Alert archive / New York / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 45, NWS Buffalo, NY

August 16, 2003Chautauqua County, New York

NWS Buffalo, NY issued this severe thunderstorm warning at Aug 16, 2003, 2:18 PM EDT for Chautauqua County, New York. It was in force for 57 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: Aug 16, 2003, 2:18 PM EDT (18:18 UTC)
Expired: Aug 16, 2003, 3:15 PM EDT
In force: 57 min
Issued by: NWS Buffalo, NY
Area: Counties, with a storm outline in the text

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 103 km from the middle of the area, began a volume at 18:21 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 16, 1:25 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.3 hours before the alert went out and 103 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1388 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KBUF 161818
SVRBUF
NYC013-161915-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
218 PM EDT SAT AUG 16 2003

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHAUTAUQUA COUNTY IN WESTERN NEW YORK

* UNTIL 315 PM EDT

* AT 216 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 10 MILES WEST OF WESTFIELD...OR ABOUT 16 MILES
  NORTHEAST OF NORTHWEST HARBORCREEK...MOVING SOUTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WESTFIELD AT 230 PM EDT
  MAYVILLE AT 240 PM EDT
  CHAUTAUQUA INSTITUTE AT 245 PM EDT
  LAKEWOOD AT 305 PM EDT
  JAMESTOWN WEST AT 310 PM EDT
  FALCONER AND JAMESTOWN AND FREWSBURG AT 315 PM EDT

THIS IS A DANGEROUS STORM WITH DAMAGING WINDS. STAY INDOORS AWAY FROM
WINDOWS. HEAVY RAIN MAY CAUSE FLOODING.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN BUFFALO.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
SATURDAY EVENING FOR WESTERN NEW YORK.

LAT...LON 4241 7982 4225 7992 4193 7909 4219 7905

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 9:06 AM EDT	Special Marine Warning	BUF		69 min
Aug 16, 9:30 AM EDT	Special Marine Warning	BUF		90 min
Aug 16, 9:37 AM EDT	Severe Thunderstorm Warning	BUF	Niagara	53 min
Aug 16, 11:15 AM EDT	Special Marine Warning	BUF		60 min
Aug 16, 11:44 AM EDT	Severe Thunderstorm Warning	BUF	Chautauqua, Erie	61 min
Aug 16, 12:26 PM EDT	Severe Thunderstorm Warning	BUF	Wyoming	64 min
Aug 16, 1:17 PM EDT	Flash Flood Warning	BUF	Wyoming	118 min
Aug 16, 1:25 PM EDT	Special Marine Warning	BUF		95 min
Aug 16, 1:39 PM EDT	Severe Thunderstorm Warning	BUF	Ontario	51 min
Aug 16, 2:16 PM EDT	Severe Thunderstorm Warning	BUF	Allegany	29 min

Nearby

Severe Thunderstorm Warnings in New York, 2003 Every severe thunderstorm warning in 2003

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.