September 6, 3:30 PM Short-Term Forecast Update

In a warm, tropical environment today there is a frontal boundary & the remnants of Gordon. Both are popping some showers/storms. Some factors may lead to an isolated funnel or two this afternoon-evening.

Posted: Sep. 6, 2018 3:27 PM
Updated: Sep. 6, 2018 3:54 PM

Flash Flood Watch is now up for the area mainly south of U.S. 24.

...FLASH FLOOD WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY EVENING...

The National Weather Service in Indianapolis has issued a

* Flash Flood Watch for portions of central Indiana, east
central Indiana, north central Indiana, south central Indiana,
southeast Indiana, southwest Indiana, and west central
Indiana, including the following areas, in central Indiana,
Bartholomew, Boone, Clinton, Decatur, Hamilton, Hancock,
Hendricks, Howard, Johnson, Madison, Marion, Morgan, Rush,
Shelby, and Tipton. In east central Indiana, Delaware, Henry,
and Randolph. In north central Indiana, Carroll. In south
central Indiana, Brown, Jackson, Lawrence, and Monroe. In
southeast Indiana, Jennings. In southwest Indiana, Daviess,
Greene, Knox, Martin, and Sullivan. In west central Indiana,
Clay, Fountain, Montgomery, Owen, Parke, Putnam, Tippecanoe,
Vermillion, Vigo, and Warren.

* From Saturday morning through Sunday evening

* Showers are likely on Friday, with widespread showers expected
Saturday into Sunday. The rain could be heavy at times,
especially Saturday into Sunday. The rain on Friday will help
saturate the ground, so that the weekend rain could lead to
flash flooding.

* There remains some uncertainty on exactly where the heaviest
rain will fall. Stay tuned for later updates on this developing
situation.

_____________________________________________________________________________________________________________

Surface & low-level flow is from the northeast, while storms along frontal boundary are moving from southwest to northeast.  Above that, flow courtesy of Gordon is from the southeast.  There is also a low level & surface wind shief along that front from northeast to south & southwest. 

Bottom line is that there is a lot of vorticity & shear in a tropical airmass with temperatures in the 80s & dew points in the 70s.  Cloud bases are low.

This result in the potential of a few isolated funnels to even landspout tornadoes this evening from any showers & storms that pass through.  This could result in a random Tornado Warning seemingly out of no where.

Landspout tornadoes tend to be short-lived with a very width.  They also tend to be weak with EF0 to low-end EF1 strength.

The Non-Supercell Tornado Index is quite elevated from central Illinois to Indiana at the moment & will continue to shift northward.  Also not the elevated numbers near the center & east of the center of Gordon (in Arkansas).

456

Article Comments

West Lafayette
Clear
55° wxIcon
Hi: 58° Lo: 54°
Feels Like: 55°
Kokomo
Clear
53° wxIcon
Hi: 58° Lo: 52°
Feels Like: 53°
Rensselaer
Scattered Clouds
54° wxIcon
Hi: 56° Lo: 52°
Feels Like: 54°
Fowler
Scattered Clouds
54° wxIcon
Hi: 58° Lo: 53°
Feels Like: 54°
Williamsport
Clear
56° wxIcon
Hi: 59° Lo: 54°
Feels Like: 56°
Crawfordsville
Clear
54° wxIcon
Hi: 59° Lo: 54°
Feels Like: 54°
Frankfort
Clear
55° wxIcon
Hi: 58° Lo: 52°
Feels Like: 55°
Delphi
Clear
54° wxIcon
Hi: 58° Lo: 54°
Feels Like: 54°
Monticello
Clear
54° wxIcon
Hi: 58° Lo: 53°
Feels Like: 54°
Logansport
Few Clouds
53° wxIcon
Hi: 57° Lo: 52°
Feels Like: 53°
Showers & some storms very late tonight-early Wednesday morning with isolated severe risk in our southwestern counties.
WLFI Radar
WLFI Temps
WLFI Planner

Community Events