Alert archive / New York / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 56, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 26, 2009, 1:51 PM EDT for Genesee County, Wyoming County, New York. It was in force for 39 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
- Jul 26, 2009, 1:51 PM EDT (17:51 UTC)
- Expired
- Jul 26, 2009, 2:30 PM EDT
- In force
- 39 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
Counties Genesee County, NY, Wyoming County, NY
The radar
The Buffalo radar (KBUF), 33 km from the middle of the area, began a volume at 17:51 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, 5.9 hours before the alert went out and 30 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
- 267 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 820 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KBUF 261751
SVRBUF
NYC037-121-261830-
/O.NEW.KBUF.SV.W.0056.090726T1751Z-090726T1830Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
151 PM EDT SUN JUL 26 2009
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
GENESEE COUNTY IN WESTERN NEW YORK
NORTHWESTERN WYOMING COUNTY IN WESTERN NEW YORK
* UNTIL 230 PM EDT
* AT 150 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR BENNINGTON...OR 12 MILES NORTHEAST OF EAST
AURORA...AND MOVING NORTHEAST AT 30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
DARIEN BY 200 PM EDT...
ATTICA BY 205 PM EDT...
BATAVIA BY 225 PM EDT...
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 4275 7841 4284 7849 4287 7848 4288 7846
4293 7846 4312 7805 4292 7794
TIME...MOT...LOC 1752Z 236DEG 24KT 4286 7840
$$
JJR2 follow-up statements
000
WWUS51 KBUF 261814
SVSBUF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
214 PM EDT SUN JUL 26 2009
NYC121-261822-
/O.CAN.KBUF.SV.W.0056.000000T0000Z-090726T1830Z/
WYOMING NY-
214 PM EDT SUN JUL 26 2009
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WYOMING COUNTY IS
CANCELLED...
LAT...LON 4293 7846 4312 7805 4292 7794 4287 7808
4288 7809 4288 7846
TIME...MOT...LOC 1812Z 236DEG 24KT 4293 7825
$$
NYC037-261830-
/O.CON.KBUF.SV.W.0056.000000T0000Z-090726T1830Z/
GENESEE NY-
214 PM EDT SUN JUL 26 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EDT
FOR GENESEE COUNTY...
AT 210 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.
THIS STORM WAS LOCATED NEAR ALEXANDER...OR 7 MILES SOUTHWEST OF
BATAVIA...MOVING NORTHEAST AT 30 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
BATAVIA BY 220 PM EDT...
STAFFORD BY 225 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND CLOUD TO
GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 4293 7846 4312 7805 4292 7794 4287 7808
4288 7809 4288 7846
TIME...MOT...LOC 1812Z 236DEG 24KT 4293 7825
$$
THOMAS000
WWUS51 KBUF 261830
SVSBUF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
230 PM EDT SUN JUL 26 2009
NYC037-261839-
/O.EXP.KBUF.SV.W.0056.000000T0000Z-090726T1830Z/
GENESEE NY-
230 PM EDT SUN JUL 26 2009
...THE SEVERE THUNDERSTORM WARNING FOR GENESEE COUNTY HAS EXPIRED AS
OF 230 PM EDT...
AT 230 PM EDT...NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE
SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS
NO LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.
LAT...LON 4293 7846 4312 7805 4292 7794 4287 7808
4288 7809 4288 7846
TIME...MOT...LOC 1829Z 236DEG 24KT 4299 7812
$$
JJRThe office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 8:00 PM EDT | Severe Thunderstorm Warning | BUF | Monroe, Ontario, Wayne | 41 min |
| Jul 25, 8:07 PM EDT | Special Marine Warning | BUF | 76 min | |
| Jul 25, 9:35 PM EDT | Special Marine Warning | BUF | 55 min | |
| Jul 26, 3:12 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego, Wayne | 50 min |
| Jul 26, 3:45 PM EDT | Special Marine Warning | BUF | 57 min | |
| Jul 26, 4:48 PM EDT | Areal Flood Advisory | BUF | Cayuga, Ontario, Wayne | 117 min |
| Jul 26, 5:02 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Ontario, Wayne | 58 min |
| Jul 26, 5:45 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga | 35 min |
| Jul 26, 6:05 PM EDT | Severe Thunderstorm Warning | BUF | Oswego | 55 min |
| Jul 26, 6:59 PM EDT | Tornado Warning | BUF | Cattaraugus | 46 min |
| Jul 26, 7:24 PM EDT | Special Marine Warning | BUF | 48 min | |
| Jul 26, 7:46 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus | 37 min |
Nearby
Severe Thunderstorm Warnings in New York, 2009Every severe thunderstorm warning in 2009
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.