Alert archive / New York / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 5, NWS Buffalo, NY
NWS Buffalo, NY issued this severe thunderstorm warning at May 8, 2009, 10:22 PM EDT for Jefferson County, New York. It was in force for 38 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 8, 2009, 10:22 PM EDT (02:22 UTC)
- Expired
- May 8, 2009, 11:00 PM EDT
- In force
- 38 min
- Issued by
- NWS Buffalo, NY
- Area
- Storm-based polygon
County Jefferson County, NY
The radar
The Ft Drum radar (KTYX), 40 km from the middle of the area, began a volume at 02:21 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 nearest sounding before it
Albany, NY (KALY), launched 00:00Z, 2.4 hours before the alert went out and 232 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
- 265 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1764 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KBUF 090222
SVRBUF
NYC045-090300-
/O.NEW.KBUF.SV.W.0005.090509T0222Z-090509T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BUFFALO NY
1022 PM EDT FRI MAY 8 2009
THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL JEFFERSON COUNTY IN CENTRAL NEW YORK
* UNTIL 1100 PM EDT
* AT 1018 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS
STORM WAS LOCATED 10 MILES WEST OF WATERTOWN...AND MOVING EAST AT
30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
DEXTER BY 1030 PM EDT...
WATERTOWN BY 1040 PM EDT...
CALCIUM BY 1045 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IN ADDITION TO LARGE HAIL...FREQUENT CLOUD TO GROUND LIGHTNING IS
OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS
ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
&&
LAT...LON 4394 7573 4393 7615 4394 7615 4399 7608
4395 7616 4396 7617 4401 7618 4401 7616
4403 7617 4404 7615 4402 7614 4404 7613
4414 7574
TIME...MOT...LOC 0221Z 261DEG 24KT 4399 7608
$$
HITCHCOCK3 follow-up statements
000 WWUS51 KBUF 090231 SVSBUF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1031 PM EDT FRI MAY 8 2009 NYC045-090300- /O.CON.KBUF.SV.W.0005.000000T0000Z-090509T0300Z/ JEFFERSON NY- 1031 PM EDT FRI MAY 8 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT FOR CENTRAL JEFFERSON COUNTY... AT 1027 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BROWNVILLE...OR 6 MILES WEST OF WATERTOWN...MOVING EAST AT 30 MPH. AT 1025 PM EDT...THE WATERTOWN AIRPORT REPORTED A WIND GUST TO 50 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... DEXTER BY 1030 PM EDT... WATERTOWN BY 1040 PM EDT... CALCIUM BY 1045 PM EDT... BLACK RIVER BY 1050 PM EDT... FORT DRUM BY 1055 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 4404 7608 4414 7574 4394 7573 4394 7608 TIME...MOT...LOC 0230Z 261DEG 24KT 4400 7599 $$ HITCHCOCK
000 WWUS51 KBUF 090247 SVSBUF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1047 PM EDT FRI MAY 8 2009 NYC045-090300- /O.CON.KBUF.SV.W.0005.000000T0000Z-090509T0300Z/ JEFFERSON NY- 1047 PM EDT FRI MAY 8 2009 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT FOR CENTRAL JEFFERSON COUNTY... AT 1045 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WATERTOWN...MOVING EAST AT 30 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... BLACK RIVER AND CALCIUM BY 1050 PM EDT... FORT DRUM BY 1055 PM EDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. && LAT...LON 4394 7592 4404 7592 4410 7574 4394 7573 TIME...MOT...LOC 0246Z 261DEG 24KT 4400 7583 $$ HITCHCOCK
000 WWUS51 KBUF 090301 SVSBUF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BUFFALO NY 1101 PM EDT FRI MAY 8 2009 NYC045-090310- /O.EXP.KBUF.SV.W.0005.000000T0000Z-090509T0300Z/ JEFFERSON NY- 1101 PM EDT FRI MAY 8 2009 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JEFFERSON COUNTY HAS EXPIRED... AT 1100 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWED THAT THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER SEVERE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE. PLEASE REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE NATIONAL WEATHER SERVICE IN BUFFALO. LAT...LON 4394 7592 4404 7592 4410 7574 4394 7573 TIME...MOT...LOC 0247Z 261DEG 24KT 4400 7582 $$ HITCHCOCK
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 4:07 AM EDT | Wind Advisory | BUF | Allegany, Cattaraugus, Cayuga, Chautauqua, Erie, Genesee and 10 more | 20 hr |
| May 9, 4:27 AM EDT | Gale Warning | BUF | 24 hr | |
| May 9, 12:30 PM EDT | Special Marine Warning | BUF | 2 hr | |
| May 9, 12:38 PM EDT | Special Marine Warning | BUF | 40 min | |
| May 9, 1:12 PM EDT | Special Marine Warning | BUF | 25 min | |
| May 9, 1:18 PM EDT | Special Marine Warning | BUF | 87 min | |
| May 9, 1:28 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson | 46 min |
| May 9, 1:48 PM EDT | Severe Thunderstorm Warning | BUF | Jefferson, Lewis | 57 min |
| May 9, 2:12 PM EDT | Severe Thunderstorm Warning | BUF | Wayne | 40 min |
| May 9, 2:49 PM EDT | Special Marine Warning | BUF | 56 min | |
| May 9, 3:22 PM EDT | Special Marine Warning | BUF | 53 min | |
| May 9, 4:45 PM EDT | Small Craft Advisory | BUF | 33 hr |
Nearby
Severe Thunderstorm Warnings in New York, 2009Every severe thunderstorm warning in 2009
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.