An ice jam on the Aroostook River near Caribou led to flooding along a portion of Grimes Road resulting in closure of the road. The road was closed from the evening of the 5th into the afternoon of the 9th.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CAR wrote it up.
An ice jam on the Aroostook River near Caribou led to flooding along a portion of Grimes Road resulting in closure of the road. The road was closed from the evening of the 5th into the afternoon of the 9th. The waters receded once the jam released allowing the road to re-open.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Caribou, ME wrote its last area forecast discussion before the first event at Apr 5, 3:46 PM EST, 2 hours 14 minutes earlier.
Area Forecast Discussion National Weather Service Caribou ME 446 PM EDT Sun Apr 5 2020 .SYNOPSIS... A cold front will cross the region tonight through early Monday. Another cold front will cross the region Monday night then stall across the Gulf of Maine Tuesday. Low pressure will track south of the region Wednesday. Another low will cross the region Thursday then exit across the Maritimes Friday. && .NEAR TERM /THROUGH MONDAY/... Cold front approaching from Quebec province will cross the region this evening through early tonight. The front will be accompanied by a band of showers through early this evening. Will maintain mention of likely (numerous) POPs early this evening for much of the region as the front crosses. Moisture is limited and not expecting much more than a tenth of an inch of QPF most areas in any showers. A few wet snow flakes could mix in across the North before showers end but any snow showers will be negligible at best. The front will clear much of the forecast area by daybreak, followed by clearing skies overnight. Lows by morning will only fall into the mid 20s to around 30 north and mid 30s central and downeast. On Monday, expect the most sunshine to be found across Downeast areas. Across the north, expect a mainly sunny start, followed by increasing clouds by afternoon, as upper level energy rotates around the upper low that will be centered near the New Foundland/Labrador region. Although moisture will be limited, steepening lapse rates will result in mainly cloudy skies Monday afternoon across the North, with scatterd showers possible, especially from the Katahdin region on North. With fairly deep mixed layer, expect Northwest wind gusts to 30 to 35 mph at times Monday afternoon. Highs on Monday will be limited to the low to mid 40s across the north due to cold advection and more in the way of cloud cover, with upper 40s to around 50 for Downeast areas. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/... A cold front will move south across the region Monday night through early Tuesday. Expect mostly/partly cloudy skies across northern areas Monday night, along with the slight chance of evening snow/rain showers. Mostly clear/partly cloudy skies are expected Downeast Monday night. The cold front should stall across the Gulf of Maine Tuesday. Aloft, an upper level low will remain over Labrador Tuesday while a disturbance rotating around the low crosses the forecast area. Generally expect partly cloudy skies across the forecast area Tuesday. Could also have a slight chance of snow/rain showers across mostly the north and mountains. High pressure will ridge south across the forecast area Tuesday night, while low pressure tracks east across the Mid Atlantic/southern New England region. Partly cloudy/mostly clear skies are expected across the region Tuesday night. Ridging will persist across the region Wednesday, while the low tracks south of the Gulf of Maine. Generally expect the northern edge of the precipitation shield with the low to remain across the Gulf of Maine, offshore from the Downeast coast. However, uncertainty does still exist and if the precipitation shield is slightly further north there could be a slight chance of rain showers clipping southwest portions of the forecast area in Hancock county. Temperatures will be at near normal, to slightly above normal, levels Tuesday/Wednesday. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... High pressure will cross the region Wednesday night. Low pressure approaches from the west Thursday, with a secondary low intensifying in the vicinity of the Gulf of Maine late. The secondary low exits across the Maritimes Thursday night, with a trof extending back across the forecast area to the remnants of the primary low. The upper low also crosses the forecast area Thursday night, with the deformation zone extending back across the forecast area. Precipitation should begin in the form of snow or a snow/rain mix early Thursday, then trend toward rain during the afternoon with a warming boundary layer. Colder air wrapping around the exiting low will then allow a transition back to snow Thursday night, with accumulating snow expected. The deformation