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Sara's remnants are now in the Gulf, but are not expected to reorganize much. Elsewhere, no tropical development is anticipated.

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News Talkback >> 2005 News Talkbacks

Clark
Meteorologist

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Posts: 1710

Re: Delta... why not?
Tue Nov 22 2005 07:48 PM

Just as an aside, Margie, the 85GHz channel on the satellite products available on the NRL's site isn't directly a measure of deep convection. That channel, through various physical processes, is sensitive to ice content at upper levels. Higher ice content leads to lower brightness temperatures (what those images are displaying); note that a brightness temperature isn't an actual temperature, but instead deals with some of the radiative properties of an object.

Generally yes, deep convection will have relatively high ice content...but you'll see moderate to deep convection occasionally appear that does not have very high ice content. In the case of an extratropical cyclone trying to become a tropical cyclone, it's probably better to use the microwave imagery to try to discern developing banding or even eyewall structures and infrared imagery to actually sense the organization of the convection. A lot of this harkens back to these systems primarily being found in the midlatitudes and not the tropics and the properties of convection normally seen here.

In soon-to-be Delta's case, infrared imagery has hinted at a developing eyewall all afternoon, much as was seen with Vince immediately prior to classification, and the microwave image you referenced seems to confirm that with hints of a banding-style eye forming. It's getting close to classification and I would not be surprised to see it classified at 10p ET.

