Alert archive / New York / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 65, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Aug 1, 2011, 6:21 AM EDT for Allegany County, Livingston County, Wyoming County, New York. It was in force for 36 min. 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
- Aug 1, 2011, 6:21 AM EDT (10:21 UTC)
- Expired
- Aug 1, 2011, 6:57 AM EDT
- In force
- 36 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Allegany County, NY, Livingston County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 89 km from the middle of the area, began a volume at 10:25 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 |
|---|---|---|---|
| Aug 1, 6:34 AM EDT | TSTM WND DMG | Fillmore, NY | WIRES DOWM |
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, 10.4 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.
- Mixed-layer CAPE
- 1654 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1121 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 174 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
558
WUUS51 KBUF 011021
SVRBUF
NYC003-051-121-011115-
/O.NEW.KBUF.SV.W.0065.110801T1021Z-110801T1115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
621 AM EDT MON AUG 1 2011
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ALLEGANY COUNTY IN WESTERN NEW YORK
SOUTHERN LIVINGSTON COUNTY IN WESTERN NEW YORK
SOUTHEASTERN WYOMING COUNTY IN WESTERN NEW YORK
* UNTIL 715 AM EDT
* AT 615 AM 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 NEAR
BLISS...OR 25 MILES SOUTHEAST OF EAST AURORA...AND MOVING EAST AT
25 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE...
BLISS...
CENTERVILLE...
PORTAGEVILLE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4200 7831 4252 7831 4253 7833 4264 7829
4265 7760 4257 7762 4257 7765 4253 7767
4253 7771 4200 7774 4199 7807
TIME...MOT...LOC 1019Z 272DEG 23KT 4254 7821
$$
THOMAS2 follow-up statements
944
WWUS51 KBUF 011049
SVSBUF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
649 AM EDT MON AUG 1 2011
NYC051-121-011059-
/O.CAN.KBUF.SV.W.0065.000000T0000Z-110801T1115Z/
LIVINGSTON NY-WYOMING NY-
649 AM EDT MON AUG 1 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WYOMING AND
SOUTHERN LIVINGSTON COUNTIES IS CANCELLED...
LAT...LON 4238 7831 4252 7831 4252 7784 4248 7784
4247 7771 4223 7773
TIME...MOT...LOC 1049Z 296DEG 20KT 4245 7806
$$
NYC003-011115-
/O.CON.KBUF.SV.W.0065.000000T0000Z-110801T1115Z/
ALLEGANY NY-
649 AM EDT MON AUG 1 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 AM EDT
FOR NORTHERN ALLEGANY COUNTY...
AT 648 AM 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 FILLMORE...OR 20 MILES WEST OF ARKPORT...MOVING
SOUTHEAST AT 25 MPH.
SOME LOCATIONS IN THE WARNING INCLUDE...
BIRDSALL...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4238 7831 4252 7831 4252 7784 4248 7784
4247 7771 4223 7773
TIME...MOT...LOC 1049Z 296DEG 20KT 4245 7806
$$
THOMAS810
WWUS51 KBUF 011057
SVSBUF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
657 AM EDT MON AUG 1 2011
NYC003-011106-
/O.CAN.KBUF.SV.W.0065.000000T0000Z-110801T1115Z/
ALLEGANY NY-
657 AM EDT MON AUG 1 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ALLEGANY COUNTY IS
CANCELLED...
AT 656 AM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN CANCELLED.
LAT...LON 4238 7831 4252 7831 4252 7784 4248 7784
4247 7771 4223 7773
TIME...MOT...LOC 1056Z 296DEG 20KT 4243 7801
$$
THOMASThe 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, 6:47 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, 6:42 PM EDT | Severe Thunderstorm Warning | BUF | Genesee, Livingston, Wyoming | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.