Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 140, NWS Gray, ME

August 3, 2007Coos County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Aug 3, 2007, 8:55 AM EDT for Coos County, New Hampshire. It was in force for 35 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: Aug 3, 2007, 8:55 AM EDT (12:55 UTC)
Expired: Aug 3, 2007, 9:30 AM EDT
In force: 35 min
Issued by: NWS Gray, ME
Area: Counties, with a storm outline in the text

County Coos County, NH

The radar

The Portland,ME radar (KGYX), 122 km from the middle of the area, began a volume at 12:57 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, 0.9 hours before the alert went out and 122 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: 1978 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 1353 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Gray, ME wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 3, 3:01 AM EDT, 5 hours 54 minutes earlier.

Area forecast discussion, Aug 3, 3:01 AM EDT, 5 hours 54 minutes before

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Hazardous weather outlook, Aug 3, 3:27 AM EDT, 5 hours 28 minutes before

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In the hours before

Special weather statement, Aug 3, 8:20 AM EDT, 35 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 9:44 AM EDT	Severe Thunderstorm Warning	GYX	Franklin, Somerset	46 min
Aug 3, 10:25 AM EDT	Severe Thunderstorm Warning	GYX	Somerset	50 min
Aug 3, 1:26 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	34 min
Aug 3, 1:55 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	35 min
Aug 3, 1:57 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	33 min
Aug 3, 2:26 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	34 min
Aug 3, 2:28 PM EDT	Severe Thunderstorm Warning	GYX	Franklin	32 min
Aug 3, 2:43 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	32 min
Aug 3, 2:47 PM EDT	Flash Flood Warning	GYX	Franklin, Oxford	3 hr
Aug 3, 2:59 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	19 min
Aug 3, 3:45 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	45 min
Aug 3, 3:53 PM EDT	Severe Thunderstorm Warning	GYX	Franklin	37 min
Aug 3, 3:54 PM EDT	Severe Thunderstorm Warning	GYX	Somerset	51 min
Aug 3, 4:08 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	37 min
Aug 3, 4:39 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	51 min
Aug 3, 5:06 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	39 min
Aug 3, 5:28 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	47 min
Aug 3, 5:39 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	36 min
Aug 3, 5:43 PM EDT	Severe Thunderstorm Warning	GYX	Kennebec	47 min
Aug 3, 6:11 PM EDT	Severe Thunderstorm Warning	GYX	Kennebec, Somerset, Waldo	34 min
Aug 3, 6:24 PM EDT	Severe Thunderstorm Warning	GYX	Oxford	36 min
Aug 3, 6:43 PM EDT	Severe Thunderstorm Warning	GYX	Waldo	32 min
Aug 3, 7:55 PM EDT	Severe Thunderstorm Warning	GYX	Franklin, Oxford	35 min
Aug 3, 2:19 PM EDT	Severe Thunderstorm Warning	GYX	Sullivan	41 min
Aug 3, 4:09 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack	36 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 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.