Alert archive / New York / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 1, NWS Albany, NY

May 1, 19914 counties in New York

NWS Albany, NY issued this severe thunderstorm warning at May 1, 1991, 5:35 PM EDT for 4 counties in New York. It was in force for 85 min. 6 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
May 1, 1991, 5:35 PM EDT (21:35 UTC)
Expired
May 1, 1991, 7:00 PM EDT
In force
85 min
Issued by
NWS Albany, NY
Area
Whole counties

Counties Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Montgomery County, NY

What was reported inside it

TimeReportWhereRemark
May 1, 6:15 PM EDTThunderstorm Wind 0Herkimer, NY
May 1, 6:25 PM EDTThunderstorm Wind 0Hamilton, NY
May 1, 6:45 PM EDTThunderstorm Wind 0Hamilton, NY
May 1, 6:45 PM EDTTornado F1Fulton, NY
May 1, 6:50 PM EDTThunderstorm Wind 0Montgomery, NY
May 1, 7:00 PM EDTThunderstorm Wind 0Fulton, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.6 hours before the alert went out and 337 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, Buffalo Intl Airport, NY at 12:00Z on 1991-05-01Temperature 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, Buffalo Intl Airport, NY at 12:00Z on 1991-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.1939587897117136Sfc1 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
1088 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
296 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
May 1, 6:52 PM EDTSevere Thunderstorm WarningALYEssex, Franklin68 min
May 1, 6:52 PM EDTSevere Thunderstorm WarningALYWarren68 min
May 1, 7:13 PM EDTSevere Thunderstorm WarningALYFulton, Montgomery, Saratoga77 min
May 1, 7:13 PM EDTSevere Thunderstorm WarningALYSchenectady, Schoharie77 min
May 1, 7:58 PM EDTSevere Thunderstorm WarningALYRensselaer, Washington62 min
May 1, 7:58 PM EDTSevere Thunderstorm WarningALYAlbany62 min

Nearby

Severe Thunderstorm Warnings in New York, 1991Every severe thunderstorm warning in 1991

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.