Alert archive / New York / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 2, NWS Albany, NY

June 7, 1999Columbia County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jun 7, 1999, 5:10 PM EDT for Columbia County, New York. It was in force for 60 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
Jun 7, 1999, 5:10 PM EDT (21:10 UTC)
Expired
Jun 7, 1999, 6:10 PM EDT
In force
60 min
Issued by
NWS Albany, NY
Area
Whole counties

County Columbia County, NY

What was reported inside it

TimeReportWhereRemark
Jun 7, 6:08 PM EDTHail 0.75Philmont, NY
Jun 7, 6:15 PM EDTThunderstorm Wind 90Hillsdale, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 7, 4:30 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.2 hours before the alert went out and 52 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 1999-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1647 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 1999-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
1647 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 4:48 PM EDTSevere Thunderstorm WarningALYSchoharie42 min
Jun 7, 5:15 PM EDTSevere Thunderstorm WarningALYGreene60 min
Jun 7, 6:15 PM EDTSevere Thunderstorm WarningALYColumbia25 min
Jun 7, 6:10 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region55 min
Jun 7, 7:06 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region19 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.