Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 110, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 5, 2021, 5:59 PM CDT for 4 counties in Nebraska. It was in force for 46 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
- Aug 5, 2021, 5:59 PM CDT (22:59 UTC)
- Expired
- Aug 5, 2021, 6:45 PM CDT
- In force
- 46 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
- Damage threat
- Destructive
- Hail
- 1.5 in
- Wind
- 80.0 mph
Counties Blaine County, NE, Brown County, NE, Cherry County, NE, Thomas County, NE
The radar
The North Platte radar (KLNX), 44 km from the middle of the area, began a volume at 23:03 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 12:00Z, 11.0 hours before the alert went out and 113 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
- 630 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 1661 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
169
WUUS53 KLBF 052259
SVRLBF
NEC009-017-031-171-052345-
/O.NEW.KLBF.SV.W.0110.210805T2259Z-210805T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
559 PM CDT Thu Aug 5 2021
The National Weather Service in North Platte has issued a
* Severe Thunderstorm Warning for...
Southeastern Cherry County in north central Nebraska...
Southwestern Brown County in north central Nebraska...
Blaine County in north central Nebraska...
Northeastern Thomas County in north central Nebraska...
* Until 645 PM CDT.
* At 557 PM CDT, severe thunderstorms were located along a line
extending from 18 miles south of Johnstown to 6 miles north of
Elsmere to 14 miles north of Purdum, moving south at 35 mph.
THESE ARE DESTRUCTIVE STORMS FOR ELSMERE AND PURDUM!
HAZARD...80 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
* Locations impacted include...
Brewster, Dunning, Halsey, Elsmere, Purdum, Koshopah, Moon Lake,
Hawley Flats, Willow Lake State Wildlife Management Area and Long
Lake State Wildlife Management Area.
This includes Highway 2 between mile markers 222 and 240.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.
&&
LAT...LON 4186 9969 4179 10000 4178 10035 4236 10046
4235 10025 4242 10003
TIME...MOT...LOC 2257Z 340DEG 28KT 4231 10008 4224 10022 4227 10033
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Sporer2 follow-up statements
182
WWUS53 KLBF 052320
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
620 PM CDT Thu Aug 5 2021
NEC009-017-031-171-052345-
/O.CON.KLBF.SV.W.0110.000000T0000Z-210805T2345Z/
Cherry NE-Brown NE-Blaine NE-Thomas NE-
620 PM CDT Thu Aug 5 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTHEASTERN CHERRY...SOUTHWESTERN BROWN...BLAINE AND
NORTHEASTERN THOMAS COUNTIES...
At 619 PM CDT, severe thunderstorms were located along a line
extending from 16 miles northwest of Brewster to near Elsmere to near
Purdum, moving south at 30 mph.
HAZARD...70 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
Locations impacted include...
Brewster, Dunning, Halsey, Elsmere, Purdum, Koshopah and Hawley
Flats.
This includes Highway 2 between mile markers 222 and 240.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 4186 9969 4179 10000 4178 10035 4224 10044
4218 10029 4219 10018 4225 9994
TIME...MOT...LOC 2319Z 340DEG 28KT 4216 10001 4209 10014 4212 10025
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...${observedHail}
MAX HAIL SIZE...1.50 IN
WIND THREAT...${observedWind}
MAX WIND GUST...70 MPH
$$
Sporer211
WWUS53 KLBF 052336
SVSLBF
Severe Weather Statement
National Weather Service North Platte NE
636 PM CDT Thu Aug 5 2021
NEC031-052346-
/O.CAN.KLBF.SV.W.0110.000000T0000Z-210805T2345Z/
Cherry NE-
636 PM CDT Thu Aug 5 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHERRY COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4186 9969 4179 10000 4178 10027 4209 10029
4206 10012 4218 9990
TIME...MOT...LOC 2336Z 340DEG 28KT 4206 9996 4199 10009 4202 10020
$$
NEC009-017-171-052345-
/O.CON.KLBF.SV.W.0110.000000T0000Z-210805T2345Z/
Brown NE-Blaine NE-Thomas NE-
636 PM CDT Thu Aug 5 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR SOUTH CENTRAL BROWN...BLAINE AND NORTHEASTERN THOMAS COUNTIES...
At 636 PM CDT, severe thunderstorms were located along a line
extending from 10 miles northwest of Brewster to 11 miles northeast
of Halsey to near Purdum, moving south at 30 mph.
HAZARD...70 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
Locations impacted include...
Brewster, Dunning, Halsey, Purdum and Hawley Flats.
This includes Highway 2 between mile markers 227 and 240.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 4186 9969 4179 10000 4178 10027 4209 10029
4206 10012 4218 9990
TIME...MOT...LOC 2336Z 340DEG 28KT 4206 9996 4199 10009 4202 10020
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...${observedHail}
MAX HAIL SIZE...1.50 IN
WIND THREAT...${observedWind}
MAX WIND GUST...70 MPH
$$
SporerThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 3:11 PM CDT | Fire Weather Watch | LBF | Chase, Hayes, Lincoln, Perkins | 12 hr |
| Aug 5, 4:02 PM CDT | Special Weather Statement | LBF | Keya Paha | 28 min |
| Aug 5, 4:11 PM CDT | Special Weather Statement | LBF | Sherman | 49 min |
| Aug 5, 4:23 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha | 52 min |
| Aug 5, 5:13 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha, Rock | 47 min |
| Aug 5, 5:39 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Cherry | 21 min |
| Aug 5, 5:49 PM CDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 41 min |
| Aug 5, 6:34 PM CDT | Special Weather Statement | LBF | Sheridan | 41 min |
| Aug 5, 6:45 PM CDT | Special Weather Statement | LBF | Blaine | 45 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.