Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 15, NWS Buffalo, NY

April 12, 2008Allegany County, Cattaraugus County, Wyoming County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Apr 12, 2008, 1:15 AM EDT for Allegany County, Cattaraugus County, Wyoming County, New York. It was in force for 30 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
Apr 12, 2008, 1:15 AM EDT (05:15 UTC)
Expired
Apr 12, 2008, 1:45 AM EDT
In force
30 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Allegany County, NY, Cattaraugus County, NY, Wyoming County, NY

The radar

The Buffalo radar (KBUF), 56 km from the middle of the area, began a volume at 05:17 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

TimeReportWhereRemark
Apr 12, 1:20 AM EDTTSTM WND DMGFreedom, NY35 FOOT CAMPER BLOWN 500 TO 1000 FEET INTO A CORN FIELD

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, 5.3 hours before the alert went out and 52 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-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 00:00Z on 2008-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 00:00Z on 2008-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 296 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
81 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1292 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
296 m²/s²
0-3 km storm-relative helicity
192 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KBUF 120515
SVRBUF
NYC003-009-121-120545-
/O.NEW.KBUF.SV.W.0015.080412T0515Z-080412T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
115 AM EDT SAT APR 12 2008

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ALLEGANY COUNTY IN WESTERN NEW YORK
  NORTHEASTERN CATTARAUGUS COUNTY IN WESTERN NEW YORK
  WYOMING COUNTY IN WESTERN NEW YORK

* UNTIL 145 AM EDT

* AT 113 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES SOUTH OF SARDINIA...OR
  22 MILES SOUTH OF EAST AURORA...AND MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BLISS BY 125 AM EDT...
  PORTAGEVILLE BY 130 AM EDT...

LAT...LON 4249 7803 4238 7847 4249 7856 4254 7849
      4254 7847 4254 7846 4256 7846 4280 7815
TIME...MOT...LOC 0515Z 243DEG 57KT 4251 7840

$$

RSH
2 follow-up statements
000 
WWUS51 KBUF 120530
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
129 AM EDT SAT APR 12 2008

NYC009-120539-
/O.CAN.KBUF.SV.W.0015.000000T0000Z-080412T0545Z/
CATTARAUGUS NY-
129 AM EDT SAT APR 12 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CATTARAUGUS
COUNTY IS CANCELLED...

LAT...LON 4280 7815 4249 7803 4249 7831 4252 7831
      4253 7832 4253 7836 4261 7838
TIME...MOT...LOC 0529Z 243DEG 57KT 4258 7819

$$

NYC003-121-120545-
/O.CON.KBUF.SV.W.0015.000000T0000Z-080412T0545Z/
ALLEGANY NY-WYOMING NY-
129 AM EDT SAT APR 12 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM EDT
FOR WYOMING AND EXTREME NORTHWESTERN ALLEGANY COUNTIES...

AT 125 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR EAGLE...OR 20 MILES SOUTHEAST OF EAST AURORA...MOVING
NORTHEAST AT 55 MPH.

THIS STORM HAS A HISTORY OF PRODUCING PENNY SIZED HAIL ALONG WITH 5 
MINUTE DOWNPOURS.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  GAINESVILLE BY 135 AM EDT...

LAT...LON 4280 7815 4249 7803 4249 7831 4252 7831
      4253 7832 4253 7836 4261 7838
TIME...MOT...LOC 0529Z 243DEG 57KT 4258 7819

$$

RSH
000 
WWUS51 KBUF 120546
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
146 AM EDT SAT APR 12 2008

NYC003-121-120556-
/O.EXP.KBUF.SV.W.0015.000000T0000Z-080412T0545Z/
ALLEGANY NY-WYOMING NY-
146 AM EDT SAT APR 12 2008

...THE SEVERE THUNDERSTORM WARNING FOR WYOMING AND EXTREME
NORTHWESTERN ALLEGANY COUNTIES HAS EXPIRED...

AT 146 AM 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 4280 7815 4249 7803 4249 7831 4252 7831
      4253 7832 4253 7836 4261 7838
TIME...MOT...LOC 0530Z 243DEG 57KT 4258 7817

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 12:51 AM EDTSevere Thunderstorm WarningBUFCattaraugus24 min
Apr 12, 1:34 AM EDTSevere Thunderstorm WarningBUFLivingston, Monroe, Ontario26 min
Apr 12, 1:43 AM EDTSevere Thunderstorm WarningBUFLivingston, Wyoming32 min
Apr 12, 1:56 AM EDTSevere Thunderstorm WarningBUFMonroe, Ontario, Wayne19 min
Apr 12, 2:08 AM EDTSpecial Marine WarningBUF37 min
Apr 12, 2:37 AM EDTSevere Thunderstorm WarningBUFCayuga, Jefferson, Oswego23 min
Apr 12, 3:11 AM EDTSevere Thunderstorm WarningBUFLewis, Oswego34 min

Nearby

Severe Thunderstorm Warnings in New York, 2008Every severe thunderstorm warning in 2008

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.