Dawson Yang

WRF Total Ice Accumulations. Based off QPF and FRAM algorithms. Domain focused on the Southeastern US.

WRF Total Snow Accumulations. Based off 10:1 and Kuchera Method algorithms. Domain focused on the Southeastern US.

Did a little experimentation running WRF on local hardware for this winter storm. Took maybe about 3.5 hours to run from download to finish.

27km res with GFS initialization (Run date: 2026-01-22-00z). Totals calculated between (2026-01-23-12z thru 2026-01-26-00z)

GitHub - dyangxc/Severe-Weather-Forecasting-Game: Severe Weather Forecasting Game, a forecasting game utilizing archived data from NOAA, NWS, WPC, SPC, and IEM Severe Weather Forecasting Game, a forecasting game utilizing archived data from NOAA, NWS, WPC, SPC, and IEM - dyangxc/Severe-Weather-Forecasting-Game

Github repo:
github.com/dyangxc/Seve...

Supported OS:
Windows

Image from severe weather forecasting game showing a case from 4/27/2011.

Today, I am releasing a severe weather forecasting game where you make a forecast similar to the Storm Prediction Center. Your main goal is to get as close as you can get to the SPC's highest outlook issued on a random day. Image is from 4/27/2011. Enjoy and happy holidays!

Eye of Hurricane Melissa taken from Sentinel 2A. Imagery date 2025/10/28

Closer view of the ocean within Hurricane Melissa's eye. Note the calm waters in the center and rough seas towards the edge indicating where windspeeds vary.

Sentinel 2A imagery showing the details in the northeastern eyewall.

Overview of Sentinel 2A imagery of Hurricane Melissa.

Processed Sentinel 2A imagery from Copernicus Browser of Hurricane Melissa. 10 meter true color composite is absolutely breathtaking! Check out all the details in the eye. Crazy structure and cool to see the wind gradient on the ocean surface.
Imagery Date: 2025/10/28

National Hurricane Center 1:00PM EDT update for Hurricane Melissa declaring landfall in Jamaica as a Category 5. Winds 185mph sustained. Pressure 892mb.

GOES 19 Mesoscale Sector 1 True Color Imagery from the College of Dupage NEXLAB showing where Hurricane Melissa was at the time of landfall at 1:00PM EDT.

Hurricane Melissa makes landfall in Jamaica as a Category 5 at 1:00PM EDT per National Hurricane Center.
Winds: 185mph
Pressure: 892mb
GOES-19 Mesoscale Sector 1 True Color Imagery Provided by College of Dupage NEXLAB

Four radar products on the projector showing, from top left going clockwise, base reflectivity, storm relative velocity, potential tornado debris signature, and correlation coefficient. The radar products were overlaid with a satellite path created from research work involving bare soil detection.

Path comparison showing the bare soil index closely matches with National Weather Service on the ground surveys of the Bassfield, Mississippi EF4 tornado.

Sentinel 2A Bare Soil Index showing where the tornado tracked across the study area. Black representing the satellite derived tornado path and red showing the NWS tornado survey path.

Sentinel 2A true color imagery composite showing the damage scar left behind the 2020 Bassfield, Mississippi EF4 tornado. Imagery taken in June 2020.

Honored to speak at the 2025 Georgia Resiliency Conference. Presented my research on the 2020 Bassfield, MS tornado and the advantages of using the Bare Soil Index for tornado detection and surveying.
I'm working on another project involving another tornado, should be out soon!

Bare soil analysis on the EF5 Enderlin, ND tornado. Darker areas showing higher areas of soil exposure reflected being reflected back.

Bare soil analysis overlaid with NWS survey items on the EF5 Enderlin, ND tornado. Darker areas showing higher areas of soil exposure reflected being reflected back.

Quick Bare Soil Index (BSI) analysis on the recently rated EF5 Enderlin, ND tornado. Amazing how much soil exposure had occurred!

Public information statement regarding the upgrade of the Enderlin, ND tornado. This tornado marks the first EF5 in 12 years since Moore, OK 2013.

The National Weather Service has upgraded the Enderlin, ND to an EF5. This marks the first time since an EF5 was rated 12 years ago, in 2013. Also interesting to note, this tornado also occurred on the same date as the 1957 Fargo, ND tornado.

Nice to watch visible satellite imagery overlaid with European ensemble tracks. #Humberto out to sea and hopefully #Imelda follows suit. Looking forward to more fall weather ahead!

11pm National Hurricane Center Advisory 4 update on Tropical Depression Nine. This storm is likely to become the named storm Imelda. The forecast cone tracks along the Southeastern US and curves out to sea by Wednesday.

At 11AM EDT the National Hurricane Center has upgraded PTC 9 to Tropical Depression 9. This storm is expected to become Tropical Storm #Imelda later today.
Latest models trending away from landfall and likely to recurve out to sea.

On May 2, 2025, GAWX, a X-Band radar, captured the storm that produced an EF1 tornado near Gainesville, GA. #gawx #wx #weather #tornado #radar

Shortwave Infrared reflectance pixel change comparison between Sentinel 2A and Landsat 8. Both images for this comparison analysis had satellite imagery taken in June of 2019 and 2020. Blue polygon is NWS tornado survey.

Check out this cool map showing the Shortwave Infrared reflectance increasing after the 2020 Bassfield, Mississippi tornado! SWIR increases in value as more soil is exposed. Blue polygon is NWS survey. #weather #wx #tornado

The following image shows optimal viewing areas for atmospheric and weather phenomena across the Southern US. Green areas are best options while red are the worst.

I have created a map that allows users to determine where optimal viewing areas are for atmospheric and weather phenomena on ArcGIS Online! This map also includes NWS watches/warnings, radar, and satellite imagery.
Map: arcg.is/0jH49S0

#ArcGIS #weather #wx

Hello! I do GIS, geography, and meteorology. Please feel free to take a look around. Thank you for stopping by, have a great day~