Alert archive / New Jersey / Freeze Warnings in 2020

Freeze Warning 1, NWS New York, NY

April 10, 2020Passaic County, New Jersey

NWS New York, NY issued this freeze warning at Apr 10, 2020, 3:35 PM EDT for Passaic County, New Jersey. It took effect at Apr 11, 2020, 4:00 AM EDT. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 10, 2020, 3:35 PM EDT (19:35 UTC)
In effect from: Apr 11, 2020, 4:00 AM EDT
Expired: Apr 11, 2020, 9:00 AM EDT
In force: 5 hr
Issued by: NWS New York, NY

County Passaic County, NJ

The radar

The Philadelphia radar (KDIX), 121 km from the middle of the area, began a volume at 19:35 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

Brookhaven, NY (KOKX), launched 12:00Z, 7.6 hours before the alert went out and 122 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1018 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 133 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 freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this freeze warning went out at Apr 10, 1:34 PM EDT, 2 hours 1 minute earlier.

Area forecast discussion, Apr 10, 1:34 PM EDT, 2 hours 1 minute before

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Hazardous weather outlook, Apr 10, 5:25 AM EDT, 10 hours 10 minutes before

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In the hours before

Local storm report, Apr 10, 12:03 PM EDT, 3 hours 32 minutes before

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Local storm report, Apr 10, 12:10 PM EDT, 3 hours 25 minutes before

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Local storm report, Apr 10, 12:19 PM EDT, 3 hours 16 minutes before

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Local storm report, Apr 10, 12:23 PM EDT, 3 hours 12 minutes before

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Local storm report, Apr 10, 12:30 PM EDT, 3 hours 5 minutes before

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Local storm report, Apr 10, 12:33 PM EDT, 3 hours 2 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 3:35 PM EDT	Fire Weather Watch	OKX		12 hr

Nearby

Freeze Warnings in New Jersey, 2020 Every freeze warning in 2020

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.