Alert archive / Maine / Wind Chill Advisories in 2019

Wind Chill Advisory 9, NWS Gray, ME

December 18, 2019Franklin County, Oxford County, Maine; Coos County, New Hampshire

NWS Gray, ME issued this wind chill advisory at Dec 18, 2019, 3:40 PM EST for Franklin County, Oxford County, Maine; Coos County, New Hampshire. It took effect at Dec 19, 2019, 1:00 AM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Dec 18, 2019, 3:40 PM EST (20:40 UTC)
In effect from
Dec 19, 2019, 1:00 AM EST
Expired
Dec 19, 2019, 12:36 PM EST
In force
12 hr
Issued by
NWS Gray, ME

Counties Franklin County, ME, Oxford County, ME, Coos County, NH

The radar

The Portland,ME radar (KGYX), 103 km from the middle of the area, began a volume at 20:42 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, 8.7 hours before the alert went out and 330 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-pSkew-T log-p diagram, Albany, NY at 12:00Z on 2019-12-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 2019-12-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -80 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
768 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
-80 m²/s²
0-3 km storm-relative helicity
-44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 17, 8:02 PM ESTSpecial Weather StatementGYXAndroscoggin, Lincoln, Sagadahoc, Waldo88 min
Dec 18, 2:40 AM ESTGale WarningGYX34 hr
Dec 18, 3:29 PM ESTSpecial Weather StatementGYXOxford61 min
Dec 18, 4:14 PM ESTSpecial Weather StatementGYXCumberland46 min
Dec 18, 4:33 PM ESTSpecial Weather StatementGYXOxford57 min
Dec 18, 4:47 PM ESTSpecial Weather StatementGYXCumberland43 min
Dec 18, 5:02 PM ESTWinter Weather AdvisoryGYXKnox, Somerset, Waldo10 hr
Dec 18, 5:10 PM ESTSnow Squall WarningGYXCumberland, York35 min
Dec 18, 5:43 PM ESTSnow Squall WarningGYXCumberland, Sagadahoc32 min
Dec 18, 5:46 PM ESTSpecial Weather StatementGYXKennebec59 min
Dec 18, 6:08 PM ESTSpecial Weather StatementGYXSagadahoc67 min
Dec 18, 6:15 PM ESTSpecial Weather StatementGYXOxford60 min
Dec 18, 6:18 PM ESTSnow Squall WarningGYXOxford57 min
Dec 18, 6:36 PM ESTSpecial Weather StatementGYXKennebec54 min
Dec 18, 6:47 PM ESTSpecial Weather StatementGYXLincoln43 min
Dec 18, 3:36 PM ESTSpecial Weather StatementGYXCarroll54 min
Dec 18, 4:10 PM ESTSpecial Weather StatementGYXRockingham35 min
Dec 18, 4:25 PM ESTSpecial Weather StatementGYXSullivan50 min
Dec 18, 4:57 PM ESTSpecial Weather StatementGYXBelknap48 min
Dec 18, 4:58 PM ESTSpecial Weather StatementGYXGrafton62 min
Dec 18, 5:08 PM ESTSnow Squall WarningGYXBelknap, Carroll, Grafton, Merrimack37 min
Dec 18, 5:33 PM ESTSnow Squall WarningGYXCarroll, Coos, Grafton27 min
Dec 18, 5:35 PM ESTSnow Squall WarningGYXBelknap, Carroll, Strafford25 min
Dec 18, 5:57 PM ESTSpecial Weather StatementGYXCarroll63 min
Dec 18, 6:13 PM ESTSpecial Weather StatementGYXCarroll62 min
Dec 18, 6:14 PM ESTSpecial Weather StatementGYXGrafton61 min
Dec 18, 6:44 PM ESTSpecial Weather StatementGYXSullivan46 min
Dec 18, 6:51 PM ESTSpecial Weather StatementGYXCarroll54 min

Nearby

Wind Chill Advisories in Maine, 2019Wind Chill Advisories in New Hampshire, 2019Every wind chill advisory in 2019

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.