Why Houston meteorologist Frank Billingsley says hurricane winds can be a forecaster’s nightmare!

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Measuring hurricane winds from top to bottom are a forecaster's challenge! Frank — just out of curiosity, if a hurricane’s winds are measured at say 120 mph at ground level at landfall, how high up the hurricane “wall” is that windspeed still registering at 120 mph, or does it diminish or increase in speed at increasing heights? Or does windspeed in fact vary considerably throughout the hurricane? Jim Actually, Jim, the answer is in the last part of your question as every storm is different, hence, wind speeds can vary from top to bottom, bottom to top, and somewhere in between!, of course, recognizes the importance of knowing just how strong the wind speeds are at the ground level not just because that’s where everything is built, butwhich is also at the bottom of the storm. In general, wind speeds are about 90% lower from top (10,000 feet) to bottom (your feet), but that can vary considerably depending on the storm.flight level had winds no higher than 150mph. A standard ‘reduction’ factor would assume surface winds were 135mph

Frank — just out of curiosity, if a hurricane’s winds are measured at say 120 mph at ground level at landfall, how high up the hurricane “wall” is that windspeed still registering at 120 mph, or does it diminish or increase in speed at increasing heights? Or does windspeed in fact vary considerably throughout the hurricane? Jim

Actually, Jim, the answer is in the last part of your question as every storm is different, hence, wind speeds can vary from top to bottom, bottom to top, and somewhere in between!, of course, recognizes the importance of knowing just how strong the wind speeds are at the ground level not just because that’s where everything is built, butwhich is also at the bottom of the storm.

Probably the more useful measurement is how winds can increase from the surface to just 30 stories up. Consider how many high rises we have built and continue to build in Houston. A prime example of higher winds the higher you go was during Hurricane Georges .

1 dead, 13 injured after man ‘intentionally’ crashed 18-wheeler into Brenham DPS office because he was denied CDL

Hurricane Winds Forecaster Challenge Storm Wind Speeds

 

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