Alert archive / Nebraska / Heat Advisories in 2012
Heat Advisory 2, NWS Omaha, NE
NWS Omaha, NE issued this heat advisory at Jun 28, 2012, 2:59 PM CDT for 16 counties in Nebraska; Harrison County, Pottawattamie County, Iowa. It took effect at Jun 29, 2012, 1:00 PM CDT. It was in force for 83 min.
The area
The counties it named.
The facts
- Issued
- Jun 28, 2012, 2:59 PM CDT (19:59 UTC)
- In effect from
- Jun 29, 2012, 1:00 PM CDT
- Expired
- Jun 29, 2012, 2:23 PM CDT
- In force
- 83 min
- Issued by
- NWS Omaha, NE
Counties Harrison County, IA, Pottawattamie County, IA, Antelope County, NE, Boone County, NE, Burt County, NE, Butler County, NE, Colfax County, NE, Cuming County, NE, Dodge County, NE, Douglas County, NE, Knox County, NE, Madison County, NE, Pierce County, NE, Platte County, NE, Sarpy County, NE, Saunders County, NE, Stanton County, NE, Washington County, NE
The radar
The Omaha radar (KOAX), 62 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 314 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.
- 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
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 Omaha, NE wrote its last area forecast discussion before this heat advisory went out at Jun 27, 3:08 PM CDT, 23 hours 51 minutes earlier.
Area forecast discussion, Jun 27, 3:08 PM CDT, 23 hours 51 minutes before
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</html>Hazardous weather outlook, Jun 27, 5:18 PM CDT, 21 hours 41 minutes before
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</html>Nearby
Heat Advisories in Nebraska, 2012Heat Advisories in Iowa, 2012Every 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.