Alert archive / Maine / Frost Advisories in 2021
Frost Advisory 2, NWS Caribou, ME
NWS Caribou, ME issued this frost advisory at May 27, 2021, 2:49 AM EDT for Penobscot County, Piscataquis County, Washington County, Maine. It took effect at May 28, 2021, 1:00 AM EDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 2021, 2:49 AM EDT (06:49 UTC)
- In effect from
- May 28, 2021, 1:00 AM EDT
- Expired
- May 28, 2021, 6:00 AM EDT
- In force
- 5 hr
- Issued by
- NWS Caribou, ME
Counties Penobscot County, ME, Piscataquis County, ME, Washington County, ME
The radar
The Caribou radar (KCBW), 90 km from the middle of the area, began a volume at 06:52 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
Caribou, ME (KCAR), launched 00:00Z, 6.8 hours before the alert went out and 168 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
- 103 J/kg
- Mixed-layer CIN
- -270 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
191 WWUS71 KCAR 270649 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 249 AM EDT Thu May 27 2021 MEZ002-005-006-271500- /O.NEW.KCAR.FZ.W.0001.210528T0500Z-210528T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 249 AM EDT Thu May 27 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures around 31 expected. * WHERE...Northeast Aroostook, Northern Penobscot and Southeast Aroostook Counties. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-271500- /O.NEW.KCAR.FR.Y.0002.210528T0500Z-210528T1000Z/ Central Piscataquis- Including the cities of Greenville, Monson, and Blanchard 249 AM EDT Thu May 27 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Temperatures around 33 will result in frost formation. * WHERE...Central Piscataquis County. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
6 follow-up statements
100 WWUS71 KCAR 271909 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 309 PM EDT Thu May 27 2021 MEZ002-005-006-280315- /O.CON.KCAR.FZ.W.0001.210528T0500Z-210528T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 309 PM EDT Thu May 27 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures around 32 degrees expected. * WHERE...Northeast Aroostook, Northern Penobscot and Southeast Aroostook Counties. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-280315- /O.CON.KCAR.FR.Y.0002.210528T0500Z-210528T1000Z/ Central Piscataquis- Including the cities of Greenville, Monson, and Blanchard 309 PM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Temperatures around 33 degrees will result in frost formation. * WHERE...Central Piscataquis County. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
212 WWUS71 KCAR 272126 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 526 PM EDT Thu May 27 2021 MEZ002-005-006-280530- /O.CON.KCAR.FZ.W.0001.210528T0500Z-210528T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 526 PM EDT Thu May 27 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures around 31 expected. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ011-031-032-280530- /O.EXA.KCAR.FR.Y.0002.210528T0500Z-210528T1000Z/ Central Penobscot-Southern Piscataquis-Northern Washington- Including the cities of Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 526 PM EDT Thu May 27 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Temperatures around 34 will result in frost formation. * WHERE...Central Penobscot, Southern Piscataquis and Northern Washington Counties. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MEZ010-280530- /O.CON.KCAR.FR.Y.0002.210528T0500Z-210528T1000Z/ Central Piscataquis- Including the cities of Greenville, Monson, and Blanchard 526 PM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Temperatures around 32 will result in frost formation. * WHERE...Central Piscataquis County. * WHEN...From 1 AM to 6 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. && $$
094 WWUS71 KCAR 280115 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 915 PM EDT Thu May 27 2021 MEZ002-005-006-280915- /O.CON.KCAR.FZ.W.0001.210528T0500Z-210528T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 915 PM EDT Thu May 27 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures around 31 expected. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...From 1 AM to 6 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-011-031-032-280915- /O.CON.KCAR.FR.Y.0002.210528T0500Z-210528T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 915 PM EDT Thu May 27 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT FRIDAY... * WHAT...Temperatures around 32 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Northern Washington and Southern Piscataquis Counties. * WHEN...From 1 AM to 6 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. && $$
526 WWUS71 KCAR 280402 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 1202 AM EDT Fri May 28 2021 MEZ002-005-006-281000- /O.CON.KCAR.FZ.W.0001.210528T0500Z-210528T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 1202 AM EDT Fri May 28 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Sub-freezing temperatures around 31 expected. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...Until 6 AM EDT early this morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-011-031-032-281000- /O.CON.KCAR.FR.Y.0002.210528T0500Z-210528T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 1202 AM EDT Fri May 28 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Temperatures around 32 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Northern Washington and Southern Piscataquis Counties. * WHEN...Until 6 AM EDT early 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. && $$
444 WWUS71 KCAR 280642 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 242 AM EDT Fri May 28 2021 MEZ002-005-006-281000- /O.CON.KCAR.FZ.W.0001.000000T0000Z-210528T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 242 AM EDT Fri May 28 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Sub-freezing temperatures around 31. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...Until 6 AM EDT early this morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-011-031-032-281000- /O.CON.KCAR.FR.Y.0002.000000T0000Z-210528T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 242 AM EDT Fri May 28 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Temperatures around 32 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Northern Washington and Southern Piscataquis Counties. * WHEN...Until 6 AM EDT early 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. && $$
054 WWUS71 KCAR 281003 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 603 AM EDT Fri May 28 2021 MEZ002-005-006-281815- /O.EXP.KCAR.FZ.W.0001.000000T0000Z-210528T1000Z/ /O.NEW.KCAR.FZ.W.0002.210529T0500Z-210529T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 603 AM EDT Fri May 28 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... ...FREEZE WARNING HAS EXPIRED... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...Northeast Aroostook, Northern Penobscot and Southeast Aroostook Counties. * WHEN...From 1 AM to 6 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-011-031-032-281815- /O.EXP.KCAR.FR.Y.0002.000000T0000Z-210528T1000Z/ /O.NEW.KCAR.FR.Y.0003.210529T0500Z-210529T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 603 AM EDT Fri May 28 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... ...FROST ADVISORY HAS EXPIRED... * WHAT...Temperatures around 34 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Southern Piscataquis and Northern Washington Counties. * WHEN...From 1 AM to 6 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 Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 8:12 PM EDT | Special Weather Statement | CAR | Aroostook | 33 min |
| May 26, 8:37 PM EDT | Special Weather Statement | CAR | Piscataquis | 23 min |
| May 26, 9:04 PM EDT | Special Weather Statement | CAR | Piscataquis | 26 min |
| May 26, 9:30 PM EDT | Special Weather Statement | CAR | 30 min | |
| May 26, 9:58 PM EDT | Special Weather Statement | CAR | 32 min | |
| May 27, 2:49 AM EDT | Freeze Warning | CAR | Aroostook, Penobscot | 27 hr |
Nearby
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.