Alert archive / Maine / Winter Storm Warnings in 2021
Winter Storm Warning 5, NWS Caribou, ME
NWS Caribou, ME issued this winter storm warning at Feb 24, 2021, 3:19 PM EST for Piscataquis County, Somerset County, Maine. It took effect at Feb 24, 2021, 6:00 PM EST. It was in force for 13 hr. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 24, 2021, 3:19 PM EST (20:19 UTC)
- In effect from
- Feb 24, 2021, 6:00 PM EST
- Expired
- Feb 25, 2021, 6:53 AM EST
- In force
- 13 hr
- Issued by
- NWS Caribou, ME
Counties Piscataquis County, ME, Somerset County, ME
The radar
The Caribou radar (KCBW), 146 km from the middle of the area, began a volume at 20:23 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 25, 5:25 AM EST | SNOW 6 | Jackman, ME | VIA FACEBOOK... RELAYED BY WFO CAR. |
| Feb 25, 6:00 AM EST | SNOW 2 | Greenville, ME |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Caribou, ME (KCAR), launched 12:00Z, 8.3 hours before the alert went out and 182 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
- 765 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
833 WWUS41 KCAR 242019 WSWCAR URGENT - WINTER WEATHER MESSAGE National Weather Service Caribou ME 319 PM EST Wed Feb 24 2021 MEZ003-004-250430- /O.UPG.KCAR.WW.Y.0006.210224T2300Z-210225T1100Z/ /O.NEW.KCAR.WS.W.0005.210224T2300Z-210225T1100Z/ Northern Somerset-Northern Piscataquis- Including the cities of Baker Lake, Billy-Jack Depot, Baxter St Park, Chamberlain Lake, Churchill Dam, and Mount Katahdin 319 PM EST Wed Feb 24 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 6 AM EST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 inches expected. * WHERE...Northern Somerset and Northern Piscataquis Counties. * WHEN...Until 6 AM EST Thursday. * ADDITIONAL DETAILS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel extremely dangerous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ LaFlash/Maloit
5 follow-up statements
109 WWUS41 KCAR 242028 WSWCAR URGENT - WINTER WEATHER MESSAGE National Weather Service Caribou ME 328 PM EST Wed Feb 24 2021 MEZ003-004-250430- /O.CON.KCAR.WS.W.0005.210224T2300Z-210225T1100Z/ Northern Somerset-Northern Piscataquis- Including the cities of Baker Lake, Billy-Jack Depot, Baxter St Park, Chamberlain Lake, Churchill Dam, and Mount Katahdin 328 PM EST Wed Feb 24 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 inches expected. * WHERE...Northern Somerset and Northern Piscataquis Counties. * WHEN...Until 6 AM EST Thursday. * ADDITIONAL DETAILS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel extremely dangerous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ MEZ001-002-005-006-250430- /O.NEW.KCAR.WW.Y.0007.210224T2300Z-210225T1100Z/ Northwest Aroostook-Northeast Aroostook-Northern Penobscot- Southeast Aroostook- Including the cities of Allagash, Clayton Lake, Madawaska, Fort Kent, Frenchville, Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 328 PM EST Wed Feb 24 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM EST THURSDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches expected. * WHERE...Northwest Aroostook, Northeast Aroostook, Northern Penobscot and Southeast Aroostook Counties. * WHEN...Until 6 AM EST Thursday. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$
971 WWUS41 KCAR 250408 WSWCAR URGENT - WINTER WEATHER MESSAGE National Weather Service Caribou ME 1108 PM EST Wed Feb 24 2021 MEZ003-004-251100- /O.CON.KCAR.WS.W.0005.000000T0000Z-210225T1100Z/ Northern Somerset-Northern Piscataquis- Including the cities of Baker Lake, Billy-Jack Depot, Baxter St Park, Chamberlain Lake, Churchill Dam, and Mount Katahdin 1108 PM EST Wed Feb 24 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 9 inches expected. * WHERE...Northern Somerset and Northern Piscataquis Counties. * WHEN...Until 6 AM EST Thursday. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel extremely dangerous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ MEZ001-002-005-006-251100- /O.CON.KCAR.WW.Y.0007.000000T0000Z-210225T1100Z/ Northwest Aroostook-Northeast Aroostook-Northern Penobscot- Southeast Aroostook- Including the cities of Allagash, Clayton Lake, Madawaska, Fort Kent, Frenchville, Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 1108 PM EST Wed Feb 24 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST THURSDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches expected. * WHERE...Northwest Aroostook, Northeast Aroostook, Northern Penobscot and Southeast Aroostook Counties. * WHEN...Until 6 AM EST Thursday. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ Hewitt
