Alert archive / Maine / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 22, NWS Caribou, ME

June 27, 2007Piscataquis County, Somerset County, Maine

NWS Caribou, ME issued this severe thunderstorm warning at Jun 27, 2007, 6:31 PM EDT for Piscataquis County, Somerset 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: Jun 27, 2007, 6:31 PM EDT (22:31 UTC)
Expired: Jun 27, 2007, 7:15 PM EDT
In force: 44 min
Issued by: NWS Caribou, ME
Area: Counties, with a storm outline in the text

Counties Piscataquis County, ME, Somerset County, ME

The radar

The Caribou radar (KCBW), 146 km from the middle of the area, began a volume at 22:32 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 27, 2:42 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Gray, ME (KGYX), launched 12:00Z, 10.5 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: 273 J/kg
Mixed-layer CIN: -256 J/kg
Mixed-layer LCL: 1721 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 57 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, 4:07 PM EDT, 2 hours 24 minutes earlier.

Area forecast discussion, Jun 27, 4:07 PM EDT, 2 hours 24 minutes before

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Hazardous weather outlook, Jun 27, 3:33 PM EDT, 2 hours 58 minutes before

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In the hours before

Special weather statement, Jun 27, 5:05 PM EDT, 1 hour 26 minutes before

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Local storm report, Jun 27, 5:07 PM EDT, 1 hour 24 minutes before

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Special weather statement, Jun 27, 5:48 PM EDT, 43 minutes before

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Local storm report, Jun 27, 6:04 PM EDT, 27 minutes before

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Special weather statement, Jun 27, 6:07 PM EDT, 24 minutes before

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Special weather statement, Jun 27, 6:24 PM EDT, 7 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
Jun 27, 2:42 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot	48 min
Jun 27, 3:30 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot, Washington	60 min
Jun 27, 3:48 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot	42 min
Jun 27, 4:25 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Washington	65 min
Jun 27, 4:34 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot	26 min
Jun 27, 4:37 PM EDT	Special Marine Warning	CAR		65 min
Jun 27, 5:11 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Penobscot	34 min
Jun 27, 5:48 PM EDT	Severe Thunderstorm Warning	CAR	Hancock, Washington	57 min
Jun 27, 5:54 PM EDT	Severe Thunderstorm Warning	CAR	Penobscot	36 min
Jun 27, 7:36 PM EDT	Severe Thunderstorm Warning	CAR	Somerset	39 min

Nearby

Severe Thunderstorm Warnings in Maine, 2007 Every severe thunderstorm warning in 2007

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.