Alert archive / Connecticut / Freeze Warnings in 2021
Freeze Warning 3, NWS New York, NY
NWS New York, NY issued this freeze warning at Apr 21, 2021, 3:41 AM EDT for 4 counties in Connecticut; 4 counties in New York; Bergen County, Passaic County, New Jersey. It took effect at Apr 22, 2021, 2:00 AM EDT. It was in force for 7 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 21, 2021, 3:41 AM EDT (07:41 UTC)
- In effect from
- Apr 22, 2021, 2:00 AM EDT
- Expired
- Apr 22, 2021, 9:00 AM EDT
- In force
- 7 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, Bergen County, NJ, Passaic County, NJ, Orange County, NY, Putnam County, NY, Rockland County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 72 km from the middle of the area, began a volume at 07:40 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, 7.7 hours before the alert went out and 72 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1938 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
858 WWUS71 KOKX 210741 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 341 AM EDT Wed Apr 21 2021 CTZ005-006-NJZ002-NYZ067-068-212100- /O.UPG.KOKX.FZ.A.0003.210422T0600Z-210422T1300Z/ /O.NEW.KOKX.FZ.W.0003.210422T0600Z-210422T1300Z/ Northern Fairfield-Northern New Haven-Western Passaic-Orange- Putnam- 341 AM EDT Wed Apr 21 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...In New Jersey, Western Passaic County. In Connecticut, Northern Fairfield and Northern New Haven Counties. In New York, Orange and Putnam Counties. * WHEN...From 2 AM to 9 AM EDT Thursday. * IMPACTS...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. && $$
4 follow-up statements
803 WWUS71 KOKX 211959 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 359 PM EDT Wed Apr 21 2021 NJZ004-103-NYZ069-070-220900- /O.EXA.KOKX.FZ.W.0003.210422T0600Z-210422T1300Z/ Eastern Passaic-Western Bergen-Rockland-Northern Westchester- 359 PM EDT Wed Apr 21 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...In New Jersey, Eastern Passaic and Western Bergen Counties. In New York, Rockland and Northern Westchester Counties. * WHEN...From 2 AM to 9 AM EDT Thursday. * IMPACTS...Freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CTZ005-006-NJZ002-NYZ067-068-220900- /O.CON.KOKX.FZ.W.0003.210422T0600Z-210422T1300Z/ Northern Fairfield-Northern New Haven-Western Passaic-Orange- Putnam- 359 PM EDT Wed Apr 21 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...In New Jersey, Western Passaic County. In Connecticut, Northern Fairfield and Northern New Haven Counties. In New York, Orange and Putnam Counties. * WHEN...From 2 AM to 9 AM EDT Thursday. * IMPACTS...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. && $$
164 WWUS71 KOKX 212131 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 531 PM EDT Wed Apr 21 2021 CTZ007-008-220900- /O.EXA.KOKX.FZ.W.0003.210422T0600Z-210422T1300Z/ Northern Middlesex-Northern New London- 531 PM EDT Wed Apr 21 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Northern Middlesex and Northern New London Counties. * WHEN...From 2 AM to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ CTZ005-006-NJZ002-004-103-NYZ067>070-220900- /O.CON.KOKX.FZ.W.0003.210422T0600Z-210422T1300Z/ Northern Fairfield-Northern New Haven-Western Passaic- Eastern Passaic-Western Bergen-Orange-Putnam-Rockland- Northern Westchester- 531 PM EDT Wed Apr 21 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...In New Jersey, Eastern Passaic, Western Passaic and Western Bergen Counties. In Connecticut, Northern Fairfield and Northern New Haven Counties. In New York, Northern Westchester, Orange, Rockland and Putnam Counties. * WHEN...From 2 AM to 9 AM EDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation. 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. && $$
261 WWUS71 KOKX 220720 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 320 AM EDT Thu Apr 22 2021 CTZ005>008-NJZ002-004-103-NYZ067>070-221300- /O.CON.KOKX.FZ.W.0003.000000T0000Z-210422T1300Z/ Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Western Passaic-Eastern Passaic- Western Bergen-Orange-Putnam-Rockland-Northern Westchester- 320 AM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30. * WHERE...Portions of northeast New Jersey, southern Connecticut and southeast New York. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
320 WWUS71 KOKX 221311 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 911 AM EDT Thu Apr 22 2021 CTZ005>008-NJZ002-004-103-NYZ067>070-221415- /O.EXP.KOKX.FZ.W.0003.000000T0000Z-210422T1300Z/ Northern Fairfield-Northern New Haven-Northern Middlesex- Northern New London-Western Passaic-Eastern Passaic- Western Bergen-Orange-Putnam-Rockland-Northern Westchester- 911 AM EDT Thu Apr 22 2021 ...FREEZE WARNING HAS EXPIRED... Temperatures have risen above freezing this morning. $$
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 8:48 PM EDT | Freeze Watch | OKX | Greater Bridgeport Planning Region, Naugatuck Valley Planning Region | 7 hr |
| Apr 21, 12:59 PM EDT | Special Weather Statement | OKX | 46 min | |
| Apr 21, 2:05 PM EDT | Special Weather Statement | OKX | 85 min | |
| Apr 21, 2:10 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 50 min |
| Apr 21, 2:28 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region | 47 min |
| Apr 21, 2:53 PM EDT | Severe Thunderstorm Warning | OKX | Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region | 67 min |
| Apr 21, 4:02 PM EDT | Special Weather Statement | OKX | 58 min | |
| Apr 21, 10:58 AM EDT | Special Weather Statement | OKX | Nassau | 47 min |
| Apr 21, 12:52 PM EDT | Special Weather Statement | OKX | Suffolk | 23 min |
| Apr 21, 1:23 PM EDT | Special Weather Statement | OKX | Orange, Rockland | 67 min |
| Apr 21, 1:41 PM EDT | Severe Thunderstorm Warning | OKX | Orange, Rockland | 64 min |
| Apr 21, 2:12 PM EDT | Severe Thunderstorm Warning | OKX | Bronx, Nassau, New York, Queens, Westchester | 48 min |
| Apr 21, 2:14 PM EDT | Special Marine Warning | OKX | 61 min | |
| Apr 21, 2:34 PM EDT | Special Marine Warning | OKX | 86 min | |
| Apr 21, 3:07 PM EDT | Special Marine Warning | OKX | 113 min | |
| Apr 21, 3:17 PM EDT | Severe Thunderstorm Warning | OKX | Nassau, Suffolk | 19 min |
Nearby
Freeze Warnings in Connecticut, 2021Freeze 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.