Alert archive / New York / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 11, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at Jul 3, 1999, 7:11 PM EDT for Ontario County, Wayne County, New York. It was in force for 49 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 3, 1999, 7:11 PM EDT (23:11 UTC)
- Expired
- Jul 3, 1999, 8:00 PM EDT
- In force
- 49 min
- Issued by
- NWS Buffalo, NY
- Area
- Whole counties
Counties Ontario County, NY, Wayne County, NY
The radar
The Binghamton radar (KBGM), 127 km from the middle of the area, began a volume at 23:11 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 3, 7:37 PM EDT | Thunderstorm Wind | Gorham, NY | |
| Jul 3, 7:45 PM EDT | Thunderstorm Wind | Wolcott, NY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.2 hours before the alert went out and 127 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1884 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KBUF 032318 RRA SVRBUF NYC069-117-040000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BUFFALO NY 711 PM EDT SAT JUL 3 1999 THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WAYNE COUNTY AND ONTARIO COUNTY IN NEW YORK * UNTIL 8 PM EDT * AT 710 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM ALONG A LINE EXTENDING FROM 10 MILES SOUTHWEST OF VICTOR TO 50 MILES SOUTH OF VICTOR...OR ALONG A LINE EXTENDING FROM 14 MILES NORTHEAST OF GENESEO TO 6 MILES SOUTHEAST OF HORNELL...MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORMS WILL BE AFFECTING HONEYE LAKE AND CANANDAIGUA IN ONTARIO COUNTY AND SODUS AND NEWARK IN WAYNE COUNTY. IF THREATENING WEATHER APPROACHES GO TO A SAFE PLACE IMMEDIATELY. IN HOMES A BASEMENT OR INTERIOR ROOM IS THE SAFEST LOCATION. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY vWILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN BUFFALO.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Buffalo, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 3, 3:30 PM EDT, 3 hours 41 minutes earlier.
Area forecast discussion, Jul 3, 3:30 PM EDT, 3 hours 41 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BUFFALO NY 330 PM EDT SAT JUL 3 1999 HEAT AND HUMIDITY ARE JUST ON THE WESTERN DOORSTEP WITH TEMPS IN THE MIDDLE TO UPPER 80S AND DEWPOINTS IN THE 70S WEST OF THE GENESEE VALLEY. THIS WILL SPREAD EAST AND NORTH THROUGH THE NIGHT OFFERING A VERY MUGGY NIGHT FOR ALL. WITH ALL THE AVAILABLE ENERGY IN THIS HOT AND HUMID AIRMASS... CONVECTION IS FAIRLY EASY TO COME BY. AMIDST THE REMNANTS OF AN MCS OVER LOWER MICHIGAN ARE NUMEROUS DISCRETE CELLS OF CONVECTION AND A FEW CLUSTERS TRYING TO GATHER TO A NEW MCS. THIS DOESN/T SEEM TO BE HAPPENING AS MID LEVEL WARMING IS OVERTAKING FROM THE SOUTHWEST WITH THE BUILDING OF A STRONG AND HOT RIDGE OVER THE OHIO VALLEY TO THE EASTERN SEABOARD. ALONG THE NORTHERN AND EASTERN FLANK OF THE BUILDING RIDGE...OVER A GOOD PORTION OF THIS FORECAST AREA...A SERIES OF VORT CENTERS WILL BE MOVING ALONG FROM RIDGE TO TROUGH ON WEAKLY NORTHWESTERLY VECTOR AND WILL PRODUCE A FEW ROUNDS OF PRECIP...TONIGHT AND A STRONGER EVENT SUNDAY NIGHT. WENT HIGHER THAN GUIDANCE POPS TONIGHT ACROSS MOST OF THE FORECAST AREA THEN CHANCE POPS EAST OF LAKE ONTARIO SUNDAY NIGHT. AS THE RIDGE BUILDS FARTHER EAST THE WEATHER PORTIONS WILL BE STRONGLY CAPPED BUT EAST OF LAKE ONTARIO WILL BE ON THE FRINGE. WENT CLOSE TO OR A LITTLE HIGHER THAN FWC AND FAN TEMPS. THIS WILL BE A HOT HOLIDAY WEEKEND. .BUF...NONE. HIBBERT
