
0-3 km storm-relative helicity: 283 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

999 
WUUS51 KBUF 312258
SVRBUF
NYC013-312345-
/O.NEW.KBUF.SV.W.0013.260331T2258Z-260331T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Buffalo NY
658 PM EDT Tue Mar 31 2026

The National Weather Service in Buffalo has issued a

* Severe Thunderstorm Warning for...
  Chautauqua County in western New York...

* Until 745 PM EDT.

* At 657 PM EDT, a severe thunderstorm was located near Northwest
  Harborcreek, or 9 miles east of Erie, moving east at 55 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Jamestown, Dunkirk, Fredonia, Westfield, Lakewood, Silver Creek,
  Falconer, Mayville, Clymer, and Long Point State Park.

This includes the following highways...
 Interstate 90 between exits 58 and 61.
 Interstate 86 between exits 4 and 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4258 7916 4257 7910 4254 7906 4200 7906
      4200 7976 4227 7976 4228 7973 4231 7977
TIME...MOT...LOC 2257Z 270DEG 49KT 4215 7991 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Mitchell

3 follow-up statements

274 
WWUS51 KBUF 312307
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
707 PM EDT Tue Mar 31 2026

NYC013-312345-
/O.CON.KBUF.SV.W.0013.000000T0000Z-260331T2345Z/
Chautauqua NY-
707 PM EDT Tue Mar 31 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR CHAUTAUQUA COUNTY...

At 706 PM EDT, a severe thunderstorm was located over Findley Lake,
or 17 miles east of Erie, moving east at 55 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Law enforcement.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Jamestown, Dunkirk, Fredonia, Westfield, Lakewood, Silver Creek,
Falconer, Mayville, Clymer, and Long Point State Park.

This includes the following highways...
 Interstate 90 between exits 58 and 61.
 Interstate 86 between exits 4 and 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm has a history of producing wind damage.

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4258 7916 4257 7910 4254 7906 4200 7906
      4200 7976 4227 7976 4228 7973 4231 7977
TIME...MOT...LOC 2306Z 272DEG 49KT 4209 7974 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

Mitchell

933 
WWUS51 KBUF 312334
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
734 PM EDT Tue Mar 31 2026

NYC013-312345-
/O.CON.KBUF.SV.W.0013.000000T0000Z-260331T2345Z/
Chautauqua NY-
734 PM EDT Tue Mar 31 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR EASTERN CHAUTAUQUA COUNTY...

At 734 PM EDT, severe thunderstorms were located along a line
extending from near Evangola State Park to near Jamestown West,
moving east at 60 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Law enforcement.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Jamestown, Dunkirk, Fredonia, Silver Creek, Falconer, Jamestown West,
Frewsburg, Busti, Sheridan, and Gerry.

This includes the following highways...
 Interstate 90 between exits 58 and 59.
 Interstate 86 between exits 11 and 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4200 7930 4247 7933 4250 7931 4258 7916
      4257 7913 4257 7911 4254 7908 4254 7906
      4200 7906
TIME...MOT...LOC 2334Z 253DEG 51KT 4263 7918 4205 7929 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

PP

387 
WWUS51 KBUF 312344
SVSBUF

Severe Weather Statement
National Weather Service Buffalo NY
744 PM EDT Tue Mar 31 2026

NYC013-312353-
/O.EXP.KBUF.SV.W.0013.000000T0000Z-260331T2345Z/
Chautauqua NY-
744 PM EDT Tue Mar 31 2026

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHAUTAUQUA COUNTY WILL
EXPIRE AT 745 PM EDT...

The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
western New York.

Remember, a Severe Thunderstorm Warning still remains in effect for 
Cattaraugus and western Allegany counties until 830 PM!

&&

LAT...LON 4200 7930 4247 7933 4250 7931 4258 7916
      4257 7913 4257 7911 4254 7908 4254 7906
      4200 7906
TIME...MOT...LOC 2343Z 270DEG 49KT 4263 7906 4205 7917 

$$

PP

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 3:46 AM EDT	Small Craft Advisory	BUF		9 hr
Mar 31, 9:57 AM EDT	Areal Flood Warning	BUF	Genesee, Livingston, Monroe, Ontario, Wyoming	98 min
Mar 31, 1:14 PM EDT	River Flood Warning	BUF	Jefferson, Lewis, Oneida	35 hr
Mar 31, 2:27 PM EDT	Special Marine Warning	BUF		63 min
Mar 31, 2:41 PM EDT	Severe Thunderstorm Warning	BUF	Cattaraugus, Chautauqua, Erie, Wyoming	64 min
Mar 31, 3:26 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Erie, Livingston, Wyoming	49 min
Mar 31, 3:32 PM EDT	River Flood Warning	BUF	Cattaraugus, Chautauqua, Erie, Wyoming	11 hr
Mar 31, 3:43 PM EDT	Tornado Warning	BUF	Allegany, Cattaraugus	32 min
Mar 31, 4:06 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Livingston, Wyoming	39 min
Mar 31, 4:30 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	18 min
Mar 31, 4:52 PM EDT	Flash Flood Warning	BUF	Allegany, Cattaraugus, Livingston	7 hr
Mar 31, 6:25 PM EDT	Areal Flood Warning	BUF	Erie, Wyoming	6 hr
Mar 31, 6:59 PM EDT	Areal Flood Warning	BUF	Monroe	48 hr
Mar 31, 7:02 PM EDT	Special Marine Warning	BUF		43 min
Mar 31, 7:16 PM EDT	Areal Flood Warning	BUF	Livingston, Ontario	6 hr
Mar 31, 7:26 PM EDT	Special Marine Warning	BUF		33 min
Mar 31, 7:38 PM EDT	Severe Thunderstorm Warning	BUF	Chautauqua, Erie, Genesee, Wyoming	37 min
Mar 31, 7:42 PM EDT	Severe Thunderstorm Warning	BUF	Allegany, Cattaraugus, Chautauqua, Erie, Wyoming	33 min
Mar 31, 7:59 PM EDT	River Flood Warning	BUF	Erie	7 hr

Nearby

Severe Thunderstorm Warnings in New York, 2026 Every severe thunderstorm 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.