Alert archive / Maine / Special Weather Statements in 2021

Special Weather Statement, NWS Caribou, ME

August 14, 2021Hancock County, Maine

NWS Caribou, ME issued this special weather statement at Aug 14, 2021, 3:41 PM EDT for Hancock County, Maine. It was in force for 49 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
Aug 14, 2021, 3:41 PM EDT (19:41 UTC)
Expired
Aug 14, 2021, 4:30 PM EDT
In force
49 min
Issued by
NWS Caribou, ME
Hail
0.50 in
Wind
40

County Hancock County, ME

The radar

The Caribou radar (KCBW), 153 km from the middle of the area, began a volume at 19:44 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

Gray, ME (KGYX), launched 12:00Z, 7.7 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.

Skew-T log-pSkew-T log-p diagram, Gray, ME at 12:00Z on 2021-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 376 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Gray, ME at 12:00Z on 2021-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
376 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1297 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, 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 this special weather statement went out at Aug 14, 3:34 PM EDT, 7 minutes earlier.

Area forecast discussion, Aug 14, 3:34 PM EDT, 7 minutes before
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Hazardous weather outlook, Aug 14, 4:36 AM EDT, 11 hours 5 minutes before
Hazardous Weather Outlook
National Weather Service Caribou ME
436 AM EDT Sat Aug 14 2021

MEZ001-003-004-150845-
Northwest Aroostook-Northern Somerset-Northern Piscataquis-
436 AM EDT Sat Aug 14 2021

This Hazardous Weather Outlook is for Far Northern Maine and North
Woods Maine.

.DAY ONE...Today and tonight.

Thunderstorms are expected today with a few storms containing gusty
winds and small hail.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

MEZ002-005-006-010-031-150845-
Northeast Aroostook-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-Southern Piscataquis-
436 AM EDT Sat Aug 14 2021

This Hazardous Weather Outlook is for Central Highlands Maine, Far
Eastern Maine and Far Northern Maine.

.DAY ONE...Today and tonight.

Thunderstorms are expected later this morning into this afternoon.
Some thunderstorms could be strong to possibly severe with strong
wind gusts and very heavy rainfall.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

MEZ011-015>017-029-030-032-150845-
Central Penobscot-Southern Penobscot-Interior Hancock-
Central Washington-Coastal Hancock-Coastal Washington-
Northern Washington-
436 AM EDT Sat Aug 14 2021

This Hazardous Weather Outlook is for Coastal DownEast Maine, Far
Eastern Maine, Interior DownEast Maine and Penobscot Valley Maine.

.DAY ONE...Today and tonight.

Thunderstorms expected this afternoon into the early evening. A few
storms could be strong to possibly severe with strong wind gusts and
very heavy rainfall. The heavy rainfall could lead to some minor
street flooding.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

ANZ050>052-150845-
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-
436 AM EDT Sat Aug 14 2021

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...Sunday through Friday.

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.

In the hours before

Special weather statement, Aug 14, 11:29 AM EDT, 4 hours 12 minutes before
Special Weather Statement
National Weather Service Caribou ME
1129 AM EDT Sat Aug 14 2021

MEZ002-005-006-141630-
Southeast Aroostook ME-Northeast Aroostook ME-Northern Penobscot ME-
1129 AM EDT Sat Aug 14 2021

...A strong thunderstorm will impact portions of southeastern
Aroostook and north central Penobscot Counties through 1230 PM EDT...

At 1128 AM EDT, Doppler radar was tracking a strong thunderstorm near
Patten, moving northeast toward Houlton and vicinity at 30 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Houlton, Patten, Hodgdon, Sherman, Island Falls, Bridgewater, Smyrna,
Amity, Mount Chase, Dudley Township, Sherman Station, Cary
Plantation, Shin Pond, Smyrna Mills, northeastern Katahdin Woods and
Waters National Monument, Littleton, Linneus, Monticello, Oakfield
and Blaine.

This includes the following highways...
 Interstate 95 between mile markers 259 and 304.
 US Highway 1 between North Amity and Bridgewater.
 State Highway 11 between Sherman and Knowles Corner.

LAT...LON 4573 6839 4609 6863 4650 6779 4595 6778
TIME...MOT...LOC 1528Z 237DEG 27KT 4595 6843

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Bloomer
Local storm report, Aug 14, 11:31 AM EDT, 4 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
1131 AM EDT SAT AUG 14 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1050 AM     HAIL             2 NW MILLINOCKET        45.68N 68.74W
08/14/2021  E0.50 INCH       PENOBSCOT          ME   TRAINED SPOTTER

            VERY HEAVY RAINFALL WITH MINOR FLOODING AND
            0.25 TO 0.5 INCH HAIL.

