Alert archive / New York / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 68, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 1, 2011, 6:42 PM EDT for Genesee County, Livingston County, Wyoming County, New York. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 1, 2011, 6:42 PM EDT (22:42 UTC)
- Expired
- Aug 1, 2011, 7:45 PM EDT
- In force
- 63 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Genesee County, NY, Livingston County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 74 km from the middle of the area, began a volume at 22:44 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.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.7 hours before the alert went out and 70 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
- 2422 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 692 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -1.2
The text
As transmitted, in the capitals the NWS used until 2016.
320 WUUS51 KBUF 012242 SVRBUF NYC037-051-121-012345- /O.NEW.KBUF.SV.W.0068.110801T2242Z-110801T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 642 PM EDT MON AUG 1 2011 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN GENESEE COUNTY IN WESTERN NEW YORK LIVINGSTON COUNTY IN WESTERN NEW YORK EASTERN WYOMING COUNTY IN WESTERN NEW YORK * UNTIL 745 PM EDT * AT 640 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 4 MILES SOUTHWEST OF PAVILION...OR 12 MILES SOUTH OF BATAVIA...AND MOVING SOUTHEAST AT 20 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE... PERRY... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. 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. && LAT...LON 4259 7762 4253 7804 4293 7825 4297 7789 TIME...MOT...LOC 2242Z 328DEG 16KT 4283 7809 $$ JJR
2 follow-up statements
882 WWUS51 KBUF 012314 SVSBUF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 714 PM EDT MON AUG 1 2011 NYC037-012324- /O.CAN.KBUF.SV.W.0068.000000T0000Z-110801T2345Z/ GENESEE NY- 714 PM EDT MON AUG 1 2011 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GENESEE COUNTY IS CANCELLED... LAT...LON 4286 7792 4259 7771 4253 7804 4286 7822 TIME...MOT...LOC 2314Z 328DEG 16KT 4271 7799 $$ NYC051-121-012345- /O.CON.KBUF.SV.W.0068.000000T0000Z-110801T2345Z/ LIVINGSTON NY-WYOMING NY- 714 PM EDT MON AUG 1 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT FOR EASTERN WYOMING AND WEST CENTRAL LIVINGSTON COUNTIES... AT 712 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR PERRY...OR 11 MILES SOUTHWEST OF GENESEO...MOVING SOUTHEAST AT 20 MPH. SOME LOCATIONS IN THE WARNING INCLUDE... NUNDA... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. 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. && LAT...LON 4286 7792 4259 7771 4253 7804 4286 7822 TIME...MOT...LOC 2314Z 328DEG 16KT 4271 7799 $$ JJR
300 WWUS51 KBUF 012339 SVSBUF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 739 PM EDT MON AUG 1 2011 NYC051-121-012350- /O.EXP.KBUF.SV.W.0068.000000T0000Z-110801T2345Z/ LIVINGSTON NY-WYOMING NY- 739 PM EDT MON AUG 1 2011 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WYOMING AND WEST CENTRAL LIVINGSTON COUNTIES WILL EXPIRE AT 745 PM EDT... AT 740 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. LAT...LON 4286 7792 4259 7771 4253 7804 4286 7822 TIME...MOT...LOC 2340Z 328DEG 16KT 4261 7791 $$ JJR
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 2:25 AM EDT | Special Marine Warning | BUF | 80 min | |
| Aug 1, 2:50 AM EDT | Special Weather Statement | BUF | Orleans | 70 min |
| Aug 1, 3:26 AM EDT | Severe Thunderstorm Warning | BUF | Niagara, Orleans | 49 min |
| Aug 1, 3:56 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Niagara, Orleans | 64 min |
| Aug 1, 4:25 AM EDT | Special Marine Warning | BUF | 25 min | |
| Aug 1, 4:37 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Wyoming | 53 min |
| Aug 1, 4:54 AM EDT | Severe Thunderstorm Warning | BUF | Erie, Genesee, Monroe, Niagara, Orleans | 66 min |
| Aug 1, 5:16 AM EDT | Areal Flood Advisory | BUF | Genesee, Orleans | 3 hr |
| Aug 1, 5:45 AM EDT | Special Weather Statement | BUF | Wyoming | 45 min |
| Aug 1, 6:06 AM EDT | Special Weather Statement | BUF | Allegany | 54 min |
| Aug 1, 6:21 AM EDT | Severe Thunderstorm Warning | BUF | Allegany, Livingston, Wyoming | 36 min |
| Aug 1, 6:47 AM EDT | Special Weather Statement | BUF | Wyoming | 43 min |
| Aug 1, 2:35 PM EDT | Severe Thunderstorm Warning | BUF | Livingston, Ontario | 45 min |
| Aug 1, 3:07 PM EDT | Special Weather Statement | BUF | Niagara | 53 min |
| Aug 1, 3:57 PM EDT | Areal Flood Advisory | BUF | Ontario | 21 min |
| Aug 1, 4:12 PM EDT | Flash Flood Warning | BUF | Livingston, Ontario | 93 min |
| Aug 1, 6:06 PM EDT | Severe Thunderstorm Warning | BUF | Ontario | 39 min |
| Aug 1, 6:12 PM EDT | Special Weather Statement | BUF | Genesee, Livingston | 63 min |
| Aug 1, 6:46 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 59 min |
| Aug 1, 7:09 PM EDT | Special Weather Statement | BUF | Wyoming | 36 min |
| Aug 1, 7:44 PM EDT | Special Weather Statement | BUF | Wyoming | 46 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.