September always seems to be the month for tropical storms. With the remnants of Hurricane #Ida approaching #Pittsburgh here's a thread on tropical storms that have hit Western PA 👇
Number of tropical storms with measurable rainfall recorded by year 👇
Number of tropical storms with measurable rainfall recorded by decade 👇
Number of tropical storms with measurable rainfall recorded by month 👇
Tropical storm tracks to hit Western PA👇 coast.noaa.gov/hurricanes/#ma…
The top five all time 24 hour rainfall records in Pittsburgh are all tropical storms 👇
Here's an interactive rainfall totals map of Tropical Storm Gordon I made using high resolution radar rainfall data. Southeastern portions of the County had 9+ inches of rain over a three day period. arcg.is/0nHKDO0
In total, 59 tropical storms have brought rainfall to Western PA between 1876 to 2020. Ida is the 60th. It's hard to say if more tropical storms remnants are likely in Western PA with climate change based on the data. Although 2000 produced the most, 1890s were pretty rough too.
On average we get 3.86 tropical storms showing up in Western PA per decade. 47.4% of them show up in September. While 18.6% show up in August and 18.6% show up in October. Hope you enjoyed this thread and be safe out there! Turn around, don't drown.
Total rainfall in Western PA from Tropical Storms by year 👇
Total rainfall from Tropical Storms in Western PA by decade 👇
The average rainfall produced from all tropical storms is 1.49 inches with a variance of 1.95 inches. I got roughly 5 inches from Ida in my front yard rain gage, which would place it 3rd in terms of all time tropical storm total rainfall volumes if my rain gage were "official".
Total rainfall in Western PA from Tropical Storms by decade 👇
The average rainfall produced from all tropical storms is 1.49 inches with a variance of 1.95 inches. I got roughly 5 inches from Ida in my front yard rain gage, which would place it 3rd in terms of all time tropical storm total rainfall volumes if my rain gage were "official".
Allegheny County #Pittsburgh total rainfall estimates from #Ida. All of this rain started at ~12pm 8/31 and ended by ~12pm 9/1 so these can essentially be thought of as 24 hour totals.
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