EPeak Daily

A dramatic view of Tropical Storm Barry in contrast to any you might have seen earlier than

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An animation of GOES-16 satellite tv for pc imagery acquired within the infrared reveals the evolution of Tropical Storm Barry on Friday, July 12, 2019. The crackling white and blue areas are indicative of lightning exercise. (Supply: RAMMB/CIRA GOES-16/17 Loop of the Day)

Tropical Storm Barry is now anticipated to make landfall as a hurricane.

As I’m penning this Thursday afternoon, July 12, Barry is churning slowly over the northern Gulf of Mexico, strengthening because it tarries over heat water. Because it nears the coast after which pushes inland, the storm threatens to push up harmful storm surges and dump as much as 20 inches of rain.

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Storm surge is already an issue:

The Metropolis of New Orleans has ordered individuals to shelter in place, efficient at eight p.m. native time.

Officers are closing floodgates forward of what’s anticipated to be life-threatening flooding alongside the central Gulf Coast and into the Decrease Mississippi Valley.

The distinctive animation of GOES-16 climate satellite tv for pc photos on the high of this submit exhibits Barry over the Gulf between 9 and 11:30 a.m. native time right this moment. Consisting of infrared photos collected at one minute intervals, it’s an uncommon view (identified technically as “Day Cloud Section Distinction RGB“) displaying each the evolution of convective storminess and lightning exercise.

Click on on the picture to launch the animation and look carefully on the space simply to the north of the thick storm clouds. You must be capable to make out Barry’s swirling low-pressure middle.

Simply to the south, heat moist air is rising vigorously throughout a large swath of territory. As this occurs, clouds boil up, excessive and better into the ambiance — the phenomenon referred to as convection.

The false colours assist forecasters monitor how the storm clouds are rising. The change in coloration from orange to brilliant yellow signifies a transition from thinner to thicker clouds made up of ice crystals. In the meantime, inexperienced colours present the place water droplets in clouds are turning into ice particles — a course of known as “glaciation.”

Lightning exercise is seen as flickering blue and white patches. The exercise is mapped by a sensor aboard the GOES-16 spacecraft known as the Geostationary Lightning Mapper, or GLM.

The sensor repeatedly detects all types of lightning at excessive decision, each by day and at evening, and at a fee by no means obtained from area prior to now.

Right here’s what lightning appeared like inside Barry’s storm clouds, as seen from a NOAA Hurricane Hunter plane:

And right here’s one other view of Barry churning over the waters of the northern Gulf of Mexico this morning:

Tropical Storm Barry. (Supply: RAMMB/CIRA SLIDER)

As with the earlier one, this animation consists of photos acquired by GOES-16 at one-minute intervals. On this case, the imagery exhibits the storm in seen wavelengths of sunshine.

As day breaks and the clouds boil up, it virtually feels such as you’re watching the storm in actual time — from a vantage level about 22,000 miles above Earth’s floor.

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