Alert archive / New York / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 21, NWS Buffalo, NY

July 10, 2001Monroe County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Jul 10, 2001, 10:11 PM EDT for Monroe County, New York. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 10, 2001, 10:11 PM EDT (02:11 UTC)
Expired
Jul 10, 2001, 11:00 PM EDT
In force
49 min
Issued by
NWS Buffalo, NY
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Monroe County, NY

The radar

The Buffalo radar (KBUF), 84 km from the middle of the area, began a volume at 02:14 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, 2.2 hours before the alert went out and 82 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 2001-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 686 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2001-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 square meters per square second.1939587897Sfc1 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
686 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1415 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 110213
SVRBUF

NYC055-110400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1011 PM EDT TUE JUL 10 2001

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONROE COUNTY IN WESTERN NEW YORK
  THIS INCLUDES THE GREATER ROCHESTER AREA 

* UNTIL 1100 PM EDT

* AT 1010 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR GREECE...MOVING EAST SOUTHEAST AT 35 MPH. 

* THE STORM WILL BE NEAR THE CITY OF ROCHESTER BY 1025 PM
  AND FAIRPORT BY 1040 PM EDT.



LAT...LON 4333 7804 4320 7786 4299 7753 4331 7741

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 10:40 PM EDTSevere Thunderstorm WarningBUFOntario65 min
Jul 11, 12:31 AM EDTSevere Thunderstorm WarningBUFLivingston, Ontario59 min

Nearby

Severe Thunderstorm Warnings in New York, 2001Every severe thunderstorm warning in 2001

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.