Alert archive / New York / Freeze Warnings in 2019

Freeze Warning 1, NWS New York, NY

November 1, 20194 counties in New York; Passaic County, New Jersey; 4 counties in Connecticut

NWS New York, NY issued this freeze warning at Nov 1, 2019, 3:43 PM EDT for 4 counties in New York; Passaic County, New Jersey; 4 counties in Connecticut. It took effect at Nov 2, 2019, 12:00 AM EDT. It was in force for 10 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
Nov 1, 2019, 3:43 PM EDT (19:43 UTC)
In effect from
Nov 2, 2019, 12:00 AM EDT
Expired
Nov 2, 2019, 10:00 AM EDT
In force
10 hr
Issued by
NWS New York, NY

Counties Greater Bridgeport Planning Region, CT, Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT, Passaic County, NJ, Putnam County, NY, Rockland County, NY, Suffolk County, NY, Westchester County, NY

The radar

The Brookhaven radar (KOKX), 56 km from the middle of the area, began a volume at 19:41 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, 7.7 hours before the alert went out and 56 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, Brookhaven, NY at 12:00Z on 2019-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 2019-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -464 square meters per square second.1939587897117136156Sfc1 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
1329 m above ground
0-6 km bulk shear
103 kt
0-1 km storm-relative helicity
-464 m²/s²
0-3 km storm-relative helicity
-366 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 Nov 1, 1:35 PM EDT, 2 hours 8 minutes earlier.

Area forecast discussion, Nov 1, 1:35 PM EDT, 2 hours 8 minutes before
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Hazardous weather outlook, Nov 1, 12:02 PM EDT, 3 hours 41 minutes before
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In the hours before

Local storm report, Nov 1, 11:25 AM EDT, 4 hours 18 minutes before
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Local storm report, Nov 1, 1:06 PM EDT, 2 hours 37 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 31, 10:33 PM EDTSpecial Weather StatementOKXOrange57 min
Oct 31, 10:54 PM EDTSevere Thunderstorm WarningOKXOrange66 min
Oct 31, 11:18 PM EDTAreal Flood AdvisoryOKXOrange87 min
Oct 31, 11:29 PM EDTSpecial Weather StatementOKXPutnam, Rockland, Westchester91 min
Oct 31, 11:34 PM EDTSevere Thunderstorm WarningOKXOrange, Putnam, Rockland, Westchester56 min
Oct 31, 11:40 PM EDTSpecial Weather StatementOKXBronx, Kings, Nassau, New York, Queens, Richmond and 1 more65 min
Oct 31, 11:55 PM EDTSevere Thunderstorm WarningOKXOrange54 min
Nov 1, 12:28 AM EDTSevere Thunderstorm WarningOKXBronx, Kings, Nassau, New York, Orange, Putnam and 4 more62 min
Nov 1, 12:56 AM EDTSpecial Marine WarningOKX64 min
Nov 1, 1:06 AM EDTSpecial Marine WarningOKX39 min
Nov 1, 1:17 AM EDTSpecial Weather StatementOKXNassau43 min
Nov 1, 1:40 AM EDTSpecial Weather StatementOKXSuffolk50 min
Nov 1, 2:17 AM EDTSpecial Weather StatementOKXSuffolk43 min
Nov 1, 11:54 AM EDTSmall Craft AdvisoryOKX20 hr
Nov 1, 3:43 PM EDTFrost AdvisoryOKXSuffolk, Westchester18 hr

Nearby

Freeze Warnings in New York, 2019Freeze Warnings in Connecticut, 2019Freeze Warnings in New Jersey, 2019Every freeze warning in 2019

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.