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lester

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Everything posted by lester

  1. 29.8/12.5, NE Baltimore City
  2. freezing drizzle, 28/19, NE Baltimore City
  3. 4.7" off of 0.48" of liquid here in NE Baltimore according to a nearby CoCoRaHS station
  4. 35.5/31.5, flurries, NE Baltimore City
  5. 39.9/30.9, NE Baltimore City (Lauraville)
  6. light snow, down to 33.4/33.4, NE Baltimore City, 0.11" of liquid so far according to a nearby weather station
  7. Best of luck everyone! Current obs: 29.8/19.1, NE Baltimore City
  8. This may be the worst forecast map I've ever seen
  9. Rain/sleet mix in Forestville, a trace of sleet so far, 33/29
  10. SUMMARY...Moderate to heavy snow now developing across parts of central Virginia and Maryland is expected to persist through mid to late morning, with rates (around or in excess of 1 inch per hour) likely maximizing in the 6-10 AM EST time frame. DISCUSSION...A broadly cyclonic 50-70+ kt 500 mb jet streak continues to gradually develop eastward across the northern Gulf Coast states, with its exit region now beginning to nose to the lee of the southern Appalachians, toward the southern Mid Atlantic coast through mid to late morning. It appears an associated broad area of strong upward vertical motion will include a period of strengthening lower/mid-tropospheric frontogenesis across Virginia and adjacent portions of the Mid Atlantic. Across central Virginia into adjacent portions of central Maryland, where temperature profiles are expected to remain entirely below freezing, models indicate that lift may begin to become maximized within the favorable mixed-phase layer for dendritic ice crystal growth by daybreak, and continue through mid to late morning. Aided by relatively high precipitable water content (up to around .70 inches), one or more bands of heavy snow, at rates around or in excess of 1 inch per hour, appear possible. Forecast soundings suggest that this may persist for a 3-4 hour period at any particular location, generally in a narrow corridor from the vicinity of the Blue Ridge, north of Roanoke VA, east/northeastward through southern portions of the Greater Washington D.C./Baltimore Metropolitan Area.
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