There is a risk.... . Humberside (etc)......Gusts 55 to 65 mph
possible
70mph ... the Heading says there is an 80% or greater confidence of
this occuring and is described as Severe Gales.
It seems Gusts now register for Gale definition?

BUT look at a Humberside Airfield TAF
EGNJ 220602Z 220716 22015G25KT 9999 BKN030
PROB30 TEMPO 1016 23025G35KT.
Rather weak! and only PROB30 of a bigger gust than 25KT?
..

I'm sure TAFS don't show the absolute peak gust but what is the
current
calculation and rule applied in preparing such a TAF?.

Not withstanding that my query involving the required mix of units
for different customers, I assume that the TAF and warning all used
the same basic information from the same Company?

NSS

On Jun 22, 10:21*am, wrote:
There is a risk.... . * Humberside (etc)......Gusts 55 to 65 mph
possible
70mph ... *the Heading says there is an 80% or greater confidence of
this occuring and is described as Severe Gales.
It seems Gusts now register for Gale definition?

BUT look at a Humberside Airfield TAF
EGNJ 220602Z 220716 22015G25KT 9999 BKN030
* * *PROB30 *TEMPO 1016 23025G35KT.
Rather weak! and only PROB30 of a bigger gust than 25KT?
.

I'm sure TAFS don't show the absolute peak gust but what is the
current
calculation and rule applied in preparing such a TAF?.

Not withstanding that *my query involving the required mix of units
for different customers, I assume that the TAF and warning all used
the same basic information from the same Company?

NSS

Humberside TAF has been updated and reads Tempo Gust 48KT


Jon

wrote in message
...
There is a risk.... . Humberside (etc)......Gusts 55 to 65 mph
possible
70mph ... the Heading says there is an 80% or greater confidence of
this occuring and is described as Severe Gales.
It seems Gusts now register for Gale definition?

BUT look at a Humberside Airfield TAF
EGNJ 220602Z 220716 22015G25KT 9999 BKN030
PROB30 TEMPO 1016 23025G35KT.
Rather weak! and only PROB30 of a bigger gust than 25KT?
.

I'm sure TAFS don't show the absolute peak gust but what is the
current
calculation and rule applied in preparing such a TAF?.


+/- 10kt

ie TAF forecast G50, acceptable range is G40 to G60.