Alert archive / New York / Freeze Warnings in 2021

Freeze Warning 9, NWS New York, NY

November 22, 20214 counties in New York; Hudson County, New Jersey

NWS New York, NY issued this freeze warning at Nov 22, 2021, 3:37 AM EST for 4 counties in New York; Hudson County, New Jersey. It took effect at Nov 23, 2021, 12:00 AM EST. It was in force for 9 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 22, 2021, 3:37 AM EST (08:37 UTC)
In effect from
Nov 23, 2021, 12:00 AM EST
Expired
Nov 23, 2021, 9:00 AM EST
In force
9 hr
Issued by
NWS New York, NY

Counties Hudson County, NJ, Bronx County, NY, Kings County, NY, New York County, NY, Queens County, NY

The radar

The Brookhaven radar (KOKX), 93 km from the middle of the area, began a volume at 08:41 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 00:00Z, 8.6 hours before the alert went out and 93 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 00:00Z on 2021-11-22Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2021-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 square meters per square second.1939587897Sfc1 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
757 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
323 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

371 
WWUS71 KOKX 220837
NPWOKX

URGENT - WEATHER MESSAGE
National Weather Service New York NY
337 AM EST Mon Nov 22 2021

NJZ006-NYZ072-073-075-176-178-222130-
/O.UPG.KOKX.FZ.A.0008.211123T0500Z-211123T1300Z/
/O.NEW.KOKX.FZ.W.0009.211123T0500Z-211123T1400Z/
Hudson-New York (Manhattan)-Bronx-Kings (Brooklyn)-
Northern Queens-Southern Queens-
337 AM EST Mon Nov 22 2021

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EST
TUESDAY...

* WHAT...Near freezing temperatures as low as 32 expected.

* WHERE...In New Jersey, Hudson County. In New York, New York 
  (Manhattan), Bronx, Kings (Brooklyn), Northern Queens and 
  Southern Queens Counties.

* WHEN...From midnight tonight to 9 AM EST Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
3 follow-up statements
216 
WWUS71 KOKX 222032
NPWOKX

URGENT - WEATHER MESSAGE
National Weather Service New York NY
332 PM EST Mon Nov 22 2021

NJZ006-NYZ072-073-075-176-178-230945-
/O.CON.KOKX.FZ.W.0009.211123T0500Z-211123T1400Z/
Hudson-New York (Manhattan)-Bronx-Kings (Brooklyn)-
Northern Queens-Southern Queens-
332 PM EST Mon Nov 22 2021

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
EST TUESDAY...

* WHAT...Near freezing temperatures as low as 32 expected.

* WHERE...In New Jersey, Hudson County. In New York, New York 
  (Manhattan), Bronx, Southern Queens, Kings (Brooklyn) and 
  Northern Queens Counties.

* WHEN...From midnight tonight to 9 AM EST Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
443 
WWUS71 KOKX 230817
NPWOKX

URGENT - WEATHER MESSAGE
National Weather Service New York NY
317 AM EST Tue Nov 23 2021

NJZ006-NYZ072-073-075-176-178-231400-
/O.CON.KOKX.FZ.W.0009.000000T0000Z-211123T1400Z/
Hudson-New York (Manhattan)-Bronx-Kings (Brooklyn)-
Northern Queens-Southern Queens-
317 AM EST Tue Nov 23 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EST THIS MORNING...

* WHAT...Near freezing temperatures as low as 32 expected.

* WHERE...In New Jersey, Hudson County. In New York, New York
  (Manhattan), Bronx, Queens, and Kings (Brooklyn) Counties.

* WHEN...Until 9 AM EST this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
100 
WWUS71 KOKX 231355
NPWOKX

URGENT - WEATHER MESSAGE
National Weather Service New York NY
855 AM EST Tue Nov 23 2021

NJZ006-NYZ072-073-075-176-178-231500-
/O.EXP.KOKX.FZ.W.0009.000000T0000Z-211123T1400Z/
Hudson-New York (Manhattan)-Bronx-Kings (Brooklyn)-
Northern Queens-Southern Queens-
855 AM EST Tue Nov 23 2021

...FREEZE WARNING WILL EXPIRE AT 9 AM EST THIS MORNING...

Freezing temperatures have occurred early this morning across New
York City and Hudson County, New Jersey, with temperatures rising
through the mid and upper 30s through the rest of the morning.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 22, 3:35 AM ESTSmall Craft AdvisoryOKX48 hr
Nov 22, 6:05 AM ESTSmall Craft AdvisoryOKX52 hr

Nearby

Freeze Warnings in New York, 2021Freeze Warnings in New Jersey, 2021Every freeze warning in 2021

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.