Rain and melting snow produced flooding along the Mattawamkeag River. then fell below flood stage during the afternoon of the 4th.
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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.
Rain and melting snow produced flooding along the Mattawamkeag River. The river rose above flood stage on April 28th...crested around 2 feet above flood stage early on the 30th...then fell below flood stage during the afternoon of the 4th. The flooding mostly impacted low lying marshy areas along the river. However...a portion of the Bancroft Road between Wytopitlock and Danforth was closed for nearly a week due to the flooding. This was an event which began in late April and persisted into early May.
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 30, 11:50 PM EST, 10 minutes earlier.
Area Forecast Discussion National Weather Service Caribou ME 1250 AM EDT Tue May 1 2018 .SYNOPSIS... Upper level low pressure will slide to the southeast overnight and Tuesday as a ridge of high pressure builds onto the East Coast. The high to our south will push warmer air across our region on Wednesday. Low pressure will track north the area Wednesday evening. && .NEAR TERM /THROUGH TUESDAY/... 1230 AM Update: No major changes made this update. Did keep patchy fog in through 06z, with areas of fog afterward, but it has been slow to develop, likely due to the persistent cloud cover. Did adjust temps through 06z for current conditions and trends. Biggest change, relatively speaking, was to remove the last of the scattered showers from the grids between Bangor and Patten, as it appears any lingering signatures on radar have dissipated. Kept some isolated showers, but not expecting much more. Orgnl Disc: The models are in good agreement through the near term period of the forecast. A low with an associated upper level low will be tracking east across the Gulf of Maine through the near term. Mostly cloudy conditions will persist across the north and east with mostly sunny conditions Downeast. Patchy fog will develop tonight, starting Downeast and spreading north. Expect that the fog will burn off by mid morning tomorrow. Scattered showers mainly across the north will continue tonight, with a slight chance for showers mainly north tomorrow morning. By the end of the period tomorrow the remnants of the occlusion will be brought back into western Maine increasing the chance for showers. Preserved as much of previous forecast as practical. Used a blend of GFS/ECMWF/NAM/GEM for max/min and hrly temps/ winds. Maintained QPF from previous forecast and adjusted for current conditons. Used GYX wind gust tool for gusts. Maintained skycon from previous forecast and adjusted with consistency tool to ensure that the skycon and pops matched. && .SHORT TERM /TONIGHT THROUGH THURSDAY/... A strong ridge of high pressure both surface and aloft will build onto the east coast Tuesday night. A return flow behind this ridge will begin to push warmer air into our area on west, southwesterly winds overnight into Wednesday. This will set the stage for the warmest day so far this year on Wednesday with highs in the upper 70s Downeast to the upper 60s across the north. A frontal boundary nearby to the north could make temperature and cloud cover forecasting a bit challenging over the far north. A small low in the fast moving west to east flow north of the upper ridge will quickly approach the north late Wednesday afternoon. Differential advection including southwesterly winds near the surface and westerly winds aloft could produce instability ahead of this low. Soundings are showing cape up to 500 J/KG on the NAM and 100 J/KG on the GFS across the north Wednesday afternoon. A chance of thunderstorms will be introduced in the forecast across the north late Wednesday afternoon. Any storms could produce gusty winds from strong winds aloft being transfered to the surface. Otherwise, some rain will be likely across the north Wednesday evening with dry and mild weather across the south. The frontal boundary will push south a bit late Wednesday night into Thursday leaving Thursday mostly cloudy with a chance for more showers across the whole area. && .LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/... Some showers will be likely Downeast Thursday evening as the front pushes south across the region. The front should continue south Thursday night allowing the sky to clear as a small area of high pressure pushes in. Friday should then begin sunny and tranquil before the next fast moving low approaches from the west. Clouds will quickly increase from south to north through