Alert archive / New Hampshire / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 75, NWS Gray, ME

July 26, 2015Cheshire County, New Hampshire

NWS Gray, ME issued this severe thunderstorm warning at Jul 26, 2015, 4:19 PM EDT for Cheshire 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: Jul 26, 2015, 4:19 PM EDT (20:19 UTC)
Expired: Jul 26, 2015, 5:00 PM EDT
In force: 41 min
Issued by: NWS Gray, ME
Area: Storm-based polygon

County Cheshire County, NH

The radar

The Boston radar (KBOX), 141 km from the middle of the area, began a volume at 20:20 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

Albany, NY (KALY), launched 12:00Z, 8.3 hours before the alert went out and 131 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: 992 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 189 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 Jul 26, 3:17 PM EDT, 1 hour 2 minutes earlier.

Area forecast discussion, Jul 26, 3:17 PM EDT, 1 hour 2 minutes before

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Hazardous weather outlook, Jul 26, 3:25 PM EDT, 54 minutes before

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In the hours before

Special weather statement, Jul 26, 4:12 PM EDT, 7 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
Jul 26, 4:12 PM EDT	Special Weather Statement	GYX	Cheshire	48 min
Jul 26, 4:45 PM EDT	Areal Flood Advisory	GYX	Cheshire	3 hr
Jul 26, 4:56 PM EDT	Special Weather Statement	GYX	Hillsborough	49 min

Nearby

Severe Thunderstorm Warnings in New Hampshire, 2015 Every severe thunderstorm warning in 2015

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.