National Weather Service deploying weather balloons more often to predict hurricane

Frederick Owens
September 11, 2017

The National Weather Service says that the impacts of Irma on the Philadelphia region will be limited based on current tracking models for the Category 4 hurricane. "Some areas may receive flooding, primarily south of a Florence to Myrtle Beach line", according to the weather service briefing on the storm.

The American equivalent is called the Global Forecasting System (GFS), run by the National Weather Service. Geelhart says that the office also conducts special weather balloon launches prior to an expected severe weather outbreak in our area.

The remains of tropical storms and hurricanes have made themselves felt here in the past, so it would behoove all of us to exercise a little judicious common-sense caution and preparation before we start to see impacts from Irma.

Rain from Hurricane Irma may reach parts of southeast Missouri and southern Illinois Tuesday afternoon, the National Weather Service said. The storm will be lose much of its strength by Wednesday, said forecasters.

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"We can use that information locally to predict our weather".

A Storm Surge Warning and a Flash Flood Watch are also in effect for Chatham County. The predicted track of the hurricane has shifted further to the west in relation to earlier predictions.

As thousands of Floridians flee Hurricane Irma's path for higher, drier land, one Alabama community is helping keep them fed on the road to safety.

Their visual solution has always been the "cone of uncertainty", a chart that shows the spectrum of possible paths for the center of the hurricane over the next 3-5 days. While they're useful data points for forecasters to interpret, numerous forecasts don't work well as standalone products, and imply that forecasters have no idea what's going on. An inch or 2 of rain appears to be likely on Tuesday, perhaps a little more along the Blue Ridge, where a persistent easterly to southeasterly upslope flow will lift moisture against the mountains.

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