TCS025 Diurnal Change
TCS025 is strenghthening. 18Z is 4am local in Guam, early in the morning. As cloud tops radiate to space, they cool, lowering temperatures aloft more than at the surface. This increases convection. In the IR animation below you can see the convection pick up once again. TCS025 is still fairly elongated, and expected to move off quickly to the northwest, but for now it’s strengthening.
IR Animation showing a diurnal increase in convection.