Winter Storm Ronnie

URGENT - WINTER WEATHER MESSAGE

National Weather Service Caribou ME

949 PM EDT Fri Mar 22 2024

MEZ001>006-010-011-031-032-231000-

/O.CON.KCAR.WS.W.0004.240323T1000Z-240324T1200Z/

Northwest Aroostook-Northeast Aroostook-Northern Somerset-

Northern Piscataquis-Northern Penobscot-Southeast Aroostook-

Central Piscataquis-Central Penobscot-Southern Piscataquis-

Northern Washington-

Including the cities of Madawaska, Chamberlain Lake, Greenville,

Sherman, Smyrna Mills, Topsfield, Hodgdon, Billy-Jack Depot,

Dover-Foxcroft, Churchill Dam, Guilford, Presque Isle, Clayton

Lake, Millinocket, Blanchard, East Millinocket, Lincoln, Baxter

St Park, Danforth, Baker Lake, Howland, Patten, Milo, Monson,

Mars Hill, Allagash, Mount Katahdin, Fort Kent, Springfield,

Medway, Frenchville, Caribou, Ashland, Vanceboro, Houlton, and

Van Buren

949 PM EDT Fri Mar 22 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SATURDAY TO 8 AM

EDT SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 15

  and 21 inches, except for Northwest Aroostook County where 9 to 17

  inches is expected. Winds gusting as high as 35 mph.

* WHERE...Portions of Central Highlands, Far Eastern, Far Northern,

  North Woods, and Penobscot Valley Maine

* WHEN...From 6 AM Saturday to 8 AM EDT Sunday.

* IMPACTS...Travel could be very difficult to impossible. Areas of

  blowing snow could significantly reduce visibility. Gusty winds

  could bring down tree branches.

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE

National Weather Service Caribou ME

949 PM EDT Fri Mar 22 2024

MEZ029-030-231000-

/O.CON.KCAR.WW.Y.0012.240323T0800Z-240324T0900Z/

Coastal Hancock-Coastal Washington-

Including the cities of Eastport, Bar Harbor, Perry, Ellsworth,

Orland, Bucksport, Machias, Castine, and Cherryfield

949 PM EDT Fri Mar 22 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SATURDAY TO 5

AM EDT SUNDAY...

* WHAT...Mixed precipitation expected. Total snow and sleet

  accumulations between 4 and 6 inches and ice accumulations up to

  one half of an inch. Winds gusting as high as 35 mph.

* WHERE...Coastal Hancock and Coastal Washington Counties.

* WHEN...From 4 AM Saturday to 5 AM EDT Sunday.

* IMPACTS...Power outages and tree damage are possible due to the

  ice. Travel could be very difficult. Gusty winds could bring down

  tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or

freezing rain will cause travel difficulties. Expect slippery roads

and limited visibilities, and use caution while driving.

The latest road conditions for Maine can be obtained by going to

newengland511.org.

&&

$$

Clark/Norcross/Bloomer

10:38 PM ADT Friday 22 March 2024

Significant winter storm this weekend.

Location: Prince County.

Remarks: A developing storm will affect the region starting Saturday afternoon. There is the possibility of 15 or more cm of snowfall before it changes to rain late Saturday night and then back to snow Sunday morning before ending. Freezing rain is also likely Saturday night.

Additional information will be provided as the details become more certain.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to PEstorm@ec.gc.ca or tweet reports using #PEStorm.

10:33 PM ADT Friday 22 March 2024

Rain, at times heavy, is expected.

Total rainfall: up to 30 mm.

Locations: Digby, Yarmouth and Shelburne counties.

Time span: beginning Saturday evening and ending Sunday morning.

Localized flooding in low-lying areas is possible.

Rainfall warnings are issued when significant rainfall is expected.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NSstorm@ec.gc.ca or tweet reports using #NSStorm.

10:22 PM ADT Friday 22 March 2024

Mixture of winter weather this weekend could impact travel.

Locations: Moncton and Southeast New Brunswick.

Remarks: Snow will develop Saturday afternoon and change through freezing rain to rain Saturday night. 5 to 10 cm of snowfall is possible before the changeover. 25 mm of rainfall is also possible by early Sunday morning.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NBstorm@ec.gc.ca or tweet reports using #NBStorm.

10:19 PM ADT Friday 22 March 2024

Rain, at times heavy, is expected.

Total rainfall: up to 40 mm.

Locations: areas near the Fundy Coast.

Time span: beginning Saturday evening and ending early Sunday morning.

Remarks: Snow will develop near noon on Saturday then transition to rain by the evening. 5 to 10 cm of snowfall is possible before the changeover. There is also a risk of freezing rain in the evening and again early Sunday morning.

Localized flooding in low-lying areas is possible.

Rainfall warnings are issued when significant rainfall is expected.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NBstorm@ec.gc.ca or tweet reports using #NBStorm.

10:18 PM ADT Friday 22 March 2024

Snowfall with total amounts of 20 to 25 cm is expected.

Locations: Edmundston and Madawaska County and Campbellton and Restigouche County.

Time span: beginning Saturday afternoon and ending by early Sunday morning.

Rapidly accumulating snow could make travel difficult over some locations. Visibility may be suddenly reduced at times in heavy snow.

Snowfall warnings are issued when significant snowfall is expected.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NBstorm@ec.gc.ca or tweet reports using #NBStorm.

10:16 PM ADT Friday 22 March 2024

Hazardous winter conditions are expected.

Total snowfall amounts: 15 to 25 cm.

Freezing rain duration: 3 to 6 hours.

Locations: portions of southern and eastern New Brunswick.

