Alert archive / Nebraska / Heat Advisories in 2021

Heat Advisory 1, NWS Hastings, NE

June 16, 202124 counties in Nebraska; 6 counties in Kansas

NWS Hastings, NE issued this heat advisory at Jun 16, 2021, 3:17 PM CDT for 24 counties in Nebraska; 6 counties in Kansas. It took effect at Jun 17, 2021, 12:00 PM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jun 16, 2021, 3:17 PM CDT (20:17 UTC)
In effect from: Jun 17, 2021, 12:00 PM CDT
Expired: Jun 17, 2021, 8:00 PM CDT
In force: 8 hr
Issued by: NWS Hastings, NE

All 30 counties

Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 27 km from the middle of the area, began a volume at 20:19 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.3 hours before the alert went out and 179 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: 506 J/kg
Mixed-layer CIN: -626 J/kg
Mixed-layer LCL: 2434 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Hastings, NE wrote its last area forecast discussion before this heat advisory went out at Jun 16, 12:38 PM CDT, 2 hours 39 minutes earlier.

Area forecast discussion, Jun 16, 12:38 PM CDT, 2 hours 39 minutes before

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Hazardous weather outlook, Jun 16, 6:04 AM CDT, 9 hours 13 minutes before

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The office that day

Everything else NWS Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 7:01 PM CDT	Special Weather Statement	GID	Hall	29 min
Jun 15, 7:28 PM CDT	Severe Thunderstorm Warning	GID	Buffalo, Hall	32 min
Jun 15, 8:02 PM CDT	Special Weather Statement	GID	Clay	28 min
Jun 15, 8:13 PM CDT	Severe Thunderstorm Warning	GID	Clay, Nuckolls	32 min
Jun 15, 8:55 PM CDT	Special Weather Statement	GID	Thayer	20 min

Nearby

Heat Advisories in Nebraska, 2021 Heat Advisories in Kansas, 2021 Every heat advisory in 2021

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.