Alert archive / New York / Mesoscale Discussions in 2007
Mesoscale Discussion 3
The Storm Prediction Center issued this mesoscale discussion at Jan 1, 2007, 2:00 AM EST for 5 states. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 1, 2007, 2:00 AM EST (07:00 UTC)
- Expired
- Jan 1, 2007, 7:00 AM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 46 counties
Essex County, MA, Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Oxford County, ME, Sagadahoc County, ME, York County, ME, Belknap County, NH, Carroll County, NH, Cheshire County, NH, Coos County, NH, Grafton County, NH, Hillsborough County, NH, Merrimack County, NH, Rockingham County, NH, Strafford County, NH, Sullivan County, NH, Clinton County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Montgomery County, NY, Oneida County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, St. Lawrence County, NY, Warren County, NY, Washington County, NY, Addison County, VT, Bennington County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT, Franklin County, VT, Grand Isle County, VT, Lamoille County, VT, Orange County, VT, Orleans County, VT, Rutland County, VT, Washington County, VT, Windham County, VT, Windsor County, VT
The radar
The Burlington radar (KCXX), 70 km from the middle of the area, began a volume at 07:00 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, 7.0 hours before the alert went out and 167 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1204 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 010700 SWOMCD SPC MCD 010700 MEZ000-MAZ000-NHZ000-VTZ000-NYZ000-011200- MESOSCALE DISCUSSION 0003 NWS STORM PREDICTION CENTER NORMAN OK 0100 AM CST MON JAN 01 2007 AREAS AFFECTED...NRN NY/VT/NH CONCERNING...FREEZING RAIN VALID 010700Z - 011200Z ...FREEZING RAIN IS LIKELY OVERNIGHT ACROSS THE CHAMPLAIN VALLEY AND ADIRONDACK MTNS INTO VT AND NH. HRLY RATES MAY APPROACH 0.05 INCHES... SFC FREEZING LINE EXTENDS FROM ST LAWRENCE CO NY SOUTHEAST TO UTICA AND THEN NORTHEAST TOWARD SRN VERMONT. ALBANY NY IS WELL ABOVE FREEZING AS ARE LOCATIONS SOUTH OF THE INTERSTATE 90 CORRIDOR IN NY. FREEZING RAIN IS BEING REPORTED AT A NUMBER OF LOCATIONS ACROSS NRN NY...AND PORTIONS OF WRN VT. STRONG WAA PATTERN WILL CONTINUE OVERNIGHT...WITH 60-70KT LOW LEVEL JET FORECAST OVER NEW ENGLAND BY 09Z. LATEST VAD WIND DATA FROM THE BURLINGTON AND ALBANY RADARS SHOW STRONG VEERING PROFILES...WITH 50 KT SLY WINDS SAMPLED BELOW 1KM. STRONG LOW LEVEL THETA-E ADVECTION ALONG WITH LARGE SCALE SYNOPTIC LIFT WILL CONTINUE FOR SEVERAL HOURS...PROVIDING THE FORCING FOR WIDESPREAD PRECIPITATION. WET BULB TEMPS ARE IN THE TEENS IN PARTS OF NH AND VT WITH TEMPS IN THE TEENS AND 20S...SO SFC TEMPS WILL REMAIN BELOW FREEZING AT THE ONSET OF PRECIPITATION. COLD AIR MAY REMAIN TRAPPED IN THE CHAMPLAIN VALLEY OR OTHER LOW LYING ELEVATIONS ACROSS NERN NY...SO FZRA MAY BE LIKELY FOR SEVERAL MORE HOURS. EVENTUALLY FREEZING RAIN WILL SPREAD INTO ME LATER THIS MORNING. FORECAST SOUNDINGS SUGGEST FZRA MAY SPREAD INTO WRN PORTIONS OF ME BEFORE 12Z. SIGNIFICANT ACCUMULATIONS OF ICING ARE POSSIBLE...GIVEN HOURLY RATES OF A FEW HUNDREDTHS TO 0.05 INCHES AN HOUR FOR SEVERAL HOURS. ..TAYLOR.. 01/01/2007 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ...NOTICE... SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS. ATTN...WFO...GYX...BOX...BTV...ALY...BGM...BUF... 42597310 43037542 44297551 44977501 45027300 45207138 45297044 43976957 42647083
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 1, 7:43 AM EST | Mesoscale Discussion | SPC | Androscoggin, Franklin, Kennebec, Oxford, Penobscot, Piscataquis and 2 more | 6 hr |
Nearby
Mesoscale Discussions in New York, 2007Mesoscale Discussions in Vermont, 2007Mesoscale Discussions in New Hampshire, 2007Every mesoscale discussion in 2007
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.