Narrative:

Climbing out at approx. 10;000 feet we received a anti-ice duct warning message. We complied with the QRH which called for avoiding icing conditions. The cloud tops were around 12;000 feet and a climb to FL300 was continued. Unfortunately icing conditions existed over the majority of the southeast; northeast ; and midwest us dispatch was contacted and a mutual decision was met to divert to ZZZ approximately 450 NM away. This was the nearest suitable airport without icing conditions. An emergency was declared and we were cleared direct to ZZZ. FMS fuel planning estimated the landing fuel in ZZZ at 2000 pounds. This was at the limit of our comfort level but after talking to dispatch we decided this to be the best course of action. Minimum fuel was declared with center and we landed with approximately 1900 pounds of fuel. The aircraft dispatcher played a crucial role in this event. Without his help we would have been flying blind while searching for a suitable airport without icing conditions. This was a worst case scenario with the eastern third of the country socked in with icing conditions. I want to thank my first officer; flight attendant; and dispatcher for their excellent use of CRM.not sure exactly what could be done to avoid this in the future. With such a widespread weather system it is difficult to plan accordingly. I will certainly consider carrying extra fuel when confronted with large weather systems such as this.

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Original NASA ASRS Text

Title: CRJ flight crew experienced anti-ice duct warning climbing out of 10;000 FT. The QRH calls for remaining clear of icing conditions. The nearest suitable airport is 450 NM away and the crew lands with 1900 LBS of fuel.

Narrative: Climbing out at approx. 10;000 feet we received a Anti-Ice Duct Warning Message. We complied with the QRH which called for avoiding icing conditions. The cloud tops were around 12;000 feet and a climb to FL300 was continued. Unfortunately icing conditions existed over the majority of the southeast; northeast ; and Midwest U.S. Dispatch was contacted and a mutual decision was met to divert to ZZZ approximately 450 NM away. This was the nearest suitable airport without icing conditions. An emergency was declared and we were cleared direct to ZZZ. FMS fuel planning estimated the landing fuel in ZZZ at 2000 pounds. This was at the limit of our comfort level but after talking to Dispatch we decided this to be the best course of action. Minimum fuel was declared with Center and we landed with approximately 1900 pounds of fuel. The Aircraft Dispatcher played a crucial role in this event. Without his help we would have been flying blind while searching for a suitable airport without icing conditions. This was a worst case scenario with the eastern third of the country socked in with icing conditions. I want to thank my First Officer; Flight Attendant; and Dispatcher for their excellent use of CRM.Not sure exactly what could be done to avoid this in the future. With such a widespread weather system it is difficult to plan accordingly. I will certainly consider carrying extra fuel when confronted with large weather systems such as this.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.