Alert archive / New York / Frost Advisories in 2021
Frost Advisory 6, NWS Buffalo, NY
NWS Buffalo, NY issued this frost advisory at May 27, 2021, 3:31 AM EDT for Jefferson County, Lewis County, New York. It took effect at May 28, 2021, 12:00 AM EDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 2021, 3:31 AM EDT (07:31 UTC)
- In effect from
- May 28, 2021, 12:00 AM EDT
- Expired
- May 28, 2021, 3:37 AM EDT
- In force
- 4 hr
- Issued by
- NWS Buffalo, NY
Counties Jefferson County, NY, Lewis County, NY
The radar
The Ft Drum radar (KTYX), 16 km from the middle of the area, began a volume at 07:32 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
Albany, NY (KALY), launched 00:00Z, 7.5 hours before the alert went out and 205 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
- 7 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
528 WWUS71 KBUF 270731 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 331 AM EDT Thu May 27 2021 NYZ007-008-271545- /O.NEW.KBUF.FR.Y.0006.210528T0400Z-210528T1200Z/ Jefferson-Lewis- Including the cities of Watertown and Lowville 331 AM EDT Thu May 27 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures in the lower 30s will result in frost formation. * WHERE...Jefferson and Lewis counties. * WHEN...From midnight tonight to 8 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. && $$ JLA
5 follow-up statements
608 WWUS71 KBUF 271428 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 1028 AM EDT Thu May 27 2021 NYZ007-008-272230- /O.CON.KBUF.FR.Y.0006.210528T0400Z-210528T1200Z/ Jefferson-Lewis- Including the cities of Watertown and Lowville 1028 AM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures in the lower to mid 30s will result in frost formation. * WHERE...Jefferson and Lewis counties. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Hitchcock
793 WWUS71 KBUF 271910 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 310 PM EDT Thu May 27 2021 NYZ007-008-280315- /O.CON.KBUF.FR.Y.0006.210528T0400Z-210528T1200Z/ Jefferson-Lewis- Including the cities of Watertown and Lowville 310 PM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures in the lower to mid 30s will result in frost formation. * WHERE...Jefferson and Lewis counties. * WHEN...From midnight tonight to 8 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. && $$
210 WWUS71 KBUF 272351 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 751 PM EDT Thu May 27 2021 NYZ007-008-280800- /O.CON.KBUF.FR.Y.0006.210528T0400Z-210528T1200Z/ Jefferson-Lewis- Including the cities of Watertown and Lowville 751 PM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures in the mid 30s will result in frost formation. * WHERE...Jefferson and Lewis counties. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
012 WWUS71 KBUF 280226 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 1026 PM EDT Thu May 27 2021 NYZ007-008-281030- /O.CON.KBUF.FR.Y.0006.210528T0400Z-210528T1200Z/ Jefferson-Lewis- Including the cities of Watertown and Lowville 1026 PM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY... * WHAT...Temperatures in the mid 30s will result in frost formation. * WHERE...Jefferson and Lewis counties. * WHEN...From midnight tonight to 8 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. && $$
871 WWUS71 KBUF 280737 NPWBUF URGENT - WEATHER MESSAGE National Weather Service Buffalo NY 337 AM EDT Fri May 28 2021 NYZ007-008-280845- /O.CAN.KBUF.FR.Y.0006.000000T0000Z-210528T1200Z/ Jefferson-Lewis- Including the cities of Watertown and Lowville 337 AM EDT Fri May 28 2021 ...FROST ADVISORY IS CANCELLED... Clouds have arrived in the area and further temperatures decreases and the attendant frost is no longer expected. $$
The office that day
Everything else NWS Buffalo, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 8:01 PM EDT | Special Weather Statement | BUF | Niagara | 29 min |
| May 26, 8:36 PM EDT | Special Weather Statement | BUF | Genesee | 24 min |
| May 27, 4:13 PM EDT | Small Craft Advisory | BUF | 52 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.