Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 175, NWS North Platte, NE

September 11, 20215 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 11, 2021, 11:43 PM CDT for 5 counties in Nebraska. It was in force for 62 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 11, 2021, 11:43 PM CDT (04:43 UTC)
Expired: Sep 12, 2021, 12:45 AM CDT
In force: 62 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Blaine County, NE, Custer County, NE, Logan County, NE, McPherson County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 17 km from the middle of the area, began a volume at 04:44 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 00:00Z, 4.7 hours before the alert went out and 81 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1607 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 2830 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

796 
WUUS53 KLBF 120443
SVRLBF
NEC009-041-113-117-171-120545-
/O.NEW.KLBF.SV.W.0175.210912T0443Z-210912T0545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
1143 PM CDT Sat Sep 11 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Northern Logan County in west central Nebraska...
  Northeastern McPherson County in west central Nebraska...
  Northwestern Custer County in central Nebraska...
  Western Blaine County in north central Nebraska...
  Southern Thomas County in north central Nebraska...

* Until 1245 AM CDT.

* At 1143 PM CDT, a severe thunderstorm was located 17 miles
  northeast of Tryon, moving east at 40 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Dunning, Halsey, Highway 83 crossing The Dismal River and Linscott.

This includes the following highways...
 Highway 2 between mile markers 218 and 250.
 Highway 83 between mile markers 125 and 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4205 10009 4170 9996 4164 10080 4179 10084
      4184 10084
TIME...MOT...LOC 0443Z 256DEG 33KT 4176 10075 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Buttler

3 follow-up statements

675 
WWUS53 KLBF 120502
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1202 AM CDT Sun Sep 12 2021

NEC117-120511-
/O.CAN.KLBF.SV.W.0175.000000T0000Z-210912T0545Z/
McPherson NE-
1202 AM CDT Sun Sep 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MCPHERSON COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4205 10009 4170 9996 4167 10028 4165 10071
      4179 10073 4186 10077
TIME...MOT...LOC 0501Z 256DEG 33KT 4180 10052 

$$

NEC009-041-113-171-120545-
/O.CON.KLBF.SV.W.0175.000000T0000Z-210912T0545Z/
Logan NE-Custer NE-Blaine NE-Thomas NE-
1202 AM CDT Sun Sep 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR NORTHERN LOGAN...NORTHWESTERN CUSTER...WESTERN BLAINE AND
SOUTHERN THOMAS COUNTIES...

At 1201 AM CDT, a severe thunderstorm was located 12 miles south of
Thedford, moving east at 40 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...
Dunning, Halsey, Highway 83 crossing The Dismal River and Linscott. 

This includes the following highways...
 Highway 2 between mile markers 218 and 250.
 Highway 83 between mile markers 125 and 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4205 10009 4170 9996 4167 10028 4165 10071
      4179 10073 4186 10077
TIME...MOT...LOC 0501Z 256DEG 33KT 4180 10052 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Buttler

145 
WWUS53 KLBF 120518
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1218 AM CDT Sun Sep 12 2021

NEC009-041-113-171-120545-
/O.CON.KLBF.SV.W.0175.000000T0000Z-210912T0545Z/
Logan NE-Custer NE-Blaine NE-Thomas NE-
1218 AM CDT Sun Sep 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR NORTHEASTERN LOGAN...NORTHWESTERN CUSTER...WESTERN BLAINE AND
SOUTHEASTERN THOMAS COUNTIES...

At 1218 AM CDT, a severe thunderstorm was located near Halsey, or 11
miles east of Thedford, moving east at 40 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...
Dunning, Halsey, Highway 83 crossing The Dismal River and Linscott. 

This includes the following highways...
 Highway 2 between mile markers 219 and 250.
 Highway 83 between mile markers 126 and 143.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4205 10009 4170 9996 4167 10028 4166 10061
      4180 10062 4189 10065
TIME...MOT...LOC 0518Z 251DEG 37KT 4192 10036 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Buttler

957 
WWUS53 KLBF 120535
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
1235 AM CDT Sun Sep 12 2021

NEC009-041-113-171-120545-
/O.EXP.KLBF.SV.W.0175.000000T0000Z-210912T0545Z/
Logan NE-Custer NE-Blaine NE-Thomas NE-
1235 AM CDT Sun Sep 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LOGAN...
NORTHWESTERN CUSTER...WESTERN BLAINE AND SOUTHEASTERN THOMAS COUNTIES
WILL EXPIRE AT 1245 AM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
North Platte.

LAT...LON 4205 10009 4170 9996 4167 10028 4166 10061
      4180 10062 4189 10065
TIME...MOT...LOC 0535Z 256DEG 33KT 4196 10017 

$$

Buttler

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 11, 7:07 PM CDT	Special Weather Statement	LBF	Sheridan	38 min
Sep 11, 7:53 PM CDT	Special Weather Statement	LBF	Cherry	52 min
Sep 11, 8:39 PM CDT	Special Weather Statement	LBF	Deuel	51 min
Sep 11, 8:55 PM CDT	Special Weather Statement	LBF	Deuel, Garden	50 min
Sep 11, 9:18 PM CDT	Special Weather Statement	LBF	Cherry	42 min
Sep 11, 9:45 PM CDT	Special Weather Statement	LBF	Garden, Keith	45 min
Sep 11, 10:11 PM CDT	Special Weather Statement	LBF	Arthur, Keith	49 min
Sep 11, 10:37 PM CDT	Special Weather Statement	LBF	Lincoln, McPherson	38 min
Sep 11, 11:06 PM CDT	Special Weather Statement	LBF	Hooker, Logan, McPherson, Thomas	39 min
Sep 11, 11:19 PM CDT	Special Weather Statement	LBF	Cherry, Grant	41 min
Sep 11, 11:59 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	61 min
Sep 12, 1:00 AM CDT	Special Weather Statement	LBF	Garfield, Holt, Rock, Wheeler	45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021 Every 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.