Alert archive / Nebraska / Heat Advisories in 2012

Heat Advisory 6, NWS Hastings, NE

June 28, 201214 counties in Nebraska

NWS Hastings, NE issued this heat advisory at Jun 28, 2012, 3:41 PM CDT for 14 counties in Nebraska. It took effect at Jun 29, 2012, 12:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jun 28, 2012, 3:41 PM CDT (20:41 UTC)
In effect from: Jun 29, 2012, 12:00 PM CDT
Expired: Jun 29, 2012, 6:57 PM CDT
In force: 7 hr
Issued by: NWS Hastings, NE

Counties Buffalo County, NE, Dawson County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Howard County, NE, Merrick County, NE, Nance County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Valley County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 83 km from the middle of the area, began a volume at 20:38 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, 8.7 hours before the alert went out and 165 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: 502 J/kg
Mixed-layer CIN: -455 J/kg
Mixed-layer LCL: 1882 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 116 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 Hastings, NE wrote its last area forecast discussion before this heat advisory went out at Jun 27, 4:11 PM CDT, 23 hours 30 minutes earlier.

Area forecast discussion, Jun 27, 4:11 PM CDT, 23 hours 30 minutes before

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Nearby

Heat Advisories in Nebraska, 2012 Every heat advisory in 2012

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.