"Martin Rowley" wrote in message
...
BAGHDAD, Aug. 8 (UPI) -- A sandstorm swept large parts of
Iraq, including Baghdad, Monday disrupting traffic and forcing
almost total paralysis of daily activities and street life.
The storm reduced visibility to around a quarter mile
increasing the danger of road accidents and exploitation of the poor
weather conditions by terrorists and thieves.


... and in Kuwait, see sudden change from 'CAVOK' to 3500 HZ etc., at
0300Z (latest time at top of stack)

OKBK 081700Z 31017KT 3500 BLDU SKC 38/03 Q0998 NOSIG
OKBK 081630Z 31017KT 3500 BLDU SKC 39/03 Q0998 NOSIG
OKBK 081600Z 31016KT 2500 -HZ SKC 39/03 Q0998 NOSIG
OKBK 081530Z 30017KT 2000 +BLDU SKC 40/03 Q0998 NOSIG
OKBK 081500Z 31018KT 2000 +BLDU SKC 40/03 Q0997 NOSIG
OKBK 081430Z 31019KT 1600 +BLDU SKC 41/07 Q0997 NOSIG
OKBK 081400Z 31019KT 1400 R33L/1400N R33R/1300N +BLDU SKC 41/07 Q0997
NOSIG
OKBK 081400Z 31019KT 1400 +BLDU SKC 41/07 Q0997 NOSIG
OKBK 081330Z 31020KT 1200 R33L/1300N R33R/1200N +BLDU SKC 41/06 Q0997
NOSIG
OKBK 081300Z 31020KT 1200 R33L/1300N R33R/1300N +BLDU SKC 41/06 Q0997
NOSIG
OKBK 081300Z 31020KT 1200 +BLDU SKC 41/06 Q0997 NOSIG
OKBK 081230Z 31022KT 1400 R33L/1300N R33R/1200D +BLDU SKC 42/04 Q0997
NOSIG
OKBK 081200Z 32021KT 1600 +BLDU SKC 42/04 Q0997 NOSIG
OKBK 081130Z 31023KT 1600 +BLDU SKC 42/05 Q0998 NOSIG
OKBK 081100Z 31020KT 1700 +BLDU SKC 42/05 Q0998 NOSIG
OKBK 081030Z 31021KT 1600 +BLDU SKC 42/04 Q0998 NOSIG
OKBK 081000Z 31022KT 1600 +BLDU SKC 42/04 Q0998 NOSIG
OKBK 080930Z 31023KT 1600 +BLDU SKC 41/07 Q0998 NOSIG
OKBK 080900Z 31022KT 1600 +BLDU SKC 41/07 Q0998 NOSIG
OKBK 080830Z 31021KT 1700 +BLDU SKC 40/07 Q0999 NOSIG
OKBK 080800Z 31023KT 1700 +BLDU SKC 40/05 Q0999 NOSIG
OKBK 080730Z 31020KT 2000 +BLDU SKC 38/07 Q0999 NOSIG
OKBK 080700Z 30020KT 2000 +BLDU SKC 38/07 Q0999 NOSIG
OKBK 080630Z 31019KT 2500 +BLDU SKC 37/07 Q0999 NOSIG
OKBK 080600Z 30020KT 2500 +BLDU SKC 37/06 Q0999 NOSIG
OKBK 080530Z 30019KT 3000 BLDU SKC 36/06 Q0999 NOSIG
OKBK 080500Z 30016KT 3000 -HZ SKC 36/06 Q0998 NOSIG
OKBK 080430Z 30016KT 3000 -HZ SKC 34/06 Q0999 NOSIG
OKBK 080400Z 29014KT 3000 -HZ SKC 34/06 Q0998 NOSIG
OKBK 080330Z 29012KT 3500 -HZ SKC 32/07 Q0998 NOSIG
OKBK 080300Z 26011KT 3500 -HZ SKC 32/07 Q0998 NOSIG
OKBK 080230Z 29009KT CAVOK 33/05 Q0998 NOSIG
OKBK 080200Z 29010KT CAVOK 33/05 Q0998 NOSIG
OKBK 080130Z 29011KT CAVOK 34/05 Q0998 NOSIG
OKBK 080100Z 29010KT CAVOK 34/05 Q0997 NOSIG
OKBK 080030Z 29011KT CAVOK 34/04 Q0997 NOSIGMartin. -- FAQ & Glossary for
uk.sci.weather
at:-http://homepage.ntlworld.com/booty.weather/uswfaqfr.htm[ with Search
facility ]andhttp://booty.org.uk/booty.weather/metindex.htm

Most interesting but I wonder how useful the NOSIG Trend was to any pilots
approaching the area. Often noted that coutries outside UK (e.g. Spain)
continue NOSIG through thunderstorm events, even when visibility drops from
9999 to below fog limits. Am I mis reading the 'rules' or are Trends any
use to Pilots when in fact they could be totally misleading when they
represent expectation for the next two hours and the Pilot is getting ready
to fianalise his approach ?
NSS