The viewing area's average high temperatures was the highest of 2019 today. Multiple locations saw their highest temperature so far. Heat indices peaked at 100 to 112.
We hit 95.3 here at WLFI. Heat index peaked at 107.
It appears that the highest actual temperatures occurred over the driest soils in Tippecanoe County with 95-97. In areas that have seen more rainfall & have green grass & damper soils, highs were 92-94.
However, the dew points were a bit higher in the wetter areas, given the greener grass, lusher vegetation.
Our 95.3 here occurred where we have only seen 0.24" rainfall in 16 days & the grass is going dormant.
At the airport, with 94, they received 0.09" rainfall this morning 0.02" this late afternoon & 1.26" from a heavy storm late last week.
GREATER LAFAYETTE AREA HIGHS FROM PROPERLY-SITED TEMPERATURE SENSORS:
97 Blackthorn (Northwest of Klondike)
96 600 West/26 (Southwest of West Lafayette)
96 3 Miles Northwest of the Purdue Airport
96 Huntington Farms
95 South 9th & Dover Lane
95 West Point
95 Kampen Golf Course (West Lafayette)
94 Purdue Airport
94 Miami Elementary (Lafayette)
94 Underwood & North 22nd (Lafayette)
94 Round Grove
94 Veteran's Memorial/US 52
93 3 Miles Southeast of Brookston
93 1 Mile Southeast of I-65/25
Two wet microbursts appear to have occurred this evening, one near Kempton & the other near Kirklin.
Tree damage has been reported near & south of Kirklin. No reports from near Kempton yet, but obvious microburst on radar.
2-5" of rainfall fell in 2-3 hours in a band over Clinton County, resulting in flash flooding. Water was "a few feet deep" on multiple roads with ditches full or overflowing. Many fields were ponded or flooded as well.
Kempton wet microburst:
Core developing in the storm.............
There go the rings & classic donut shape after the winds surge out.
Kirklin wet microburst:
There is gusted out like a belch, leaving half donut ring with rolls south of Kirklin.
Cumulus will build tomorrow after clearing & some patchy fog tonight (mainly in areas that received rainfall this evening).
Isolated showers/t'showers are possible as secondary cold front & lake breeze front pass.
It will still be a humid day with highs 79-85 with heat indices 81-91 from north to south, but skies should clear & humidity take a nosedive tomorrow evening.
Winds will be northwesterly for the day at 8-14 mph before turning to the due north in the evening at 15-25 mph. It will feel much better then!
Tomorrow night looks great with mostly clear to clear skies & lows 54-58 with some patchy fog.
Friday looks great, too! With mostly sunny to sunny skies, highs should run 82-87 with low humidity (dew points 50s).
After a light north to north-northeast breeze Friday, the wind should go calm & then to the south in the evening.
Lows will run 59-65 Friday night.
Warm front will surge northward Saturday, bathing us in sunshine with some clouds & dew points rising from 56-62 in the morning to 65-70 later in the day.
With highs reaching 87-94, it will feel like 90-99 by late afternoon.
A few storms are possible Saturday night on the periphery of the heat, followed by dry weather & 91-97 Monday-Tuesday with lows in the 68-75 range.
Remnants of the low-end hurricane or high-end tropical storm that makes landfall in Louisiana should move into southern Missouri early next week.
It will slowly move northeastward & combine with a cold front, producing a round of locally-heavy showers & storms Wednesday &/or Thursday for the area after a few isolated storms Tuesday.
Highs Wednesday will run 87-92, followed by 86-90 Thursday with high humidity.
Localized +2" amounts of rainfall are possible, but rainfall will vary over the area.
Cold front & upper trough will push it through pretty quickly.
Surface high will bring nice weather after that front with lower humidity & highs 77-83 & lows 54-58.
Intense heat of 93-98 (heat index 100-113) looks to settle in after that with big upper ridge, high humidity & the "Ring of Fire" north of the area.
Hot upper ridge should shift west as we move into August. Troughiness should develop more in the east.
With this shift, it is likely that we will have a round of storms.
Below normal temperatures with 70s to 80 still seem likely in early August.
It still looks like the hot ridge may re-establish itself in late August with heat, though it may not be as intense as the July heat. We will monitor.
The shift from ridge to some troughiness shows up in the projected upper level winds & geopotential heights:
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