Alert archive / Maine / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 9, NWS Caribou, ME

June 27, 2019Piscataquis County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jun 27, 2019, 6:51 PM EDT for Piscataquis County, Maine. It was in force for 39 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
Jun 27, 2019, 6:51 PM EDT (22:51 UTC)
Expired
Jun 27, 2019, 7:30 PM EDT
In force
39 min
Issued by
NWS Caribou, ME
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Piscataquis County, ME

The radar

The Caribou radar (KCBW), 116 km from the middle of the area, began a volume at 22:55 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

Caribou, ME (KCAR), launched 12:00Z, 10.9 hours before the alert went out and 151 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, Caribou, ME at 12:00Z on 2019-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Caribou, ME at 12:00Z on 2019-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
61 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 Jun 27, 6:14 PM EDT, 37 minutes earlier.

Area forecast discussion, Jun 27, 6:14 PM EDT, 37 minutes before
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Hazardous weather outlook, Jun 27, 9:57 AM EDT, 8 hours 54 minutes before
Hazardous Weather Outlook
National Weather Service Caribou ME
957 AM EDT Thu Jun 27 2019

MEZ001-003-004-010-015-031-281400-
Northwest Aroostook-Northern Somerset-Northern Piscataquis-
Central Piscataquis-Southern Penobscot-Southern Piscataquis-
957 AM EDT Thu Jun 27 2019

This Hazardous Weather Outlook is for Central Highlands Maine, Far
Northern Maine, North Woods Maine and Penobscot Valley Maine.

.DAY ONE...Today and Tonight.

...Thunderstorms with hail and strong wind gusts are expected this
afternoon...

Strong thunderstorms are expected to develop this afternoon and
continue into early evening with hail and strong wind gusts. Heavy
rainfall and frequent cloud to ground lightning will accompany the
thunderstorms. There is possibility that a few storms could become
severe later this afternoon into early evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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.

MEZ002-005-006-011-016-017-029-030-032-281400-
Northeast Aroostook-Northern Penobscot-Southeast Aroostook-
Central Penobscot-Interior Hancock-Central Washington-
Coastal Hancock-Coastal Washington-Northern Washington-
957 AM EDT Thu Jun 27 2019

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

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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>052-281400-
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-
957 AM EDT Thu Jun 27 2019

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...Friday through Wednesday.

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, Jun 27, 2:07 PM EDT, 4 hours 44 minutes before
Special Weather Statement
National Weather Service Caribou ME
207 PM EDT Thu Jun 27 2019

MEZ001-003-004-271900-
Northern Piscataquis-Northern Somerset-Northwest Aroostook-
207 PM EDT Thu Jun 27 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN SOMERSET...
NORTH CENTRAL PISCATAQUIS AND WEST CENTRAL AROOSTOOK COUNTIES...

At 206 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Saint Pamphile to near Clayton Lake.
Movement was east at 20 mph.

Small hail is possible with these storms.

Locations impacted include...
Clayton Lake, Saint Pamphile, Lac Frontiere, Daaquam, Saint Juste,
Nine-mile Bridge, Allagash Township and Round Pond.

If outdoors, consider seeking shelter inside a building.

These storms 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 4669 7000 4695 6974 4703 6900 4648 6891
      4656 7003
TIME...MOT...LOC 1806Z 268DEG 19KT 4688 6964 4662 6960

MALOIT
Special weather statement, Jun 27, 2:18 PM EDT, 4 hours 33 minutes before
Special Weather Statement
National Weather Service Caribou ME
218 PM EDT Thu Jun 27 2019

MEZ004-010-271915-
Northern Piscataquis-Central Piscataquis-
218 PM EDT Thu Jun 27 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WEST CENTRAL
PISCATAQUIS COUNTY...

At 217 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Rockwood to 16 miles northwest of
Greenville. Movement was east at 15 mph.

Small hail is possible with these storms.

Locations impacted include...
Greenville, Kokadjo, Rockwood, Frenchtown, Northeast Carry, Beaver
Cove, Spencer Bay, Mount Kineo, Lily Bay and Indian Stream.

If outdoors, consider seeking shelter inside a building.

These storms 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 4574 6979 4577 6978 4575 6976 4575 6973
      4581 6971 4583 6934 4582 6932 4548 6949
      4550 6977 4554 6978 4558 6971 4561 6971
      4562 6970 4564 6971 4565 6970 4565 6973
      4567 6974 4571 6979 4574 6981
TIME...MOT...LOC 1817Z 264DEG 12KT 4575 6977 4559 6988

Maloit
Special weather statement, Jun 27, 3:33 PM EDT, 3 hours 18 minutes before
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Special weather statement, Jun 27, 4:29 PM EDT, 2 hours 22 minutes before
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Special weather statement, Jun 27, 4:31 PM EDT, 2 hours 20 minutes before
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Special weather statement, Jun 27, 6:18 PM EDT, 33 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 4:28 AM EDTSpecial Weather StatementCARPiscataquis47 min
Jun 27, 9:43 AM EDTSpecial Weather StatementCARAroostook32 min
Jun 27, 2:07 PM EDTSpecial Weather StatementCAR53 min
Jun 27, 2:18 PM EDTSpecial Weather StatementCARSomerset57 min
Jun 27, 2:43 PM EDTSevere Thunderstorm WarningCARAroostook, Piscataquis47 min
Jun 27, 3:21 PM EDTSevere Thunderstorm WarningCARPiscataquis39 min
Jun 27, 3:44 PM EDTSevere Thunderstorm WarningCARPiscataquis46 min
Jun 27, 3:51 PM EDTSevere Thunderstorm WarningCARPiscataquis39 min
Jun 27, 3:54 PM EDTSevere Thunderstorm WarningCARPenobscot, Piscataquis66 min
Jun 27, 4:29 PM EDTSpecial Weather StatementCARAroostook46 min
Jun 27, 4:31 PM EDTSpecial Weather StatementCARAroostook44 min
Jun 27, 4:57 PM EDTSevere Thunderstorm WarningCARPenobscot, Piscataquis48 min
Jun 27, 5:08 PM EDTSevere Thunderstorm WarningCARAroostook27 min
Jun 27, 6:18 PM EDTSpecial Weather StatementCARAroostook42 min
Jun 27, 6:25 PM EDTSevere Thunderstorm WarningCARAroostook, Piscataquis35 min
Jun 27, 7:12 PM EDTSpecial Weather StatementCARPiscataquis33 min
Jun 27, 7:31 PM EDTSevere Thunderstorm WarningCARPiscataquis, Somerset44 min
Jun 27, 7:44 PM EDTSpecial Weather StatementCARPiscataquis31 min

Nearby

Severe Thunderstorm Warnings in Maine, 2019Every severe thunderstorm warning in 2019

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.