Alert archive / New York / Special Weather Statements in 2012

Special Weather Statement, NWS Buffalo, NY

October 18, 2012Chautauqua County, New York

NWS Buffalo, NY issued this special weather statement at Oct 18, 2012, 3:40 PM EDT for Chautauqua County, New York. It was in force for 50 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
Oct 18, 2012, 3:40 PM EDT (19:40 UTC)
Expired
Oct 18, 2012, 4:30 PM EDT
In force
50 min
Issued by
NWS Buffalo, NY

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 91 km from the middle of the area, began a volume at 19:41 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
Oct 18, 3:40 PM EDTMARINE TSTM WIND 46Dunkirk, NY

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 12:00Z, 7.7 hours before the alert went out and 91 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 12:00Z on 2012-10-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2012-10-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1898 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
13 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.

839 
WWUS81 KBUF 181940
SPSBUF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
340 PM EDT THU OCT 18 2012

NYZ019-182030-
CHAUTAUQUA NY-
340 PM EDT THU OCT 18 2012

...LINE OF GUSTY SHOWERS MOVING INTO CHAUTAUQUA COUNTY...

* AT 335 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SHOWERS CAPABLE OF PRODUCING GUSTY WINDS UP TO 40 MPH.   
  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM WESTFIELD TO 
  7 MILES SOUTHEAST OF CLYMER...AND MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS AFFECTED BY THE STRONG THUNDERSTORMS MAY INCLUDE...
  DUNKIRK AND JAMESTOWN...
  FORESTVILLE...
  CASSADAGA...
  STOCKTON...
  FREWSBURG...

THESE SHOWERS CONTAIN LITTLE OR NO LIGHTNING. DO NOT WAIT FOR THE 
SOUND OF THUNDER TO SEEK SHELTER.

LAT...LON 4200 7968 4229 7974 4242 7946 4250 7935
      4257 7914 4254 7907 4199 7906

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 3:13 PM EDTSpecial Marine WarningBUF62 min
Oct 18, 4:24 PM EDTSpecial Weather StatementBUFCattaraugus51 min
Oct 18, 4:28 PM EDTSpecial Weather StatementBUFGenesee, Niagara, Orleans, Wyoming62 min
Oct 18, 4:46 PM EDTSpecial Marine WarningBUF44 min

Nearby

Special Weather Statements in New York, 2012Every special weather statement in 2012

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.