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SAAWSO HIGH IMPACT WEATHER EVENTS

SAAWSO HIGH IMPACT WEATHER EVENTS. Ismail Gultepe EC, Cloud Physics and Severe Weather Research Section Toronto, Ontario M3H 5T4, Canada. OBJECTIVES. EMPHASIZE HIGH IMPACT WEATHER EVENTS -SURFACE OBSERVATIONS -REMOTE SENSING OBSERVATIONS -FORECAST MODELS -INTEGRATED DATA

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SAAWSO HIGH IMPACT WEATHER EVENTS

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  1. SAAWSO HIGH IMPACT WEATHER EVENTS Ismail Gultepe EC, Cloud Physics and Severe Weather Research Section Toronto, Ontario M3H 5T4, Canada

  2. OBJECTIVES • EMPHASIZE HIGH IMPACT WEATHER EVENTS • -SURFACE OBSERVATIONS • -REMOTE SENSING OBSERVATIONS • -FORECAST MODELS • -INTEGRATED DATA • FOCUS ON SATELLITE BASED ALGORITHMS AND NOWCASTING

  3. HIGH IMPACT WEATHER EVENTS • LOW VISIBILITY AND CEILING • HEAVY SNOW • FREEZING FOG, DRZ, AND RAIN • HEAVY RAIN AND DRIZZLE • STRONG GUST AND WIND SHEAR • SNOW SQUALLS

  4. ANALYSIS ISSUES • MEASUREMENT UNCERTAINTY • -CALIBRATION • -INSTRUMENT RESPONSE • -THRESHOLDS • ANALYSIS UNCERTAINTY • TIME AND SPACE VARIABILITY

  5. MAP FOR THE PROJECT REGION FLATROCK HOLYROOD ST. JOHN’S BAY BULLS

  6. IMPORTANT CASES FOR HIGH IMPACT WEATHER EVENTS • Jan 10 [heavy snow: >50 cm/day] • Jan 17/18 [heavy snow, riming, splint.] • Jan 22 [heavy snow] • Jan23-26 [snow squalls/blowing snow] • Jan 31 [gust/IP/RN] • Feb 2 [heavy snow] • Feb 4[fog/DRZ] • Feb 20-22 [Icing event] • April 6 [heavy RN] • April 19 [wet snow, IP, rain, drizzle]

  7. WINTER SNOW STORM • MORE THAN 50 CM SNOW/DAY • 60% (350000 PEOPLE) DID NOT HAVE ELECTRICITY • 4-7 DAYS NO ELECTRICITY • ALL THE FLIGHTS CANCELLED DURING STORM

  8. JAN 10 SNOW STORM

  9. RADAR IMAGES

  10. GOES IMAGES

  11. JAN 10 2013-SNOW STORM

  12. JAN-10/11 SNOW STORM

  13. GCIP PARTICLE SHAPES

  14. LPM MEASUREMENTSPWD MEASUREMENTS

  15. January 10

  16. WIND 3DApril 6

  17. April 6

  18. Jan 22 heavy snow case

  19. JAN 17-NEEDLES-SPLINTERING

  20. JAN 17-heavy riming

  21. Particle shape discrimination

  22. JANUARY 24 SNOW SQUALLS

  23. Jan24-LPM SNOW PR

  24. JAN. 18riming

  25. FEBRUARY 2 SNOW PELLETS

  26. FEB. 4 FOG/DRZ

  27. Feb.4 -CL51 Ceilometer

  28. FEB. 4-5

  29. APRIL 6-VIS HEAVY RAIN

  30. APRIL 19 WET SNOW-DRZ CASE • 7 RADIOSONDES WERE RELEASED: • [0845;1100;1300;1530;1730;2045 LST] • WETSNOW-IP-RAIN-DRIZZLE FROM 11AM TO 7 PM

  31. APRIL 19

  32. FUTURE WORK • Snow type prediction using LPM • Improve Fog/precipitation Vis parameterizations • Develop algorithms for satellite retrievals of cold cloud microphysics • Include new scanning Doppler Lidar and UAV platforms for winter project

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