Hurricane Simulation results severely under expected values

[William.Hatheway]

Good morning,

I have been trying to simulate Hurricane Beryl using the WRF 4.6.0.

My results are severely under estimating the storm and I think there may be something in my namelist that is causing it. Could you please take a look at it?

Input Data GFS 06Z 07 02 2024

Regards

 

[William.Hatheway]

 

[Ming Chen]

Your namelist.input looks fine.
What data did you use to drive this case? Have you checked the storm intensity in your forcing data?

 

[William.Hatheway]

https://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/gfs.20240702/06/atmos/gfs.t06z.pgrb2.0p25.f000

to

https://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/gfs.20240702/06/atmos/gfs.t06z.pgrb2.0p25.f048

the forcing data seems to show the central pressure being accurate but when the model gets a hold of it increases the pressure. I'm guessing there's a physics issue?

 

[William.Hatheway]

how could I check the input data to see what it starts with for central pressure?

@Ming Chen

 

[Ming Chen]

We usually look at sea level pressure, and in analysis dataset with 0.25 degree resolution, its value is often significantly lower than observation.