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Frost Advisory 0003
Issued by the Caribou Forecast Office

Action Issued Starts Expiration
New 2026-05-22 05:34:37 2026-05-22 23:00:00 2026-05-23 06:00:00
Area Extended 2026-05-22 12:35:22 2026-05-22 23:00:00 2026-05-23 06:00:00
Continued 2026-05-22 12:35:22 2026-05-22 23:00:00 2026-05-23 06:00:00
Expired 2026-05-23 06:08:37 2026-05-23 06:00:00


Action: New
Issued At: 2026-05-22 05:34:37

220 
WWUS71 KCAR 221034
NPWCAR

URGENT - WEATHER MESSAGE
National Weather Service Caribou ME
634 AM EDT Fri May 22 2026

MEZ002-005-006-010-221845-
/O.EXP.KCAR.FR.Y.0002.000000T0000Z-260522T1100Z/
/O.NEW.KCAR.FR.Y.0003.260523T0400Z-260523T1100Z/
Northeast Aroostook-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-
Including the cities of Millinocket, Houlton, Smyrna Mills, East
Millinocket, Presque Isle, Van Buren, Patten, Hodgdon, Sherman,
Monson, Mars Hill, Ashland, Blanchard, Medway, Greenville, and
Caribou
634 AM EDT Fri May 22 2026

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EDT 
SATURDAY...

* WHAT...Temperatures in the low to mid 30s will result in frost 
  formation.

* WHERE...Central Piscataquis, Northern Penobscot, Southeast 
  Aroostook, and Northeast Aroostook Counties.

* WHEN...From midnight tonight to 7 AM EDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

MEZ011-031-032-221145-
/O.EXP.KCAR.FR.Y.0002.000000T0000Z-260522T1100Z/
Central Penobscot-Southern Piscataquis-Northern Washington-
Including the cities of Howland, Springfield, Guilford,
Topsfield, Lincoln, Vanceboro, Milo, Dover-Foxcroft, and Danforth
634 AM EDT Fri May 22 2026

...FROST ADVISORY WILL EXPIRE AT 7 AM EDT THIS MORNING...

$$

MWS


Action: Area Extended
Issued At: 2026-05-22 12:35:22

469 
WWUS71 KCAR 221735
NPWCAR

URGENT - WEATHER MESSAGE
National Weather Service Caribou ME
135 PM EDT Fri May 22 2026

MEZ011-031-032-230700-
/O.EXA.KCAR.FR.Y.0003.260523T0400Z-260523T1100Z/
Central Penobscot-Southern Piscataquis-Northern Washington-
Including the cities of Guilford, Milo, Vanceboro, Danforth,
Lincoln, Springfield, Dover-Foxcroft, Topsfield, and Howland
135 PM EDT Fri May 22 2026

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EDT 
SATURDAY...

* WHAT...Temperatures in the lower to middle 30s will result in 
  frost formation.

* WHERE...Southern Piscataquis, Northern Washington, and Central 
  Penobscot Counties.

* WHEN...From midnight tonight to 7 AM EDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

MEZ002-005-006-010-230700-
/O.CON.KCAR.FR.Y.0003.260523T0400Z-260523T1100Z/
Northeast Aroostook-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-
Including the cities of Mars Hill, Millinocket, Medway, Presque
Isle, Houlton, Sherman, East Millinocket, Smyrna Mills,
Greenville, Blanchard, Hodgdon, Van Buren, Caribou, Patten,
Monson, and Ashland
135 PM EDT Fri May 22 2026

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM 
EDT SATURDAY...

* WHAT...Temperatures in the lower 30s will result in frost 
  formation. Temperatures may drop below freezing in colder valley 
  locations for a brief period of time shortly before daybreak.

* WHERE...Central Piscataquis, Northern Penobscot, Southeast 
  Aroostook, and Northeast Aroostook Counties.

* WHEN...From midnight tonight to 7 AM EDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

21


Action: Continued
Issued At: 2026-05-22 12:35:22

469 
WWUS71 KCAR 221735
NPWCAR

URGENT - WEATHER MESSAGE
National Weather Service Caribou ME
135 PM EDT Fri May 22 2026

MEZ011-031-032-230700-
/O.EXA.KCAR.FR.Y.0003.260523T0400Z-260523T1100Z/
Central Penobscot-Southern Piscataquis-Northern Washington-
Including the cities of Guilford, Milo, Vanceboro, Danforth,
Lincoln, Springfield, Dover-Foxcroft, Topsfield, and Howland
135 PM EDT Fri May 22 2026

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM EDT 
SATURDAY...

* WHAT...Temperatures in the lower to middle 30s will result in 
  frost formation.

* WHERE...Southern Piscataquis, Northern Washington, and Central 
  Penobscot Counties.

* WHEN...From midnight tonight to 7 AM EDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

MEZ002-005-006-010-230700-
/O.CON.KCAR.FR.Y.0003.260523T0400Z-260523T1100Z/
Northeast Aroostook-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-
Including the cities of Mars Hill, Millinocket, Medway, Presque
Isle, Houlton, Sherman, East Millinocket, Smyrna Mills,
Greenville, Blanchard, Hodgdon, Van Buren, Caribou, Patten,
Monson, and Ashland
135 PM EDT Fri May 22 2026

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM 
EDT SATURDAY...

* WHAT...Temperatures in the lower 30s will result in frost 
  formation. Temperatures may drop below freezing in colder valley 
  locations for a brief period of time shortly before daybreak.

* WHERE...Central Piscataquis, Northern Penobscot, Southeast 
  Aroostook, and Northeast Aroostook Counties.

* WHEN...From midnight tonight to 7 AM EDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive 
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

21


Action: Expired
Issued At: 2026-05-23 06:08:37

087 
WWUS71 KCAR 231108
NPWCAR

URGENT - WEATHER MESSAGE
National Weather Service Caribou ME
708 AM EDT Sat May 23 2026

MEZ002-005-006-010-011-031-032-231215-
/O.EXP.KCAR.FR.Y.0003.000000T0000Z-260523T1100Z/
Northeast Aroostook-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-Central Penobscot-Southern Piscataquis-
Northern Washington-
Including the cities of Millinocket, Dover-Foxcroft, Milo,
Springfield, Medway, Van Buren, Vanceboro, Topsfield, Mars Hill,
Ashland, Greenville, East Millinocket, Patten, Howland, Sherman,
Guilford, Monson, Danforth, Blanchard, Presque Isle, Hodgdon,
Caribou, Houlton, Lincoln, and Smyrna Mills
708 AM EDT Sat May 23 2026

...FROST ADVISORY HAS EXPIRED...

As temperatures warm this morning, the frost advisory has been 
allowed to expire.

$$

AES



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