&&

LF
Special weather statement, Aug 14, 2:24 PM EDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Caribou ME
224 PM EDT Sat Aug 14 2021

MEZ015-016-141930-
Interior Hancock ME-Southern Penobscot ME-
224 PM EDT Sat Aug 14 2021

...A strong thunderstorm will impact portions of west central Hancock
and south central Penobscot Counties through 330 PM EDT...

At 223 PM EDT, Doppler radar was tracking a strong thunderstorm near
Dixmont, moving east at 30 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Bangor, Ellsworth, Bucksport, Orono, Brewer, Hampden, Hermon, Veazie,
Dedham, Orrington, Holden, Milford, Carmel, Eddington, Orland,
Newburgh, Bradley, Etna, Dixmont and Clifton.

This includes the following highways...
 Interstate 95 between mile markers 172 and 191.
 State Highway 9 between Dixmont and Clifton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4461 6882 4463 6884 4467 6881 4468 6881
      4469 6883 4470 6884 4465 6919 4471 6920
      4497 6846 4467 6833 4460 6872 4460 6873
      4459 6880 4459 6881
TIME...MOT...LOC 1823Z 249DEG 27KT 4462 6918

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

Foisy
Special weather statement, Aug 14, 2:43 PM EDT, 58 minutes before
Special Weather Statement
National Weather Service Caribou ME
243 PM EDT Sat Aug 14 2021

MEZ002-141930-
Northeast Aroostook ME-
243 PM EDT Sat Aug 14 2021

...Strong thunderstorms will impact portions of east central
Aroostook County through 330 PM EDT...

At 242 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Woodland to 6 miles west of Mars Hill.
Movement was northeast at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Presque Isle, Caribou, Fort Fairfield, Limestone, Mapleton, Washburn,
Mars Hill, Easton, Woodland, Bridgewater, Loring, Blaine, New Sweden,
Westfield, Chapman, Connor, Perham, Caswell, Wade and Hamlin.

This includes US Highway 1 between Blaine and Caribou.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4707 6779 4648 6778 4642 6806 4688 6820
      4708 6781
TIME...MOT...LOC 1842Z 242DEG 25KT 4685 6810 4652 6800

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

Foisy
Special weather statement, Aug 14, 3:02 PM EDT, 39 minutes before
Special Weather Statement
National Weather Service Caribou ME
302 PM EDT Sat Aug 14 2021

MEZ016-029-142015-
Interior Hancock ME-Coastal Hancock ME-
302 PM EDT Sat Aug 14 2021

...Strong thunderstorms will impact portions of southern Hancock
County through 415 PM EDT...

At 302 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Winterport to near Camden. Movement was
east at 25 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Ellsworth, Bucksport, Blue Hill, Deer Isle, Dedham, Castine,
Stonington, Verona Island, Penobscot Township, Hancock, Franklin,
Orrington, Orland, Lamoine, Trenton, Surry, Penobscot, Sullivan,
Sedgwick and Brooksville.

This includes US Highway 1 between Orland and Hancock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4405 6849 4409 6862 4416 6864 4412 6871
      4420 6873 4421 6871 4421 6886 4422 6887
      4422 6868 4434 6875 4423 6885 4429 6884
      4426 6886 4426 6887 4438 6876 4438 6877
      4469 6879 4473 6805
TIME...MOT...LOC 1902Z 267DEG 19KT 4464 6876 4426 6910

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Foisy
Special weather statement, Aug 14, 3:41 PM EDT, 0 minutes before
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The office that day

Everything else NWS Caribou, ME issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 14, 4:04 AM EDTSpecial Weather StatementCAR41 min
Aug 14, 9:36 AM EDTSpecial Weather StatementCARPenobscot39 min
Aug 14, 10:31 AM EDTSpecial Weather StatementCARPenobscot44 min
Aug 14, 11:29 AM EDTSpecial Weather StatementCAR61 min
Aug 14, 2:24 PM EDTSpecial Weather StatementCARHancock66 min
Aug 14, 2:43 PM EDTSpecial Weather StatementCARAroostook47 min
Aug 14, 3:02 PM EDTSpecial Weather StatementCARHancock73 min
Aug 14, 3:07 PM EDTSevere Thunderstorm WarningCARHancock38 min
Aug 14, 4:22 PM EDTSpecial Weather StatementCARWashington38 min
Aug 14, 4:58 PM EDTSpecial Weather StatementCARWashington47 min

Nearby

Special Weather Statements in Maine, 2021Every special weather statement 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.