Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 114, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 14, 2021, 5:18 AM MDT for Keith County, Nebraska. It was in force for 42 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 14, 2021, 5:18 AM MDT (11:18 UTC)
- Expired
- Aug 14, 2021, 6:00 AM MDT
- In force
- 42 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 50.0 mph
County Keith County, NE
The radar
The North Platte radar (KLNX), 108 km from the middle of the area, began a volume at 11:20 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 14, 5:58 AM MDT | HAIL 0.75 | 2 N Ogallala, NE | REPORT VIA MPING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 11.3 hours before the alert went out and 80 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
- 446 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 1681 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
118
WUUS53 KLBF 141118
SVRLBF
NEC101-141200-
/O.NEW.KLBF.SV.W.0114.210814T1118Z-210814T1200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
518 AM MDT Sat Aug 14 2021
The National Weather Service in North Platte has issued a
* Severe Thunderstorm Warning for...
Northeastern Keith County in southwestern Nebraska...
* Until 600 AM MDT.
* At 518 AM MDT, a severe thunderstorm was located near Kingsley Dam,
or 8 miles north of Ogallala, moving east at 20 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* Locations impacted include...
Keystone, Kingsley Dam, Big Bald Hill, Nevens and Broganville.
This includes the following highways...
Highway 61 between mile markers 89 and 104.
Highway 92 between mile markers 135 and 138.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4140 10148 4139 10138 4116 10133 4116 10174
4130 10178
TIME...MOT...LOC 1118Z 259DEG 15KT 4125 10172
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CDC1 follow-up statement
896
WWUS53 KLBF 141139
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
539 AM MDT Sat Aug 14 2021
NEC101-141200-
/O.CON.KLBF.SV.W.0114.000000T0000Z-210814T1200Z/
Keith NE-
539 AM MDT Sat Aug 14 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 AM MDT
FOR NORTHEASTERN KEITH COUNTY...
At 538 AM MDT, a severe thunderstorm was located near Keystone, or 13
miles northeast of Ogallala, moving east at 20 mph.
HAZARD...Two inch hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Broganville, Big Bald Hill and Nevens.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4140 10148 4139 10138 4116 10133 4116 10153
4133 10169
TIME...MOT...LOC 1138Z 253DEG 18KT 4131 10159
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CDCThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 5:09 AM MDT | Special Weather Statement | LBF | Keith | 51 min |
| Aug 14, 5:43 AM MDT | Severe Thunderstorm Warning | LBF | Keith | 47 min |
| Aug 14, 5:51 AM MDT | Severe Thunderstorm Warning | LBF | Keith | 19 min |
| Aug 14, 5:56 AM MDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln, McPherson | 49 min |
| Aug 14, 6:23 AM MDT | Severe Thunderstorm Warning | LBF | Keith, Perkins | 37 min |
| Aug 14, 6:44 AM MDT | Special Weather Statement | LBF | McPherson | 46 min |
| Aug 14, 6:59 AM MDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 46 min |
| Aug 14, 7:35 AM MDT | Special Weather Statement | LBF | Keith | 40 min |
| Aug 14, 7:44 AM MDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Perkins | 31 min |
| Aug 14, 8:14 AM MDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Lincoln, Perkins | 46 min |
| Aug 14, 8:33 AM MDT | Special Weather Statement | LBF | Perkins | 42 min |
| Aug 14, 8:49 AM MDT | Severe Thunderstorm Warning | LBF | Keith, Perkins | 41 min |
| Aug 14, 8:59 AM MDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Perkins | 26 min |
| Aug 14, 9:28 AM MDT | Severe Thunderstorm Warning | LBF | Perkins | 47 min |
| Aug 14, 10:02 AM MDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Lincoln, Perkins | 43 min |
| Aug 14, 10:44 AM MDT | Special Weather Statement | LBF | Hayes | 46 min |
| Aug 14, 11:39 AM MDT | Special Weather Statement | LBF | Lincoln | 51 min |
| Aug 14, 12:29 PM MDT | Special Weather Statement | LBF | Lincoln | 46 min |
| Aug 14, 4:16 PM MDT | Special Weather Statement | LBF | Dawes | 59 min |
| Aug 14, 4:21 PM MDT | Special Weather Statement | LBF | Sheridan | 39 min |
| Aug 14, 4:26 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 49 min |
| Aug 14, 4:28 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 47 min |
| Aug 14, 4:56 PM MDT | Special Weather Statement | LBF | Sheridan | 49 min |
| Aug 14, 5:01 PM MDT | Special Weather Statement | LBF | Sheridan | 44 min |
| Aug 14, 5:06 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 39 min |
| Aug 14, 5:44 PM MDT | Special Weather Statement | LBF | Sheridan | 46 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.