Alert archive / New York / Frost Advisories in 2021
Frost Advisory 5, NWS New York, NY
NWS New York, NY issued this frost advisory at Nov 6, 2021, 6:43 AM EDT for Nassau County, New York. It took effect at Nov 7, 2021, 12:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Nov 6, 2021, 6:43 AM EDT (10:43 UTC)
- In effect from
- Nov 7, 2021, 12:00 AM EDT
- Expired
- Nov 7, 2021, 8:00 AM EST
- In force
- 9 hr
- Issued by
- NWS New York, NY
County Nassau County, NY
The radar
The Brookhaven radar (KOKX), 62 km from the middle of the area, began a volume at 10:46 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, 10.7 hours before the alert went out and 62 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
- 1662 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
947 WWUS71 KOKX 061043 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 643 AM EDT Sat Nov 6 2021 CTZ009>012-NYZ071-078>081-061300- /O.CON.KOKX.FZ.W.0007.000000T0000Z-211106T1300Z/ Southern Fairfield-Southern New Haven-Southern Middlesex- Southern New London-Southern Westchester-Northwest Suffolk- Northeast Suffolk-Southwest Suffolk-Southeast Suffolk- 643 AM EDT Sat Nov 6 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 28. * 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...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. && $$ NYZ179-061845- /O.NEW.KOKX.FR.Y.0005.211107T0400Z-211107T1300Z/ /O.CON.KOKX.FR.Y.0004.000000T0000Z-211106T1300Z/ Southern Nassau- 643 AM EDT Sat Nov 6 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT TO 8 AM EST SUNDAY... * WHAT...Temperatures as low as the mid 30s will result in frost formation. * WHERE...Southern Nassau County. * WHEN...For the first Frost Advisory, until 9 AM EDT this morning. For the second Frost Advisory, from midnight EDT tonight to 8 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ NJZ006-106-108-NYZ073-074-177-061300- /O.CON.KOKX.FR.Y.0004.000000T0000Z-211106T1300Z/ Hudson-Eastern Essex-Eastern Union-Bronx-Richmond (Staten Island)- Northern Nassau- 643 AM EDT Sat Nov 6 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as the lower and mid 30s will result in frost formation. * WHERE...In New Jersey, Hudson, Eastern Essex and Eastern Union Counties. In New York, Bronx, Richmond (Staten Island) and Northern Nassau Counties. * 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. && $$
2 follow-up statements
753 WWUS71 KOKX 062230 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 630 PM EDT Sat Nov 6 2021 NYZ179-071030- /O.CON.KOKX.FR.Y.0005.211107T0400Z-211107T1300Z/ Southern Nassau- 630 PM EDT Sat Nov 6 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT EDT TONIGHT TO 8 AM EST SUNDAY... * WHAT...Temperatures as low as the mid 30s will result in frost formation. * WHERE...Southern Nassau County. * WHEN...Midnight EDT tonight to 8 AM EST Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
714 WWUS71 KOKX 070813 NPWOKX URGENT - WEATHER MESSAGE National Weather Service New York NY 313 AM EST Sun Nov 7 2021 NYZ179-072100- /O.NEW.KOKX.FR.Y.0006.211108T0400Z-211108T1300Z/ /O.CON.KOKX.FR.Y.0005.000000T0000Z-211107T1300Z/ Southern Nassau- 313 AM EST Sun Nov 7 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EST THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 8 AM EST MONDAY... * WHAT...Temperatures as low as the mid 30s will result in frost formation. * WHERE...Southern Nassau County. * WHEN...Until 8 AM EST this morning, and again from 11 PM this evening to 8 AM EST Monday. * 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 6, 5:57 PM EDT | Coastal Flood Statement | OKX | Bronx, Nassau, Queens, Suffolk | 21 hr |
| Nov 6, 5:57 PM EDT | Coastal Flood Advisory | OKX | Kings, Nassau, Queens, Richmond, Westchester | 22 hr |
Nearby
Frost 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.