Alert archive / Maine / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 11, NWS Caribou, ME

July 10, 2018Hancock County, Washington County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jul 10, 2018, 4:16 PM EDT for Hancock County, Washington County, Maine. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 10, 2018, 4:16 PM EDT (20:16 UTC)
Expired: Jul 10, 2018, 5:00 PM EDT
In force: 44 min
Issued by: NWS Caribou, ME
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hancock County, ME, Washington County, ME

The radar

The Caribou radar (KCBW), 142 km from the middle of the area, began a volume at 20:16 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, 8.3 hours before the alert went out and 205 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2107 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 10, 4:06 PM EDT, 10 minutes earlier.

Area forecast discussion, Jul 10, 4:06 PM EDT, 10 minutes before

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Hazardous weather outlook, Jul 10, 9:24 AM EDT, 6 hours 52 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Caribou ME
924 AM EDT Tue Jul 10 2018

MEZ001>003-111330-
Northwest Aroostook-Northeast Aroostook-Northern Somerset-
924 AM EDT Tue Jul 10 2018

This Hazardous Weather Outlook is for Far Northern Maine and West
Central Maine.

.DAY ONE...Today and Tonight.

Thunderstorms are expected to develop later this morning into the
afternoon. A few storms have the potential to produce strong wind
gusts and hail.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

MEZ004>006-010-011-015>017-031-032-111330-
Northern Piscataquis-Northern Penobscot-Southeast Aroostook-
Central Piscataquis-Central Penobscot-Southern Penobscot-
Interior Hancock-Central Washington-Southern Piscataquis-
Northern Washington-
924 AM EDT Tue Jul 10 2018

This Hazardous Weather Outlook is for East Central Maine, Eastern
Maine, Interior DownEast Maine, North Central Maine and Northern
Maine.

.DAY ONE...Today and Tonight.

...Strong Thunderstorms are expected this afternoon...

Thunderstorms are expected to develop later this morning into the
afternoon. Some thunderstorms have the potential to produce strong
wind gusts up to 50 mph and hail.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

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.

MEZ029-030-111330-
Coastal Hancock-Coastal Washington-
924 AM EDT Tue Jul 10 2018

This Hazardous Weather Outlook is for Coastal DownEast Maine.

.DAY ONE...Today and Tonight.

Thunderstorms are expected to develop this afternoon. Some storms
may contain gusty winds and dangerous cloud to ground lightning this
afternoon.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Long period swell from a tropical system that will become post
tropical as it passes east of the area Thursday will produce long
period swell and the possibility of high surf around the times of
high tide Thursday.

.SPOTTER INFORMATION STATEMENT...

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

ANZ050>052-111330-
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-
924 AM EDT Tue Jul 10 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...Wednesday through Monday.

Long period swell from a tropical system that will become post
tropical as it passes east of the area Thursday will produce long
period swell.

.SPOTTER INFORMATION STATEMENT...

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

Hewitt

In the hours before

Special weather statement, Jul 10, 12:53 PM EDT, 3 hours 23 minutes before

Special Weather Statement
National Weather Service Caribou ME
1253 PM EDT TUE JUL 10 2018

MEZ001-101730-
Northwest Aroostook-
1253 PM EDT TUE JUL 10 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL AROOSTOOK
COUNTY...

At 1252 PM EDT, a strong thunderstorm was located near Allagash,
moving east at 25 mph.

Winds in excess of 30 mph and half inch hail are possible with this
storm.

Locations impacted include...
Fort Kent, Eagle Lake, Allagash, New Canada, Allagash Township,
Wallagrass, Winterville, Saint Francis, Saint John and Soldier Pond.

This includes State Highway 11 between Eagle Lake and Fort Kent.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4724 6854 4699 6855 4705 6907 4721 6906
      4722 6897 4720 6895 4721 6894 4720 6893
      4718 6890 4719 6886 4722 6881 4722 6876
      4723 6875
TIME...MOT...LOC 1652Z 271DEG 23KT 4711 6898

Kredensor

Special weather statement, Jul 10, 1:12 PM EDT, 3 hours 4 minutes before

Special Weather Statement
National Weather Service Caribou ME
112 PM EDT TUE JUL 10 2018

MEZ001-002-101730-
Northeast Aroostook-Northwest Aroostook-
112 PM EDT TUE JUL 10 2018

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN AROOSTOOK COUNTY...

At 111 PM EDT, a strong thunderstorm was located 7 miles south of
Lille, or 8 miles west of Van Buren, moving east at 35 mph.

Winds in excess of 30 mph and pea size hail are possible with this
storm.

Locations impacted include...
Madawaska, Van Buren, Lille, Madawaska Lake, Grand Isle, Stockholm,
Hamlin, Cyr Plantation and Saint Agatha.

This includes US Highway 1 near Van Buren and Lille.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4726 6807 4724 6803 4721 6799 4721 6797
      4720 6795 4717 6794 4712 6789 4711 6789
      4710 6788 4710 6821 4724 6824 4727 6808
TIME...MOT...LOC 1711Z 259DEG 29KT 4717 6811

Kredensor

Local storm report, Jul 10, 1:48 PM EDT, 2 hours 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
148 PM EDT TUE JUL 10 2018

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

0137 PM     HAIL             2 NE SHIRLEY            45.38N 69.60W
07/10/2018  E1.00 INCH       PISCATAQUIS        ME   DEPT OF HIGHWAYS

            SHIRLEY DOT WORKER REPORTS HAIL UP TO ONE
            INCH IN DIAMETER.

&&

FMK

Local storm report, Jul 10, 2:10 PM EDT, 2 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
210 PM EDT TUE JUL 10 2018

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

0125 PM     HAIL             DAIGLE                  47.19N 68.46W
07/10/2018  E1.00 INCH       AROOSTOOK          ME   PUBLIC

            NEW CANADA TOWN OFFICE REPORTS NICKLE AND
            QUARTER SIZED HAIL.

&&

FMK

Special weather statement, Jul 10, 4:00 PM EDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 12:53 PM EDT	Special Weather Statement	CAR	Aroostook	37 min
Jul 10, 1:12 PM EDT	Special Weather Statement	CAR		18 min
Jul 10, 1:18 PM EDT	Severe Thunderstorm Warning	CAR	Aroostook	27 min
Jul 10, 1:30 PM EDT	Severe Thunderstorm Warning	CAR	Somerset	30 min
Jul 10, 1:32 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Piscataquis	43 min
Jul 10, 2:15 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot, Piscataquis	32 min
Jul 10, 3:38 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot	37 min
Jul 10, 3:42 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot	33 min
Jul 10, 4:00 PM EDT	Special Weather Statement	CAR		45 min
Jul 10, 5:00 PM EDT	Severe Thunderstorm Warning	CAR	Washington	30 min

Nearby

Severe Thunderstorm Warnings in Maine, 2018 Every severe thunderstorm warning in 2018

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.