Alert archive / New York / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 61, NWS Burlington, VT

July 18, 20084 counties in New York

NWS Burlington, VT issued this severe thunderstorm warning at Jul 18, 2008, 7:29 PM EDT for 4 counties in New York. It was in force for 61 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 18, 2008, 7:29 PM EDT (23:29 UTC)
Expired
Jul 18, 2008, 8:30 PM EDT
In force
61 min
Issued by
NWS Burlington, VT
Area
Storm-based polygon

Counties Clinton County, NY, Essex County, NY, Franklin County, NY, St. Lawrence County, NY

The radar

The Burlington radar (KCXX), 83 km from the middle of the area, began a volume at 23:31 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
Jul 18, 1:24 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 11.5 hours before the alert went out and 202 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 2008-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 800 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 2008-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
800 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
822 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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 18, 5:39 PM EDT, 1 hour 50 minutes earlier.

Area forecast discussion, Jul 18, 5:39 PM EDT, 1 hour 50 minutes before
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Hazardous weather outlook, Jul 18, 1:44 PM EDT, 5 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BURLINGTON VT
144 PM EDT FRI JUL 18 2008

NYZ026>031-034-035-087-VTZ001>012-016>019-191745-
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-
144 PM EDT FRI JUL 18 2008

...SEVERE THUNDERSTORM WATCH 698 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

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

.DAY ONE...THIS AFTERNOON AND 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

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Local storm report, Jul 18, 6:00 PM EDT, 1 hour 29 minutes before
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Local storm report, Jul 18, 6:01 PM EDT, 1 hour 28 minutes before
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Local storm report, Jul 18, 6:58 PM EDT, 31 minutes before
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Local storm report, Jul 18, 7:22 PM EDT, 7 minutes before
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Local storm report, Jul 18, 7:23 PM EDT, 6 minutes before
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      <p id="message2">
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Local storm report, Jul 18, 7:25 PM EDT, 4 minutes before
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      <p id="message2">
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 2:38 PM EDTSevere Thunderstorm WarningBTVCaledonia, Essex, Washington67 min
Jul 18, 2:53 PM EDTSevere Thunderstorm WarningBTVAddison, Caledonia, Chittenden, Lamoille, Orange, Washington67 min
Jul 18, 2:55 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle50 min
Jul 18, 3:03 PM EDTSevere Thunderstorm WarningBTVAddison, Chittenden42 min
Jul 18, 3:21 PM EDTSevere Thunderstorm WarningBTVAddison, Orange, Washington, Windsor54 min
Jul 18, 3:35 PM EDTSevere Thunderstorm WarningBTVCaledonia, Franklin, Lamoille, Orleans55 min
Jul 18, 3:42 PM EDTSevere Thunderstorm WarningBTVChittenden, Franklin, Grand Isle63 min
Jul 18, 3:44 PM EDTSevere Thunderstorm WarningBTVAddison, Orange, Rutland, Washington, Windsor41 min
Jul 18, 3:59 PM EDTSevere Thunderstorm WarningBTVFranklin, Grand Isle61 min
Jul 18, 4:12 PM EDTSevere Thunderstorm WarningBTVOrange, Rutland, Windsor63 min
Jul 18, 4:20 PM EDTSevere Thunderstorm WarningBTVOrange, Windsor25 min
Jul 18, 4:21 PM EDTSevere Thunderstorm WarningBTVCaledonia, Chittenden, Franklin, Lamoille, Washington54 min
Jul 18, 2:09 PM EDTSevere Thunderstorm WarningBTVClinton, Franklin66 min
Jul 18, 3:12 PM EDTSevere Thunderstorm WarningBTVFranklin, St. Lawrence63 min
Jul 18, 5:28 PM EDTSevere Thunderstorm WarningBTVFranklin, St. Lawrence62 min
Jul 18, 6:35 PM EDTSevere Thunderstorm WarningBTVFranklin, St. Lawrence55 min

Nearby

Severe Thunderstorm Warnings in New York, 2008Every severe thunderstorm warning in 2008

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.