1 / 57

Life-Cycle of Tropical Storm Erin (2007)

Life-Cycle of Tropical Storm Erin (2007). Thomas J. Galarneau, Jr., and Lance F. Bosart University at Albany, State University of New York Albany, NY *with contributions from Roger Edwards, SPC 9th Annual Northeast Regional Operational Workshop 8 November 2007. Motivation.

zinnia
Download Presentation

Life-Cycle of Tropical Storm Erin (2007)

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. Life-Cycle ofTropical Storm Erin (2007) Thomas J. Galarneau, Jr., and Lance F. Bosart University at Albany, State University of New York Albany, NY *with contributions from Roger Edwards, SPC 9th Annual Northeast Regional Operational Workshop 8 November 2007

  2. Motivation • Widespread post-landfall rainfall and wind associated with Tropical Storm (TS) Erin during 16–23 August 2007

  3. Goals • Overview large-scale environment • Examine aspects of TS Erin life-cycle in more detail: • Incipient development to landfall along TX coast • Widespread TX rains/reintensification over OK • “PRE” over WI • KY rains and VA/NC MCS

  4. Goals • Overview large-scale environment • Examine aspects of TS Erin life-cycle in more detail: • Incipient development to landfall along TX coast • Widespread TX rains/reintensification over OK • “PRE” over WI • KY rains and VA/NC MCS

  5. Data Sources • 2.5 NCEP–NCAR Reanalysis from ESRL • 1.0 NCEP–GFS final analysis from NCAR • Soundings from University of Wyoming • Standard surface data from UAlbany • OK Mesonet data from OK Climo Survey • Radar imagery from NCAR and SPC • Precipitation analyses from NPVU • Trajectories from NOAA HYSPLIT model

  6. 250 hPa  (dam) mean and anomaly and vector wind (standard barbs) mean 9–23 August 2007 21 19 23 17 Erin track 15 13 2.5 NCEP–NCAR Reanalysis

  7. 250 hPa  (dam) mean and anomaly and vector wind (standard barbs) mean 9–23 August 2007 PRE 00–12Z/19 intense rains 06Z/21–18Z/21 reintensification 00–06Z/19 21 19 23 MCS 21Z/21–06Z/22 intense rains 12Z/16–18Z/18 17 landfall 06Z/16 15 13 2.5 NCEP–NCAR Reanalysis

  8. reintensification over Oklahoma, and Wisconsin PRE North Carolina/Virginia MCS Kentucky rains landfall DT  (K) 850–DT shear (m s1) and CI (K) Time/Date (UTC) 1.0 GFS Final Analyses Azimuth average of DT  (K), 850 hPa–DT wind shear (m s1), and CI (K)

  9. Incipient development–landfall0000 UTC 8–1200 UTC 16 Aug 2007

  10. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x L=“Erin” X=DT disturbance =DT trough 1200 UTC 7 August 2007 1.0 NCEP–GFS Analyses

  11. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 8 August 2007 1.0 NCEP–GFS Analyses

  12. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 9 August 2007 1.0 NCEP–GFS Analyses

  13. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 10 August 2007 1.0 NCEP–GFS Analyses

  14. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 11 August 2007 1.0 NCEP–GFS Analyses

  15. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 12 August 2007 1.0 NCEP–GFS Analyses

  16. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 13 August 2007 1.0 NCEP–GFS Analyses

  17. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x L L=“Erin” X=DT disturbance =DT trough 1200 UTC 14 August 2007 1.0 NCEP–GFS Analyses

  18. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x L x L=“Erin” X=DT disturbance =DT trough 1200 UTC 15 August 2007 1.0 NCEP–GFS Analyses

  19. DT  (K), 850–DT shear (knots), and 925–850 hPa  (10-4 s-1) x x L x L=“Erin” X=DT disturbance =DT trough 1200 UTC 16 August 2007 1.0 NCEP–GFS Analyses

  20. TX rains andOK reintensification0000 UTC 17–0000 UTC 20 Aug 2007

  21. DT  (K) and vector wind (knots), and 925–850 hPa  (10-4 s-1) Source: NPVU Erin 1200 UTC 17 August 2007 1.0 NCEP–GFS Analyses

  22. DT  (K) and vector wind (knots), and 925–850 hPa  (10-4 s-1) Source: NPVU Erin 1200 UTC 18 August 2007 1.0 NCEP–GFS Analyses

  23. DT  (K) and vector wind (knots), and 925–850 hPa  (10-4 s-1) Source: NPVU Erin 1200 UTC 19 August 2007 1.0 NCEP–GFS Analyses

  24. 12Z/16 Source: NCAR image archive

  25. 18Z/16 Source: NCAR image archive

  26. 00Z/17 Source: NCAR image archive

  27. 1000 J kg-1 FWD 200 J kg-1 DRT 00Z/17 Source: NCAR image archive

  28. 06Z/17 Source: NCAR image archive

  29. 12Z/17 Source: NCAR image archive

  30. 18Z/17 Source: NCAR image archive

  31. 00Z/18 Source: NCAR image archive

  32. 00Z/18 FWD MAF 00Z/18 1800 J kg-1 130 J kg-1 Source: NCAR image archive

  33. 06Z/18 Source: NCAR image archive

  34. 12Z/18 Source: NCAR image archive

  35. 18Z/18 Source: NCAR image archive

  36. 00Z/19 Source: NCAR image archive

  37. OUN FWD 1800 J kg-1 00Z/19 1300 J kg-1 Source: NCAR image archive

  38. 06Z/19 Source: NCAR image archive

  39. 12Z/19 Source: NCAR image archive

  40. Surface  and 12Z/19 baroclinic zone Erin L

  41. X  (105 s1),  (K), and vector wind (knots)

  42. 0400–1300 UTC 19 August 2007 BREF and OK Mesonet Observations Source: Roger Edwards, NOAA/NWS/SPC

  43. L L 0500–1300Z/19 Source: Roger Edwards, NOAA/NWS/SPC

  44. Wisconsin “PRE”0000–1200 UTC 19 August

  45. 06Z/19 PRE Erin Source: NCAR image archive

  46. Surface  and 06Z/19 PRE baroclinic zone Erin L

  47. 24 h Total Precipitation (in.) ending 12Z/19 PRE Erin Source: NPVU

  48. 24 h Total Precipitation (in.) ending 12Z/19 PRE Erin OAX 12Z/19 SGF 00Z/19 Source: NPVU

  49. 700  (dam), 1000–500 , 850–500 wind (knots), and Precipitable Water (mm) L 1200 UTC 16 August 2007 1.0 NCEP–GFS Analyses

More Related