Narrative:

ASOS WX at XX56Z indicated that it had rained during the previous hour. The remarks gave a beginning and ending time for rain. The WX was clear, 70 degrees, and visibility 50+ mi. Once the obs was transmitted the remarks came out of the remarks box on the 1 min WX and so could not be edited out. The only way to eliminate the erroneous remarks would be to generate a special, even though the criteria for a special did not exist.

Google
 

Original NASA ASRS Text

Title: ASOS WX OBSERVATION RPTED RAIN HAD OCCURRED IN THE PREVIOUS HR. RPTR STATED WX WAS CLR AND VISIBILITY 50+ MI.

Narrative: ASOS WX AT XX56Z INDICATED THAT IT HAD RAINED DURING THE PREVIOUS HR. THE REMARKS GAVE A BEGINNING AND ENDING TIME FOR RAIN. THE WX WAS CLEAR, 70 DEGS, AND VISIBILITY 50+ MI. ONCE THE OBS WAS XMITTED THE REMARKS CAME OUT OF THE REMARKS BOX ON THE 1 MIN WX AND SO COULD NOT BE EDITED OUT. THE ONLY WAY TO ELIMINATE THE ERRONEOUS REMARKS WOULD BE TO GENERATE A SPECIAL, EVEN THOUGH THE CRITERIA FOR A SPECIAL DID NOT EXIST.

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.