the midday Friday and rain will spread across the area during the early afternoon Downeast and late afternoon across the north. A thunderstorm is possible Downeast late Friday afternoon or early Friday evening. The low will quickly lift northwest of the area late Friday night as drier air returns. This will give way to a breezy day on Saturday with sunshine Downeast and partial sunshine across the north. Dry weather should persist into Sunday and Monday as high pressure builds over. && .AVIATION /06Z TUESDAY THROUGH SATURDAY/... NEAR TERM: IFR conditons CAR, PQI, FVE, and HUL through the period with scattered showers tonight, isolated showers tomorrow, patchy fog developing around midnight. IFR tonight in patchy fog tonight for BGR and BHB developing after sunset, clearing out tomorrow morning and becoming VFR. SHORT TERM: VFR conditions Tuesday evening may lower to IFR across the north and MVFR Downeast as low clouds in warm advection move into the area. This will give way to VFR conditions Downeast and MVFR conditions over the north on Wednesday, possibly dropping to IFR in lower clouds, showers and perhaps a thunderstorm over the north Wednesday afternoon. Conditions should return to MVFR over the north and VFR Downeast Wednesday night. MVFR conditions are expected Thursday, possibly dropping to IFR in showers across the area Thursday night. Conditions should return to VFR late Thursday night into Friday morning then drop to IFR from south to north in rain Friday afternoon into Friday evening. A return to VFR is likely late Friday night into Saturday. && .MARINE... NEAR TERM: A Small Craft Advisory is in effect for Seas in excess of 5 ft through 10 pm tonight. Seas are mainly in a long period swell from the southwest. A low pressure system tracking east across the Gulf of Maine causing the swell waters will exit the region tomorrow afternoon. SHORT TERM: Winds may approach SCA late Wednesday through Thursday evening in westerlies, south of low pressure tracking through the north. High pressure should then bring light winds late Thursday night into Friday morning. A SCA may be needed Friday afternoon through Friday night as a new low tracks across the north. South winds ahead of the low will likely result in seas building well over 5 ft across the offshore waters. && .HYDROLOGY... Flood warnings remain in effect for the Mattawamkeag River above Mattawamkeag, the Fish River just S of FT Kent, The Saint John River at FT Kent, and the Big Black River near the confluence at the St John ovr far NW Aroostook county. The Fish River at Fort Kent is over flood stage and expected to crest tomorrow afternoon near moderate flood stage. All the lakes in Northern Aroostook County are running high with flood advisories issued due to minor flooding of service roadways and lake camp/house basement flooding. Rainfall today may cause the rivers to remain near or just over flood stage. Elsewhere across northern Maine, rivers will continue to run very high and fast this week due to the recent rain and snowmelt. && .CAR WATCHES/WARNINGS/ADVISORIES... ME...None. MARINE...None. && Near Term...Kredensor/VJN Short Term...Bloomer Long Term...Bloomer Aviation...Kredensor/VJN/Bloomer Marine...Kredensor/VJN/Bloomer Hydrology...
Hazardous Weather Outlook National Weather Service Caribou ME 345 AM EDT Mon Apr 30 2018 MEZ001>006-010-011-015>017-029>032-010745- Northwest Aroostook-Northeast Aroostook-Northern Somerset- Northern Piscataquis-Northern Penobscot-Southeast Aroostook- Central Piscataquis-Central Penobscot-Southern Penobscot- Interior Hancock-Central Washington-Coastal Hancock- Coastal Washington-Southern Piscataquis-Northern Washington- 345 AM EDT Mon Apr 30 2018 This Hazardous Weather Outlook is for Coastal DownEast Maine, East Central Maine, Eastern Maine, Far Northern Maine, Interior DownEast Maine, North Central Maine, Northern Maine and West Central Maine. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. 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. ANZ050>052-010745- 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- 345 AM EDT Mon Apr 30 2018 This Hazardous Weather Outlook is for Atlantic Coastal Waters. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. 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.
Flooding along the Mattawamkeag River led to the closure of a portion of the Bancroft Road...between Wytopitlock and Danforth...for nearly a week.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Maine in 2018Every state in 2018This day in weather historyWarnings in Maine, May 2018
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: 755115.