Alert archive / New Jersey / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 33, NWS New York, NY

July 7, 1991Middlesex County, Union County, New Jersey

NWS New York, NY issued this severe thunderstorm warning at Jul 7, 1991, 12:10 PM EDT for Middlesex County, Union County, New Jersey. It was in force for 60 min. 1 report 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
Jul 7, 1991, 12:10 PM EDT (16:10 UTC)
Expired
Jul 7, 1991, 1:10 PM EDT
In force
60 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Middlesex County, NJ, Union County, NJ

What was reported inside it

TimeReportWhereRemark
Jul 7, 12:45 PM EDTHail 1Middlesex, NJ

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

Atlantic City In, NJ (KACY), launched 12:00Z, 4.2 hours before the alert went out and 123 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, Atlantic City In, NJ at 12:00Z on 1991-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1207 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 12:00Z on 1991-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 76 square meters per square second.1939Sfc1 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
1207 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
1172 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
67 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 New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 8:13 PM EDTSevere Thunderstorm WarningOKXBergen62 min
Jul 7, 11:23 AM EDTSevere Thunderstorm WarningOKXHunterdon, Warren52 min
Jul 7, 11:50 AM EDTSevere Thunderstorm WarningOKXSomerset40 min
Jul 7, 12:52 PM EDTSevere Thunderstorm WarningOKXMonmouth53 min
Jul 6, 8:48 PM EDTSevere Thunderstorm WarningOKXBronx, New York57 min
Jul 6, 8:48 PM EDTSevere Thunderstorm WarningOKXKings, Queens57 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 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.