The form 214 for the 15th March showed a freezing level at 2000'. Normally they are pretty accurate. I took off at 15:00 with a surface temperature of +7 and found ice at 2 500' that went fairly well up to 18 000'
Form 214 is a good thing to keep in your armoury, I certainly would not have wanted to go flying above 2 000' in an aircraft without anti-ice kit yesterday.
SND