Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 27, NWS Gray, ME

June 25, 2017Coos County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jun 25, 2017, 7:09 PM EDT for Coos County, New Hampshire. It was in force for 41 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 25, 2017, 7:09 PM EDT (23:09 UTC)
Expired: Jun 25, 2017, 7:50 PM EDT
In force: 41 min
Issued by: NWS Gray, ME
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Coos County, NH

The radar

The Portland,ME radar (KGYX), 122 km from the middle of the area, began a volume at 23:09 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, 11.2 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1466 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: 85 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 Gray, ME wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 4:42 PM EDT, 2 hours 27 minutes earlier.

Area forecast discussion, Jun 25, 4:42 PM EDT, 2 hours 27 minutes before

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Hazardous weather outlook, Jun 25, 3:38 PM EDT, 3 hours 31 minutes before

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In the hours before

Special weather statement, Jun 25, 6:45 PM EDT, 24 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
Jun 25, 8:21 AM EDT	Beach Hazards Statement	GYX	Cumberland, Knox, Lincoln, Sagadahoc, Waldo, York	12 hr
Jun 25, 2:51 PM EDT	Coastal Flood Statement	GYX	Cumberland, York	11 hr
Jun 25, 7:40 PM EDT	Special Weather Statement	GYX	Cumberland	35 min
Jun 25, 6:45 PM EDT	Special Weather Statement	GYX	Coos	30 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2017 Every severe thunderstorm warning in 2017

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.