An air carrier pilot uses emergency authority/authorized to avoid WX.

Attributes
ACN	569368
Time
Date	200212
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : hrv.vortac
State Reference	LA
Altitude	msl single value : 35000
Environment
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu.artcc
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other other vortac
Flight Phase	cruise : level
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	569368
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	inflight encounter : weather non adherence : clearance other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : wx radar other flight crewa
Resolutory Action	other
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Weather
Primary Problem	Weather
Air Traffic Incident	Intra Facility Coordination Failure

Narrative:

Was on direct heading to iah, approximately south of hrv VOR. Talking to hou center. Told 'cleared to deviation left or right.' contacted hou on 133.65. Checked in with hou. I told them we would be deviating to the right for a short time for WX. Hou replied 'unable right, go left.' I initially said ok, then said unable, coming right. I was later advised no traffic problems, everything worked out. I had to exercise my command and emergency authority/authorized to stay out of a very large and isolated circuit breaker hidden to us in the clouds.

Original NASA ASRS Text

Title: AN ACR PLT USES EMER AUTH TO AVOID WX.

Narrative: WAS ON DIRECT HDG TO IAH, APPROX S OF HRV VOR. TALKING TO HOU CTR. TOLD 'CLRED TO DEV L OR R.' CONTACTED HOU ON 133.65. CHKED IN WITH HOU. I TOLD THEM WE WOULD BE DEVIATING TO THE R FOR A SHORT TIME FOR WX. HOU REPLIED 'UNABLE R, GO L.' I INITIALLY SAID OK, THEN SAID UNABLE, COMING R. I WAS LATER ADVISED NO TFC PROBS, EVERYTHING WORKED OUT. I HAD TO EXERCISE MY COMMAND AND EMER AUTH TO STAY OUT OF A VERY LARGE AND ISOLATED CB HIDDEN TO US IN THE CLOUDS.

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.