1 / 60

The August 9, 2001 Lake Breeze Severe Weather Event Across New York and Western New England

The August 9, 2001 Lake Breeze Severe Weather Event Across New York and Western New England Thomas A. Wasula NOAA/NWS WFO at Albany Motivation CSTAR II Project Northeast Warm Season Severe Weather

Faraday
Download Presentation

The August 9, 2001 Lake Breeze Severe Weather Event Across New York and Western New England

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The August 9, 2001 Lake Breeze Severe Weather Event Across New York and Western New England Thomas A. Wasula NOAA/NWS WFO at Albany

  2. Motivation • CSTAR II Project • Northeast Warm Season Severe Weather • Identify the role terrain features and land/water boundaries (i.e. Great Lakes, Long Island Sound, Chesapeake Bay, etc.) have on convective development and evolution • Several case studies will analyzed and a climatology will attempt to be developed • Mesoscale datasets (observational and model)

  3. Contributors to CSTAR II Project • Thomas Niziol, (MIC) WFO at Buffalo • Bob LaPlante, (SOO) WFO at Cleveland • Steven Zubrick, (SOO) WFO at Sterling • Dr. Lance Bosart, University at Albany • Dr. Daniel Keyer, University at Albany • Warren Snyder, (SOO) WFO at Albany

  4. Data • Surface and Upper Air Data (SPC) • Soundings from SPC archive • 40-km RUC, 80 km ETA grids • Satellite imagery • Radar data (High resolution KENX Archive Level IV)

  5. Background August 9, 2001 Event • A hot and very humid air mass was in place over NY and New England • Surface temps ranging from 32˚C to 37˚C (Syracuse high temp of 100˚F <ASOS>) • Surface dewpoints 20-25˚C coupled with large values of surface based CAPE (exceeding 2000 J/kg) • Numerous reports of straight line wind damage (60 to 80 mph) in the Mohawk Valley and hail to the size of hen eggs (2 inches or 5.1 cm)

  6. Severe Weather Reports

  7. Storm Reports across Northeast • NY-VT-NH-ME • 21 Wind Reports • 2 Hail Reports

  8. 9 AUG 2001/1200 UTC 500 hPa Raob Heights, Temps and Isotachs www.spc.noaa.gov

  9. 9 AUG 2001/1200 UTC 850 hPa Raob Heights, Temps, Dewpoints and Isotachs www.spc.noaa.gov

  10. 9 AUG 2001/1200 UTC 250 hPa Raob Heights, Temps and Isotachs www.spc.noaa.gov

  11. 9 AUG 2001/1200 UTC ALB Sounding www.spc.noaa.gov

  12. 9 AUG 2001/1200 UTC BUF Sounding www.spc.noaa.gov

  13. 10 AUG 2001/0000 UTC BUF Sounding www.spc.noaa.gov

  14. 10 AUG 2001/0000 UTC ALB Sounding www.spc.noaa.gov

  15. Lake Ontario SST’s http://marine.rutgers.edu/mrs/sat_data/

  16. SPC1300 UTC and 1630 UTC DAY 1

  17. ETA: 9 August 2001/1200 UTC Initial Analysis MSLP (hPa) Solid lines and 1000-500 (hPa) thickness dashed 500 hPa Heights (dam) solid lines and Absolute Vorticity (10x-5s-1) shaded

  18. ETA: 9 August 2001/1200 UTC Initial Analysis 850 hPa Heights (dam) solid lines, and Theta-e (K) dashed and shaded (every 5K) 250 hPa Heights (dam) Solid lines and Isotachs (m s-1) shaded

  19. ETA: 9 AUG 2001/1200 UTC Initial Analysis 500 hPa Vorticity Advection (x10-10 s-1) shaded and Heights (dam) solid lines 250 hPa Heights (dam) solid lines and Isotachs (m s-1) shaded

  20. ETA: 9 August 2001/1200 UTC 6-hr and 12-hr Forecasts for 1800 UTC and 0000 UTC

  21. ETA: 9 August 2001/1200 UTC 6-hour Forecast for 18 UTC MSLP (hPa) Solid lines and 1000-500 (hPa) thickness dashed 500 hPa Heights (dam) solid lines and Absolute Vorticity (10x-5s-1) shaded

  22. ETA: 9 August 2001/1200 UTC 6-hour Forecast for 18 UTC 850 hPa Heights (dam) solid lines, and Theta-e (K) dashed and shaded (every 5K) 250 hPa Heights (dam) Solid lines and Isotachs (m s-1) shaded

  23. ETA: 9 AUG 2001/1200 UTC 6- hr forecast for 1800 UTC 700 hPa Heights (m) solid lines and omega (microbars/second); Warm colors indicate ascent and cool colors descent 850 hPa Winds (kts), 850-500 hPa lapse rates (°C) and theta-e (K) shaded

  24. ETA: 9 August 2001/1200 UTC 12-hour Forecast for 00 UTC MSLP (hPa) Solid lines and 1000-500 (hPa) thickness dashed 500 hPa Heights (dam) solid lines and Absolute Vorticity (10x-5s-1) shaded

  25. ETA: 9 August 2001/1200 UTC 12-hour Forecast for 0000 UTC 850 hPa Heights (dam) solid lines, and Theta-e (K) dashed and shaded (every 5K) 250 hPa Heights (dam) Solid lines and Isotachs (m s-1) shaded

  26. 1500 UTC 9 AUG 2001 Surface Analysis

  27. 1745 UTC 9 AUG 2001 Visible Satellite

  28. 1800 UTC 9 AUG 2001 Surface Analysis

  29. 1845 UTC 9 AUG 2001 Visible Satellite

  30. 2215 UTC 9 AUG 2001 Visible Satellite

  31. 40 km RUC Analyses 9 AUG 2001/1500-2200 UTC

  32. RUC: 9 August 2001/1500 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  33. RUC: 9 August 2001/1600 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  34. RUC: 9 August 2001/1700 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  35. RUC: 9 August 2001/1800 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  36. RUC: 9 August 2001/1800 UTC Analysis MSLP (hPa) Solid lines and 1000-500 hPa thickness (dam) Pressure tendency (mb/hour)

  37. RUC: 9 August 2001/1900 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  38. RUC: 9 August 2001/2000 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  39. RUC: 9 August 2001/2100 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  40. 2100 UTC 9 AUG 2001 Surface Analysis

  41. AUG 9 2001 2100 UTC Surface Analysis with Radar and Satellite www.unisys.com

  42. RUC: 9 August 2001/2200 UTC Analysis 2-meter Temps (˚C) Solid lines shaded 32˚C (every 2)and greater and 10 meter winds (knots) 2-meter Dewpoints (˚C) and 10 meter winds (knots)

  43. 0000 UTC 10 AUG 2001 Surface Analysis

  44. KENX Radar Analysis Highlights of the Severe Weather Event across New York and Western New England

  45. 1958 UTC KENX 0.5° Base Reflectivity

  46. 2100 UTC KENX 0.5° Base Reflectivity

  47. 2142 UTC KENX VIL Product

  48. 2141 UTC KENX Comp Ref X-Section Herkimer Co. Storm

  49. 2146 UTC KENX 0.5° SRM and MESO Product

More Related