Time span: beginning near noon Saturday and ending early Sunday morning.

Remarks: Snow, heavy at times, will develop around noon Saturday then become mixed with or change to freezing rain and rain Saturday night then changing back to snow before ending early Sunday morning.

Ice build-up may cause tree branches to break.

Prepare for quickly changing and deteriorating travel conditions.

Winter storm warnings are issued when multiple types of severe winter weather are expected to occur together.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NBstorm@ec.gc.ca or tweet reports using #NBStorm.

Flood Watch

National Weather Service Caribou ME

906 PM EDT Fri Mar 22 2024

MEZ029-030-230915-

/O.CON.KCAR.FA.A.0002.240323T2100Z-240324T0900Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Coastal Hancock-Coastal Washington-

Including the cities of Eastport, Bar Harbor, Perry, Ellsworth,

Orland, Bucksport, Machias, Castine, and Cherryfield

906 PM EDT Fri Mar 22 2024

...FLOOD WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH

LATE SATURDAY NIGHT...

* WHAT...Heavy rainfall may lead to localized flooding.

* WHERE...A portion of Coastal DownEast Maine, including the

  following areas, Coastal Hancock and Coastal Washington.

* WHEN...From Saturday afternoon through late Saturday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,

  creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...

  - Total rainfall amounts of 2 to 2.50 inches are possible along

    the Downeast coast. The heaviest rainfall rates are expected

    Saturday evening through late Saturday night. However,

    uncertainty with precipitation type still exists. This could

    lead to more sleet, freezing rain and snow which would

    diminish rain totals and lessen the flood threat.

  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood

Warnings. Those living in areas prone to flooding should be prepared

to take action should flooding develop.

&&

$$

Bloomer

000

FXUS61 KCAR 222317

AFDCAR

Area Forecast Discussion

National Weather Service Caribou ME

717 PM EDT Fri Mar 22 2024

.SYNOPSIS...

Low pressure approaches Saturday, crosses the Gulf of Maine

Saturday night, then exits across the Maritimes Sunday. High

pressure crosses the region Monday through Tuesday. A warm front

crosses the region Wednesday.

&&

.NEAR TERM /THROUGH SATURDAY/...

7 PM Update...Forecast remains on track with some high clouds

across the south and a clear sky over the north. Other than some

minor adjustments to temps, no changes were needed.

High pressure remains in control of the weather through the rest

of the afternoon and this evening. This will make for dry

conditions and diminishing winds. Low temperatures tonight will

range from the single digits above zero in the North Woods to

the lower 20s at the Downeast Coast.

Attention turns to a powerful storm that will impact Northern

and Eastern Maine beginning early Saturday morning. This system

will track up the Atlantic seaboard on Saturday and impact

Northern and Eastern Maine into Saturday night. This system will

have a connection to the tropics, so there will be lots of

available moisture. There will be multiple significant hazards

with this system.

Thermal profiles will be cold enough for precipitation to begin

as snow everywhere. Expect snow to break out from around

Greenville to Bucksport around or just before daybreak Saturday.

The snow will spread northeastward and reach the Saint John

Valley by the early afternoon. Models have trended colder

compared to previous runs. Thus, areas north of about Route 9

will remain snow, which will become heavy at times. Winter Storm

Warnings will go into effect Saturday morning for these areas.

Southeasterly winds will bring in warmer air south of about

Route 1 for Saturday afternoon, allowing precipitation to mix

with and change to rain there. Between Route 1 and Route 9, a

zone of mixed snow, sleet, and freezing rain will develop late

Saturday afternoon. This will be due to warm air moving in

aloft, but temperatures remaining cold at the surface. This mix

could reach Bangor, but it will be close based on current

guidance. A small shift in the transition zone will mean

significant differences for snow or ice accumulations, so will

have to monitor the exact progression.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...

Low pressure will track across the Gulf of Maine and southeast

portions of the forecast area early Saturday night, reaching

the Gulf of Saint Lawrence late. Precipitation will be heavy at

times across the region early Saturday night, then diminish

late in the wake of the system. Based on critical thickness

values, expect snow across northern and central portions of the

forecast area. Snowfall rates could exceed 2 inches per hour

Saturday night into the early morning hours of Sunday. Snow or a

wintry mix is expected across interior Downeast areas early

Saturday night, with mostly rain along the Downeast coast.

However, uncertainty still exists regarding the inland extent of

the coastal front which would impact precipitation types.

Colder air will be drawn across the region in the wake of the

low. This will allow the wintry mix and rain to transition back

to snow Downeast before diminishing late. Storm total snow

accumulations across northern and central areas will generally

range from 16 to 21 inches. Locally greater totals could occur

with more persistent snow bands. Slightly lower snow

accumulations will occur across extreme northwest areas furthest

from the storm. Storm total snow accumulations across interior

Downeast areas will generally range from 10 to 16 inches, with

the lower totals closer to the coast where mixed precipitation

is more likely. Snow accumulations along the Downeast coast will

generally range from 4 to 6 inches, with the lower totals

closer to the immediate coast. A wintry mix of snow, sleet and

rain is also expected along the Downeast coast though amounts

are uncertain. Gusty winds will allow for blowing snow Saturday

night into Sunday. Could still have a slight chance/chance of

snow showers early Sunday along with partly sunny/mostly cloudy

skies. High pressure then builds toward the region later Sunday

with mostly/partly sunny skies. High pressure then ridges across

the region Sunday night through Monday. Generally expect partly

cloudy skies Sunday night through Monday. Temperatures will be

at slightly below normal levels Sunday/Monday.......