Alert archive / Maine / Snow Squall Warnings in 2019

Snow Squall Warning 7, NWS Gray, ME

January 30, 20196 counties in Maine

NWS Gray, ME issued this snow squall warning at Jan 30, 2019, 8:35 PM EST for 6 counties in Maine. It was in force for 55 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
Jan 30, 2019, 8:35 PM EST (01:35 UTC)
Expired
Jan 30, 2019, 9:30 PM EST
In force
55 min
Issued by
NWS Gray, ME
Area
Storm-based polygon

Counties Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Oxford County, ME, Somerset County, ME, York County, ME

The radar

The Portland,ME radar (KGYX), 57 km from the middle of the area, began a volume at 01:35 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

Chatham, MA (KCHH), launched 00:00Z, 1.6 hours before the alert went out and 305 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, Chatham, MA at 00:00Z on 2019-01-31Temperature 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, Chatham, MA at 00:00Z on 2019-01-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.1939587897117136156175Sfc1 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
1061 m above ground
0-6 km bulk shear
110 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
232 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
Jan 30, 7:43 PM ESTSpecial Weather StatementGYXYork47 min
Jan 30, 7:45 PM ESTSpecial Weather StatementGYXFranklin, Oxford45 min
Jan 30, 7:54 PM ESTSnow Squall WarningGYXOxford, York51 min
Jan 30, 9:16 PM ESTSnow Squall WarningGYXAndroscoggin, Cumberland, Franklin, Kennebec, Lincoln, Oxford and 1 more59 min
Jan 30, 10:13 PM ESTSpecial Weather StatementGYXLincoln, Sagadahoc, Waldo62 min
Jan 31, 2:56 AM ESTSmall Craft AdvisoryGYX40 hr
Jan 31, 2:56 AM ESTHeavy Freezing Spray WarningGYX24 hr
Jan 31, 2:17 PM ESTWind Chill AdvisoryGYXFranklin, Oxford, Somerset19 hr
Jan 30, 7:10 PM ESTSpecial Weather StatementGYXCarroll, Grafton50 min
Jan 30, 7:23 PM ESTSpecial Weather StatementGYXCarroll52 min
Jan 30, 8:06 PM ESTSpecial Weather StatementGYXCarroll39 min

Nearby

Snow Squall Warnings in Maine, 2019Every snow squall warning 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.