Alert archive / New York / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 52, NWS Buffalo, NY

August 1, 2015Jefferson County, Lewis County, Oswego County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 1, 2015, 2:56 AM EDT for Jefferson County, Lewis County, Oswego County, New York. It was in force for 64 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, 2015, 2:56 AM EDT (06:56 UTC)
Expired
Aug 1, 2015, 4:00 AM EDT
In force
64 min
Issued by
NWS Buffalo, NY
Area
Storm-based polygon

Counties Jefferson County, NY, Lewis County, NY, Oswego County, NY

The radar

The Ft Drum radar (KTYX), 1 km from the middle of the area, began a volume at 07:00 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
Aug 1, 3:22 AM EDTTSTM WND DMG5 Nw Port Leyden, NYWIRES DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 6.9 hours before the alert went out and 191 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, Albany, NY at 00:00Z on 2015-08-01Temperature 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, Albany, NY at 00:00Z on 2015-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2155 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
95 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.

858 
WUUS51 KBUF 010656
SVRBUF
NYC045-049-075-010800-
/O.NEW.KBUF.SV.W.0052.150801T0656Z-150801T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
256 AM EDT SAT AUG 1 2015

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LEWIS COUNTY IN CENTRAL NEW YORK...
  NORTHEASTERN OSWEGO COUNTY IN CENTRAL NEW YORK...
  SOUTHEASTERN JEFFERSON COUNTY IN CENTRAL NEW YORK...

* UNTIL 400 AM EDT

* AT 256 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS 
  STORM WAS LOCATED 9 MILES NORTHWEST OF REDFIELD...MOVING NORTHEAST 
  AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CARTHAGE...LOWVILLE...WEST CARTHAGE...REDFIELD...HERRINGS...
  HIGHMARKET...BARNES CORNERS AND WHETSTONE GULF STATE PARK.

THIS INCLUDES INTERSTATE 81 NEAR EXIT 38.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4347 7596 4367 7608 4370 7608 4421 7543
      4410 7517 4363 7511
TIME...MOT...LOC 0656Z 242DEG 40KT 4364 7595 

$$

RSH
2 follow-up statements
885 
WWUS51 KBUF 010725
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
325 AM EDT SAT AUG 1 2015

NYC045-075-010735-
/O.CAN.KBUF.SV.W.0052.000000T0000Z-150801T0800Z/
OSWEGO NY-JEFFERSON NY-
325 AM EDT SAT AUG 1 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OSWEGO AND
SOUTHEASTERN JEFFERSON COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF 
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED FOR THIS 
PARTICULAR AREA.

LAT...LON 4360 7567 4368 7576 4385 7573 4413 7527
      4410 7517 4366 7511
TIME...MOT...LOC 0725Z 244DEG 33KT 4373 7560 

$$

NYC049-010800-
/O.CON.KBUF.SV.W.0052.000000T0000Z-150801T0800Z/
LEWIS NY-
325 AM EDT SAT AUG 1 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM EDT
FOR LEWIS COUNTY...

AT 325 AM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR WHETSTONE GULF STATE PARK...OR 21 MILES NORTHWEST OF
BOONVILLE...MOVING NORTHEAST AT 40 MPH.

LOCATIONS IMPACTED INCLUDE...
LOWVILLE...WHETSTONE GULF STATE PARK...DENMARK...NEW BREMEN...
WATSON...MARTINSBURG...GREIG AND COPENHAGEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4360 7567 4368 7576 4385 7573 4413 7527
      4410 7517 4366 7511
TIME...MOT...LOC 0725Z 244DEG 33KT 4373 7560 

$$

RSH
454 
WWUS51 KBUF 010756
SVSBUF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BUFFALO NY
356 AM EDT SAT AUG 1 2015

NYC049-010806-
/O.EXP.KBUF.SV.W.0052.000000T0000Z-150801T0800Z/
LEWIS NY-
356 AM EDT SAT AUG 1 2015

...THE SEVERE THUNDERSTORM WARNING FOR LEWIS COUNTY WILL EXPIRE AT
400 AM EDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO
EXPIRE.

LAT...LON 4360 7567 4368 7576 4385 7573 4413 7527
      4410 7517 4366 7511
TIME...MOT...LOC 0754Z 242DEG 40KT 4373 7560 

$$

RSH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 8:57 PM EDTSpecial Marine WarningBUF93 min
Aug 1, 4:01 PM EDTSpecial Weather StatementBUFGenesee44 min
Aug 1, 6:29 PM EDTSpecial Marine WarningBUF61 min
Aug 1, 6:55 PM EDTSpecial Marine WarningBUF65 min
Aug 1, 7:06 PM EDTSpecial Weather StatementBUFOrleans54 min
Aug 1, 7:13 PM EDTSpecial Weather StatementBUFWyoming47 min
Aug 1, 7:29 PM EDTSpecial Marine WarningBUF61 min
Aug 1, 7:52 PM EDTSpecial Weather StatementBUFJefferson38 min

Nearby

Severe Thunderstorm Warnings in New York, 2015Every severe thunderstorm warning in 2015

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.