WX report inaccurate.

Attributes
ACN	143341
Time
Date	199004
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ama
State Reference	TX
Altitude	msl bound lower : 3880 msl bound upper : 3880
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ama
Operator	common carrier : air taxi
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	descent : approach landing other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : cfi pilot : commercial
Experience	flight time last 90 days : 50 flight time total : 5800 flight time type : 150
ASRS Report	143341
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Was advised when east of okc that ama WX was approximately 20000' scattered 7000'. Continued to ama. 40 mi east of ama, approach control advised same WX, but then said, 'that can't be right,' then advised us that ama WX was 1000' obscured, 2000 RVR. Later, while on the approach, was advised that WX was perhaps as low as 1000 RVR. Broke out at minimums and could see about 1/2 mi visually. Aircraft landed uneventfully and WX improved. It is clear that ama was not properly reporting their WX until we were maneuvering for the approach. WX either suddenly deteriorated or ama WX personnel were not looking out the window.

Original NASA ASRS Text

Title: WX REPORT INACCURATE.

Narrative: WAS ADVISED WHEN E OF OKC THAT AMA WX WAS APPROX 20000' SCATTERED 7000'. CONTINUED TO AMA. 40 MI E OF AMA, APCH CTL ADVISED SAME WX, BUT THEN SAID, 'THAT CAN'T BE RIGHT,' THEN ADVISED US THAT AMA WX WAS 1000' OBSCURED, 2000 RVR. LATER, WHILE ON THE APCH, WAS ADVISED THAT WX WAS PERHAPS AS LOW AS 1000 RVR. BROKE OUT AT MINIMUMS AND COULD SEE ABOUT 1/2 MI VISUALLY. ACFT LANDED UNEVENTFULLY AND WX IMPROVED. IT IS CLEAR THAT AMA WAS NOT PROPERLY RPTING THEIR WX UNTIL WE WERE MANEUVERING FOR THE APCH. WX EITHER SUDDENLY DETERIORATED OR AMA WX PERSONNEL WERE NOT LOOKING OUT THE WINDOW.

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.