Alert archive / Nebraska / Heat Advisories in 2011
Heat Advisory 1, NWS North Platte, NE
NWS North Platte, NE issued this heat advisory at Jun 29, 2011, 3:46 PM CDT for Boyd County, Holt County, Wheeler County, Nebraska. It took effect at Jun 30, 2011, 12:00 PM CDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 29, 2011, 3:46 PM CDT (20:46 UTC)
- In effect from
- Jun 30, 2011, 12:00 PM CDT
- Expired
- Jun 30, 2011, 3:34 PM CDT
- In force
- 4 hr
- Issued by
- NWS North Platte, NE
Counties Boyd County, NE, Holt County, NE, Wheeler County, NE
The radar
The North Platte radar (KLNX), 164 km from the middle of the area, began a volume at 20:48 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, 8.8 hours before the alert went out and 214 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
- 709 J/kg
- Mixed-layer CIN
- -639 J/kg
- Mixed-layer LCL
- 1902 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 North Platte, NE wrote its last area forecast discussion before this heat advisory went out at Jun 29, 3:53 AM CDT, 11 hours 53 minutes earlier.
Area forecast discussion, Jun 29, 3:53 AM CDT, 11 hours 53 minutes before
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</html>The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 4:57 PM CDT | Severe Thunderstorm Warning | LBF | Garden | 48 min |
Nearby
Heat Advisories in Nebraska, 2011Every heat advisory in 2011
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.