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Archives 2000s >> 2005 News Talkbacks

Clark
Meteorologist


Reged: Wed
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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Entire topic
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? danielwAdministrator   Wed Nov 23 2005 02:20 AM
. * * Re: Delta... why not? Bloodstar   Wed Nov 23 2005 02:25 AM
. * * Re: Delta... why not? danielwAdministrator   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 danielwAdministrator   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? danielwAdministrator   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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