Alert archive / Maine / Snow Squall Warnings in 2021
Snow Squall Warning 2, NWS Caribou, ME
NWS Caribou, ME issued this snow squall warning at Mar 1, 2021, 9:35 PM EST for Aroostook County, Penobscot County, Piscataquis County, Maine. It was in force for 70 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Mar 1, 2021, 9:35 PM EST (02:35 UTC)
- Expired
- Mar 1, 2021, 10:45 PM EST
- In force
- 70 min
- Issued by
- NWS Caribou, ME
- Area
- Storm-based polygon
Counties Aroostook County, ME, Penobscot County, ME, Piscataquis County, ME
The radar
The Caribou radar (KCBW), 68 km from the middle of the area, began a volume at 02:37 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, 2.6 hours before the alert went out and 80 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
- 532 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- -88 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
593
WWUS51 KCAR 020236
SQWCAR
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Snow Squall Warning
National Weather Service Caribou ME
935 PM EST Mon Mar 1 2021
MEC003-019-021-020345-
/O.NEW.KCAR.SQ.W.0002.210302T0235Z-210302T0345Z/
Piscataquis ME-Aroostook ME-Penobscot ME-
935 PM EST Mon Mar 1 2021
The National Weather Service in Caribou Maine has issued a
* Snow Squall Warning for...
Northeastern Piscataquis County in north central Maine...
East central Aroostook County in northern Maine...
North central Penobscot County in east central Maine...
* Until 1045 PM EST.
* At 935 PM EST, a dangerous snow squall was located along a line
extending from 12 miles east of Churchill Dam to 7 miles north of
Houlton, moving south at 10 mph.
HAZARD...Near whiteout conditions. Zero visibility in snow and
blowing snow. Wind gusts greater than 35 mph.
SOURCE...Radar indicated.
IMPACT...Dangerous life-threatening travel.
This includes the following highways...
Interstate 95 between mile markers 281 and 304.
US Highway 1 between Cary and Littleton.
State Highway 11 near Knowles Corner.
Locations impacted include...
Houlton, Hodgdon, Smyrna, Amity, Mount Chase, Oxbow, Dudley Township,
Moosehorn Crossing, Cary Plantation, Smyrna Mills, Littleton,
Linneus, Monticello, Oakfield, New Limerick, Ludlow, Merrill, Cary,
Dyer Brook and Hersey.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Travel is not advised during this dangerous snow squall. Rapid
visibility reduction and potentially icy roads are likely to lead to
accidents. Consider delaying travel until the squall passes your
location. If traveling, pull off to a safe location and turn your
headlights on.
&&
LAT...LON 4630 6918 4595 6779 4629 6780 4661 6910
TIME...MOT...LOC 0235Z 002DEG 7KT 4654 6903 4623 6783
$$
CBThe office that day
Everything else NWS Caribou, ME issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 1, 8:46 PM EST | Snow Squall Warning | CAR | Aroostook | 44 min |
| Mar 2, 10:20 AM EST | Wind Chill Advisory | CAR | Aroostook, Penobscot, Piscataquis, Somerset | 5 hr |
| Mar 2, 3:03 PM EST | Heavy Freezing Spray Advisory | CAR | 15 hr |
Nearby
Snow Squall Warnings in Maine, 2021Every snow squall 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.