Summary
The National Hurricane Center and Joint Typhoon Warning Center operational tropical cyclone intensity forecasts for the three major northern hemisphere tropical cyclone basins (Atlantic, eastern North Pacific, and western North Pacific) for the past two decades are examined for long-term trends. Results show that there has been some marginal improvement in the mean absolute error at 24 and 48 h for the Atlantic and at 72 h for the east and west Pacific. A new metric that measures the percent variance of the observed intensity changes that is reduced by the forecast (variance reduction, VR) is defined to help account for inter-annual variability in forecast difficulty. Results show that there have been significant improvements in the VR of the official forecasts in the Atlantic, and some marginal improvement in the other two basins. The VR of the intensity guidance models was also examined. The improvement in the VR is due to the implementation of advanced statistical intensity prediction models and the operational version of the GFDL hurricane model in the mid-1990s. The skill of the operational intensity forecasts for the 5-year period ending in 2005 was determined by comparing the errors to those from simple statistical models with input from climatology and persistence. The intensity forecasts had significant skill out to 96 h in the Atlantic and out to 72 h in the east and west Pacific. The intensity forecasts are also compared to the operational track forecasts. The skill was comparable at 12 h, but the track forecasts were 2 to 5 times more skillful by 72 h. The track and intensity forecast error trends for the two-decade period were also compared. Results showed that the percentage track forecast improvement was almost an order of magnitude larger than that for intensity, indicating that intensity forecasting still has much room for improvement.
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References
SD Aberson (1998) ArticleTitleFive-day tropical cyclone track forecasts in the North Atlantic basin Wea Forecast 13 1005–1015 Occurrence Handle10.1175/1520-0434(1998)013<1005:FDTCTF>2.0.CO;2
SD Aberson CR Sampson (2003) ArticleTitleOn the predictability of tropical cyclone tracks in the Northwest Pacific basin Wea Forecast 131 1491–1497
Chu J-H (1994) A regression model for the western North Pacific tropical cyclone intensity forecasts. NRL Memo. Rep. 7541-94-7215, Naval Research Laboratory, 33 pp [available from Naval Research Laboratory, 7 Grace Hopper Avenue, Monterey, CA 93943-5502, USA]
DeMaria M, Gross JM (2003) Hurricane! Coping with disaster. Chapter 4: Evolution of Tropical Cyclone Forecast Models (Simpson R, ed). American Geophysical Union, 360 p
M DeMaria M Mainelli LK Shay JA Knaff J Kaplan (2005) ArticleTitleFurther improvements to the statistical hurricane intensity prediction scheme (SHIPS) Wea Forecast 20 531–543 Occurrence Handle10.1175/WAF862.1
VF Dvorak (1975) ArticleTitleTropical cyclone intensity analysis and forecasting from satellite imagery Mon Wea Rev 103 420–430 Occurrence Handle10.1175/1520-0493(1975)103<0420:TCIAAF>2.0.CO;2
Franklin JL (2006) 2005 National Hurricane Center forecast verification report [available online at http://www.nhc.noaa.gov/verification/pdfs/verification_2005.pdf]
JL Franklin M DeMaria (1992) ArticleTitleThe impact of omega dropwindsonde observations on barotropic hurricane track forecasts Mon Wea Rev 120 381–391 Occurrence Handle10.1175/1520-0493(1992)120<0381:TIOODO>2.0.CO;2
TA Jones DJ Cecil M DeMaria (2006) ArticleTitlePassive microwave-enhanced statistical hurricane intensity prediction scheme Wea Forecast 21 613–635 Occurrence Handle10.1175/WAF941.1
JA Knaff M DeMaria B Sampson JM Gross (2003) ArticleTitleStatistical, five-day tropical cyclone intensity forecasts derived from climatology and persistence Wea Forecast 18 80–92 Occurrence Handle10.1175/1520-0434(2003)018<0080:SDTCIF>2.0.CO;2
JA Knaff CR Sampson M DeMaria (2005) ArticleTitleAn operational statistical typhoon intensity prediction scheme for the western North Pacific Wea Forecast 20 688–699 Occurrence Handle10.1175/WAF863.1
Y Kurihara RE Tuleya MA Bender (1998) ArticleTitleThe GFDL hurricane prediction system and its performance in the 1995 hurricane season Mon Wea Rev 126 1306–1322 Occurrence Handle10.1175/1520-0493(1998)126<1306:TGHPSA>2.0.CO;2
Mackey BP, Biswas MK, Krishnamurti TN (2005) Performance of the Florida State University Superensemble during 2004, Presentation at the 59th Interdepartmental Hurricane Conference, Jacksonville, FL [available at http://www.ofcm.gov/ihc05/Presentations/02%20session2/s2-10mackey.ppt]
CJ McAdie MB Lawrence (2000) ArticleTitleImprovements in tropical cyclone track forecasting in the Atlantic basin, 1970–98 Bull Amer Meteor Soc 81 989–998 Occurrence Handle10.1175/1520-0477(2000)081<0989:IITCTF>2.3.CO;2
CJ Neumann (1981) ArticleTitleTrends in forecasting the tracks of Atlantic tropical cyclones Bull Amer Meteor Soc 62 1473–1485
K Park X Zou (2004) ArticleTitleToward developing an objective 4DVAR BDA scheme for hurricane initialization based on TPC observed parameters Mon Wea Rev 132 2054–2069 Occurrence Handle10.1175/1520-0493(2004)132<2054:TDAODB>2.0.CO;2
CR Sampson AJ Schrader (2000) ArticleTitleThe automated tropical cyclone forecasting system (Version 3.2) Bull Amer Meteor Soc 81 1131–1240 Occurrence Handle10.1175/1520-0477(2000)081<1231:TATCFS>2.3.CO;2
Sampson CR, Knaff JA, DeMaria M (2006) A statistical intensity model consensus for the Joint Typhoon Warning Center. AMS 27th Conf. on Hurricanes and Tropical Meteorology, 24–28 April, Monterey, CA
Sampson CR, Miller RJ, Kreitner RA, Tsui TL (1990) Tropical cyclone track objective aids for the microcomputer: PCLM, XTRP, PCHP. Naval Oceanographic and Atmospheric Research Laboratory, Tech Note 61, 15 pp [available from Naval Research Laboratory, 7 Grace Hopper Avenue, Monterey, CA 93943-5502]
Y Wang C-C Wu (2004) ArticleTitleCurrent understanding of tropical cyclone structure and intensity changes – a review Meteorol Atmos Phys 87 257–278 Occurrence Handle10.1007/s00703-003-0055-6
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DeMaria, M., Knaff, J. & Sampson, C. Evaluation of long-term trends in tropical cyclone intensity forecasts. Meteorol. Atmos. Phys. 97, 19–28 (2007). https://doi.org/10.1007/s00703-006-0241-4
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DOI: https://doi.org/10.1007/s00703-006-0241-4