Alert archive / New Hampshire / Winter Storm Warnings in 2009

Winter Storm Warning 1, NWS Gray, ME

January 6, 2009Franklin County, Oxford County, Somerset County, Maine; 4 counties in New Hampshire

NWS Gray, ME issued this winter storm warning at Jan 6, 2009, 5:10 PM EST for Franklin County, Oxford County, Somerset County, Maine; 4 counties in New Hampshire. It took effect at Jan 7, 2009, 5:00 AM EST. It was in force for 22 hr. 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 6, 2009, 5:10 PM EST (22:10 UTC)
In effect from
Jan 7, 2009, 5:00 AM EST
Expired
Jan 8, 2009, 3:03 AM EST
In force
22 hr
Issued by
NWS Gray, ME

Counties Franklin County, ME, Oxford County, ME, Somerset County, ME, Carroll County, NH, Coos County, NH, Grafton County, NH, Sullivan County, NH

The radar

The Portland,ME radar (KGYX), 89 km from the middle of the area, began a volume at 22:08 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, 10.2 hours before the alert went out and 291 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 2009-01-06Temperature 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 2009-01-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -85 square meters per square second.1939587897117136156175194Sfc1 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
942 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
-85 m²/s²
0-3 km storm-relative helicity
-7 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 6, 3:26 AM ESTWinter Storm WatchGYXAndroscoggin, Cumberland, Franklin, Kennebec, Knox, Lincoln and 5 more14 hr
Jan 6, 3:29 AM ESTGale WatchGYX12 hr
Jan 6, 7:02 AM ESTSmall Craft AdvisoryGYX3 hr
Jan 6, 3:56 PM ESTSmall Craft AdvisoryGYX23 hr
Jan 6, 5:10 PM ESTWinter Weather AdvisoryGYXAndroscoggin, Cumberland, Kennebec, Knox, Lincoln, Sagadahoc and 2 more34 hr

Nearby

Winter Storm Warnings in New Hampshire, 2009Winter Storm Warnings in Maine, 2009Every winter storm warning in 2009

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.