NUFORC UFO Sighting 179866
Occurred: 2023-12-30 07:15 Local
Reported: 2023-12-30 08:22 Pacific
Duration: ~10 minutes
No of observers: 1

Location: Diamond Bar, CA, USA

Shape: Unknown
Viewed From: Land
Angle of Elevation: 45


I was asleep and I heard a low rumbling from outside

It sounded like a low rumble, almost like a plane passing overhead. Only it didn’t grow or fade, it persisted at a constant rate. I thought maybe the heat in the house turned on but there was nothing around me that could be making the noise. I thought it could be thunder but it never stopped. Then it just stopped, all at once. It sounded like it had to be coming from outside. I thought it could be an earthquake but I didn’t feel any shaking. Just a low hum. I frightened me because I just had a nightmare, I wasn’t sure if it was connected. The hum happened twice in the night, the second time was around 7:15 in the morning, I’m not exactly sure when the first one was, but they both lasted about the same time. It was raining a little in between the two hums, so I thought it was thunder, but I never heard thunder for that long and that persistent and monotone. It didn’t sound mechanical. I don’t want to be contacted about this, but I would not mind answering any further questions if needed. I simply wanted to report what I experienced.

Posted 2024-02-15

NUFORC UFO Sighting 123167
Occurred: 2015-10-26 18:10 Local
Reported: 2015-10-26 20:30 Pacific
Duration: 10 minutes
No of observers: 16

Location: Diamond Bar, CA, USA

Shape: Light
Characteristics: Lights on object

8 lights, crescent formation, in an odd cloud, moved in unison, disappeared in order from left to right as they exited the cloud.



Posted 2015-10-29

NUFORC UFO Sighting 122832
Occurred: 2015-10-10 06:55 Local
Reported: 2015-10-15 00:33 Pacific
Duration: 30 seconds
No of observers: 1

Location: Diamond Bar, CA, USA

Shape: Changing
Characteristics: Aura or haze around object, Changed Colo

Shape shifting UFO following flying snake

Was driving my transit bus around 645 heading south on reservoir Ave in Pomona and saw a round shape object flying low heading westbound on mission blvd it was about 30 yards in the air, I thought it was a ballon but i kept observing it until i saw it change shape and it went from a round ball shape into what i could only describe as a crumble up piece of paper that what floating away. I thought maybe it was a ballon and it exploded. So im traveling south on mission and get on the 60 westbount towards los angeles I try to see if i see the object were it was traveling and i did not see it no more, but then after passing diamond bar highschool and note im on the 60 westbound in my bus passing golden springs i see the object again and i saw it change shape from a crumble up piece of paper to a ball like shape and the change to a square and finally turn in to a triangle i was amazed because i habe never seen nothing like it and the object was black by the way. I could not belive what i saw next it was following a creature of some sort i look like a jelly fish like snake but move like it was in water in a up and down motion and it look like it jad fins but the were glowing purple it look like a flying snake but jelly fish like i was surprise i wanted to stop but i couldn't because i was driving my transit bus and i was deadheading from yard to my start up location in rowland heights and the weird thing os i heard stories of friends and family members seeing thing over the skies of pomona but never belive until i saw it my self i put thease here because another driver told me they saw some like what I saw but it was on the 10 freeway also in the pomona area i really think something is going on here and it would be great if some of you guys could check it out for your self. The time of my sighting was around the dawn hours and the other driver also saw his in dawn my other family seen it around 2am morning hours.

Posted 2015-10-16

NUFORC UFO Sighting 116601
Occurred: 2015-01-09 19:00 Local
Reported: 2015-01-09 20:38 Pacific
Duration: 4 minutes
No of observers: 2

Location: Diamond Bar, CA, USA

Shape: Other


if you want to see it i got it on my phone and its on my facebook




((ADDENDUM FROM WITNESS))

Hi Peter,

So here goes. My wife and I were sitting in our backyard in the Jacuzzi (as we do every night) watching the planes come in to land at LAX. Have lived here for 18 years and sit outside at night often.

Well, she was talking to me and I was staring up at the sky cause I saw a bright light that didn't look familiar and it was moving slow, going away from us, stopping on a dime and then slowly coming back. Its flight pattern was irregular. I thought perhaps it was a helicopter (I am a helicopter pilot) doing a circular holding pattern over a traffic accident as sometime they do. The only thing that didn't make sense was how bright it was and not being able to see any flashing lights...at least not yet. And then of course how it was moving. It was southeast of our house and proceeded to move all over the sky. Not super-fast, but faster than anything else at that altitude which is what also made it stand out. So I jumped out of the Jacuzzi (we had been watching it for about 2 minutes by then) and I ran in and grabbed my phone.

