Alert archive / New York / Mesoscale Discussions in 2014
Mesoscale Discussion 7
The Storm Prediction Center issued this mesoscale discussion at Jan 5, 2014, 5:41 PM EST for 4 states. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 5, 2014, 5:41 PM EST (22:41 UTC)
- Expired
- Jan 5, 2014, 9:45 PM EST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 40 counties
Franklin County, ME, Oxford County, ME, Carroll County, NH, Coos County, NH, Grafton County, NH, Sullivan County, NH, Albany County, NY, Clinton County, NY, Columbia County, NY, Delaware County, NY, Essex County, NY, Franklin County, NY, Fulton County, NY, Greene County, NY, Hamilton County, NY, Herkimer County, NY, Lewis County, NY, Montgomery County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Ulster 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 22:43 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, 10.7 hours before the alert went out and 162 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
- 1456 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
918
ACUS11 KWNS 052242
SWOMCD
SPC MCD 052241
MEZ000-NHZ000-VTZ000-MAZ000-NYZ000-060245-
MESOSCALE DISCUSSION 0007
NWS STORM PREDICTION CENTER NORMAN OK
0441 PM CST SUN JAN 05 2014
AREAS AFFECTED...UPSTATE NY...VT...MUCH OF NH...WRN ME
CONCERNING...FREEZING RAIN
VALID 052241Z - 060245Z
SUMMARY...FREEZING RAINFALL RATES AOA 0.05 IN/HR WILL BE POSSIBLE
THIS EVENING/NIGHT FROM UPSTATE NY INTO WRN ME.
DISCUSSION...LOW-LEVEL SLY JET IS FORECAST TO STRENGTHEN TO 50+ KT
AS CYCLOGENESIS TAKES PLACE OVER THE LOWER GREAT LAKES REGION. AS
THIS OCCURS...7 DEG C WARM NOSE CENTERED NEAR 850 MB WILL BECOME
POSITIONED ABOVE SUB-FREEZING SURFACE TEMPERATURES. IN
ADDITION...ISENTROPIC UPGLIDE/LOW-LEVEL WAA WILL AID IN SUSTAINING
SHOWERY PRECIPITATION SPREADING NEWD FROM UPSTATE NY INTO VT/NH AND
WRN ME. AS A RESULT...FREEZING RAINFALL RATES LOCALLY EXCEEDING 0.05
IN/HR WILL BE POSSIBLE THIS EVENING/NIGHT. WITH TIME...SELY SURFACE
WINDS WILL GRADUALLY LEAD TO ABOVE FREEZING SURFACE
TEMPERATURES...SUCH THAT FREEZING RAIN WILL COME TO AN END OVER NY
DURING THE 00-06Z TIME PERIOD...AND VT/NH/WRN ME FROM 06-12Z.
..GARNER.. 01/05/2014
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...GYX...BOX...BTV...ALY...BGM...BUF...
LAT...LON 44507000 41887414 42097533 43887549 45307415 45427049
44507000Nearby
Mesoscale Discussions in New York, 2014Mesoscale Discussions in Vermont, 2014Mesoscale Discussions in New Hampshire, 2014Every mesoscale discussion in 2014
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.