Nongfa makes landfall in Vietnam; Coastal GA/SC rain; ZOMG WHAT IS THAT?

Tropical Storm Nongfa is making landfall in Vietnam this morning. Ordinarily wouldn’t be too big of a deal, but this is the same area hit a few days ago with a Typhoon Kaijiki, compounding the misery/damage. Biggest threat is heavy rain and more flash floods and landslides.

Map showing the path and impact area of Tropical Storm Nonga as it approaches Vietnam, with indications of forecast track and estimated economic impact.

Elsewhere, no storms but a few disturbances. There will likely be a couple of new storms in the East Pacific forming in the next few days. They should stay offshore, although invest EP93 might be of interest to Hawai’i if tracks on the north side of the guidance and can hang together long enough.

Satellite image showing the NHC Tropical Weather Outlook, with two areas of potential storm formation in the East Pacific, marked with percentages indicating the likelihood of development.

Side note: ZOMG! WHAT’S THAT? Notice the white area blocked out at the upper left? You will be seeing that on satellite images for a few weeks. Twice a year, in March and September, for an hour or so the earth and sun are lined up (around the solstices). As the sun moves into the field of view of the camera, and the solar powered satellites go in to Eclipse Operations. Depending on the wavelength you will see a white or black area blocking out the sun. As I mentioned a few days ago, GOES also has a telescope pointed at the sun, and you can see the earth photo-bomb the images, moving across the field of view this time of year …

Satellite image of the Sun, showcasing active solar features and flares, captured by GOES East.

Back the earth: NHC has a wave coming off of Africa tagged at 30% long term, but it looks fishy. Literally 😛

Satellite image showing tropical weather patterns, highlighting a region in the East Pacific with an 80% chance of storm development and another area with a 30% chance, dated August 30, 2025.

There is light to moderate rain across the Frogmore Metroplex this morning …

A weather radar image showing low-level reflectivity across the Savannah, Georgia area, highlighting rainfall and storm activity.

and we may get some thunderstorms this afternoon but by evening should get a break. A weak front will be stalled just offshore for a few days. Thunderstorms and heavy rain will form along that boundary, and the exact position is hard to forecast. If it’s a little south or east, its offshore or somebody else’s problem (Brunswick and Jax). if it’s a little north or west, the “Coastal Empire and Low Country” (or Lowcountry) will care. Slow moving storms like this can cause the kind of spotty flash flooding and inundated streets we’ve seen this summer, so be aware if out and about this holiday weekend.


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