At one point it looked like it turned (without moving in the sky) and we saw red blinking or flashing lights for about 5 seconds. It moved all over the sky in a random fashion. It was not a helicopter or plane. I went on a site and tracked the aircraft in the areas at around 6:45-6:55 pm and did not see any helicopters. Of course with all UFO video, sometimes it is hard to see what is going on. I backed out on one of the videos so you could see the palm trees in my back yard as a reference for how it was moving. There are street lights in the picture, but I think you will get a good picture from the video. It went beyond the horizon of our backyard and that's when we lost it. Could it have been a drone? Sure, but since I don't know what drones with lights look like and have never in all the time I have lived here seen what I saw last night, I decided to report it to you guys based on the recommendation of a friend that is familiar with ya and after he had seen the videos.

They are on my facebook. ((address deleted)) There are two of them.

((name deleted))

Glad I could help in any way. Not saying it was extraterrestrial, just that I have never seen anything like that. You will see a jet coming into land at LAX and I wondered if they saw it.

NUFORC Note:

We have requested more information, and a copy of the photo, from the witness. PD


Posted 2015-01-16

NUFORC UFO Sighting 92028
Occurred: 2012-07-20 12:00 Local - Approximate
Reported: 2012-08-21 14:11 Pacific
Duration: 90 seconds
No of observers: 2

Location: Diamond Bar, CA, USA

Shape: Triangle
Characteristics: Lights on object

My girlfriend and I saw a two story pyramid with bright lights rolling up hill on Grand Ave in Diamond Bar California

While returning home from the dental office, Near Grand and Diamond Bar Blvd, in Diamond Bar California...my girlfriend and I saw a strange lighted object approaching. We had just pulled out our parking space, my girlfriend drove and as she drove towards the main street we noticed an object brightly lit up rolling up the hillside.

Excited, my girlfriend parked the car in order to take a picture, the object stopped right in front of us and hovered for approximately 30 seconds.

The object was shaped like a pyramid, but the top was flat...there were lights on all four corners. one white, one blue, one red and one amber.

The object had a large bubble in the center and the object seemed to roll around it...I also noticed what looked like air vents and a couple of access panels of sorts. The object was approximately 2 stories high and it were gold in color or so it seemed to take on the color of the sun.

Now we're both outside the car and she's trying to take the picture with her cell phone...the objected stopped directly behind some trees that had been trimmed recently and right next to a condo complex on Grand Ave.

Unable to get a clear picture my girlfriend and I thought the object attempted to avoid us taking a photo...just as she snapped the shutter the object proceeded to roll back down the hill towards Diamond Bar Blvd.

We got back in the car and made the right turn down Grand Ave to Diamond Bar Blvd, I kept my eye on the onject as it changed direction and rolled away behind the shopping center. i at first thought to follow and see if i could possibly get a better shot at an picture, but the object began to pull away at an rapid rate of speed.

We told ourself not to say anything, but I cant seem to stop seeing in my dreams each night. Plus this isnt my first sighting, but lets let that go!!! I'm a man of many skills...i could build my own aircraft and I know what a weather balloon looks like!!! This was too big to be a radio control craft as well!!!




NUFORC Note:

Witness indicates that the date of the sighting is approximate. PD


Posted 2012-09-24

NUFORC UFO Sighting 87641
Occurred: 2012-03-13 06:00 Local
Reported: 2012-03-13 11:29 Pacific
Duration: 15 minutes
No of observers: 2

Location: Diamond Bar, CA, USA

Shape: Teardrop
Characteristics: Lights on object, Aircraft nearby

teardrop orb - lights moving rnd bottom, bright bright light on top-stay n place 10mn moved then diasppeared into air 3 helictrs chase

Posted 2012-03-13

NUFORC UFO Sighting 80195
Occurred: 2011-01-12 00:00 Local
Reported: 2011-02-23 11:19 Pacific
Duration: 30 mins
No of observers: 2

Location: Diamond Bar to Riverside, CA, USA

Shape: Triangle
Characteristics: Lights on object

I and my carpool buddy leaving work were going east on the 60 freeway at Diamond Bar, CA, around midnight. We spotted what appeared to be unusually large and bright stars in the sky.

We soon noticed they were moving about, but not acting at all like a plane or helicopter. They would jet about and disappear at will.

My buddy (passenger) opened the sun-roof and watch over head. He saw one come close enough to tell it was triangular in shape.

While we passed the Ontario Airport a passenger plane was taking-off and you could clearly tell the difference from these UFOs. Their lights were extremely bright white.

