 earthlab winter storm case studi winter storm a case studi what is a case studi? all storm stori the stori storm the charact storm stori peopl anim instead weather system wind temperatur rain snow sunshin place meteorologist call storm stori case studi thi case studi -- storm stori -- winter storm dump record 19 7 inch snow columbia missouri januari 18 januari 21 1995 it left 12 6 inch snow madison wisconsin singl dai other town snow record storm heavi snow high wind it big strong storm besid make lot snow storm produc ten tornado southern unit state file localhost d itu web 20mine project uw-can-data gif snowband snochtct gif larg size imag file localhost d itu web 20mine project uw-can-data gif snowband 1-3 snowchrt gif small size imag snow band total accumul 19 januari 1995 prepar jonathon martin depart atmospher ocean scienc univers wisconsin madison thi figur total snowfal centimet 19 jan 1995 storm line connect point report snowfal amount centimet band 10 cm snow depth indic shade code tabl how did the storm begin? thi storm began storm a cold front canada texa the wind cold front texa began blow counterclockwis pattern file localhost d itu web 20mine project uw-can-data gif noaa surfac 950118ns gif surfac map 18 januari 1995 a warm front east coast unit state in south gulf state warm humid air lot fog east cold front in northern canada border snow fall cold air there rain indiana south in texa louisiana thunderstorm rainshow file localhost d itu web 20mine project uw-can-data gif radar 1812ru gif radar map 1200 z 18 januari 1995 what about that upper air? there lot air easili the air earth surfac air but meteorologist call upper air we level earth's surfac 5000 feet surfac midwest thi level small plane fly the level 18 000 feet half region weather occur the highest level 30 000 feet jet aircraft fly thi level strong wind call jet stream in three level upper air weather condit happen time in storm stori lot happen file localhost d itu web 20mine project uw-can-data gif noaa 500mb 950118n5 gif 500 mb map 18 januari 1995 two cyclon pattern join trough low air pressur lowest upper air level in level deep trough low pressur led canada texa and top level upper air low air pressur surround region 115 mile hour wind on the surfac 12 hour later file localhost d itu web 20mine project uw-can-data gif noaa surfac 950119ns gif surfac map 19 januari 1995 a low pressur area form east texa move northeast more cyclon wind form thunderstorm rain happen mississippi louisiana as storm continu move northeast temperatur cool heavi snow began fall oklahoma missouri jump back to the upper air the low pressur area upper air move it move east in lowest level strong cyclon wind pattern arkansa the wind move faster in middl layer low pressur area canada texa in highest air level thin low pressur area form canada texa veri fast wind call jet wind jet stream race alongsid low pressur area some wind 126 mile hour texa file localhost d itu web 20mine project uw-can-data gif noaa 500mb 950119n5 gif 500 mb map 19 januari 1995 back down on the surfac file localhost d itu web 20mine project uw-can-data gif radar 1912ru gif radar map 1200 z 19 januari 1995 the low pressur area surfac move northeast night by midnight reach memphi tennesse farther south rain fall warm air to north area snow snow by morn cyclon wind move north mississippi river travel st loui missouri wind strong sub-freez temperatur great lake region plain state snow fall southeast wisconsin iowa missouri arkansa the storm reach northwest indiana thursdai even strong northwest wind pull cold air south the snow belt northeastern wisconsin mississippi river vallei southern missouri eastward western kentucki by fridai low pressur area surfac move east slowli the cold front caught warm front cape cod massachusett snow thin region file localhost d itu web 20mine project uw-can-data gif noaa surfac 950120ns gif surfac map 20 januari 1995 what's happen up there? in upper air region interest thing happen the low pressur area three level move end stack three giant bagel top by time happen storm lose strength snow turn rain by saturdai morn storm file localhost d itu web 20mine project uw-can-data htm return text level page file localhost d itu web 20mine project uw-can-data webdata topic htm return topic page file localhost d itu web 20mine project uw-can-data interm casestud wintstrm htm switch higher read level 