| Thunderbird12 |
| (Meteorologist) |
| Thu Sep 08 2005 08:05 PM |
Re: Ophelia
|
I believe that when they are flying at the 850mb level, as they have been so far with Ophelia, they use a 20% reduction in flight-level winds, so you would take the flight-level winds and multiply by 0.8 to get the estimated surface winds. When they are flying at the 700 mb level, they use a 10% reduction, so you would multiply by 0.9.
Those estimates may not be used if there is other evidence of the max surface winds. In this case, they can look at radar data as well to estimate the wind field.