Alert archive / New York / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 25, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at May 29, 2011, 9:17 PM EDT for Cattaraugus County, Chautauqua County, New York. It was in force for 58 min. 2 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
- May 29, 2011, 9:17 PM EDT (01:17 UTC)
- Expired
- May 29, 2011, 10:15 PM EDT
- In force
- 58 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Cattaraugus County, NY, Chautauqua County, NY
The radar
The Buffalo radar (KBUF), 65 km from the middle of the area, began a volume at 01:16 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 |
|---|---|---|---|
| May 29, 9:40 PM EDT | TSTM WND DMG | Dayton, NY | LINES AND TREES DOWN. |
| May 29, 9:40 PM EDT | TSTM WND DMG | Leon, NY | LINES AND TREES DOWN. |
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 |
|---|---|---|---|
| May 29, 8:52 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 1.3 hours before the alert went out and 64 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.
- Mixed-layer CAPE
- 1339 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 834 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
837
WUUS51 KBUF 300117
SVRBUF
NYC009-013-300215-
/O.NEW.KBUF.SV.W.0025.110530T0117Z-110530T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
917 PM EDT SUN MAY 29 2011
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
EASTERN CHAUTAUQUA COUNTY IN WESTERN NEW YORK
* UNTIL 1015 PM EDT
* AT 912 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 27 MILES NORTH OF FALCONER TO 18 MILES SOUTHWEST
OF LAKEWOOD...AND MOVING EAST AT 35 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...
LAKEWOOD...
JAMESTOWN WEST...
FALCONER...
FREWSBURG...
OTTO...
ALLEGANY PARK...
ASHFORD HOLLOW...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 4200 7936 4251 7931 4253 7899 4248 7896
4244 7889 4244 7884 4246 7880 4246 7878
4249 7871 4248 7870 4249 7866 4249 7865
4200 7864
TIME...MOT...LOC 0115Z 283DEG 32KT 4249 7932 4233 7926
4210 7945 4197 7958
$$
TMA2 follow-up statements
572
WWUS51 KBUF 300148
SVSBUF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
948 PM EDT SUN MAY 29 2011
NYC013-300155-
/O.CAN.KBUF.SV.W.0025.000000T0000Z-110530T0215Z/
CHAUTAUQUA NY-
948 PM EDT SUN MAY 29 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHAUTAUQUA COUNTY IS
CANCELLED...
THE STORM HAS MOVED OUT OF THE COUNTY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT MONDAY
MORNING FOR WESTERN NEW YORK.
LAT...LON 4200 7889 4246 7905 4253 7899 4247 7896
4244 7889 4246 7878 4249 7871 4248 7870
4249 7865 4200 7864
TIME...MOT...LOC 0145Z 283DEG 32KT 4242 7891 4227 7885
4209 7875 4195 7869
$$
NYC009-300215-
/O.CON.KBUF.SV.W.0025.000000T0000Z-110530T0215Z/
CATTARAUGUS NY-
948 PM EDT SUN MAY 29 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR WESTERN CATTARAUGUS COUNTY...
AT 941 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
JUST EAST OF THE CHAUTAUQUA AND CATTARAUGUS COUNTY LINE...MOVING
EAST AT 40 MPH. THE STRONGEST PORTION OF THE LINE WILL MOVE ACROSS
CATTARAUGUS...AND ELLICOTTVILLE.
SOME LOCATIONS IN THE WARNING INCLUDE...
SALAMANCA...
OTTO...
ELLICOTTVILLE...
ASHFORD HOLLOW...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT MONDAY
MORNING FOR WESTERN NEW YORK.
&&
LAT...LON 4200 7889 4246 7905 4253 7899 4247 7896
4244 7889 4246 7878 4249 7871 4248 7870
4249 7865 4200 7864
TIME...MOT...LOC 0145Z 283DEG 32KT 4242 7891 4227 7885
4209 7875 4195 7869
$$
APFFEL241
WWUS51 KBUF 300208
SVSBUF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
1008 PM EDT SUN MAY 29 2011
NYC009-300219-
/O.EXP.KBUF.SV.W.0025.000000T0000Z-110530T0215Z/
CATTARAUGUS NY-
1008 PM EDT SUN MAY 29 2011
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CATTARAUGUS COUNTY
WILL EXPIRE AT 1015 PM EDT...
AT 1009 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD EXITED THE WARNED AREA...
THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.
LAT...LON 4200 7889 4246 7905 4253 7899 4247 7896
4244 7889 4246 7878 4249 7871 4248 7870
4249 7865 4200 7864
TIME...MOT...LOC 0209Z 283DEG 32KT 4237 7863 4222 7857
4204 7847 4190 7841
$$
APFFELThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 8:03 PM EDT | Special Marine Warning | BUF | 87 min | |
| May 29, 8:34 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 56 min |
| May 29, 8:58 PM EDT | Special Marine Warning | BUF | 62 min | |
| May 29, 9:24 PM EDT | Special Weather Statement | BUF | Erie, Niagara | 51 min |
| May 29, 9:42 PM EDT | Special Marine Warning | BUF | 33 min | |
| May 29, 9:57 PM EDT | Special Marine Warning | BUF | 63 min | |
| May 29, 10:04 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 56 min |
| May 29, 10:18 PM EDT | Special Weather Statement | BUF | Genesee, Livingston, Monroe, Orleans, Wyoming | 57 min |
| May 29, 10:21 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Genesee, Livingston, Wyoming | 34 min |
| May 29, 10:27 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Monroe, Ontario, Orleans | 63 min |
| May 29, 10:30 PM EDT | Severe Thunderstorm Warning | BUF | Allegany | 26 min |
| May 29, 10:41 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Ontario, Wyoming | 50 min |
| May 29, 10:57 PM EDT | Special Marine Warning | BUF | 63 min | |
| May 29, 11:13 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario, Wayne | 62 min |
| May 29, 11:39 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 66 min |
| May 29, 11:44 PM EDT | Special Marine Warning | BUF | 46 min | |
| May 30, 12:31 AM EDT | Special Weather Statement | BUF | Lewis | 74 min |
Nearby
Severe Thunderstorm Warnings in New York, 2011Every severe thunderstorm warning in 2011
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.