Peter Asser
@peterasser.bsky.social
CU Boulder 2028 studying ATOC. Maryland Naitive, DC Sports fan, Weather nerd, and HRRR enjoyer.
Pinned
Peter Asser
@peterasser.bsky.social
· Jul 19
Before and after photos of flooding in the Rock Run in Potomac, MD
Reposted by Peter Asser
November 19th, 1998:
”Mr. Tornado,” Famed tornado researcher Theodore Fujita, passed away after a long illness on this date. Fujita was 78.
”Mr. Tornado,” Famed tornado researcher Theodore Fujita, passed away after a long illness on this date. Fujita was 78.
November 19, 2025 at 11:57 PM
November 19th, 1998:
”Mr. Tornado,” Famed tornado researcher Theodore Fujita, passed away after a long illness on this date. Fujita was 78.
”Mr. Tornado,” Famed tornado researcher Theodore Fujita, passed away after a long illness on this date. Fujita was 78.
Reposted by Peter Asser
Nights like this are the best. All the trouble of the world is momentarily set aside while we're collectively marveling at the pretty lights and nature together. This is how it's supposed to be. Life, I mean. Shared joy and all. 🙂
November 12, 2025 at 2:55 AM
Nights like this are the best. All the trouble of the world is momentarily set aside while we're collectively marveling at the pretty lights and nature together. This is how it's supposed to be. Life, I mean. Shared joy and all. 🙂
I really am surprised how bright it got down here
November 12, 2025 at 4:35 AM
I really am surprised how bright it got down here
Aurora visible here at CU Boulder
November 12, 2025 at 1:50 AM
Aurora visible here at CU Boulder
Reposted by Peter Asser
WOW. This might be a first – a formal special marine warning for SNOWSPOUTS, or winter waterspouts.
These are the same as warm-season waterspouts, but they're forming beneath snow squalls.
It's because of the EXTREME contrast between the warm lake waters and frigid air above!
These are the same as warm-season waterspouts, but they're forming beneath snow squalls.
It's because of the EXTREME contrast between the warm lake waters and frigid air above!
November 10, 2025 at 6:44 PM
WOW. This might be a first – a formal special marine warning for SNOWSPOUTS, or winter waterspouts.
These are the same as warm-season waterspouts, but they're forming beneath snow squalls.
It's because of the EXTREME contrast between the warm lake waters and frigid air above!
These are the same as warm-season waterspouts, but they're forming beneath snow squalls.
It's because of the EXTREME contrast between the warm lake waters and frigid air above!
Reposted by Peter Asser
Typhoon Fung-wong strengthened into a powerful, Category Four storm before slamming into the central coast of the island of Luzan in the Philippines on Sunday.
November 10, 2025 at 6:48 PM
Typhoon Fung-wong strengthened into a powerful, Category Four storm before slamming into the central coast of the island of Luzan in the Philippines on Sunday.
Reposted by Peter Asser
Simply incredible imagery of Hurricane Melissa this morning as it approaches Jamaica.
October 28, 2025 at 1:41 PM
Simply incredible imagery of Hurricane Melissa this morning as it approaches Jamaica.
Reposted by Peter Asser
An extremely powerful Category 5 Hurricane Melissa strengthening over the last 24 hours as it nears landfall in Jamaica.
October 28, 2025 at 3:59 PM
An extremely powerful Category 5 Hurricane Melissa strengthening over the last 24 hours as it nears landfall in Jamaica.
Reposted by Peter Asser
Major Hurricane Melissa makes a historic landfall near New Hope, Jamaica.
October 28, 2025 at 5:38 PM
Major Hurricane Melissa makes a historic landfall near New Hope, Jamaica.
Reposted by Peter Asser
Hurricane Melissa, now a Category 4 storm with an occluded eye, has crossed to the other side of Jamaica after making landfall a few hours ago.
October 28, 2025 at 9:51 PM
Hurricane Melissa, now a Category 4 storm with an occluded eye, has crossed to the other side of Jamaica after making landfall a few hours ago.
Reposted by Peter Asser
NEW: Terrifying video from the town of Black River in Jamaica.
The worst of storm surges - 200mph winds literally blowing the sea onto the land. #HurricaneMelissa
(📸 Yung Senshi)
The worst of storm surges - 200mph winds literally blowing the sea onto the land. #HurricaneMelissa
(📸 Yung Senshi)
October 28, 2025 at 8:31 PM
NEW: Terrifying video from the town of Black River in Jamaica.
The worst of storm surges - 200mph winds literally blowing the sea onto the land. #HurricaneMelissa
(📸 Yung Senshi)
The worst of storm surges - 200mph winds literally blowing the sea onto the land. #HurricaneMelissa
(📸 Yung Senshi)
Reposted by Peter Asser
1-minute #GOES19/#GOESEast Visible images showed that soon after making landfall, the eye of Hurricane #Melissa became cloud-filled as the storm interacted with higher terrain on the western edge of Jamaica.
