Alert archive / New York / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 52, NWS Burlington, VT

July 25, 2006St. Lawrence County, New York

NWS Burlington, VT issued this severe thunderstorm warning at Jul 25, 2006, 3:00 PM EDT for St. Lawrence County, New York. It was in force for 90 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
Jul 25, 2006, 3:00 PM EDT (19:00 UTC)
Expired
Jul 25, 2006, 4:30 PM EDT
In force
90 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 19:00 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 12:00Z, 7.0 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 12:00Z on 2006-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 2006-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1187 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 25, 11:08 AM EDT, 3 hours 52 minutes earlier.

Area forecast discussion, Jul 25, 11:08 AM EDT, 3 hours 52 minutes before
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Hazardous weather outlook, Jul 25, 4:31 AM EDT, 10 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BURLINGTON VT
431 AM EDT TUE JUL 25 2006

NYZ026>031-034-035-087-VTZ001>012-016>019-260845-
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-ORLEANS-ESSEX-WESTERN CHITTENDEN-LAMOILLE-
CALEDONIA-WASHINGTON-WESTERN ADDISON-ORANGE-WESTERN RUTLAND-
WINDSOR-EASTERN FRANKLIN-EASTERN CHITTENDEN-EASTERN ADDISON-
EASTERN RUTLAND-
431 AM EDT TUE JUL 25 2006

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

.DAY ONE...TODAY AND TONIGHT

A WEAK COLD FRONT ACROSS SOUTHERN CANADA WILL DISSIPATE TODAY AS
IT SINKS SLOWLY SOUTHWARD INTO NORTHERN NEW YORK AND VERMONT.
INCREASING MOISTURE WILL LEAD TO SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS ACROSS THE NORTHERN PORTIONS OF THE TWO STATES THIS
MORNING...AND AGAIN BY THIS AFTERNOON. FURTHER SOUTH ACROSS
SOUTHERN VERMONT...THE THREAT OF SHOWERS AND THUNDERSTORMS IS
LOWER...WITH ONLY A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY
LATER IN THE DAY. LINGERING SHOWERS AND THUNDERSTORMS SHOULD END
BY THE MID EVENING HOURS...WITH PARTLY CLOUDY SKIES EXPECTED
DURING THE OVERNIGHT HOURS AREA WIDE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

WARM AND HUMID CONDITIONS...ALONG WITH A DAILY CHANCE OF SHOWERS
AND THUNDERSTORMS WILL PERSIST THROUGH SATURDAY...AT WHICH TIME A
MORE SIGNIFICANT COLD FRONT WILL PUSH SOUTHWARD ACROSS THE AREA.
BEHIND THIS FRONT...DRIER AND LESS HUMID CONDITIONS ARE EXPECTED
SUNDAY INTO MONDAY OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY.

JMG

In the hours before

Special weather statement, Jul 25, 11:37 AM EDT, 3 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
1137 AM EDT TUE JUL 25 2006

NYZ026-027-251600-
NORTHERN FRANKLIN-NORTHERN ST. LAWRENCE-
INCLUDING...MASSENA
1137 AM EDT TUE JUL 25 2006

AT 1130 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM OVER LOUISVILLE...MOVING EAST AT 30 MPH.

THE THUNDERSTORM WILL BE NEAR MASSENA BY 1150...AND BY ROOSEVELTOWN
AND HELENA BY NOON.

SMALL HAIL AND WIND GUSTS OF 35 MPH OR HIGHER MAY ACCOMPANY THE
THUNDERSTORMS.

LAHIFF
Special weather statement, Jul 25, 12:02 PM EDT, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
1202 PM EDT TUE JUL 25 2006

NYZ026-027-030-031-251700-
NORTHERN FRANKLIN-NORTHERN ST. LAWRENCE-WESTERN CLINTON-SOUTHERN
FRANKLIN-
INCLUDING...MALONE AND MASSENA
1202 PM EDT TUE JUL 25 2006

AT 1154 AM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS AND THUNDERSTORMS OVER ROOSEVELTOWN...MOVING EAST AT 35 MPH.

THE THUNDERSTORMS WILL BE NEAR FORT COVINGTON BY 1220 PM...NEAR
CONSTABLE BY 1240 PM AND NEAR CHURUBUSCO BY 100 PM.

THESE THUNDERSTORMS ARE PRODUCING FREQUENT DEADLY LIGHTNING. SEEK
SAFE SHELTER INSIDE A BUILDING OR VEHICLE.

SMALL HAIL...TORRENTIAL DOWNPOURS...AND WIND GUSTS OF 35 MPH OR
HIGHER WILL ACCOMPANY THE THUNDERSTORMS.

LAHIFF
Special weather statement, Jul 25, 2:43 PM EDT, 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BURLINGTON VT
243 PM EDT TUE JUL 25 2006

NYZ026-027-087-251945-
NORTHERN FRANKLIN-NORTHERN ST. LAWRENCE-SOUTHWESTERN ST. LAWRENCE-
INCLUDING...MASSENA
243 PM EDT TUE JUL 25 2006

AT 236 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS AND THUNDERSTORMS FROM 12 MILES NORTHWEST OF LOUISVILLE TO 24
MILES WEST OF CHIPMAN...MOVING EAST AT 25 MPH.

THUNDERSTORMS WILL BE NEAR MASSENA...LOUISVILLE BY 320 PM...NEAR
MADRID...CHIPMAN BY 330 PM...NEAR HOGANSBURG...HELENA BY 340 PM AND
NEAR RAYMONDVILLE BY 350 PM.

THESE THUNDERSTORMS ARE PRODUCING FREQUENT DEADLY LIGHTNING. SEEK
SAFE SHELTER INSIDE A BUILDING OR VEHICLE.

SMALL HAIL...TORRENTIAL DOWNPOURS...AND WIND GUSTS OF 35 MPH OR
HIGHER MAY ACCOMPANY THESE THUNDERSTORMS.

LAHIFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 4:58 PM EDTSevere Thunderstorm WarningBTVChittenden62 min
Jul 25, 6:03 PM EDTSevere Thunderstorm WarningBTVLamoille27 min

Nearby

Severe Thunderstorm Warnings in New York, 2006Every severe thunderstorm warning in 2006

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.