Alert archive / New York / Mesoscale Discussions in 2008
Mesoscale Discussion 310
The Storm Prediction Center issued this mesoscale discussion at Feb 26, 2008, 6:18 PM EST for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 26, 2008, 6:18 PM EST (23:18 UTC)
- Expired
- Feb 27, 2008, 12:15 AM EST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 41 counties
Berkshire County, MA, Franklin County, MA, Androscoggin County, ME, Cumberland County, ME, Franklin County, ME, Kennebec County, ME, Oxford County, ME, Waldo County, ME, Belknap County, NH, Carroll County, NH, Cheshire County, NH, Coos County, NH, Grafton County, NH, Hillsborough County, NH, Merrimack County, NH, Strafford County, NH, Sullivan County, NH, Albany County, NY, Essex County, NY, Fulton County, NY, Hamilton County, NY, Herkimer County, NY, Montgomery County, NY, Otsego County, NY, Rensselaer County, NY, Saratoga County, NY, Schenectady County, NY, Schoharie County, NY, Warren County, NY, Washington County, NY, Addison County, VT, Bennington County, VT, Caledonia County, VT, Chittenden County, VT, Essex County, VT, Lamoille County, VT, Orange County, VT, Rutland County, VT, Washington County, VT, Windham County, VT, Windsor County, VT
The radar
The Burlington radar (KCXX), 130 km from the middle of the area, began a volume at 23:20 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
Gray, ME (KGYX), launched 12:00Z, 11.3 hours before the alert went out and 158 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
- 1227 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 145 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 262318 SWOMCD SPC MCD 262318 MEZ000-NHZ000-MAZ000-VTZ000-NYZ000-270515- MESOSCALE DISCUSSION 0310 NWS STORM PREDICTION CENTER NORMAN OK 0518 PM CST TUE FEB 26 2008 AREAS AFFECTED...ERN NY...NW MA...VT...NH...SRN ME CONCERNING...HEAVY SNOW VALID 262318Z - 270515Z SNOWFALL WILL CONTINUE TO OVERSPREAD THE AREA AND INCREASE IN INTENSITY WITH SNOWFALL RATES OF 1 TO 2 INCHES PER HOUR COMMON OVER MUCH OF THE AREA. MAIN UPPER TROUGH AND SUPPORT CONTINUE TO INTENSIFY LATE THIS AFTERNOON WITH ONE SHORT WAVE EXITING BASE OF TROUGH ACROSS EASTERN NY AT THE BEGINNING OF THE PERIOD. 21 UTC RUC AND 15 UTC SREF ARE SIMILAR WITH THE SUB-FREEZING TEMPERATURES IN LOWEST 3 TO 5K FT REMAINING NEARLY STATIONARY TO THE NORTHWEST OF A LINE FROM SERN NY THROUGH NWRN MA/SERN NH AND NEWD ALONG MA COASTLINE. 15 UTC SREF FORECAST OF MEAN PRECIP AMOUNTS OVER THE AREA HAVE INCREASED FROM 0.10 INCH PER 3 HOURS TO AT OR ABOVE 0.25 INCH PER 3 HOURS. VERY STRONG UPWARD MOTION THROUGH DENDRITE GROWTH REGION ASSOCIATED WITH THE STRONG UPPER LEVEL DIVERGENCE COUPLED WITH STRONG FRONTOGENETICAL FORCING IN 850 TO 700 MB LEVEL WILL RESULT IN THE HEAVIEST SNOWFALL RATES OF 2 INCHES PER HOUR. SNOWFALL WILL BEGIN TO DIMINISH IN ERN NY DURING EARLY EVENING WITH HEAVIER SNOWFALL CONTINUING THROUGH THE END OF THE PERIOD ACROSS NH AND SRN ME. NEAR COASTAL SECTIONS OF SRN ME MAY SEE A MIX OF RAIN/SNOW OR CHANGE OVER TO RAIN. ..BOTHWELL.. 02/26/2008 ...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...CAR...GYX...BOX...BTV...ALY...BGM...BUF... 42647522 43177544 43837525 44287422 44577311 44687227 44897087 45236918 45016869 44736849 44316944 43887004 43097114 42997139 42897168 42637201 42487237 42407271 42367318 42397392
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 26, 12:13 PM EST | Mesoscale Discussion | SPC | Albany, Broome, Cayuga, Chemung, Chenango, Cortland and 16 more | 6 hr |
Nearby
Mesoscale Discussions in New York, 2008Mesoscale Discussions in Vermont, 2008Mesoscale Discussions in New Hampshire, 2008Every mesoscale discussion in 2008
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.