Alert archive / Nebraska / Red Flag Warnings in 2015
Red Flag Warning 11, NWS Omaha, NE
NWS Omaha, NE issued this red flag warning at Oct 11, 2015, 3:54 AM CDT for 6 counties in Nebraska. It took effect at Oct 11, 2015, 12:00 PM CDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 11, 2015, 3:54 AM CDT (08:54 UTC)
- In effect from
- Oct 11, 2015, 12:00 PM CDT
- Expired
- Oct 11, 2015, 6:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Omaha, NE
Counties Antelope County, NE, Boone County, NE, Knox County, NE, Madison County, NE, Pierce County, NE, Platte County, NE
The radar
The Omaha radar (KOAX), 143 km from the middle of the area, began a volume at 08:56 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 00:00Z, 8.9 hours before the alert went out and 255 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3339 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag warning 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 red flag warning went out at Oct 11, 3:19 AM CDT, 35 minutes earlier.
Area forecast discussion, Oct 11, 3:19 AM CDT, 35 minutes before
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</html>Hazardous weather outlook, Oct 10, 8:40 PM CDT, 7 hours 14 minutes before
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</html>Nearby
Red Flag Warnings in Nebraska, 2015Every red flag warning in 2015
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.