zone with the upper low will help support snow early Thursday night, with precipitation diminishing overnight. Uncertainty still exists regarding snow accumulations with this system. Temperatures aloft remain cold enough to support snow. The uncertainty is with boundary layer temperatures, how rapidly a transition back to snow occurs and the amount of precipitation remaining once a transition back to snow occurs. The heavier precipitation Thursday night is indicated across central/Downeast portions of the forecast area, with lesser precipitation totals across northern areas. Surface/upper level troffing persist across the region Friday with morning snow/rain showers, afternoon rain showers. An upper level disturbance should bring partly cloudy skies Saturday along with a slight chance of snow and rain showers with precipitation type mostly diurnally driven. Another possible upper level disturbance and surface cold front could keep a chance snow/rain showers Sunday. Near normal, to slightly below normal, level temperatures are expected Thursday/Friday. Near normal level temperatures are expected Saturday/Sunday. && .AVIATION /20Z SUNDAY THROUGH FRIDAY/... NEAR TERM: VFR late this afternoon will give way to a brief period of MVFR early this evening, in any showers associated with a cold front that will cross the region this evening and into tonight. Southwest winds 5 to 10 kt will become West to Northwest with the frontal passage late tonight. Expect VFR conditions on Monday, except couldn't rule out brief MVFR ceilings in any scattered showers, mainly KHUL-KMLT-KGNR line. The bigger story will be the Northwest winds that will gust in excess of 30 kt at times during Monday afternoon. SHORT TERM: Monday night through Tuesday...Occasional MVFR conditions possible across the north and mountains with a chance of snow and rain showers. Otherwise, VFR. Tuesday night through Wednesday night...Generally VFR. Occasional MVFR conditions possible along the Downeast coast Wednesday. Thursday...VFR early, then lowering to IFR/LIFR with developing rain and snow. Gusty east/southeast winds. Thursday night...IFR/LIFR with rain transitioning to snow. Friday...MVFR/IFR with a chance of snow and rain showers. && .MARINE... NEAR TERM: Wind/seas will remain below SCA levels tonight through Monday. Visibility may be briefly reduced to 3-5nm in any showers this evening and then unrestricted late tonight through Monday. SHORT TERM: Conditions below small craft advisory levels Monday night through Wednesday. Visibilities could be reduced in any showers Wednesday. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...None. && Near Term...Duda Short Term...Norcross Long Term...Norcross Aviation...Duda/Norcross Marine...Duda/Norcross
Hazardous Weather Outlook National Weather Service Caribou ME 453 PM EDT Sun Apr 5 2020 MEZ001>006-010-011-031-032-061200- Northwest Aroostook-Northeast Aroostook-Northern Somerset- Northern Piscataquis-Northern Penobscot-Southeast Aroostook- Central Piscataquis-Central Penobscot-Southern Piscataquis- Northern Washington- 453 PM EDT Sun Apr 5 2020 This Hazardous Weather Outlook is for Central Highlands Maine, Far Eastern Maine, Far Northern Maine, North Woods Maine and Penobscot Valley Maine. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Snow melt and mild daytime temperatures into the mid week will lead to rises on rivers and streams with the potential for ice movement. Some smaller streams could reach near bankfull with lowlands seeing some high water. The major rivers are expected to remain well within their banks with no flooding expected. Accumulating snow is expected later Thursday into Thursday night though amounts remain uncertain. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. MEZ015>017-029-030-061200- Southern Penobscot-Interior Hancock-Central Washington- Coastal Hancock-Coastal Washington- 453 PM EDT Sun Apr 5 2020 This Hazardous Weather Outlook is for Coastal DownEast Maine, Interior DownEast Maine and Penobscot Valley Maine. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Accumulating snow is expected later Thursday into Thursday night though amounts remain uncertain. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. ANZ050>052-061200- Coastal Waters from Eastport, ME to Schoodic Point, ME out 25 NM- Coastal Waters from Schoodic Point, ME to Stonington, ME out 25 NM- Intra Coastal Waters from Schoodic Point, ME to Stonington, ME- 453 PM EDT Sun Apr 5 2020 This Hazardous Weather Outlook is for Atlantic Coastal Waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
An ice jam on the Aroostook River led to flooding resulting in the closure of Grimes Road. The waters receded once the ice jam released allowing the road to re-open.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2020Every state in 2020This day in weather historyWarnings in Maine, April 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 886565.