Alert archive / Indiana / Heat Advisories in 2016

Heat Advisory 1, NWS Indianapolis, IN

July 20, 201639 counties in Indiana

NWS Indianapolis, IN issued this heat advisory at Jul 20, 2016, 2:53 PM EDT for 39 counties in Indiana. It took effect at Jul 22, 2016, 10:00 AM EDT. It was in force for 58 hr.

The area

The counties it named.

The facts

Issued: Jul 20, 2016, 2:53 PM EDT (18:53 UTC)
In effect from: Jul 22, 2016, 10:00 AM EDT
Expired: Jul 24, 2016, 8:00 PM EDT
In force: 58 hr
Issued by: NWS Indianapolis, IN

All 39 counties

Bartholomew County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 15 km from the middle of the area, began a volume at 18:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.9 hours before the alert went out and 194 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3 J/kg
Mixed-layer CIN: -277 J/kg
Mixed-layer LCL: 1429 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this heat advisory went out at Jul 20, 2:31 PM EDT, 22 minutes earlier.

Area forecast discussion, Jul 20, 2:31 PM EDT, 22 minutes before

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Hazardous weather outlook, Jul 20, 5:36 AM EDT, 9 hours 17 minutes before

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Nearby

Heat Advisories in Indiana, 2016 Every heat advisory in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.