Alert archive / Nebraska / Tornado Watches in 2023
Tornado Watch 709
The Storm Prediction Center issued this tornado watch at Oct 12, 2023, 1:12 PM CDT for 10 counties in Kansas; 34 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 12, 2023, 1:12 PM CDT (18:12 UTC)
- Expired
- Oct 12, 2023, 7:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 55 kt
All 44 counties
Decatur County, KS, Graham County, KS, Jewell County, KS, Mitchell County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Sheridan County, KS, Smith County, KS, Adams County, NE, Blaine County, NE, Brown County, NE, Buffalo County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Loup County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Red Willow County, NE, Rock County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, Wheeler County, NE, York County, NE
The radar
The North Platte radar (KLNX), 111 km from the middle of the area, began a volume at 18:12 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 50%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 2:18 PM CDT | Tornado Warning | GID | Buffalo, Dawson, Phelps | 27 min |
| Oct 12, 2:52 PM CDT | Tornado Warning | GID | Harlan, Phelps | 23 min |
| Oct 12, 2:57 PM CDT | Flash Flood Warning | LBF | Blaine, Custer, Loup | 9 hr |
| Oct 12, 3:40 PM CDT | Severe Thunderstorm Warning | GID | Buffalo, Kearney, Phelps | 35 min |
| Oct 12, 3:44 PM CDT | Tornado Warning | GID | Franklin, Kearney | 31 min |
| Oct 12, 4:06 PM CDT | Tornado Warning | GID | Adams, Franklin, Kearney, Webster | 24 min |
| Oct 12, 4:47 PM CDT | Tornado Warning | GID | Adams, Hall | 13 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.2 hours before the alert went out and 87 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
- 689 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 12:29 PM CDT | Mesoscale Discussion | SPC | Graham, Jewell, Norton, Osborne, Phillips, Rooks and 1 more | 2 hr |
| Oct 12, 3:44 PM CDT | Mesoscale Discussion | SPC | Republic | 61 min |
| Oct 12, 5:11 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Dickinson, Geary, Jewell, Lincoln and 7 more | 2 hr |
| Oct 11, 8:50 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boone, Boyd, Brown, Burt and 28 more | 2 hr |
Nearby
Tornado Watches in Nebraska, 2023Tornado Watches in Kansas, 2023Every tornado watch in 2023
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.