Alert archive / Maine / Frost Advisories in 2021
Frost Advisory 3, NWS Caribou, ME
NWS Caribou, ME issued this frost advisory at May 28, 2021, 6:03 AM EDT for Penobscot County, Piscataquis County, Washington County, Maine. It took effect at May 29, 2021, 1:00 AM EDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- May 28, 2021, 6:03 AM EDT (10:03 UTC)
- In effect from
- May 29, 2021, 1:00 AM EDT
- Expired
- May 29, 2021, 5:52 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 10:07 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, 10.1 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1796 m above ground
- 0-6 km bulk shear
- 118 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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. && $$ MEZ010-011-031-032-281815- /O.EXP.KCAR.FR.Y.0002.000000T0000Z-210528T1000Z/ /O.NEW.KCAR.FR.Y.0003.210529T0500Z-210529T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 603 AM EDT Fri May 28 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... ...FROST ADVISORY HAS EXPIRED... * WHAT...Temperatures around 34 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Southern Piscataquis and Northern Washington Counties. * WHEN...From 1 AM to 6 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
5 follow-up statements
021 WWUS71 KCAR 281020 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 620 AM EDT Fri May 28 2021 MEZ002-005-006-281830- /O.CON.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 620 AM EDT Fri May 28 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot 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. && $$ MEZ010-011-031-032-281830- /O.CON.KCAR.FR.Y.0003.210529T0500Z-210529T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 620 AM EDT Fri May 28 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... * WHAT...Temperatures around 34 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Northern Washington and Southern Piscataquis Counties. * WHEN...From 1 AM to 6 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
702 WWUS71 KCAR 281633 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 1233 PM EDT Fri May 28 2021 MEZ002-005-006-290045- /O.CON.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 1233 PM EDT Fri May 28 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot 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. && $$ MEZ010-011-031-032-290045- /O.CON.KCAR.FR.Y.0003.210529T0500Z-210529T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 1233 PM EDT Fri May 28 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 6 AM EDT SATURDAY... * WHAT...Temperatures around 34 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Northern Washington and Southern Piscataquis Counties. * WHEN...From 1 AM to 6 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
509 WWUS71 KCAR 290229 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 1029 PM EDT Fri May 28 2021 MEZ002-005-006-291000- /O.CON.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 1029 PM EDT Fri May 28 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures around 30 expected. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot 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. && $$ MEZ010-011-031-032-291000- /O.CON.KCAR.FR.Y.0003.210529T0500Z-210529T1000Z/ Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- Including the cities of Greenville, Monson, Blanchard, Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 1029 PM EDT Fri May 28 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT SATURDAY... * WHAT...Temperatures around 34 will result in frost formation. * WHERE...Central Piscataquis, Central Penobscot, Northern Washington and Southern Piscataquis Counties. * WHEN...From 1 AM to 6 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
295 WWUS71 KCAR 290710 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 310 AM EDT Sat May 29 2021 MEZ011-031-032-290815- /O.CAN.KCAR.FR.Y.0003.000000T0000Z-210529T1000Z/ Central Penobscot-Southern Piscataquis-Northern Washington- Including the cities of Lincoln, Howland, Springfield, Dover-Foxcroft, Milo, Guilford, Danforth, Vanceboro, and Topsfield 310 AM EDT Sat May 29 2021 ...FROST ADVISORY IS CANCELLED... Cloud cover from the approaching weather system is keeping temperatures warmer this morning. Temperatures will remain well above freezing and frost is unlikely. $$ MEZ002-005-006-291000- /O.CON.KCAR.FZ.W.0002.000000T0000Z-210529T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 310 AM EDT Sat May 29 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Sub-freezing temperatures around 32. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...Until 6 AM EDT early this morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or occurring. Take steps now to protect tender plants from the cold. && $$ MEZ010-291000- /O.CON.KCAR.FR.Y.0003.000000T0000Z-210529T1000Z/ Central Piscataquis- Including the cities of Greenville, Monson, and Blanchard 310 AM EDT Sat May 29 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Temperatures around 36 will result in frost formation. * WHERE...Central Piscataquis County. * 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. && $$ Sinko
848 WWUS71 KCAR 290952 NPWCAR URGENT - WEATHER MESSAGE National Weather Service Caribou ME 552 AM EDT Sat May 29 2021 MEZ002-005-006-291100- /O.CAN.KCAR.FZ.W.0002.000000T0000Z-210529T1000Z/ Northeast Aroostook-Northern Penobscot-Southeast Aroostook- Including the cities of Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 552 AM EDT Sat May 29 2021 ...FREEZE WARNING IS CANCELLED... $$ MEZ010-291100- /O.CAN.KCAR.FR.Y.0003.000000T0000Z-210529T1000Z/ Central Piscataquis- Including the cities of Greenville, Monson, and Blanchard 552 AM EDT Sat May 29 2021 ...FROST ADVISORY IS CANCELLED... $$ Sinko
The office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 6:03 AM EDT | Freeze Warning | CAR | Aroostook, Penobscot | 24 hr |
| May 28, 3:12 PM EDT | Small Craft Advisory | CAR | 51 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.