No severe reports received here, but other areas are getting the severe weather tonight with warnings east, near & southwest of Indianapolis.
Here is a rotation signature in eastern Indiana:
Broad rotation & gusts near 70 mph southwest of Indianapolis:
Two bow apexes with gusts near 70 mph in southern Indiana around Bloomfield & 60 mph around Plainville:
Storms have exited. there is lingering rain/isolated t’storms left south of U.S.24, but the torrential storms are now running from Muncie to Indianapolis to near Terre Haute.
Intense storms are running through the Indianapolis area.
They are gusty & putting out +3″ per hour rainfall rates.
Check out the tornadic signature 40 miles southwest of Terre Haute:
Boone County Tornado Warning has been cancelled.
Bow is weakening as it moves into western Warren/Fountain counties, however line is still attached southwest of Danville & moving east/northeastward.
All this said, torrential rains & strong to severe, sporadic gusty winds are likely as this moves in.
The line has seemed to break into two pieces for Attica & Lafayette area.
Tornado Warning for Boone County until 7:15 p.m.
Low-level circulation is located 5 miles southeast of New Ross.
Dual Pol does not show any sort of debri signature & rotation has not tightened really well yet, but it could very quickly, given the strong low-level winds & low LCLs.
Strong storms with gusts of 45-55 mph are moving through southeast Miami & northeastern Howard counties. Notice Severe T’Storm Warning for Huntington County to our northeast.
Tightly-wound, well-organized low-level circulation clearly evident in Huntington County, Tornado Warning likely soon for that county, northeast of our viewing area.
Storm near Peru is putting out quite a bit of cloud-to-ground lightning. It may have a gust of 40-50 mph with torrential rainfall.
Torrential rainfall is also moving through the southeastern half of Carroll County & into southern Montgomery County.
Band/line of storms is moving northeastward from Illinois. Training torrential rainfall & sporadic severe threat will continue.
Rotation signature noted near Earl Park with characterisitc dog leg/LEWP shape.
Little LEWPs appear to be forming in the line over Illinois. These are little s-shapes of higher potential of severe gusts/brief tornado.
Broad zone of tropical, saturated air lifted over area is creating corridor of torrential rainfall & isolated t’storms from Crawfordsville, through Lafayette to Logansport & Peru.
Rainfall total for the day at the station stands at 1.35″. Over 2″ has fallen in rainfall-saturated White County.
New showers/storms are forming right over the area. Some of the strong wind fields in lower levels are being pushed to the surface. We just had a downpour with a gust to 39 mph from the south.
Squall line continues to move through Illinois & organize. Wind cores of 50-60 mph likely developing in it.
Issue is lack of sun, but dynamics are strong & airmass is moist & tropical. Low LCLs & strong low-level wind fields will keep isolated EFo-EF1 going.
Torrential rainfall may train over the area this evening. Watch out for flash flooding.
SPC has put out Severe T’Storm Watch for White, Newton, Jasper, Pulaski, Fulton, Benton & Cass until 9 p.m. & a Tornado Watch for Tippecanoe, Montgomery, Fountain, Warren, Boone, Clinton, Carroll, Howard, Miami, Tipton until 9 p.m. for Illinois squall line.
We are beginning to get a break from all of the heavy rainfall/storms in the area this morning-afternoon & the developing line to our west & northwest.
Squall line continues to develop in Illinois. Notice the orientation & how it favors training as it moves northeast & eastward. Flash flooding threat is still quite high this evening with a continued thinking of 1.50-3.00″ of rainfall area-wide with isolated +3.00″ amounts TOTAL from this morning to tonight.
There isn’t much happening with the Tornado Watch in our east, but more is beginning to happen in Illinois. A lot of cloud-to-ground lightning is appearing & some good wind cores are showing up in the line. The strongest core is north of Springfield (+50 mph).
Sun is still a limiting factor, but there is just a few small holes that are pushing surface CAPE to 1500 J/kg there. Also, it is a very moist, tropical airmass with good dynamics/unidirectional shear. Though the shear is more one main direction at all levels, any LEWP in the line could produce an isolated, brief EF0-EF1 tornado or two.
The winds are gusty in general with recently gusts to 40 mph in parts of the area.
SPC considering secondary Tornado Watch. This would be in Illinois & for a good chunk of the viewing area as line begins to develop in Illinois.
Wind fields in the lower atmosphere continue to be strong & favorable for sporadic severe gusts & an isolated, brief EFo-EF1 tornado or two.
Shear is still largely unidirectional, but even in a linear system (squall line) in this environment, LEWPs often form in the line & can produce the wind/isolated tornadoes.
Low LCLs & tropical airmass continues to support heavy rainfall & that sporadic severe potential.
If there was less rain & more sun & heating, wow this would be an outbreak given the parameters & humid, tropical airmass.
Warnings for Howard & Tipton…………….Gust 65-70 mph possible. There is a rotation signature taking shape near Atlanta & this is also where the strongest wind core is located.
Cloud-to-ground lightning is now appearing in central Illinois cells as they strengthen. Meanwhile, CAPE/shear is enough for squall line to take shape in our eastern counties. There is very little thunder or lightning, however in this line at the moment in our east.
Overall, unidirectional shear/good dynamics all support a line LEWPS (S-shaped appendages in the line) in our east & line in Illinois.
Tornado Watch is in effect for our eastern areas, but I cannot rule out a secondary watch being issued in Illinois & perhaps part of our western areas. This is all conditional & it is all nowcasting form here on out. We shall see how this evolves.
Both lines are orienting strongly NE/SW & training, creating flash flooding issues.