WEATHERGURU wrote:Stormsfury take a look at the new euro. What is your opinion on snow for the lower lake area (Detroit, Mi)
the EC brings H5 s/w into the Pac NW tomorrow aftn...drops it into the four corners monday and western TX tuesday...surface low pressure begind to develop on TUE afternoon in south central OK. WED the s/w and associated h5 trough kick out into the midwest as surface low pressure deepens to 994mb just N of St. Louis. This has the POTENTIAL to become a MAJOR midwest winter storm from central and eastern iowa into central WI...possibly SE minneosta and the UP of Michigan in the short term.
I think the EC may be underdoing things here as the very strong height rises to the east of the neg tilted h5 trough would argue for a strengthening of the H5 s/w and the development of a closed low in addition to the fact that the trough its self has a negative tilt.
The fun part starts WED night and THU as surface low pressure translates eastward to central PA/NY and h5 closed low develops (which its should have much earlier) in response to the strengthening of the s/w and the strong downstream ridging. cold air (H85 temps fall to ~0C in detroit) wrapping around the H85 low will cause rain to change to SN on the back side. Severe wx will be a problem across the southern mid-atlantic and Southeast as H85 temps rise to near +10C in the warm sector as strong 50-60kt h85 speed maximum moves up from the south. h85 winds are south to southeasterly in the warm sector as H25 jet maximum punches in from the west. this would indicate impressive backing of winds w/ hgt and thus...the POTENTIAL for tornadoes given proper support for convection which is capible of producing tornados.
There should be two areas of heavy snowfall per tonights EC...the first is across the midwest running from roughly along an axis from Des Moines IA to Marquette MI...on TUE and WED with another with another area of heavy snow across the southern lakes WED Night and THU. Low pressure then bombs out across N Quebec at 979mb FRI. and YES DTX could see SIGNIFICANT snowfall from this system.
The key here is NO COASTAL transfer like the GFS was advertising. the System wraps up and bombs out into Quebec.
pure STJ energy in all it/s glory begins to eject out of the pacific into the Baja SAT. The EUS needs to watch this VERY closely for another potential MAJOR winter storm the week of the 15th. PV becomes established over Hudson/s bay following the event this week in the midwest.