I tried to keep my eyes on one, but they would zoom off and seem to disappear, but then more would come closer.

We've since seen others while traveling this same route on different days around midnight, but never as many as that night; one actually descended at hyper-speed (faster than gravity) and disappeared behind a hill before we reached Riverside.

Posted 2011-02-23

NUFORC UFO Sighting 13679
Occurred: 2000-08-04 09:15 Local
Reported: 2000-08-05 00:00 Pacific
Duration: 10 min.
No of observers: 1

Location: Diamond Bar, CA, USA

Shape: Circle
Characteristics: Left a trail

I was looking out the backyard at the mountains toward orange county border, and saw a white ball of light around the 57 freeway, about 1500 feet. Its had a short tait, and then blinked out after a short time, it must of been seen by more people, it was to low to be a falling star. Its just vanished.

Posted 2000-08-19

NUFORC UFO Sighting 10816
Occurred: 1999-11-16 07:15 Local
Reported: 1999-11-16 00:00 Pacific
Duration: 30 seconds
No of observers: 1

Location: Diamond Bar, CA, USA

Shape: Disk


Observed disk shaped craft with dome while traveling n/bound on 57 FWY.

While traveling northbound on the 57 freeway thru the city of Diamond Bar, driving my semi-tractor and trailer, I saw a white or highly reflective disk shaped object move from right to left ( westbound ) across my field of vision. The object had no appendages except for a slight dome on top which appeared which less reflective or more translucent than the rest of the craft. Having flown and soloed in aircraft ( but never completed enough hours for a private rating ) before, I would estimate its altitude as somewhere around 5,000 feet, its airspeed between 100-125 knots, and its distance from me possibly 3-5 miles. Although I didn't have time to look around while driving, I'm sure others must have seen this incredible sight too.

Posted 1999-11-17

NUFORC UFO Sighting 5978
Occurred: 1999-03-13 23:00 Local
Reported: 1999-03-21 00:00 Pacific
Duration: 2 seconds
No of observers: 1

Location: Diamond Bar, CA, USA

Shape: Sphere


I'd just finished watching a video and had gathered my things to go upstairs. When I walked into my bedroom I saw I'd left the drapes pulled completely back, so I decided not to turn on my lamp just yet. I stepped to the window instead just to look out at the street and the sky. And standing there in the dark of my room, I see what I'd best describe as a luminous green object, shoot downward from the southeast. It headed in a mostly western direction and slightly to the north. It was larger than the Hale-Bopp comet had been when it appeared in out skies, with an appearance similar to a comet, having a tail. Quite good sized, considering it was under the cloud cover. You know how fast a shooting star is? Well that's how this thing moved - *that fast! It disappeared from my vision when it passed the roofline of the 2-story building across the street. I turned to my clock to see it was 11:00 p.m. Since I'm not sure what the definition of a "green fireball" is, I don't know if that's what I saw. But I can tell you I was kinda dumbfounded. I just stood there and quietly said, "What was *that". This was nothing like any of the other craft I've seen over the years, that's for sure.

Posted 1999-04-02

NUFORC UFO Sighting 3978
Occurred: 1998-09-18 21:00 Local
Reported: 1998-09-23 00:00 Pacific
Duration: 1 minute
No of observers: 0

Location: Diamond Bar, CA, USA

Shape: Oval
Characteristics: Aura or haze around object

Green Pulse light seen for the second time in Diamond Bar. Last year the same light went horizonal across the sky. It was traveling faster than a jet. Very fast, but straight. This light just showed up from nothing! It was very bright and green and pulse down slowly down to ground.

Green pulse seen in Diamond Bar last Friday night. I did not report it until I heard people in Seattle have seen one. I thought you should know. It is the second green pulse light see in a year over Diamond Bar. The one Friday night at appox. 9:00 showed up very low like 1500 feet in distance. It was stopped in air, and went down toward earth. The area I figure was a hills and cows pasters. It was a green, light that flashed also white, but pulsed more green.

Posted 1998-09-26

NUFORC UFO Sighting 4974
Occurred: 1989-10-20 18:30 Local - Approximate
Reported: 1998-12-04 00:00 Pacific
Duration: 5 minutes
No of observers: 50

Location: Diamond Bar (on the 57), CA, USA

Shape: Changing
Characteristics: Lights on object, Emitted other objects

Very intense light moving and changing course rapidly causing cars to pull off highway and stop. All lights shot into sky getting smaller and smaller until so far away you could not see.

