Narrative:

Las forecast to be VFR with gusty winds. We departed with a normal fuel load; no alternate or contingency fuel. On arrival to las we began the ILS 25L approach. During the approach; tower announced a microburst alert; 30 KTS for runway 25L. We discontinued the approach. Tower asked if we would like an approach to runway 01 as they did not have any alerts for that runway. We agree and got a vector to runway 01. While proceeding to 01; tower announced a microburst alert of 30 KTS for runway 01. We requested holding to evaluate the situation. [We were] cleared to hold at bld as published. In holding; called dispatch and requested alternate information; given phx or ont for alternates. During the hold; tower informed us there were no alerts for 25L. Informed dispatch we were departing the hold for 25L and if we didn't get in; we were diverting to phx. Dispatch said he would ACARS time and burns if needed. On final to 25L tower announced another microburst alert; 30 KTS for 25L. We executed a missed approach. When handed off to departure we informed them of our intent to divert to phx and declared minimum fuel. Initially [we] received easterly vector to intercept a las departure to an arrival into phx. Declared an emergency and informed ATC we were direct phx. Proceeded direct phx to a five mile VFR final to runway 26. We landed with approximately 1;900 pounds of fuel remaining.

Google
 

Original NASA ASRS Text

Title: Dispatched to LAS with neither alternate nor contingency fuel; an Airbus flight crew declared a fuel emergency and proceeded direct to PHX when microburst alerts at LAS precluded landing.

Narrative: LAS forecast to be VFR with gusty winds. We departed with a normal fuel load; no alternate or contingency fuel. On arrival to LAS we began the ILS 25L approach. During the approach; Tower announced a microburst alert; 30 KTS for Runway 25L. We discontinued the approach. Tower asked if we would like an approach to Runway 01 as they did not have any alerts for that runway. We agree and got a vector to Runway 01. While proceeding to 01; Tower announced a microburst alert of 30 KTS for Runway 01. We requested holding to evaluate the situation. [We were] cleared to hold at BLD as published. In holding; called Dispatch and requested alternate information; given PHX or ONT for alternates. During the hold; Tower informed us there were no alerts for 25L. Informed Dispatch we were departing the hold for 25L and if we didn't get in; we were diverting to PHX. Dispatch said he would ACARS time and burns if needed. On final to 25L Tower announced another microburst alert; 30 KTS for 25L. We executed a missed approach. When handed off to Departure we informed them of our intent to divert to PHX and declared minimum fuel. Initially [we] received easterly vector to intercept a LAS departure to an arrival into PHX. Declared an emergency and informed ATC we were direct PHX. Proceeded direct PHX to a five mile VFR final to Runway 26. We landed with approximately 1;900 LBS of fuel remaining.

Data retrieved from NASA's ASRS site as of July 2013 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.