300 WWUS41 KCAR 250808 WSWCAR URGENT - WINTER WEATHER MESSAGE National Weather Service Caribou ME 308 AM EST Thu Feb 25 2021 MEZ003-004-251100- /O.CON.KCAR.WS.W.0005.000000T0000Z-210225T1100Z/ Northern Somerset-Northern Piscataquis- Including the cities of Baker Lake, Billy-Jack Depot, Baxter St Park, Chamberlain Lake, Churchill Dam, and Mount Katahdin 308 AM EST Thu Feb 25 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches for a storm total of 5 to 9 inches. * WHERE...Northern Somerset and Northern Piscataquis Counties. * WHEN...Until 6 AM EST early this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel extremely dangerous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ MEZ001-002-005-006-251100- /O.CON.KCAR.WW.Y.0007.000000T0000Z-210225T1100Z/ Northwest Aroostook-Northeast Aroostook-Northern Penobscot- Southeast Aroostook- Including the cities of Allagash, Clayton Lake, Madawaska, Fort Kent, Frenchville, Presque Isle, Caribou, Van Buren, Mars Hill, Ashland, Millinocket, East Millinocket, Patten, Medway, Houlton, Hodgdon, Sherman, and Smyrna Mills 308 AM EST Thu Feb 25 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST EARLY THIS MORNING... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches for a storm total of 3 to 6 inches. * WHERE...Northeast Aroostook, Northwest Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...Until 6 AM EST early this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ Sinko
848 WWUS41 KCAR 251003 WSWCAR URGENT - WINTER WEATHER MESSAGE National Weather Service Caribou ME 503 AM EST Thu Feb 25 2021 MEZ003-251115- /O.CAN.KCAR.WS.W.0005.000000T0000Z-210225T1100Z/ Northern Somerset- Including the cities of Baker Lake and Billy-Jack Depot 503 AM EST Thu Feb 25 2021 ...WINTER STORM WARNING IS CANCELLED... Steady snow is tapering off to snow showers which will continue for the next several hours before ending. Additional snowfall up to one half inch possible. $$ MEZ001-251115- /O.CAN.KCAR.WW.Y.0007.000000T0000Z-210225T1100Z/ Northwest Aroostook- Including the cities of Allagash, Clayton Lake, Madawaska, Fort Kent, and Frenchville 503 AM EST Thu Feb 25 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Steady snow is tapering off to snow showers which will continue for the next several hours before ending. Additional snowfall up to one half inch possible. $$ MEZ004-251200- /O.EXT.KCAR.WS.W.0005.000000T0000Z-210225T1200Z/ Northern Piscataquis- Including the cities of Baxter St Park, Chamberlain Lake, Churchill Dam, and Mount Katahdin 503 AM EST Thu Feb 25 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to two inches for a storm total of 5 to 9 inches. * WHERE...Northern Piscataquis County. * WHEN...Until 7 AM EST this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for snow means severe winter weather conditions will make travel extremely dangerous. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ MEZ002-005-006-251200- /O.EXT.KCAR.WW.Y.0007.000000T0000Z-210225T1200Z/ 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 503 AM EST Thu Feb 25 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 AM EST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to two inches for a storm total of 3 to 6 inches. * WHERE...Northeast Aroostook, Southeast Aroostook and Northern Penobscot Counties. * WHEN...Until 7 AM EST this morning. * ADDITIONAL DETAILS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means periods of snow will cause primarily travel difficulties. Expect snow covered roads and limited visibilities, and use caution while driving. The latest road conditions for Maine can be obtained by going to newengland511.org. && $$ Sinko
858 WWUS41 KCAR 251153 WSWCAR URGENT - WINTER WEATHER MESSAGE National Weather Service Caribou ME 653 AM EST Thu Feb 25 2021 MEZ004-251300- /O.CAN.KCAR.WS.W.0005.000000T0000Z-210225T1200Z/ Northern Piscataquis- Including the cities of Baxter St Park, Chamberlain Lake, Churchill Dam, and Mount Katahdin 653 AM EST Thu Feb 25 2021 ...WINTER STORM WARNING IS CANCELLED... The snow is tapering to snow showers which will persist for a few more hours. Up to one half an inch is possible. Road conditions will improve today. $$ MEZ002-005-006-251300- /O.CAN.KCAR.WW.Y.0007.000000T0000Z-210225T1200Z/ 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 653 AM EST Thu Feb 25 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... The snow is tapering to snow showers which will persist for a few more hours. Up to one half an inch is possible. Road conditions will improve today. $$ Sinko
The office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 3:24 AM EST | Gale Warning | CAR | 43 hr | |
| Feb 24, 3:24 AM EST | Small Craft Advisory | CAR | 55 hr | |
| Feb 24, 3:37 AM EST | Winter Weather Advisory | CAR | Piscataquis, Somerset | 12 hr |
| Feb 24, 3:28 PM EST | Winter Weather Advisory | CAR | Aroostook, Penobscot | 15 hr |
Nearby
Winter Storm Warnings in Maine, 2021Every winter storm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.