LFST 280400Z AUTO 00000KT 0500 0350 R23/0750N R05/0400N FG VV/// 04/03 Q1021 NOSIG
TAF LFST 271700Z 2718/2818 VRB03KT CAVOK BECMG 2718/2721 3000 BR TEMPO 2721/2811 0500 FG VV/// BECMG 2811/2813 CAVOK
Temperature in degrees Celsius: 23
Dew Point Temperature in degrees Celsius: 7
http://openflyers.com/case/icingChart.php?chart=2&temperature=23&dewPoint=7