Tim Armstrong

@ilmthunderstorm.bsky.social

NWS meteorologist in Wilmington, NC, USA⛈️ Environmentalist, retro gamer, gardener, birder and space afficionado🚀 Perhaps the oldest Hatsune Miku Colorful Stage player Loves: democracy, empathy, Star Trek, Epcot, anime, and cuddly housecats 😸

3 to 5 inches of rain is forecast to fall across coastal North and South Carolina over the next few days. Although Hurricane Isaias will make all the headlines, Hysplit ensemble back-trajectories show moisture feeding the heavy rain here should originate from the Caribbean & Atlantic, not the Gulf.

Five day rainfall forecast from the NWS Weather Prediction Center. Coastal North and South Carolina are forecast to receive 3 to 5 inches of rain.NOAA Hysplit ensemble back-trajectory model at 700 mb (3200 meters) shows air parcels arriving over the coastal Carolinas during the heaviest of the rain Saturday night will likely originate from the Caribbean and Atlantic.

I visited the NC Agricultural Research Station near Whiteville this week to present them with an award for providing 15 years of daily cooperative weather observations to the NWS in Wilmington. Their staff were beginning to harvest peanuts in the surrounding fields.

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Did you know a Moon impact creates thermal 'cold spots'? Data from NASA's LRO reveals a 4-mile-wide zone around the new McGetchin crater that is 16°F cooler at night. The crash fluffed up the lunar soil, making it less dense and less able to hold heat! 🌡️🌕

4.31" of rain from Sunday's thunderstorms made yesterday the wettest day in my backyard since Hurricane Dorian dumped nearly 8" back on September 5, 2019. Shown here: MRMS average return interval and radar precipitation estimates.

MRMS analysis images showing average return interval in years for precipitation on the left, and radar-estimated precipitation on the right.

This morning's Roman telescope launch wasn't visible from here (bright sky, too late after sunrise) but watching NASA's livestream reminded of this January 2023 Falcon Heavy launch I did get to see from Wrightsville Beach. This launch happened just after sunset and had perfect illumination

🚨🚨🚨According to NOAA NCEI, July 2026 was the warmest month on record for the Contiguous U.S. - beating out July 1936. This is devastating for climate deniers, who love July 1936 as a faux counterfactual. More importantly, it is devastating for all of us. 🔥🔥🔥

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Six years separate these two pics of Longleaf Pines I planted in my yard back in 2019. Over 90 percent of the historic Longleaf population has been lost across the Southeast US due to pressures from logging, suburban sprawl, and fire suppression.

A tiny Longleaf Pine in its grass stageRapidly growing Longleaf Pines with an expanding understory of Sago palms.