Alert archive / New Hampshire / Special Weather Statements in 2021

Special Weather Statement, NWS Gray, ME

June 28, 2021Grafton County, New Hampshire

NWS Gray, ME issued this special weather statement at Jun 28, 2021, 6:10 PM EDT for Grafton 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 outline as issued.

The facts

Issued: Jun 28, 2021, 6:10 PM EDT (22:10 UTC)
Expired: Jun 28, 2021, 6:45 PM EDT
In force: 35 min
Issued by: NWS Gray, ME

County Grafton County, NH

The radar

The Burlington radar (KCXX), 110 km from the middle of the area, began a volume at 22:12 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, 10.2 hours before the alert went out and 146 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: 150 J/kg
Mixed-layer CIN: -148 J/kg
Mixed-layer LCL: 1426 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 28, 4:48 PM EDT, 1 hour 22 minutes earlier.

Area forecast discussion, Jun 28, 4:48 PM EDT, 1 hour 22 minutes before

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Hazardous weather outlook, Jun 28, 4:32 PM EDT, 1 hour 38 minutes before

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In the hours before

Special weather statement, Jun 28, 4:09 PM EDT, 2 hours 1 minute before

Special Weather Statement
National Weather Service Gray ME
409 PM EDT Mon Jun 28 2021

NHZ002>004-006-282045-
Northern Grafton-Southern Carroll-Southern Coos-Northern Carroll-
409 PM EDT Mon Jun 28 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL GRAFTON AND NORTH
CENTRAL CARROLL COUNTIES...

At 408 PM EDT, a strong thunderstorm was located near Lincoln, moving
east at 40 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Lincoln, Franconia, Woodstock, Tamworth, Sandwich, Bartlett, Jackson,
Albany, Waterville Valley, Livermore, Hart's Location and Thornton.

This includes Interstate 93 between mile markers 95 and 108.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4397 7176 4415 7171 4418 7119 4387 7123
TIME...MOT...LOC 2008Z 271DEG 34KT 4406 7161

Tubbs

Special weather statement, Jun 28, 4:41 PM EDT, 1 hour 29 minutes before

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Special weather statement, Jun 28, 5:41 PM EDT, 29 minutes before

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Special weather statement, Jun 28, 6:10 PM EDT, 0 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 28, 4:13 PM EDT	Heat Advisory	GYX	Androscoggin, Cumberland, Kennebec, Knox, Lincoln, Sagadahoc and 2 more	28 hr
Jun 28, 4:41 PM EDT	Special Weather Statement	GYX	Androscoggin	34 min
Jun 28, 7:58 PM EDT	Special Weather Statement	GYX	Oxford	32 min
Jun 28, 4:09 PM EDT	Special Weather Statement	GYX	Carroll	36 min
Jun 28, 5:41 PM EDT	Special Weather Statement	GYX	Coos	34 min
Jun 28, 6:15 PM EDT	Severe Thunderstorm Warning	GYX	Carroll, Grafton	21 min
Jun 28, 6:36 PM EDT	Special Weather Statement	GYX	Coos	24 min
Jun 28, 6:42 PM EDT	Special Weather Statement	GYX	Grafton	33 min
Jun 28, 6:59 PM EDT	Special Weather Statement	GYX	Grafton	31 min
Jun 28, 7:38 PM EDT	Special Weather Statement	GYX	Grafton	37 min

Nearby

Special Weather Statements in New Hampshire, 2021 Every special weather statement in 2021

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.