Alert archive / Maine / Wind Chill Advisories in 2017

Wind Chill Advisory 4, NWS Gray, ME

March 10, 201711 counties in Maine; 7 counties in New Hampshire

NWS Gray, ME issued this wind chill advisory at Mar 10, 2017, 3:02 AM EST for 11 counties in Maine; 7 counties in New Hampshire. It took effect at Mar 10, 2017, 11:00 PM EST. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued: Mar 10, 2017, 3:02 AM EST (08:02 UTC)
In effect from: Mar 10, 2017, 11:00 PM EST
Expired: Mar 12, 2017, 9:00 AM EDT
In force: 33 hr
Issued by: NWS Gray, ME

Counties Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Kennebec County, ME, Knox County, ME, Lincoln County, ME, Oxford County, ME, Sagadahoc County, ME, Somerset County, ME, Waldo County, ME, York County, ME, Belknap County, NH, Carroll County, NH, Coos County, NH, Grafton County, NH, Merrimack County, NH, Strafford County, NH, Sullivan County, NH

The radar

The Portland,ME radar (KGYX), 33 km from the middle of the area, began a volume at 08:07 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, 8.0 hours before the alert went out and 304 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: 1409 m above ground
0-6 km bulk shear: 104 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 167 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 wind chill advisory 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 wind chill advisory went out at Mar 10, 2:42 AM EST, 20 minutes earlier.

Area forecast discussion, Mar 10, 2:42 AM EST, 20 minutes before

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Hazardous weather outlook, Mar 10, 2:58 AM EST, 4 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
Mar 9, 7:09 PM EST	Small Craft Advisory	GYX		4 hr
Mar 10, 2:54 AM EST	Gale Warning	GYX		48 hr
Mar 10, 2:54 AM EST	Small Craft Advisory	GYX		48 hr
Mar 10, 2:54 AM EST	Heavy Freezing Spray Advisory	GYX		33 hr
Mar 10, 3:42 PM EST	Wind Chill Warning	GYX	Franklin, Oxford, Somerset	41 hr

Nearby

Wind Chill Advisories in Maine, 2017 Wind Chill Advisories in New Hampshire, 2017 Every wind chill advisory 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.