October 28, 2025 at 8:58 PM
1-minute #GOES19/#GOESEast Visible images showed that soon after making landfall, the eye of Hurricane #Melissa became cloud-filled as the storm interacted with higher terrain on the western edge of Jamaica.
Reposted by Peter Asser
A display of pure power from Hurricane Melissa today.
Remarkable satellite imagery.
Remarkable satellite imagery.
October 28, 2025 at 1:22 AM
A display of pure power from Hurricane Melissa today.
Remarkable satellite imagery.
Remarkable satellite imagery.
Reposted by Peter Asser
From sunrise to sunset, Hurricane Melissa is still a Category 5 storm as it starts to move northward towards Jamaica.
October 27, 2025 at 11:24 PM
From sunrise to sunset, Hurricane Melissa is still a Category 5 storm as it starts to move northward towards Jamaica.
Reposted by Peter Asser
5pm EDT Oct 27th Key Messages for Category 5 #Hurricane #Melissa:
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
October 27, 2025 at 9:40 PM
5pm EDT Oct 27th Key Messages for Category 5 #Hurricane #Melissa:
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
#Jamaica: Remain in your safe shelter & do not venture outside. Catastrophic, life-threatening flash flooding & numerous landslides through Tuesday as Melissa's core moves ashore. hurricanes.gov
Reposted by Peter Asser
The monster eye at the center of a still strengthening Hurricane Melissa.
October 27, 2025 at 4:54 PM
The monster eye at the center of a still strengthening Hurricane Melissa.
Never thought I would strom a college football field, but today proved me wrong
October 11, 2025 at 11:27 PM
Never thought I would strom a college football field, but today proved me wrong
Reposted by Peter Asser
Reposted by Peter Asser
Pretty surreal to say I’ve officially documented an EF5 tornado. The first EF5 tornado since Moore 2013.
Enderlin, North Dakota - June 20, 2025.
Enderlin, North Dakota - June 20, 2025.
October 6, 2025 at 9:10 PM
Pretty surreal to say I’ve officially documented an EF5 tornado. The first EF5 tornado since Moore 2013.
Enderlin, North Dakota - June 20, 2025.
Enderlin, North Dakota - June 20, 2025.
Reposted by Peter Asser
The CSSL/NTP assisted the US National Weather Service (NWS) with their upgrading of the official rating of the June 2025 Enderlin, ND tornado from EF3 to EF5.
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
October 6, 2025 at 6:16 PM
The CSSL/NTP assisted the US National Weather Service (NWS) with their upgrading of the official rating of the June 2025 Enderlin, ND tornado from EF3 to EF5.
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
Reposted by Peter Asser
Tropical Storm Octave swirls over the Pacific Ocean, while Hurricane Priscilla moves northward along the western coast of Mexico.
October 6, 2025 at 6:20 PM
Tropical Storm Octave swirls over the Pacific Ocean, while Hurricane Priscilla moves northward along the western coast of Mexico.
Reposted by Peter Asser
@JustonStrmRider and I were mesmerized by this incredible supercell structure as the Enderlin, North Dakota EF5 tornado was occurring! This was the first official NWS-assigned EF5 tornado rating since the infamous Moore, Oklahoma Tornado on May 20, 2013. #ndwx
October 6, 2025 at 4:33 PM
@JustonStrmRider and I were mesmerized by this incredible supercell structure as the Enderlin, North Dakota EF5 tornado was occurring! This was the first official NWS-assigned EF5 tornado rating since the infamous Moore, Oklahoma Tornado on May 20, 2013. #ndwx
Reposted by Peter Asser
After further investigation, Enderlin tornado #1 in North Dakota on 20 June 2025 was upgraded to an EF-5 (the first EF-5 since 20 May 2013 in Moore OK!). More imagery and details on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-bl... #NDwx
October 6, 2025 at 4:51 PM
After further investigation, Enderlin tornado #1 in North Dakota on 20 June 2025 was upgraded to an EF-5 (the first EF-5 since 20 May 2013 in Moore OK!). More imagery and details on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-bl... #NDwx
Reposted by Peter Asser
Officials confirmed Monday that a June 20th tornado near Fargo, North Dakota, produced EF-5 damage. This is the first confirmed scale-topping twister since 2013.
www.damweather.com/2025/10/nort...
www.damweather.com/2025/10/nort...
North Dakota tornado upgraded to EF-5, the first in 12 years
This is the first confirmed EF-5 tornado since May 2013.
www.damweather.com
October 6, 2025 at 5:55 PM
Officials confirmed Monday that a June 20th tornado near Fargo, North Dakota, produced EF-5 damage. This is the first confirmed scale-topping twister since 2013.
www.damweather.com/2025/10/nort...
www.damweather.com/2025/10/nort...
Reposted by Peter Asser
Lightning flashes around the strong eye of a category 4 Hurricane Gabrielle.
September 22, 2025 at 11:19 PM
Lightning flashes around the strong eye of a category 4 Hurricane Gabrielle.