This is for your "Rat says 6% more water in the air" file. Looks like it's gonna get thicker over the next 4 or 5 days.
Dangerous Flood Potential in Texas, Oklahoma from Invest 91L
By: Bob Henson and Jeff Masters , 3:46 PM GMT on June 15, 2015
Figure 3. Projected five-day precipitation totals from the NOAA Weather Prediction Center, for the period from 8:00 am June 15 to June 20, show the expected track of 91L around the high-pressure center in the southeast U.S. Image credit: NWS/WPC
The “brown ocean effect” and how it could keep 91L going
Tropical cyclones normally dissipate soon after coming ashore, but research over the last few years has shown how it’s possible for a tropical cyclone to maintain its strength or even intensify over land. The most dramatic example is Tropical Storm Erin, which weakened to a depression after landfall on the Texas coast before unexpectedly strengthening over west central Oklahoma three days later. On the night of August 18-19, 2007. Erin’s central pressure dropped from 1007 to 995 mb, and its peak sustained surface winds jumped from less than 25 mph to around 60 mph. A 2011 study in Monthly Weather Review led by Clark Evans (now at the University of Wisconsin–Milwaukee) found that large amounts of latent heat being released from unusually wet soils appear to have helped boost the storm’s intensity, although Evans is continuing to investigate the role of other factors.
Figure 4. Data from the NEXRAD radar near Oklahoma City shows Tropical Storm Erin as it formed a small eye-like feature during intensification at 1000 GMT on August 19, 2007. Image credit: Clark Evans, Russ Schumacher, and Thomas Galarneau, “Sensitivity in the Overland Reintensification of Tropical Cyclone Erin (2007) to Near-Surface Soil Moisture Characteristics,” Monthly Weather Review, doi:10.1175/2011MWR3593.1, American Meteorological Society, from NOAA/NWS data.
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