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Archives 2010s >> 2011 News Talkbacks

danielw
Moderator

Reged:
Posts: 3527
Loc: Hattiesburg,MS (31.3N 89.3W)

Re: Windshear
Thu Jul 28 2011 10:18 PM

It appears that the difference in the NOAA and the Air Force dropsonde pressure reading is 4 millibars.

If I'm reading the drops correctly the NOAA drop recorded 1000mb -41m (-135 ft).
USAF drop reported 1000mb -5m (-16 ft)

135ft - 16ft = 119ft divided by 33.4 constant equals 3.56 or 4 millibars.
One millibar is roughly 33.4 feet or one atmosphere if you are a diver.

As to which one is more correct. I don't know. They both were dropped in a windy area so it appears that they may not have sampled the lowest pressure.

I am not a Met, but the preference for dropsondes is to be in an area with less than 20 knot winds. If my memory serves me correctly. I'll double check.

Post Extras

Entire topic
Subject	Posted by	Posted on
Tropical Storm Don Heading Toward Texas	MikeC	Thu Jul 28 2011 10:18 PM
Re: Pressure	Ed Dunham	Thu Jul 28 2011 11:33 PM
11 PM	danielw	Thu Jul 28 2011 10:37 PM
Re: Windshear	danielw	Thu Jul 28 2011 10:18 PM
Re: Windshear	MikeC	Thu Jul 28 2011 10:12 PM
Re: Windshear	typhoon_tip	Thu Jul 28 2011 08:32 PM
Re: Windshear	MikeC	Thu Jul 28 2011 08:31 PM
Re: Windshear	MikeC	Thu Jul 28 2011 08:17 PM
Re: Windshear	MikeC	Thu Jul 28 2011 07:53 PM
Re: Windshear	MikeC	Thu Jul 28 2011 07:44 PM
Re: Windshear	berrywr	Thu Jul 28 2011 07:29 PM
Re: Intensification	MikeC	Thu Jul 28 2011 07:22 PM
Re: Intensification	Ed Dunham	Thu Jul 28 2011 07:15 PM
Re: Windshear	MikeC	Thu Jul 28 2011 07:00 PM
Re: Windshear	cieldumort	Thu Jul 28 2011 06:35 PM
Don	danielw	Thu Jul 28 2011 06:28 PM
Re: Windshear	MikeC	Thu Jul 28 2011 06:21 PM
Re: Windshear	MikeC	Thu Jul 28 2011 06:12 PM
Re: Windshear	WesnWylie	Thu Jul 28 2011 03:33 PM
Re: Windshear	danielw	Thu Jul 28 2011 02:12 PM
Re: Windshear	Ed Dunham	Thu Jul 28 2011 01:33 PM
Re: Recon	Fairhopian	Thu Jul 28 2011 01:25 PM
Re: Recon	danielw	Thu Jul 28 2011 12:49 PM
Re: Recon	berrywr	Thu Jul 28 2011 12:29 PM
Re: Recon	danielw	Thu Jul 28 2011 12:27 PM
Re: Recon	danielw	Thu Jul 28 2011 12:02 PM
Re: Recon	MikeC	Thu Jul 28 2011 11:51 AM
Re: Recon	Ed Dunham	Thu Jul 28 2011 11:45 AM
Re: Recon	WesnWylie	Thu Jul 28 2011 11:16 AM
Re: Recon	MichaelA	Thu Jul 28 2011 11:11 AM
Re: Recon	hogrunr	Thu Jul 28 2011 11:11 AM
Re: Recon	WeatherNut	Thu Jul 28 2011 11:09 AM
Re: Recon	danielw	Thu Jul 28 2011 10:56 AM
Re: Recon	hogrunr	Thu Jul 28 2011 10:50 AM
Re: Recon	danielw	Thu Jul 28 2011 10:34 AM
Re: Recon	hogrunr	Thu Jul 28 2011 10:30 AM
Re: Recon	MichaelA	Thu Jul 28 2011 09:25 AM
Re: Recon	MikeC	Thu Jul 28 2011 09:25 AM
Recon	danielw	Thu Jul 28 2011 09:12 AM
Don Track	danielw	Thu Jul 28 2011 09:03 AM
Re: Don Vortex 1	WesnWylie	Thu Jul 28 2011 08:50 AM
Re: Don Vortex 1	MikeC	Thu Jul 28 2011 08:44 AM
Don Vortex 1	danielw	Thu Jul 28 2011 08:26 AM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	danielw	Thu Jul 28 2011 07:54 AM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	MikeC	Thu Jul 28 2011 06:46 AM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	MikeC	Thu Jul 28 2011 05:42 AM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	MikeC	Wed Jul 27 2011 08:24 PM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	WesnWylie	Wed Jul 27 2011 07:55 PM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	WeatherNut	Wed Jul 27 2011 07:09 PM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	MikeC	Wed Jul 27 2011 06:19 PM
Re: Tropical Storm Don forms in Southern Gulf of Mexico	danielw	Wed Jul 27 2011 04:55 PM

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