female called our office advised that about 2045 she saw a "very pretty green light in the sky" was north of Las Vegas NMAt approx 2105 recieved a phone call from a female wanting to report a green light in the sky north of Las Vegas New Mexico she did not want to give her name or call back number. She advised that the light was very big. It was green in color sphearical in shape was only visible for a short while then disappeared. The weather conditions in the area were cold and windy the sky was clear but 25 miles north it was snowing. I asked officers out on patrol if they saw anything they advised negative. I am a police dispatcher and this is all the info the women gave me. no other calls were recieved.