Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z)...

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Weather Event April 13-18 COSPA Radar Summary

Transcript of Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z)...

Page 1: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

Weather EventApril 13-18

COSPA Radar Summary

Page 3: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

Colour Coding used on the maps

Colour coding used within the maps include; Light green = Light rain Dark green = Heavy Rain Light pink = Light freezing rain or freezing drizzle Dark pink = Moderate to heavy freezing rain Light blue = Light snow or ice pellets Dark blue = Moderate or heavy ice pellets or snow White Rings = 50 nautical mile range rings Red letters-YYZ = Airport Center

Page 4: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary0700am-Last hour of rain only

Page 5: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary0800am-Start of freezing rain

Page 6: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary0830am-Beginning of extended moderate freezing rain

Page 7: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary 0850am Moderate Ice pellets begin

Page 8: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary 0950am Moderate freezing drizzle resumes

Page 9: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary 1200pm-extended moderate freezing rain continues

Page 10: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 14 Weather Map Summary 630pm-Coming out of light freezing rain and entering period of no precipitation

Page 11: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 15 Weather Map Summaries

Page 12: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 15 Weather Map Summary0400am Extended light freezing period rain resumes

Page 13: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 15 Weather Map Summary 0600am, Heavier freezing rain/drizzle begins

Page 14: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 15 Weather map summary1000am Lighter freezing drizzle resumes

Page 15: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 15 Weather Map Summary655pm Light freezing drizzle continued all day

Page 16: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 16 Weather Map Summary

Page 17: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

April 16 Weather Map Summary830pm-April 15 returns to straight rain

Page 18: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

Weather Event Precipitation Totals

Page 19: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

Weather Event Precipitation Types

Following codes were used to describe weather details RA = Rain DZ = Drizzle FZRA = Freezing Rain PL = Ice Pellets FZDZ = Freezing Drizzle SN = Snow RASN = Rain Snow mix

Page 20: Weather Event April 13-18 COSPA Radar Summary...Weather Event Precipitation Totals Date Time (Z) Accum (mm/6hr) Type 14 April 00-06Z 4mm RA/DZ 06Z-12Z 0.8mm DZ/RA 12Z-18Z 16mm RA/FZRA/PL

Weather Event Precipitation Totals

Date Time (Z) Accum (mm/6hr) Type

14 April 00-06Z 4mm RA/DZ

06Z-12Z 0.8mm DZ/RA

12Z-18Z 16mm RA/FZRA/PL

18Z-24Z 19mm PL/SN/FZRA

15 April 00-06Z Trace FZRA

06Z-12Z 0.6mm FZRA/PL

12Z-18Z 11mm PL

18Z-24Z 5mm PL/FZRA/FZDZ

16 April 00-06Z 11mm FZRA/RA

06Z-12Z 8mm RA

12Z-18Z 7mm RA

18Z-24Z 3mm RA

17 April 00-06Z 0.8 RASN/SN

06Z-12Z Trace SN