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Subject	Posted by	Posted on
Delta... why not?	HanKFranK	Tue Nov 22 2005 07:48 PM
Re: Delta... why not?	FloydRTurbo	Wed Nov 23 2005 10:31 PM
Re: Delta... why not?	UKCloudgazer	Thu Nov 24 2005 05:25 AM
Re: Delta... why not?	FloydRTurbo	Thu Nov 24 2005 12:10 PM
Re: Delta... why not?	vineyardsaker	Tue Nov 22 2005 08:11 PM
Re: Delta... why not?	Rich B	Tue Nov 22 2005 05:28 PM
Re: Delta... why not?	typhoon_tip	Tue Nov 22 2005 06:29 PM
Re: Delta... why not?	Margie	Tue Nov 22 2005 06:03 PM
Re: Delta... why not?	Clark	Tue Nov 22 2005 07:48 PM
Re: Delta... why not?	Old Sailor	Tue Nov 22 2005 07:58 PM
Re: Delta... why not?	Clark	Tue Nov 22 2005 08:54 PM
Re: Delta... why not?	Old Sailor	Tue Nov 22 2005 09:06 PM
Re: Delta... why not?	HanKFranK	Tue Nov 22 2005 09:31 PM
Re: Delta... why not?	Old Sailor	Tue Nov 22 2005 09:53 PM
Re: Delta... why not?	HanKFranK	Tue Nov 22 2005 11:51 PM
Re: Delta... why not?	Margie	Wed Nov 23 2005 12:24 AM
Re: Delta... why not?	Bloodstar	Wed Nov 23 2005 01:30 AM
Re: Delta... why not?	Clark	Wed Nov 23 2005 01:52 AM
Re: Delta... why not?	danielw	Wed Nov 23 2005 02:20 AM
Re: Delta... why not?	Bloodstar	Wed Nov 23 2005 02:25 AM
Re: Delta... why not?	danielw	Wed Nov 23 2005 02:32 AM
Re: Delta... why not?	dave foster	Wed Nov 23 2005 08:39 AM
Re: Delta... why not?	UKCloudgazer	Wed Nov 23 2005 10:39 AM
Re: Delta... why not?	dave foster	Wed Nov 23 2005 11:45 AM
Re: Delta... why not?	HanKFranK	Wed Nov 23 2005 12:12 PM
Re: Delta... why not?	Rabbit	Wed Nov 23 2005 01:57 PM
Why is the NHC not naming this storm?	vineyardsaker	Wed Nov 23 2005 02:59 PM
Re: Why is the NHC not naming this storm?	Margie	Wed Nov 23 2005 03:41 PM
Re: Why is the NHC not naming this storm?	Storm Hunter	Wed Nov 23 2005 03:24 PM
Re: Why is the NHC not naming this storm?	Lee-Delray	Wed Nov 23 2005 03:41 PM
Re: Why is the NHC not naming this storm?	Trekman	Wed Nov 23 2005 04:17 PM
Re: Why is the NHC not naming this storm?	typhoon_tip	Wed Nov 23 2005 04:22 PM
Re: Why is the NHC not naming this storm?	Rabbit	Wed Nov 23 2005 03:42 PM
Re: Why is the NHC not naming this storm?	HanKFranK	Wed Nov 23 2005 03:57 PM
Re: Why is the NHC not naming this storm? Killed -- Sent to Graveyard	La Nimo	Wed Nov 23 2005 04:23 PM
Re: Why is the NHC not naming this storm? Killed -- Sent to Graveyard	dave foster	Wed Nov 23 2005 04:39 PM
Re: Why is the NHC not naming this storm?	Random Chaos	Wed Nov 23 2005 05:16 PM
Re: Why is the NHC not naming this storm?	Margie	Wed Nov 23 2005 05:37 PM
Re: Why is the NHC not naming this storm?	Tak	Wed Nov 23 2005 05:48 PM
Re: Why is the NHC not naming this storm?	Tak	Wed Nov 23 2005 05:55 PM
Re: Why is the NHC not naming this storm?	tpratch	Wed Nov 23 2005 06:20 PM
Re: Why is the NHC not naming this storm?	GuppieGrouper	Wed Nov 23 2005 06:59 PM
Interesting Note	danielw	Wed Nov 23 2005 07:46 PM
hmmm..	HanKFranK	Wed Nov 23 2005 08:32 PM
Re: hmmm..	LoisCane	Wed Nov 23 2005 09:45 PM
Re: hmmm..	Margie	Wed Nov 23 2005 10:00 PM
Delta Burke's direction..?	ltpat228	Wed Nov 23 2005 10:19 PM
Re: hmmm..	emackl	Wed Nov 23 2005 08:40 PM
Re: hmmm..	NONAME	Wed Nov 23 2005 08:48 PM
Re: hmmm..	dave foster	Wed Nov 23 2005 09:18 PM
Re: Why is the NHC not naming this storm?	UKCloudgazer	Wed Nov 23 2005 05:48 PM
Re: Why is the NHC not naming this storm?	Rabbit	Wed Nov 23 2005 05:06 PM
Re: Why is the NHC not naming this storm?	typhoon_tip	Wed Nov 23 2005 04:18 PM
Re: Why is the NHC not naming this storm?	Margie	Wed Nov 23 2005 04:04 PM
Re: Delta... why not?	ltpat228	Wed Nov 23 2005 08:46 AM
Re: Delta... why not?	Lee-Delray	Wed Nov 23 2005 10:48 AM
Re: Delta... why not?	ltpat228	Wed Nov 23 2005 11:34 AM
Re: Delta... why not?	Rabbit	Wed Nov 23 2005 11:22 AM
Re: Delta... why not?	dave foster	Wed Nov 23 2005 11:49 AM
Re: Delta... why not?	damejune2	Wed Nov 23 2005 10:24 AM
Re: Delta... why not?	Lee-Delray	Wed Nov 23 2005 08:54 AM
December	Doombot!	Wed Nov 23 2005 03:30 AM
Re: Delta... why not?	danielw	Wed Nov 23 2005 01:21 AM
Re: Delta... why not?	HanKFranK	Tue Nov 22 2005 09:04 PM
Re: Delta... why not?	Bloodstar	Tue Nov 22 2005 07:05 PM
Re: Delta... why not?	Rabbit	Tue Nov 22 2005 03:46 PM
Re: Delta... why not?	Rich B	Tue Nov 22 2005 04:20 PM
Re: Delta... why not?	ltpat228	Tue Nov 22 2005 04:37 PM
Re: Delta... why not?	Rich B	Tue Nov 22 2005 02:37 PM

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