Alert archive / Nebraska / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 21, NWS Omaha, NE

May 22, 2020Richardson County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at May 22, 2020, 8:09 PM CDT for Richardson County, Nebraska. It was in force for 36 min. 2 reports 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: May 22, 2020, 8:09 PM CDT (01:09 UTC)
Expired: May 22, 2020, 8:45 PM CDT
In force: 36 min
Issued by: NWS Omaha, NE
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Richardson County, NE

The radar

The Topeka radar (KTWX), 140 km from the middle of the area, began a volume at 01:11 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.

What was reported inside it

Time	Report	Where	Remark
May 22, 8:27 PM CDT	HAIL 1	1 S Falls City, NE	PEA SIZED HAIL WITH A FEW UP TO QUARTER SIZED.
May 22, 8:33 PM CDT	HAIL 1	Rulo, NE

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

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.2 hours before the alert went out and 123 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: 1043 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1295 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

292 
WUUS53 KOAX 230109
SVROAX
NEC147-230145-
/O.NEW.KOAX.SV.W.0021.200523T0109Z-200523T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Omaha/Valley Nebraska
809 PM CDT Fri May 22 2020

The National Weather Service in Omaha has issued a

* Severe Thunderstorm Warning for...
  Eastern Richardson County in southeastern Nebraska...

* Until 845 PM CDT.

* At 807 PM CDT, a severe thunderstorm was located over Morrill, or 5
  miles northeast of Sabetha, moving northeast at 30 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Falls City, Rulo and Preston. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4024 9547 4018 9548 4016 9543 4013 9543
      4012 9540 4007 9540 4006 9542 4003 9540
      4003 9536 4001 9531 3999 9532 4000 9578
TIME...MOT...LOC 0107Z 234DEG 27KT 3995 9571 

HAIL...1.00IN
WIND...<50MPH
 
$$

Albright

2 follow-up statements

756 
WWUS53 KOAX 230134
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
834 PM CDT Fri May 22 2020

NEC147-230145-
/O.CON.KOAX.SV.W.0021.000000T0000Z-200523T0145Z/
Richardson NE-
834 PM CDT Fri May 22 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHEASTERN RICHARDSON COUNTY...

At 833 PM CDT, a severe thunderstorm was located 5 miles northeast of
Reserve, or 6 miles east of Falls City, moving east at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Falls City, Rulo and Preston. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4004 9563 4018 9547 4016 9543 4013 9543
      4012 9540 4007 9540 4006 9542 4003 9540
      4003 9536 4001 9531 3999 9532 4000 9558
TIME...MOT...LOC 0133Z 248DEG 29KT 4004 9549 

HAIL...1.00IN
WIND...<50MPH
 
$$

Albright

270 
WWUS53 KOAX 230143
SVSOAX

Severe Weather Statement
National Weather Service Omaha/Valley Nebraska
843 PM CDT Fri May 22 2020

NEC147-230152-
/O.EXP.KOAX.SV.W.0021.000000T0000Z-200523T0145Z/
Richardson NE-
843 PM CDT Fri May 22 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RICHARDSON COUNTY
WILL EXPIRE AT 845 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 4004 9563 4018 9547 4016 9543 4013 9543
      4012 9540 4007 9540 4006 9542 4003 9540
      4003 9536 4001 9531 3999 9532 4000 9558
TIME...MOT...LOC 0142Z 234DEG 27KT 4007 9544 

$$

Albright

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 7:14 PM CDT	Special Weather Statement	OAX	Johnson	31 min
May 22, 7:28 PM CDT	Areal Flood Advisory	OAX	Lancaster	5 hr
May 22, 7:33 PM CDT	Special Weather Statement	OAX	Richardson	27 min
May 22, 7:55 PM CDT	Flash Flood Warning	OAX	Lancaster	5 hr
May 22, 8:40 PM CDT	Areal Flood Advisory	OAX	Johnson	3 hr
May 22, 11:54 PM CDT	Areal Flood Advisory	OAX	Johnson, Nemaha, Pawnee	9 hr
May 23, 12:00 AM CDT	Areal Flood Advisory	OAX	Gage, Lancaster	9 hr
May 23, 2:09 AM CDT	River Flood Warning	OAX	Lancaster	6 hr
May 23, 8:26 AM CDT	River Flood Warning	OAX	Saline	4 hr
May 23, 9:11 AM CDT	Areal Flood Advisory	OAX	Saline	7 hr

Nearby

Severe Thunderstorm Warnings in Nebraska, 2020 Every severe thunderstorm warning in 2020

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.