Alert archive / New Hampshire / Special Weather Statements in 2016

Special Weather Statement, NWS Gray, ME

September 19, 2016Hillsborough County, New Hampshire

NWS Gray, ME issued this special weather statement at Sep 19, 2016, 4:16 AM EDT for Hillsborough County, New Hampshire. It was in force for 59 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: Sep 19, 2016, 4:16 AM EDT (08:16 UTC)
Expired: Sep 19, 2016, 5:15 AM EDT
In force: 59 min
Issued by: NWS Gray, ME

County Hillsborough County, NH

The radar

The Boston radar (KBOX), 119 km from the middle of the area, began a volume at 08:15 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 00:00Z, 8.3 hours before the alert went out and 144 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: 252 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1073 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 116 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 19, 3:50 AM EDT	Special Weather Statement	GYX	York	70 min
Sep 19, 4:25 AM EDT	Special Marine Warning	GYX		95 min
Sep 19, 4:56 AM EDT	Special Weather Statement	GYX	Cumberland	49 min
Sep 19, 1:43 AM EDT	Special Weather Statement	GYX	Cheshire, Hillsborough	47 min
Sep 19, 4:29 AM EDT	Areal Flood Advisory	GYX	Cheshire, Hillsborough	3 hr

Nearby

Special Weather Statements in New Hampshire, 2016 Every special weather statement in 2016

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.