In the hours before
Special weather statement, Jul 3, 3:28 PM EDT, 3 hours 43 minutes before
NYZ001>008-010>014-019>021-040900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 328 PM EDT SAT JUL 3 1999 ...HOT AND HUMID WEATHER COULD POSE A HEALTH THREAT ON SUNDAY... TEMPERATURES ARE FORECAST TO SOAR TO AROUND 90 DEGREES AGAIN ON JULY 4TH. IN ADDITION...THE AIR WILL BE VERY HUMID. THIS COMBINATION WILL PRODUCE AN APPARENT TEMPERATURE NEAR 100 DEGREES FOR MUCH OF THE REGION. THE BODYS ABILITY TO COOL ITSELF IS RESTRICTED WHEN THE HUMIDITY IS HIGH. PROLONGED EXPOSURE TO THE SUN COULD RESULT IN HEAT CRAMPS OR HEAT EXHAUSTION. IF YOU WILL BE OUTSIDE FOR ANY LENGTH OF TIME REMEMBER TO DRINK PLENTY OF LIQUIDS TO AVOID DEHYDRATION. CHECK ON THE ELDERLY AND THOSE THAT ARE HOMEBOUND AND REMEMBER TO CHECK ON YOUR PETS AS WELL. DO NOT LEAVE CHILDREN OR PETS INSIDE YOUR VEHICLE UNATTENDED FOR ANY LENGTH OF TIME. NIZIOL
Special weather statement, Jul 3, 3:28 PM EDT, 3 hours 43 minutes before
NYZ001>008-010>014-019>021-040900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 328 PM EDT SAT JUL 3 1999 ...HOT AND HUMID WEATHER COULD POSE A HEALTH THREAT ON SUNDAY... TEMPERATURES ARE FORECAST TO SOAR TO AROUND 90 DEGREES AGAIN ON JULY 4TH. IN ADDITION...THE AIR WILL BE VERY HUMID. THIS COMBINATION WILL PRODUCE AN APPARENT TEMPERATURE NEAR 100 DEGREES FOR MUCH OF THE REGION. THE BODYS ABILITY TO COOL ITSELF IS RESTRICTED WHEN THE HUMIDITY IS HIGH. PROLONGED EXPOSURE TO THE SUN COULD RESULT IN HEAT CRAMPS OR HEAT EXHAUSTION. IF YOU WILL BE OUTSIDE FOR ANY LENGTH OF TIME REMEMBER TO DRINK PLENTY OF LIQUIDS TO AVOID DEHYDRATION. CHECK ON THE ELDERLY AND THOSE THAT ARE HOMEBOUND AND REMEMBER TO CHECK ON YOUR PETS AS WELL. DO NOT LEAVE CHILDREN OR PETS INSIDE YOUR VEHICLE UNATTENDED FOR ANY LENGTH OF TIME. NIZIOL
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 5:53 PM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 52 min |
| Jul 3, 6:01 PM EDT | Severe Thunderstorm Warning | BUF | Cattaraugus, Erie | 29 min |
| Jul 3, 6:08 PM EDT | Severe Thunderstorm Warning | BUF | Niagara, Orleans | 67 min |
| Jul 3, 6:14 PM EDT | Severe Thunderstorm Warning | BUF | Wyoming | 46 min |
| Jul 3, 6:33 PM EDT | Severe Thunderstorm Warning | BUF | Monroe | 57 min |
| Jul 3, 6:39 PM EDT | Severe Thunderstorm Warning | BUF | Allegany, Livingston | 66 min |
| Jul 3, 7:38 PM EDT | Severe Thunderstorm Warning | BUF | Cayuga, Oswego | 52 min |
Nearby
Severe Thunderstorm Warnings in New York, 1999Every severe thunderstorm warning in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.