Alert archive / Connecticut / Frost Advisories in 2021
Frost Advisory 3, NWS New York, NY
NWS New York, NY issued this frost advisory at Nov 4, 2021, 3:48 PM EDT for 4 counties in Connecticut; Nassau County, Suffolk County, Westchester County, New York. It took effect at Nov 4, 2021, 11:00 PM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Nov 4, 2021, 3:48 PM EDT (19:48 UTC)
- In effect from
- Nov 4, 2021, 11:00 PM EDT
- Expired
- Nov 5, 2021, 9:00 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, Nassau County, NY, Suffolk County, NY, Westchester County, NY
The radar
The Brookhaven radar (KOKX), 41 km from the middle of the area, began a volume at 19:51 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, 7.8 hours before the alert went out and 41 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
- 932 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
057 WWUS71 KOKX 041948 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 348 PM EDT Thu Nov 4 2021 CTZ009>012-NYZ071-078>081-177-179-050900- /O.NEW.KOKX.FR.Y.0003.211105T0300Z-211105T1300Z/ Southern Fairfield-Southern New Haven-Southern Middlesex- Southern New London-Southern Westchester-Northwest Suffolk- Northeast Suffolk-Southwest Suffolk-Southeast Suffolk- Northern Nassau-Southern Nassau- 348 PM EDT Thu Nov 4 2021 ...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 9 AM EDT FRIDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...From 11 PM this evening to 9 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
3 follow-up statements
170 WWUS71 KOKX 050908 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 508 AM EDT Fri Nov 5 2021 CTZ009>012-NYZ071-078>081-177-179-051300- /O.CON.KOKX.FR.Y.0003.000000T0000Z-211105T1300Z/ Southern Fairfield-Southern New Haven-Southern Middlesex- Southern New London-Southern Westchester-Northwest Suffolk- Northeast Suffolk-Southwest Suffolk-Southeast Suffolk- Northern Nassau-Southern Nassau- 508 AM EDT Fri Nov 5 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of southern Connecticut and southeast New York. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
757 WWUS71 KOKX 050952 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 552 AM EDT Fri Nov 5 2021 CTZ009>012-NYZ071-078>081-051800- /O.NEW.KOKX.FZ.W.0007.211106T0200Z-211106T1300Z/ /O.CON.KOKX.FR.Y.0003.000000T0000Z-211105T1300Z/ Southern Fairfield-Southern New Haven-Southern Middlesex- Southern New London-Southern Westchester-Northwest Suffolk- Northeast Suffolk-Southwest Suffolk-Southeast Suffolk- 552 AM EDT Fri Nov 5 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT SATURDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 26 expected. * WHERE...In Connecticut, Southern Fairfield, Southern New Haven, Southern Middlesex and Southern New London Counties. In New York, Southern Westchester and Suffolk Counties. * WHEN...For the Frost Advisory, until 9 AM EDT this morning. For the Freeze Warning, from 10 PM this evening to 9 AM EDT Saturday. * 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. && $$ NYZ177-179-051800- /O.NEW.KOKX.FR.Y.0004.211106T0200Z-211106T1300Z/ /O.CON.KOKX.FR.Y.0003.000000T0000Z-211105T1300Z/ Northern Nassau-Southern Nassau- 552 AM EDT Fri Nov 5 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT SATURDAY... * WHAT...For the first Frost Advisory, temperatures as low as 36 will result in frost formation. For the second Frost Advisory, temperatures as low as 33 will result in frost formation. * WHERE...Nassau County. * WHEN...For the first Frost Advisory, until 9 AM EDT this morning. For the second Frost Advisory, from 10 PM this evening to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ006-106-108-NYZ073-074-051800- /O.NEW.KOKX.FR.Y.0004.211106T0200Z-211106T1300Z/ Hudson-Eastern Essex-Eastern Union-Bronx-Richmond (Staten Island)- 552 AM EDT Fri Nov 5 2021 ...FROST ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In New Jersey, Hudson, Eastern Essex and Eastern Union Counties. In New York, Bronx and Richmond (Staten Island) Counties. * WHEN...From 10 PM this evening to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
825 WWUS71 KOKX 051316 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 916 AM EDT Fri Nov 5 2021 CTZ009>012-NYZ071-078>081-052130- /O.EXP.KOKX.FR.Y.0003.000000T0000Z-211105T1300Z/ /O.CON.KOKX.FZ.W.0007.211106T0200Z-211106T1300Z/ Southern Fairfield-Southern New Haven-Southern Middlesex- Southern New London-Southern Westchester-Northwest Suffolk- Northeast Suffolk-Southwest Suffolk-Southeast Suffolk- 916 AM EDT Fri Nov 5 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...In Connecticut, Southern Fairfield, Southern New London, Southern New Haven and Southern Middlesex Counties. In New York, Southern Westchester, Southwest Suffolk, Southeast Suffolk, Northeast Suffolk and Northwest Suffolk Counties. * WHEN...From 10 PM this evening to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ NYZ177-179-052130- /O.EXP.KOKX.FR.Y.0003.000000T0000Z-211105T1300Z/ /O.CON.KOKX.FR.Y.0004.211106T0200Z-211106T1300Z/ Northern Nassau-Southern Nassau- 916 AM EDT Fri Nov 5 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Southern Nassau and Northern Nassau Counties. * WHEN...From 10 PM this evening to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ006-106-108-NYZ073-074-052130- /O.CON.KOKX.FR.Y.0004.211106T0200Z-211106T1300Z/ Hudson-Eastern Essex-Eastern Union-Bronx-Richmond (Staten Island)- 916 AM EDT Fri Nov 5 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...In New Jersey, Hudson, Eastern Essex and Eastern Union Counties. In New York, Bronx and Richmond (Staten Island) Counties. * WHEN...From 10 PM this evening to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS New York, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 4, 3:53 PM EDT | Coastal Flood Statement | OKX | Greater Bridgeport Planning Region | 21 hr |
| Nov 4, 3:53 PM EDT | Coastal Flood Advisory | OKX | Nassau | 19 hr |
Nearby
Frost Advisories in Connecticut, 2021Frost Advisories in New York, 2021Every frost advisory 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.