• After witnessing the continued decrease of involvement in the SpotterNetwork staff in serving SN members with troubleshooting issues recently, I have unilaterally decided to terminate the relationship between SpotterNetwork's support and Stormtrack. I have witnessed multiple users unable to receive support weeks after initiating help threads on the forum. I find this lack of response from SpotterNetwork officials disappointing and a failure to hold up their end of the agreement that was made years ago, before I took over management of this site. In my opinion, having Stormtrack users sit and wait for so long to receive help on SpotterNetwork issues on the Stormtrack forums reflects poorly not only on SpotterNetwork, but on Stormtrack and (by association) me as well. Since the issue has not been satisfactorily addressed, I no longer wish for the Stormtrack forum to be associated with SpotterNetwork.

    I apologize to those who continue to have issues with the service and continue to see their issues left unaddressed. Please understand that the connection between ST and SN was put in place long before I had any say over it. But now that I am the "captain of this ship," it is within my right (nay, duty) to make adjustments as I see necessary. Ending this relationship is such an adjustment.

    For those who continue to need help, I recommend navigating a web browswer to SpotterNetwork's About page, and seeking the individuals listed on that page for all further inquiries about SpotterNetwork.

    From this moment forward, the SpotterNetwork sub-forum has been hidden/deleted and there will be no assurance that any SpotterNetwork issues brought up in any of Stormtrack's other sub-forums will be addressed. Do not rely on Stormtrack for help with SpotterNetwork issues.

    Sincerely, Jeff D.

How do I tell cloud base height?

Thank you for this. Looks a bit complicated though:eek:

It really isn't... Just take your time, you really need to know how to read a Skew-T if you ever want to make your own forecasts, so having it now gives you plenty of opportunity before the next chase season ;)
 
Well, usually your cloud base will fall somewhere between the LCL and the CCL...you can look on a sounding, determine both (the closer you are to convective temperature the closer the LCL and CCL will be I believe), and just assume that your cloud base is going to be between those two heights.

To determine those on a skew-t, see that link provided above.
 
Or...if you know the temperature and dewpoint, find the dewpoint depression and multiply by 200...gives a rough estimation of LCL in feet. :)

Hi Angie,

The multiplication factor is actually 400 feet per degree, so a temp of 30C and a dew point of 15C would give a cloud base roughly 6000 feet. This works very well, as during convection, the atmosphere below the cloud conforms to DALR.

On a teph, it is very likely there is cloud when the sounding is moist, and the profile follows closely the SALR. The cloud base will be found roughly where the air dries out below such a profile segment.

HTH.

N.
 
Melissa, that's a little trick I learned when I was in weather observer class and it works very well.
Nigel, thanks for your conversion factor for degrees C...I'll have to remember it :). Mine uses degrees F. The example you gave converted to 86F and 59F gave an estimated LCL of 5400 feet, so that's pretty darn close.
While we're on the subject, does anybody know if there's a specific conversion to meters, or just use the Centigrade version then convert feet to meters?
 
cloud heigh

In my area, the CB base is close to LCL, not sure why.

Angel
 
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