Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 165, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 30, 2021, 8:47 PM MDT for Cherry County, Nebraska. It was in force for 43 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 30, 2021, 8:47 PM MDT (02:47 UTC)
- Expired
- Aug 30, 2021, 9:30 PM MDT
- In force
- 43 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cherry County, NE
The radar
The North Platte radar (KLNX), 100 km from the middle of the area, began a volume at 02:46 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 30, 8:50 PM MDT | HAIL 1 | Crookston, NE | DELAYED REPORT. TIME ESTIMATED BY RADAR. |
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, 2.8 hours before the alert went out and 192 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
- 1819 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 2084 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 300 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 18.9
The text
As transmitted.
690
WUUS53 KLBF 310247
SVRLBF
NEC031-310330-
/O.NEW.KLBF.SV.W.0165.210831T0247Z-210831T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
947 PM CDT Mon Aug 30 2021
The National Weather Service in North Platte has issued a
* Severe Thunderstorm Warning for...
Northeastern Cherry County in north central Nebraska...
* Until 1030 PM CDT.
* At 947 PM CDT, a severe thunderstorm was located 8 miles west of
Valentine, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Valentine, Crookston and Highway 97 crossing the Niobrara River.
This includes the following highways...
Highway 20 between mile markers 181 and 210.
Highway 97 between mile markers 131 and 141.
Highway 83 between mile markers 204 and 222.
Highway 12 between mile markers 1 and 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in North Platte.
&&
LAT...LON 4274 10039 4281 10085 4300 10084 4299 10036
TIME...MOT...LOC 0247Z 274DEG 12KT 4290 10071
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NMJ1 follow-up statement
835
WWUS53 KLBF 310308
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
1008 PM CDT Mon Aug 30 2021
NEC031-310330-
/O.CON.KLBF.SV.W.0165.000000T0000Z-210831T0330Z/
Cherry NE-
1008 PM CDT Mon Aug 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR NORTHEASTERN CHERRY COUNTY...
At 1007 PM CDT, a severe thunderstorm was located 10 miles northwest
of Valentine, moving east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Valentine and Crookston.
This includes the following highways...
Highway 20 between mile markers 181 and 202.
Highway 97 between mile markers 137 and 141.
Highway 83 between mile markers 213 and 222.
Highway 12 between mile markers 1 and 9.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
North Platte.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4280 10044 4283 10073 4290 10085 4300 10084
4299 10041
TIME...MOT...LOC 0307Z 261DEG 10KT 4295 10073
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
NMJThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 6:57 PM MDT | Special Weather Statement | LBF | Frontier | 48 min |
| Aug 30, 9:29 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 46 min |
| Aug 30, 9:33 PM MDT | Special Weather Statement | LBF | Keya Paha | 42 min |
| Aug 30, 9:55 PM MDT | Areal Flood Advisory | LBF | Cherry | 54 min |
| Aug 30, 10:11 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 49 min |
| Aug 30, 10:24 PM MDT | Special Weather Statement | LBF | Holt | 51 min |
| Aug 30, 10:55 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Cherry | 50 min |
| Aug 30, 11:42 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Cherry | 48 min |
| Aug 31, 12:20 AM MDT | Special Weather Statement | LBF | Brown | 40 min |
| Aug 31, 12:37 AM MDT | Special Weather Statement | LBF | Boyd | 53 min |
| Aug 31, 12:59 AM MDT | Special Weather Statement | LBF | Keya Paha | 46 min |
| Aug 31, 1:32 AM MDT | Special Weather Statement | LBF | Holt | 43 min |
| Aug 31, 1:43 AM MDT | Special Weather Statement | LBF | Brown, Keya Paha | 47 min |
| Aug 31, 2:15 AM MDT | Special Weather Statement | LBF | Holt | 45 min |
| Aug 31, 2:28 AM MDT | Special Weather Statement | LBF | Boyd, Holt, Rock | 62 min |
| Aug 31, 2:50 AM MDT | Special Weather Statement | LBF | Garfield | 40 min |
| Aug 31, 3:20 AM MDT | Special Weather Statement | LBF | Garfield, Wheeler | 40 min |
| Aug 31, 3:58 AM MDT | Special Weather Statement | LBF | Wheeler | 17 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.