SPC MD 67



MD 0067 CONCERNING FREEZING RAIN FOR NORTHEAST WISCONSIN THROUGH UPPER MICHIGAN

MD 0067 Image


Mesoscale Discussion 0067
NWS Storm Prediction Center Norman OK
0706 AM CST Mon Feb 04 2019

Areas affected...northeast Wisconsin through Upper Michigan

Concerning...Freezing rain 

Valid 041306Z - 041700Z

SUMMARY...Precipitation mainly in the form of freezing rain, mixed
with some sleet will persist this morning from northeast Wisconsin
through much of Upper Michigan. Rates will range from .03 to locally
up to .1 inches per hour.

DISCUSSION...Early this morning a band of precipitation with
freezing rain and sleet continues from northern WI through much of
Upper Michigan. The activity is developing north of a
quasistationary front where isentropic ascent has increased in
association with a southerly low-level jet downstream from a
progressive vorticity maximum over western WI. Warm advection
resulting from the low-level jet will maintain a melting layer
aloft, sufficient for the precipitation to fall mostly as freezing
rain through much of the morning as surface temperatures hover near
32F. RAP forecast soundings indicate a shallow unstable layer
evolving above where theta-e advection is maximized around 850 mb,
suggesting some convective enhancement is possible. Activity will
decrease from the west to east during the afternoon as subsidence
aloft develops eastward in wake of the shortwave trough.

..Dial.. 02/04/2019

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...APX...MQT...GRB...

LAT...LON   46188459 45978611 45738691 45498788 45218961 46498858
            46558657 46598457 46188459 

Read more



Source link

Editor
  • Editor
  • Website is owned by STL.News, LLC, but hosted, designed and maintained by WebTech Group (WTG). WTG is a St. Louis based web designed firm offering digital marketing services and news sites. We created RSSWX.News to help the major search engines easily find news direct from the source, which is the National Weather Service.