Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 174, NWS North Platte, NE

September 5, 2021Holt County, Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 5, 2021, 7:36 AM CDT for Holt County, Nebraska. It was in force for 39 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: Sep 5, 2021, 7:36 AM CDT (12:36 UTC)
Expired: Sep 5, 2021, 8:15 AM CDT
In force: 39 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.75 in
Wind: 50.0 mph

County Holt County, NE

The radar

The Sioux Falls radar (KFSD), 185 km from the middle of the area, began a volume at 12:36 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
Sep 5, 7:45 AM CDT	HAIL 1.75	10 Nne Oneill, NE	HAIL OF AT LEAST GOLF BALL SIZE. CROP AND TREE DAMAGE. TIME ESTIMATED FROM RADAR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 0.6 hours before the alert went out and 216 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: 36 J/kg
Mixed-layer CIN: -134 J/kg
Mixed-layer LCL: 1319 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

444 
WUUS53 KLBF 051236
SVRLBF
NEC089-051315-
/O.NEW.KLBF.SV.W.0174.210905T1236Z-210905T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
736 AM CDT Sun Sep 5 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  East central Holt County in north central Nebraska...

* Until 815 AM CDT.

* At 736 AM CDT, a severe thunderstorm was located 10 miles northeast
  of O'Neill, moving southeast at 35 mph.

  HAZARD...Golf 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...
  Page and Opportunity. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4234 9843 4263 9866 4268 9855 4255 9830
      4243 9830
TIME...MOT...LOC 1236Z 318DEG 31KT 4258 9853 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

Roberg

3 follow-up statements

307 
WWUS53 KLBF 051244
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
744 AM CDT Sun Sep 5 2021

NEC089-051315-
/O.CON.KLBF.SV.W.0174.000000T0000Z-210905T1315Z/
Holt NE-
744 AM CDT Sun Sep 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM CDT
FOR EAST CENTRAL HOLT COUNTY...

At 744 AM CDT, a severe thunderstorm was located 10 miles northeast
of O'Neill, moving southeast at 30 mph.

HAZARD...Tennis 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...
Page and Opportunity. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

&&

LAT...LON 4260 9864 4266 9852 4255 9830 4243 9830
      4234 9843
TIME...MOT...LOC 1244Z 316DEG 25KT 4257 9851 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Roberg

799 
WWUS53 KLBF 051303
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
803 AM CDT Sun Sep 5 2021

NEC089-051315-
/O.CON.KLBF.SV.W.0174.000000T0000Z-210905T1315Z/
Holt NE-
803 AM CDT Sun Sep 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM CDT
FOR EAST CENTRAL HOLT COUNTY...

At 802 AM CDT, a severe thunderstorm was located 8 miles north of
Page, or 11 miles east of O'Neill, moving southeast 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...
Page and Opportunity. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4256 9861 4263 9846 4255 9830 4243 9830
      4234 9843
TIME...MOT...LOC 1302Z 310DEG 16KT 4251 9843 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

Roberg

737 
WWUS53 KLBF 051314
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
814 AM CDT Sun Sep 5 2021

NEC089-051324-
/O.EXP.KLBF.SV.W.0174.000000T0000Z-210905T1315Z/
Holt NE-
814 AM CDT Sun Sep 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HOLT COUNTY WILL
EXPIRE AT 815 AM CDT...
                
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 will be allowed to expire.  However small hail
and 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 4256 9861 4263 9846 4255 9830 4243 9830
      4234 9843
TIME...MOT...LOC 1314Z 318DEG 31KT 4245 9835 

$$

Roberg

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 4, 9:35 PM CDT	Special Weather Statement	LBF	Custer	40 min
Sep 5, 1:10 AM CDT	Special Weather Statement	LBF	Loup	50 min
Sep 5, 1:52 AM CDT	Special Weather Statement	LBF	Garfield	38 min
Sep 5, 2:26 AM CDT	Special Weather Statement	LBF	Keith	49 min
Sep 5, 2:39 AM CDT	Special Weather Statement	LBF	Garfield	51 min
Sep 5, 3:13 AM CDT	Special Weather Statement	LBF	Keith	47 min
Sep 5, 3:26 AM CDT	Special Weather Statement	LBF	Arthur	49 min
Sep 5, 3:38 AM CDT	Severe Thunderstorm Warning	LBF	Arthur, Keith	37 min
Sep 5, 4:07 AM CDT	Special Weather Statement	LBF	Keith	38 min
Sep 5, 4:18 AM CDT	Severe Thunderstorm Warning	LBF	Arthur	42 min
Sep 5, 4:22 AM CDT	Special Weather Statement	LBF	Keith	38 min
Sep 5, 4:56 AM CDT	Special Weather Statement	LBF	Lincoln	49 min
Sep 5, 5:01 AM CDT	Special Weather Statement	LBF	Arthur	44 min
Sep 5, 5:37 AM CDT	Special Weather Statement	LBF	Lincoln	38 min
Sep 5, 6:25 AM CDT	Special Weather Statement	LBF	Frontier	50 min
Sep 5, 7:00 AM CDT	Special Weather Statement	LBF	Frontier	45 min
Sep 5, 7:33 AM CDT	Special Weather Statement	LBF	Holt	42 min
Sep 5, 8:14 AM CDT	Special Weather Statement	LBF	Blaine	46 min
Sep 5, 8:16 AM CDT	Special Weather Statement	LBF	Holt	44 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.