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Tropical Cyclone DOLLY - AL052014

This page compares PIIH predictions for storm DOLLY - AL052014 with models currently used by the National Hurricane Center. To compare model accuracy we use Mean Average Deviation (MAD; average absolute prediction error) and Mean Squared Error (MSE; mean squared prediction error). We report the errors here as averages over the whole storm, averages per forecast period (12 to 120 hours into the future), and by individual prediction.

Average Model Errors

MADMSE
PIIH12.61201.83
SHF514.97307.86
LGEM8.86112.31
SHIP12.92220.97
DSHP8.2893.00

Average Model Errors by Forecast Period

ModelMeasureX0X12X24X36X48X60X72X84X96X108X120
PIIHMADNA11.0014.757.00NANANANANANANA
SHF5MADNA12.0018.2514.50NANANANANANANA
LGEMMADNA9.1714.752.50NANANANANANANA
SHIPMADNA12.0016.754.50NANANANANANANA
DSHPMADNA8.8312.504.00NANANANANANANA
PIIHMSENA159.67249.2574.00NANANANANANANA
SHF5MSENA160.67541.25230.50NANANANANANANA
LGEMMSENA120.50220.256.50NANANANANANANA
SHIPMSENA182.00331.7540.50NANANANANANANA
DSHPMSENA114.83157.5016.00NANANANANANANA

* MAD: Mean Average Deviation, MSE: Mean Squared Error

Forecasts for 09/01/2014 18:00 GMT

MADMSE
PIIH8.67100.00
SHF59.3388.00
LGEM10.67144.67
SHIP9.00121.67
DSHP10.33127.00

Forecasts for 09/02/2014 00:00 GMT

MADMSE
PIIH12.00150.00
SHF512.00196.67
LGEM11.00169.67
SHIP13.00187.67
DSHP11.33166.00

Forecasts for 09/02/2014 06:00 GMT

MADMSE
PIIH6.0072.00
SHF514.50300.50
LGEM9.00130.00
SHIP7.0085.00
DSHP7.0085.00

Forecasts for 09/02/2014 12:00 GMT

MADMSE
PIIH16.00320.00
SHF527.00873.00
LGEM13.50184.50
SHIP19.50470.50
DSHP11.00122.00

Forecasts for 09/02/2014 18:00 GMT

MADMSE
PIIH13.00169.00
SHF510.00100.00
LGEM3.009.00
SHIP10.00100.00
DSHP3.009.00

Forecasts for 09/03/2014 00:00 GMT

MADMSE
PIIH20.00400.00
SHF517.00289.00
LGEM6.0036.00
SHIP19.00361.00
DSHP7.0049.00

Forecasts for 09/03/2014 06:00 GMT

MADMSE
PIIHNANA
SHF5NANA
LGEMNANA
SHIPNANA
DSHPNANA

Forecasts for 09/03/2014 12:00 GMT

MADMSE
PIIHNANA
SHF5NANA
LGEMNANA
SHIPNANA
DSHPNANA

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Acknowledgements

We would like to thank James Franklin (Hurricane Specialist Unit, NHC, NOAA) and Dr. Mark Demaria (NESDIS Regional and Mesoscale Meteorology Branch, CIRA) for their help.

NSF This work is based on TRACDS sponsored by the National Science Foundation under Grant No. IIS-0948893.

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.