The Weather Forecasting Forum

I am trying to get a script to forecast surface high temp from the 1000-850 thickness.

local equation

HIGH=-365.5+(0319* 1000/850thickness)

Script equation Tmax=0.33*tk 1000/850 - 381 spring time high

ANALYZE,CONT CINT=10 DASH COLOR=200:0:0 SSBC 4:381 STORE =4 SMLC 3:0.33 STORE=3 SDIF=1:2 STOR=2 HGHT H000 STOR=1 HGHT H850

I get some reasonable numbers but also get some junk.

Hi Kinetic,

I have looked through your script and there are a couple of errors, you have written STORE, when it should read STOR, otherwise it looks ok. I have altered the contours to 2 and the temp to Deg C.

ANALYZE, CONT DEGC CINT=2 DASH COLOR=200:0:0 SSBC 4:381 STOR =4 SMLC 3:0.33 STOR=3 SDIF=1:2 STOR=2 HGHT H000 STOR=1 HGHT H850.

Having run the script in a few locations it would appear about right. The only other thing that might effect the output is using the correct season formula in different parts of the world.

Tmax = 0.33 * Tk1000-850 - 381 (spring),
Tmax = 0.30 * Tk1000-850 - 338 (summer),
Tmax = 0.35 * Tk1000-850 - 414 (autumn),
Tmax = 0.36 * Tk1000-850 - 422 (winter).