SPC MD 142

MD 0142 CONCERNING FREEZING RAIN FOR PORTIONS OF EASTERN NEW YORK INTO SOUTHERN NEW ENGLAND Mesoscale Discussion 0142 NWS Storm Prediction Center Norman OK 0832 PM CST Thu Mar 05 2026 Areas affected...portions of eastern New York into southern New England Concerning...Freezing rain Valid 060232Z - 060830Z SUMMARY...Light to moderate freezing rain has begun across portions of eastern New York into southern New England and is expected to continue over the next 4-6 hours, especially for high elevations. DISCUSSION...DCVA ahead of an approaching mid-level shortwave trough will overspread portions of the Northeast over the next 4-6 hours. Coupled with increasing 850 mb warm air advection, this is expected to support an expansion of light to moderate freezing rain rates already noted at some ASOS sites across portions of eastern New York into southern New England. While regional surface temperatures are hovering at or just above freezing in the low-to-mid 30s, modest surface temperature decreases are expected over the next couple of hours given weak surface cold air advection and evaporative cooling amidst surface wet bulb temperatures near freezing. The greatest potential for freezing rain rates to exceed 0.06"/3 hours is expected across areas of higher terrain, particularly across the eastern Catskill Mountains, Berkshires, Litchfield Hills, and Worcester Hills. Rates are generally expected to remain lighter within the intermediate Valleys owing to marginally warmer surface temperatures, but heavier rates may be supported should stronger surface CAA infiltrate these areas of lower terrain. Cooler low-to-mid level temperatures are expected to support snow as the primary precipitation type for areas farther north. ..Chalmers/Moore.. 03/06/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GYX...BOX...BTV...OKX...ALY... LAT...LON 41737137 41677218 41637295 41707339 41967393 42417441 43037466 43377452 43597381 43387319 43027216 42627152 42337121 41967122 41737137 Read more