It's a busy time in this Atlantic hurricane season.

Tropical Storm Karl has passed over the Yucatan Peninsula in Mexico, and is expected to make landfall on the mainland late Thursday or early Friday. The storm has strengthened since moving back into the Gulf of Mexico, with sustained winds up to 65 mph. While it has little chance of affecting the US, the Mexico City area is about to be buffeted by some serious wind and rain.

Out in the Atlantic, Hurricanes Karl and Julia are being watched by the astronauts in the International Space Station. The trajectory of both storms so far does not threaten the mainland US, but at 5 mph short of a Category Five hurricane, Hurricane Igor's massive size has earned it the nickname "Igor the Terrible" by American astronaut Douglas Wheelock, who took several photos and a video from the ISS.

NOAA does warn however, that swells from the storm are likely to create life-threatening surf conditions for much of the Caribbean and East Coast.

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Hurricane Julia is following right behind, but has died off in intensity from her big brother, with maximum sustained winds of 105 mph.

Igor and Julia are  moving west-northwest and are expected to grow in intensity and speed. Atlantic storms almost always do so as they move northward, so while the storms are not a direct threat to the US right now, they could become a danger with very little warning.

East Coast residents should stay updated on these storms through local media or NOAA updates, and of course, plan for evacuation and peppering their homes for impact.