Alert archive / New York / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 19, NWS Burlington, VT

June 8, 2007St. Lawrence County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Jun 8, 2007, 8:38 PM EDT for St. Lawrence County, New York. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 8, 2007, 8:38 PM EDT (00:38 UTC)
Expired
Jun 8, 2007, 9:15 PM EDT
In force
37 min
Issued by
NWS Burlington, VT
Area
Counties, with a storm outline in the text

County St. Lawrence County, NY

The radar

The Ft Drum radar (KTYX), 94 km from the middle of the area, began a volume at 00:39 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.

IssuedProductOfficeLasted
Jun 8, 8:29 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Albany, NY (KALY), launched 00:00Z, 0.6 hours before the alert went out and 226 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 2007-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2456 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, Albany, NY at 00:00Z on 2007-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 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
2456 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1271 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
307 m²/s²
Significant tornado parameter
1.3
Supercell composite
9.8

Open this sounding in Storm Lab

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 Burlington, VT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 7:31 PM EDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jun 8, 7:31 PM EDT, 1 hour 7 minutes before
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Hazardous weather outlook, Jun 8, 8:34 PM EDT, 4 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BURLINGTON VT
834 PM EDT FRI JUN 8 2007

NYZ026>031-034-035-087-VTZ001-002-005-009-011-016>019-090300-
NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-EASTERN CLINTON-
SOUTHEASTERN ST. LAWRENCE-SOUTHERN FRANKLIN-WESTERN CLINTON-
WESTERN ESSEX-EASTERN ESSEX-SOUTHWESTERN ST. LAWRENCE-GRAND ISLE-
WESTERN FRANKLIN-WESTERN CHITTENDEN-WESTERN ADDISON-WESTERN RUTLAND-
EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON-EASTERN RUTLAND-
834 PM EDT FRI JUN 8 2007

...SEVERE THUNDERSTORM WATCH 373 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN NEW YORK...CENTRAL
VERMONT...NORTHWEST VERMONT AND SOUTHERN VERMONT.

.DAY ONE...TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

VTZ003-004-006>008-010-012-090300-
ORLEANS-ESSEX-LAMOILLE-CALEDONIA-WASHINGTON-ORANGE-WINDSOR-
834 PM EDT FRI JUN 8 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL VERMONT...NORTHEAST
VERMONT...NORTHWEST VERMONT AND SOUTHERN VERMONT.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED.

In the hours before

Special weather statement, Jun 8, 7:24 PM EDT, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
724 PM EDT FRI JUN 8 2007

NYZ026-027-029>031-034-087-090130-
NORTHERN ST. LAWRENCE-NORTHERN FRANKLIN-SOUTHEASTERN ST. LAWRENCE-
SOUTHERN FRANKLIN-WESTERN CLINTON-WESTERN ESSEX-
SOUTHWESTERN ST. LAWRENCE-
INCLUDING THE CITIES OF...MASSENA...MALONE...STAR LAKE...
SARANAC LAKE...TUPPER LAKE...DANNEMORA...LAKE PLACID...
OGDENSBURG...POTSDAM...GOUVERNEUR
724 PM EDT FRI JUN 8 2007

...STRONG STORMS TO MOVE INTO NORTHERN NEW YORK...

A LINE OF STRONG THUNDERSTORMS MOVING ACROSS SOUTHERN ONTARIO AND
LAKE ONTARIO WILL CROSS INTO WESTERN SAINT LAWRENCE COUNTY AROUND
830 PM EDT. THE STORMS WILL CONTINUE TO MOVE EASTWARD ACROSS THE
NORTHERN ADIRONDACKS AND SAINT LAWRENCE VALLEY THROUGH 10 PM.

PERSONS IN THE SAINT LAWRENCE VALLEY AND NORTHERN ADIRONDACKS
SHOULD PREPARE FOR THUNDERSTORMS LATER THIS EVENING. STRONG GUSTY
WINDS...SMALL HAIL...AND DEADLY LIGHTNING WILL ACCOMPANY THE
STORMS. BE READY TO MOVE INTO A STURDY BUILDING WHEN THUNDERSTORMS
APPROACH.

NYZ028-035-VTZ001-002-005-009-011-017>019-090130-
EASTERN CLINTON-EASTERN ESSEX-GRAND ISLE-WESTERN FRANKLIN-
WESTERN CHITTENDEN-WESTERN ADDISON-WESTERN RUTLAND-
EASTERN CHITTENDEN-EASTERN ADDISON-EASTERN RUTLAND-
INCLUDING THE CITIES OF...PLATTSBURGH...PORT HENRY...
TICONDEROGA...ALBURGH...SOUTH HERO...ST. ALBANS...BURLINGTON...
MIDDLEBURY...VERGENNES...RUTLAND...UNDERHILL...BRISTOL...RIPTON...
EAST WALLINGFORD...KILLINGTON
724 PM EDT FRI JUN 8 2007

...THUNDERSTORMS TO MOVE INTO THE CHAMPLAIN VALLEY BEFORE MIDNIGHT...

THUNDERSTORMS WILL MOVE INTO THE CHAMPLAIN VALLEY BY 11 PM
TONIGHT. THUNDERSTORMS MOVING ACROSS SOUTHERN ONTARIO AND WESTERN
NEW YORK WILL CROSS THE ADIRONDACKS THIS EVENING...BEFORE REACHING
THE CHAMPLAIN VALLEY.

PERSONS IN THE CHAMPLAIN VALLEY SHOULD PREPARE FOR THUNDERSTORMS
BETWEEN 11 PM AND 1 AM. STRONG GUSTY WINDS...SMALL HAIL...AND DEADLY
LIGHTNING WILL ACCOMPANY THE STORMS. BE READY TO MOVE INTO A
STURDY BUILDING WHEN THUNDERSTORMS APPROACH.

HANSON

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 9:13 PM EDTSevere Thunderstorm WarningBTVFranklin47 min
Jun 8, 9:18 PM EDTSevere Thunderstorm WarningBTVSt. Lawrence27 min

Nearby

Severe Thunderstorm Warnings in New York, 2007Every severe thunderstorm warning in 2007

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.