A climatology and assessment of impactful freezing rain events from 2010 to 2019 in the Baltimore/Washington CWA

dc.contributor.advisorHoffman, Eric G.
dc.contributor.authorMaskell, Courtney P.
dc.contributor.otherAviles, Lourdes B.
dc.contributor.otherLasorsa, Brian
dc.descriptionFreezing rain events represent a challenge to the forecasters at the Baltimore/ Washington Weather Forecast Office (KLWX WFO). Even a trace or glaze of freezing rain can put the Northern Virginia traffic to a standstill. Cases analyzed for this research had a significant traffic impact, determined using cost analysis data. In order to improve understanding and forecasting, a climatology of these events in the County Warning Area (CWA) was created for the 10-year period 2010 to 2019. The number of freezing rain events per winter season (November to March) varied between 0 and 11 events, with no pattern or trend. Freezing rain events occurred most frequently during January, which does not match the monthly distribution of cold-air damming (CAD) occurrence. A subjective and composite analysis of the synoptic scale weather features showed that the events can be placed in three categories: Front to the South (FTTS) (19 out of 30 total events), Great Lakes Low (GLL) (6 out of 30 total events), and 搊ther.� Both the composites and case studies of events from the FTTS events showed that shallow low-level cold air associated with CAD was entrenched east of the Appalachians with lower tropospheric warm air advection. Dynamic forcing from the upper-level trough and jet streaks are further to the north and south (respectively).
dc.description.abstractElectronic Thesis or Dissertation
dc.titleA climatology and assessment of impactful freezing rain events from 2010 to 2019 in the Baltimore/Washington CWA
dc.typeelectronic thesis or dissertation
etdms.degree.disciplineDepartment of Atmospheric Science and Chemistry
etdms.degree.grantorPlymouth State University
etdms.degree.nameMaster of Science in Applied Meteorology
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