Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 170, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Sep 1, 2021, 6:09 PM MDT for Garden County, Sheridan County, Nebraska. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2021, 6:09 PM MDT (00:09 UTC)
- Expired
- Sep 1, 2021, 6:37 PM MDT
- In force
- 28 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Garden County, NE, Sheridan County, NE
The radar
The North Platte radar (KLNX), 167 km from the middle of the area, began a volume at 00:11 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 1, 5:26 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.2 hours before the alert went out and 197 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
- 2001 J/kg
- Mixed-layer CIN
- -199 J/kg
- Mixed-layer LCL
- 1287 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 182 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
The text
As transmitted.
119
WUUS53 KLBF 020009
SVRLBF
NEC069-161-020115-
/O.NEW.KLBF.SV.W.0170.210902T0009Z-210902T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
609 PM MDT Wed Sep 1 2021
The National Weather Service in North Platte has issued a
* Severe Thunderstorm Warning for...
Northwestern Garden County in the Panhandle of Nebraska...
Southwestern Sheridan County in the Panhandle of Nebraska...
* Until 715 PM MDT.
* At 609 PM MDT, a severe thunderstorm was located near Alliance
Airport, or 9 miles south of Alliance, moving northeast at 20 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Ellsworth, Antioch, Snow Lake, Miles Lake, Wickson Lake, Patterson
Lake, Lakeside and Herman Lake.
This includes the following highways...
Highway 250 between mile markers 1 and 16.
Highway 2 between mile markers 96 and 119.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4228 10242 4205 10224 4190 10268 4200 10268
4201 10270 4209 10270 4209 10274 4211 10274
TIME...MOT...LOC 0009Z 240DEG 19KT 4197 10281
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CDC1 follow-up statement
752
WWUS53 KLBF 020037
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
637 PM MDT Wed Sep 1 2021
NEC069-161-020046-
/O.CAN.KLBF.SV.W.0170.000000T0000Z-210902T0115Z/
Garden NE-Sheridan NE-
637 PM MDT Wed Sep 1 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GARDEN AND
SOUTHWESTERN SHERIDAN COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until midnight MDT for
the Panhandle of Nebraska.
LAT...LON 4228 10242 4205 10224 4190 10268 4200 10268
4201 10270 4209 10270 4209 10274 4211 10274
TIME...MOT...LOC 0035Z 240DEG 19KT 4204 10264
$$
CDCThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:38 PM MDT | Special Weather Statement | LBF | Sheridan | 52 min |
| Sep 1, 7:21 PM MDT | Special Weather Statement | LBF | Sheridan | 54 min |
| Sep 1, 7:48 PM MDT | Special Weather Statement | LBF | Hayes | 42 min |
| Sep 1, 8:30 PM MDT | Special Weather Statement | LBF | Sheridan | 45 min |
| Sep 1, 9:08 PM MDT | Special Weather Statement | LBF | Garden | 52 min |
| Sep 1, 9:13 PM MDT | Special Weather Statement | LBF | Sheridan | 47 min |
| Sep 1, 9:27 PM MDT | Special Weather Statement | LBF | Sheridan | 33 min |
| Sep 1, 9:42 PM MDT | Special Weather Statement | LBF | Arthur | 18 min |
| Sep 1, 9:46 PM MDT | Areal Flood Advisory | LBF | Cherry, Garden, Sheridan | 3 hr |
| Sep 1, 9:55 PM MDT | Special Weather Statement | LBF | Sheridan | 65 min |
| Sep 1, 9:59 PM MDT | Special Weather Statement | LBF | Arthur, Grant | 61 min |
| Sep 1, 10:30 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 45 min |
| Sep 1, 10:42 PM MDT | Special Weather Statement | LBF | Arthur | 18 min |
| Sep 1, 11:08 PM MDT | Areal Flood Advisory | LBF | Arthur, Deuel, Garden, Keith, Perkins | 3 hr |
| Sep 1, 11:45 PM MDT | Special Weather Statement | LBF | Arthur | 45 min |
| Sep 1, 11:59 PM MDT | Special Weather Statement | LBF | Logan | 46 min |
| Sep 2, 3:58 PM MDT | Special Weather Statement | LBF | Valley | 32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.