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Post by snowspinner on Nov 7, 2014 8:37:56 GMT -5
Does anyone know if it's stated in the 7900.5C that you can only report up to 90 degrees at a time...MDT CU DSNT SW-NW-NE?
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Post by weatheri on Nov 7, 2014 10:31:38 GMT -5
It does not. The 90 degree rule is a military blast from the past. Most SWOs will prepare a station SOP for reporting locations.
If you see N-NW it should mean N-E-S-W-NW.
It is mainly so there is no confusion in location.
N-S would be N-E-S for 90 degrees.
We use no more than 135 degrees, just to make sure that there is another point to remind the user that you are going in a clockwise direction. After all we do this for them.
Regards
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Post by fu on Nov 7, 2014 10:47:34 GMT -5
Not required by the 7900.5 but as weatheri says it's used to avoid confusion.
CB N-S could mean either CB N-E-S or CB N-OHD-S. Using a midpoint just clarifies things.
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Post by hlsto2 on Nov 7, 2014 10:55:35 GMT -5
the 90 degree rule was also used by the NWS before ASOS. we won't go 180. N-SE N-E-SW NW-N-E. Never N-S
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Post by swifterz on Nov 7, 2014 17:17:51 GMT -5
We always add a third direction if goes to 180 or more. So N-E-S.
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Post by hlsto2 on Nov 8, 2014 8:58:09 GMT -5
I wish we could go back to the old way of reporting TS/LTG TS SW MOV NE OCNL LTGCG.
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