Current 08/24/12 06 UTC product: ftp://ftp.nhc.noaa.gov/atcf/stext/12082406AL0912_ships.txt The Weather Undergound is displaying the "V (KT) LAND" version. The "V (KT) NO LAND" is if there was no land. WU is very misleading though. See this:
That is the DSHP (V (KT) LAND). It is traveling over a lot of water though, not a whole lot of land. Compare to the values of SHIP (you can just unclick DSHP and click on SHIP or click below):
SHIP is without land. (V (KT) NO LAND) It travels over a lot of water, so the water version is more applicable in this case. However, here is one that combines it all:
V (KT) LGE mod. The LGEM. So that would be best to look at. Click points along the track and see how the intensity drops as it goes over land.
The land and no land version are helpful at times though. If the storm could be more likely to stay over water, you might look more at SHIP. If the storm could hit a lot more land, you might look more at the decay SHIPS. (DSHP)