Winter Weather and Aviation. Mike Bardou Meteorologist National Weather Service Romeoville, IL Jonathan Leffler Meteorologist Center Weather Service Unit Aurora, IL. Summary. NWS Background Weather Basics Hazards Planning. Weather Forecast Offices (WFO).
National Weather Service Romeoville, IL
Center Weather Service Unit Aurora, IL
Located within the City of Aurora, IL about 40 miles west of Downtown Chicago
Staffed by 4 NWS meteorologists from 5:00 am – 9:00 pm, 7 days a week.
Typical ahead of warm fronts
Can occur with weak movement of warmer air over snow cover…can be prolonged
Strong low level inversion develops (warm air moving over cold air)
South or east component to the wind is favorable
Most common in cold season (fall-winter) as jet speeds increase
Associated with speed & directional shears (horizontal & vertical) - not just jet strength
Satellite clues and soundings can help
-Limited observational data above the surface
-They help us with the forecast
-They also help other pilots