Narrative:

Windshear at dfw runway 17L. Arrived at dfw from the blue ridge arrival. Held at conny intersection for approximately 20 mins. Continued the blue ridge arrival for landing on runway 17L at dfw. While being vectored to final approach runway 17L we noticed an approaching line of severe thunderstorms from the northwest. On visual approach to runway 17L, inside the marker, and on tower frequency we received a LLWS alert from dfw tower. Winds were in excess of crosswind and tailwind limits for the S80 aircraft and a go around was initiated at approximately 500 ft AGL. Tower instructions were, turn left to heading 150 degrees, climb to 3000 ft, and contact departure on 118.55. Passing 1000 ft AGL we encountered a severe windshear, with airspeed increase of 50 KTS and an unsolicited climb of 3000 FPM. We initiated the windshear escape maneuver. Copilot called out approaching 3000 ft. At that time we were unable to level at that altitude and I told the first officer to tell departure that we were unable to level at 3000 ft and request higher. Departure said climb to 6000 ft. Aircraft control was regained at approximately 4500 ft and a controled climb continued to 6000 ft. Note: this was a classic example of windshear being at the leading edge of an approaching cold front. We only encountered the updraft and high airspeed portion of the windshear, and thanks to past simulator training were able to recognize and escape this possibly dangerous situation. We departed the holding fix with more than required approach, reserve, and alternate fuel. A severe line of thunderstorms were approaching dfw from the northwest. As we turned final on runway 17L we were unable to land due to windshear and excess wind velocity. A go around was initiated and the field was closed after. Love field was not considered an alternate due to its close proximity to the approaching storm system. On go around departure, we requested vectors to direct austin. After numerous turns, speed restrs, and a headwind of over 70 KTS at altitude, our fuel consumption was higher than normal. At approximately 65 mi from austin, and 4000 pounds of fuel remaining, we declared minimum fuel and requested direct to the austin OM for runway 13R. Upon arriving on final for runway 13R, a windshear alert was advised and an obvious wind-shift had began. With the wind out of limits for landing on runway 13R, we requested a circle-to-land runway 31L. Touchdown fuel at austin was 2400 pounds.

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Original NASA ASRS Text

Title: FLC OF AN MLG EXPERIENCED WINDSHEAR DURING MISSED APCH CLB DUE TO SEVERE TSTM ACTIVITY AND SUBSEQUENT DECLARATION OF MINIMUM FUEL ENRTE TO AN ALTERNATE.

Narrative: WINDSHEAR AT DFW RWY 17L. ARRIVED AT DFW FROM THE BLUE RIDGE ARR. HELD AT CONNY INTXN FOR APPROX 20 MINS. CONTINUED THE BLUE RIDGE ARR FOR LNDG ON RWY 17L AT DFW. WHILE BEING VECTORED TO FINAL APCH RWY 17L WE NOTICED AN APCHING LINE OF SEVERE TSTMS FROM THE NW. ON VISUAL APCH TO RWY 17L, INSIDE THE MARKER, AND ON TWR FREQ WE RECEIVED A LLWS ALERT FROM DFW TWR. WINDS WERE IN EXCESS OF XWIND AND TAILWIND LIMITS FOR THE S80 ACFT AND A GAR WAS INITIATED AT APPROX 500 FT AGL. TWR INSTRUCTIONS WERE, TURN L TO HDG 150 DEGS, CLB TO 3000 FT, AND CONTACT DEP ON 118.55. PASSING 1000 FT AGL WE ENCOUNTERED A SEVERE WINDSHEAR, WITH AIRSPD INCREASE OF 50 KTS AND AN UNSOLICITED CLB OF 3000 FPM. WE INITIATED THE WINDSHEAR ESCAPE MANEUVER. COPLT CALLED OUT APCHING 3000 FT. AT THAT TIME WE WERE UNABLE TO LEVEL AT THAT ALT AND I TOLD THE FO TO TELL DEP THAT WE WERE UNABLE TO LEVEL AT 3000 FT AND REQUEST HIGHER. DEP SAID CLB TO 6000 FT. ACFT CTL WAS REGAINED AT APPROX 4500 FT AND A CTLED CLB CONTINUED TO 6000 FT. NOTE: THIS WAS A CLASSIC EXAMPLE OF WINDSHEAR BEING AT THE LEADING EDGE OF AN APCHING COLD FRONT. WE ONLY ENCOUNTERED THE UPDRAFT AND HIGH AIRSPD PORTION OF THE WINDSHEAR, AND THANKS TO PAST SIMULATOR TRAINING WERE ABLE TO RECOGNIZE AND ESCAPE THIS POSSIBLY DANGEROUS SIT. WE DEPARTED THE HOLDING FIX WITH MORE THAN REQUIRED APCH, RESERVE, AND ALTERNATE FUEL. A SEVERE LINE OF TSTMS WERE APCHING DFW FROM THE NW. AS WE TURNED FINAL ON RWY 17L WE WERE UNABLE TO LAND DUE TO WINDSHEAR AND EXCESS WIND VELOCITY. A GAR WAS INITIATED AND THE FIELD WAS CLOSED AFTER. LOVE FIELD WAS NOT CONSIDERED AN ALTERNATE DUE TO ITS CLOSE PROX TO THE APCHING STORM SYS. ON GAR DEP, WE REQUESTED VECTORS TO DIRECT AUSTIN. AFTER NUMEROUS TURNS, SPD RESTRS, AND A HEADWIND OF OVER 70 KTS AT ALT, OUR FUEL CONSUMPTION WAS HIGHER THAN NORMAL. AT APPROX 65 MI FROM AUSTIN, AND 4000 LBS OF FUEL REMAINING, WE DECLARED MINIMUM FUEL AND REQUESTED DIRECT TO THE AUSTIN OM FOR RWY 13R. UPON ARRIVING ON FINAL FOR RWY 13R, A WINDSHEAR ALERT WAS ADVISED AND AN OBVIOUS WIND-SHIFT HAD BEGAN. WITH THE WIND OUT OF LIMITS FOR LNDG ON RWY 13R, WE REQUESTED A CIRCLE-TO-LAND RWY 31L. TOUCHDOWN FUEL AT AUSTIN WAS 2400 LBS.

Data retrieved from NASA's ASRS site as of July 2007 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.