An MD10 flight crew declared an emergency for weather avoidance.

Attributes
ACN	828908
Time
Date	200903
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	DC-10 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) Flight Crew Private
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 7000 Flight Crew Type 2000
Events
Anomaly	Inflight Event / Encounter Weather / Turbulence

Narrative:

After holding on the runway and waiting for the predictive windshear warning to cease; we took off after coordinating with tower that we need to make a left turn to the south to clear thunderstorms north and northeast of the field before proceeding on course eastbound. Initial heading was 250 degrees which pointed us right at another line of cells that we were unable to see while on the ground due to the direction the nose was pointed. We needed to turn south as soon as possible; but the tower was having a long discussion with another crew about taxi instructions. We waited until we could wait no longer and declared an emergency and turned south to avoid the weather. Tower then cleared us to turn south and asked if we need assistance and we replied that the turn was our only emergency.

Original NASA ASRS Text

Title: An MD10 flight crew declared an emergency for weather avoidance.

Narrative: After holding on the runway and waiting for the Predictive Windshear warning to cease; we took off after coordinating with Tower that we need to make a left turn to the south to clear thunderstorms north and northeast of the field before proceeding on course eastbound. Initial heading was 250 degrees which pointed us right at another line of cells that we were unable to see while on the ground due to the direction the nose was pointed. We needed to turn south as soon as possible; but the Tower was having a long discussion with another crew about taxi instructions. We waited until we could wait no longer and declared an emergency and turned south to avoid the weather. Tower then cleared us to turn south and asked if we need assistance and we replied that the turn was our only emergency.

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.