Sebastian Harkema
@wxsharkema.bsky.social
Atmospheric Science | PhD UAH '23 | M.S. UAH '19 | B.S. CMU '17 | Opinions are my own
While many people were watching the snow accumulating, the Geostationary Lightning Mapper was busy observing #thundesnow. This is just a friendly reminder that #thundersnow is much more common than you think. 🧪
January 6, 2025 at 9:56 PM
While many people were watching the snow accumulating, the Geostationary Lightning Mapper was busy observing #thundesnow. This is just a friendly reminder that #thundersnow is much more common than you think. 🧪
Now that's a lot of #thundersnow from 5 December 2024. I've had family/friends in Michigan reach out to me and say they thought they saw/heard it 🧪
December 6, 2024 at 5:21 PM
Now that's a lot of #thundersnow from 5 December 2024. I've had family/friends in Michigan reach out to me and say they thought they saw/heard it 🧪
The NASA SPoRT sea surface temperature plot looks spotty owing to the multi-day blending methodology. This product blends 7 days worth of satellite data to reduce gaps caused my persistent cloud cover which is extremely common in the Great Lakes during the winter.
November 30, 2024 at 7:07 PM
The NASA SPoRT sea surface temperature plot looks spotty owing to the multi-day blending methodology. This product blends 7 days worth of satellite data to reduce gaps caused my persistent cloud cover which is extremely common in the Great Lakes during the winter.
The Great Lakes and Northeast regions have been experiencing a plethora of #thundersnow flashes and lake-effect snow. This is caused by cold arctic air moving over the relatively warm waters of the Great Lakes, as shown by the NASA SPoRT SST product. 🧪
November 30, 2024 at 7:03 PM
The Great Lakes and Northeast regions have been experiencing a plethora of #thundersnow flashes and lake-effect snow. This is caused by cold arctic air moving over the relatively warm waters of the Great Lakes, as shown by the NASA SPoRT SST product. 🧪
Thanks for the validation data point! @wxkaitlynj.bsky.social
November 22, 2024 at 12:37 PM
Thanks for the validation data point! @wxkaitlynj.bsky.social
No thundersnow was observed yesterday. However, all the snowfall images on here have brought me a lot of joy!
November 21, 2024 at 10:37 PM
No thundersnow was observed yesterday. However, all the snowfall images on here have brought me a lot of joy!
November 16, 2024 at 11:38 PM
Post a picture you took (no description) to bring some zen to the timeline.
November 16, 2024 at 8:52 PM
Post a picture you took (no description) to bring some zen to the timeline.
Daily thundersnow summary for 13 November 2024. It looks like Colorado was the winner. 🧪
November 14, 2024 at 10:56 PM
Daily thundersnow summary for 13 November 2024. It looks like Colorado was the winner. 🧪
Thundersnow flashes that GLM-East observed on 12 November 2024. These flashes were classified by an algorithm that I developed as part of my masters thesis (6 years ago). Going forward, I'll be posting daily summary maps similar to this.
November 13, 2024 at 9:37 PM
Thundersnow flashes that GLM-East observed on 12 November 2024. These flashes were classified by an algorithm that I developed as part of my masters thesis (6 years ago). Going forward, I'll be posting daily summary maps similar to this.