Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 3, NWS Buffalo, NY

May 9, 2014Jefferson County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at May 9, 2014, 8:09 PM EDT for Jefferson County, Oswego County, New York. It was in force for 51 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
May 9, 2014, 8:09 PM EDT (00:09 UTC)
Expired
May 9, 2014, 9:00 PM EDT
In force
51 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Jefferson County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 42 km from the middle of the area, began a volume at 00:09 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 00:00Z, 0.2 hours before the alert went out and 225 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 2014-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 2014-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 square meters per square second.19395878Sfc1 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
5 J/kg
Mixed-layer CIN
-147 J/kg
Mixed-layer LCL
1863 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
191 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.

083 
WUUS51 KBUF 100009
SVRBUF
NYC045-075-100100-
/O.NEW.KBUF.SV.W.0003.140510T0009Z-140510T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
809 PM EDT FRI MAY 9 2014

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN JEFFERSON COUNTY IN CENTRAL NEW YORK
  OSWEGO COUNTY IN CENTRAL NEW YORK

* UNTIL 900 PM EDT

* AT 803 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 10 MILES NORTHWEST OF STONY POINT TO 6 MILES NORTHEAST OF     
  FULTON...AND MOVING EAST AT 45 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE...
  SOUTHWICK BEACH...
  HENDERSON HARBOR...
  CLAYTON...
  REDFIELD...
  WATERTOWN...
  SANDY CREEK...
  LACONA...
  PULASKI...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR WELL AHEAD OF ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4350 7575 4327 7587 4329 7642 4352 7645
      4354 7624 4358 7621 4378 7623 4391 7636
      4388 7645 4390 7645 4393 7641 4388 7629
      4390 7614 4398 7622 4396 7630 4411 7638
      4423 7613 4424 7615 4436 7600 4435 7594
TIME...MOT...LOC 0009Z 260DEG 39KT 4394 7636 4338 7622

$$

HITCHCOCK
2 follow-up statements
169 
WWUS51 KBUF 100038
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
838 PM EDT FRI MAY 9 2014

NYC045-075-100100-
/O.CON.KBUF.SV.W.0003.000000T0000Z-140510T0100Z/
JEFFERSON NY-OSWEGO NY-
838 PM EDT FRI MAY 9 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR OSWEGO AND WESTERN JEFFERSON COUNTIES...

AT 832 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM CLAYTON TO LORRAINE TO AMBOY...MOVING EAST AT 45 MPH.

SOME LOCATIONS IN THE WARNING INCLUDE...
  REDFIELD...
  WILLIAMSTOWN...
  WORTH...
  LAFARGEVILLE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WIND DAMAGE WITH THESE STORMS WILL OCCUR ON THE LEADING EDGE OF ANY 
RAIN OR LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE 
TAKING COVER. SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND 
STAY AWAY FROM WINDOWS.

&&

LAT...LON 4350 7575 4327 7587 4329 7642 4352 7645
      4354 7624 4358 7621 4378 7623 4391 7636
      4388 7645 4390 7645 4393 7641 4388 7629
      4390 7614 4398 7622 4396 7630 4411 7638
      4423 7613 4424 7615 4436 7600 4435 7594
TIME...MOT...LOC 0038Z 260DEG 39KT 4421 7600 4380 7586
          4334 7587

$$

HITCHCOCK
497 
WWUS51 KBUF 100049
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
849 PM EDT FRI MAY 9 2014

NYC045-075-100059-
/O.CAN.KBUF.SV.W.0003.000000T0000Z-140510T0100Z/
JEFFERSON NY-OSWEGO NY-
849 PM EDT FRI MAY 9 2014

...THE SEVERE THUNDERSTORM WARNING FOR OSWEGO AND WESTERN JEFFERSON
COUNTIES IS CANCELLED...

AT 849 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 CANCELLED.

LAT...LON 4350 7575 4327 7587 4329 7642 4352 7645
      4354 7624 4358 7621 4378 7623 4391 7636
      4388 7645 4390 7645 4393 7641 4388 7629
      4390 7614 4398 7622 4396 7630 4411 7638
      4423 7613 4424 7615 4436 7600 4435 7594
TIME...MOT...LOC 0049Z 260DEG 39KT 4423 7583 4381 7570
          4335 7571

$$

HITCHCOCK

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 8:04 PM EDTSpecial Weather StatementBUFJefferson56 min
May 9, 8:36 PM EDTSpecial Weather StatementBUFLewis54 min
May 9, 8:41 PM EDTSpecial Marine WarningBUF2 hr
May 10, 12:28 PM EDTSmall Craft AdvisoryBUF7 hr

Nearby

Severe Thunderstorm Warnings in New York, 2014Every severe thunderstorm warning in 2014

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.