On my way to Mount SAC college from Costa Mesa in the early evening, my ex-wife and I where on the 57 highway going about 60 MPH. I was distracted by a very intense light by the horizon on the hills where ther are no houses or roads. This very intense disc of light made is way over the side of the 57 highway and was causing cars to start pulling over to side of the road on both roads. It would come closer and lower and then go back up and farther away. It took me about a minute to stop the car and get out. By that time it was gone. The way it disapeared was very strange. It shot up into differnt spots in the sky that were not to distant, however; Every time it would move it would go from a complete stop to an increadable speed in an instant. It would also go from an increadible speed to a complete stop in an instant. At the end it seemed to break up into about 8 distinct balls of light that were many miles up in the air. I am very good with estimating speed and acceleration of jets and rockets. I would estimate that this object must have accelerated to a speed of 10,000 MPH in a fraction of a second only to come to a complete stop and accelerate again on a vector that was in the opposite direction. I know that this was not any aircraft or lightning. I know many others had seen it. I have recently stopped mentioned it to people, because most people either dont care or think that I am not correct.

Posted 1999-01-28

NUFORC UFO Sighting 25860
Occurred: 1978-06-12 00:00 Local - Approximate
Reported: 2002-10-30 10:41 Pacific
Duration: 15 MINUTES
No of observers: 2

Location: Diamond Bar, CA, USA

Shape: Unknown
Characteristics: Left a trail, Changed Colo

one craft intered and stoped east of me moved to my south viewed me met two other craft and left in a tryangel formation

i and i good frond on or about midinght in the year 1978 were travling do so on old diamond bar buld. this was a very dar k area betwen towns a 5 mile back road with no lights . my self and my friend both spoted wyat apeared to be a faling star. stricking across the sky. moving form so to our east with a long trail. but it did not burn out. it stoped. i puled my trucl off the road and we watched it in the skydo east of us whtch would not be near chino airoprt. it looked just like any other srat in the sky that night but i had my finger pointed at it and kept tellin g\my friend to not tkes his eye off it becasue falling stars do not stop.as we looked it moved in about two tents of a second to our south about 3 miles do south of us now it just sat ther over the top of the hill witch would now be the tonner canyon road exet off the 57 fry near brea calif.we then drive do south to get a closer look and stoped about ome mile from it. we stoped in a lighted parking lot of a closed alpha beta store on south diamond bar blvdand watehed it as it then aproched us getting sloser to us as it moved north it became larger and larger and it turned from white like a star in the night sky to a bright orange like a sunset. tell it was taking up most of the sky. we left the truck and ran north but figured it was to large to run from and teturned to the truck and hid behind it. i them moved back to the south very slow tell it was bout a mile to our south and just a small white not again, at that time to craft came uo from behind the hill is was hovering near then wer the same as it was except they were some what jitery in ther movement intell the three forme da triangel.at that time all three went do east and up leaving a ssmall trail as them left this earth in a flash. that is it..ps i am a pilot now it that can help you this was not form this earth



NUFORC Note:

Date is approximate. PD


Posted 2002-11-04

NUFORC UFO Sighting 22689
Occurred: 1977-09-01 18:30 Local - Approximate
Reported: 2002-04-30 06:54 Pacific
Duration: 20 minutes
No of observers: 500

Location: Diamond Bar, CA, USA

Shape: Chevron
Characteristics: Lights on object, Emitted beams

Huge flying saucer type object observed closely on Pomona Fwy near Diamond Bar, CA in 1978.

This incident has bothered me for years. I had just finished a round of golf at Friendly Hills Country Club in Whittier and was headed of the Victoria Station in Covina to meet friends for dinner.

We had not been drinking and I do not do drugs and I was a corporate executive in downtown LA at the time. I entered the Pomona Fwy just east of the 605 Fwy at Hacienda. I headed east looking to catch the Orange Fwy North to the San Bernardino Fwy. i noticed as I got on the Fwy what looked like headlights or landing lights for a jet coming in and it seemed low to me. The traffic started getting slow and I began to notice the lights closer to the fwy and wondered if not a plane going to LAX if could be lights for workmen or perhaps a movie being made, which is common in the LA area. As I got close somewhere near the Orange Fwy connection what I was observing was a huge object with many lights on the bottom just hovering about 100 feet over the freeway. The traffic was just crawling and some had pulled over and were our of their cars including The CHP. I got a good closeup look as I drove directly under it and seemed to be in shock. i elected not to stop so continied on and noted that a mile or so away off to the southwest in a residential area in Diamond Bar was another similiar strange vehicle hovering over homes on a hill. I continued to my destination. I never heard anything on the news or from another person but at that time of day hundreds if not thousands had to have seen what I saw.



NUFORC Note:

Date is approximate. Witness held a position of considerable responsibility at the time of sighting. PD


Posted 2002-05-14