Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 40, NWS Topeka, KS

May 27, 20215 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at May 27, 2021, 2:19 AM CDT for 5 counties in Kansas. It was in force for 41 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: May 27, 2021, 2:19 AM CDT (07:19 UTC)
Expired: May 27, 2021, 3:00 AM CDT
In force: 41 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Clay County, KS, Marshall County, KS, Pottawatomie County, KS, Riley County, KS, Washington County, KS

The radar

The Topeka radar (KTWX), 77 km from the middle of the area, began a volume at 07:18 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 27, 2:22 AM CDT	HAIL 1	5 Ne Morganville, KS

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 27, 1:05 AM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 7.3 hours before the alert went out and 114 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: 328 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 2025 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

181 
WUUS53 KTOP 270719
SVRTOP
KSC027-117-149-161-201-270800-
/O.NEW.KTOP.SV.W.0040.210527T0719Z-210527T0800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
219 AM CDT Thu May 27 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Northwestern Riley County in northeastern Kansas...
  Northwestern Pottawatomie County in northeastern Kansas...
  Southeastern Washington County in north central Kansas...
  Northeastern Clay County in north central Kansas...
  Southwestern Marshall County in northeastern Kansas...

* Until 300 AM CDT.

* At 219 AM CDT, severe thunderstorms were located along a line
  extending from 4 miles south of Barnes to 8 miles north of Green to
  3 miles north of Clay Center, moving east at 45 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Randolph and Olsburg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3967 9643 3953 9643 3935 9654 3944 9725
      3954 9714 3966 9712
TIME...MOT...LOC 0719Z 270DEG 39KT 3965 9691 3954 9695 3943 9711 

HAIL...1.25IN
WIND...60MPH
 
$$

BD

2 follow-up statements

929 
WWUS53 KTOP 270724
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
224 AM CDT Thu May 27 2021

KSC027-117-149-161-201-270800-
/O.CON.KTOP.SV.W.0040.000000T0000Z-210527T0800Z/
Riley-Pottawatomie-Washington-Clay-Marshall-
224 AM CDT Thu May 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR NORTHWESTERN RILEY...NORTHWESTERN POTTAWATOMIE...SOUTHEASTERN
WASHINGTON...NORTHEASTERN CLAY AND SOUTHWESTERN MARSHALL COUNTIES...

At 224 AM CDT, severe thunderstorms were located along a line
extending from 4 miles south of Barnes to 10 miles northwest of
Randolph to near Green, moving east at 45 mph.

HAZARD...Golf 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...
Olsburg, Morganville, Randolph and Green. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3967 9643 3953 9643 3935 9654 3944 9725
      3954 9714 3966 9712
TIME...MOT...LOC 0724Z 270DEG 39KT 3965 9686 3954 9690 3943 9706 

HAIL...1.75IN
WIND...60MPH
 
$$

BD

955 
WWUS53 KTOP 270741
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
241 AM CDT Thu May 27 2021

KSC027-117-149-161-201-270800-
/O.CON.KTOP.SV.W.0040.000000T0000Z-210527T0800Z/
Riley-Pottawatomie-Washington-Clay-Marshall-
241 AM CDT Thu May 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM CDT
FOR NORTHWESTERN RILEY...NORTHWESTERN POTTAWATOMIE...SOUTHEASTERN
WASHINGTON...NORTHEASTERN CLAY AND SOUTHWESTERN MARSHALL COUNTIES...

At 241 AM CDT, severe thunderstorms were located along a line
extending from near Waterville to 7 miles north of Randolph to 3
miles east of Green, moving east at 40 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Olsburg, Randolph and Green. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3967 9643 3953 9643 3935 9654 3944 9703
      3955 9698 3966 9696
TIME...MOT...LOC 0741Z 267DEG 33KT 3966 9673 3955 9677 3944 9693 

HAIL...1.25IN
WIND...60MPH
 
$$

BD

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 7:21 PM CDT	Special Weather Statement	TOP	Dickinson	39 min
May 26, 7:39 PM CDT	Special Weather Statement	TOP	Clay, Ottawa, Riley	66 min
May 27, 12:15 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	30 min
May 27, 12:18 AM CDT	Tornado Warning	TOP	Dickinson, Morris	13 min
May 27, 12:37 AM CDT	Special Weather Statement	TOP	Morris	53 min
May 27, 12:42 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	33 min
May 27, 12:44 AM CDT	Severe Thunderstorm Warning	TOP	Morris	46 min
May 27, 12:52 AM CDT	Areal Flood Advisory	TOP	Dickinson, Morris	4 hr
May 27, 12:58 AM CDT	Severe Thunderstorm Warning	TOP	Geary, Wabaunsee	47 min
May 27, 1:12 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	33 min
May 27, 1:23 AM CDT	Special Weather Statement	TOP	Shawnee, Wabaunsee	67 min
May 27, 1:25 AM CDT	Special Weather Statement	TOP	Lyon	35 min
May 27, 1:37 AM CDT	Severe Thunderstorm Warning	TOP	Republic, Washington	23 min
May 27, 1:41 AM CDT	Severe Thunderstorm Warning	TOP	Clay, Cloud, Republic, Washington	49 min
May 27, 1:42 AM CDT	Special Weather Statement	TOP	Coffey	48 min
May 27, 1:45 AM CDT	Special Weather Statement	TOP	Osage	45 min
May 27, 2:01 AM CDT	Special Weather Statement	TOP	Jackson	59 min
May 27, 2:03 AM CDT	Special Weather Statement	TOP	Douglas, Jefferson	57 min
May 27, 2:08 AM CDT	Special Weather Statement	TOP	Cloud	37 min
May 27, 2:54 AM CDT	Severe Thunderstorm Warning	TOP	Marshall, Pottawatomie, Riley	51 min
May 27, 3:06 AM CDT	Special Weather Statement	TOP	Douglas	54 min
May 27, 3:46 AM CDT	Areal Flood Advisory	TOP	Marshall, Riley, Washington	4 hr
May 27, 4:22 AM CDT	Special Weather Statement	TOP	Morris, Wabaunsee	23 min
May 27, 4:29 AM CDT	Areal Flood Warning	TOP	Dickinson, Morris	6 hr
May 27, 4:43 AM CDT	Special Weather Statement	TOP	Wabaunsee	32 min
May 27, 5:01 AM CDT	Areal Flood Advisory	TOP	Geary, Morris	18 min
May 27, 5:11 AM CDT	Special Weather Statement	TOP	Shawnee	34 min
May 27, 5:18 AM CDT	Flash Flood Warning	TOP	Geary, Morris	4 hr
May 27, 5:31 AM CDT	Severe Thunderstorm Warning	TOP	Douglas, Osage, Shawnee	29 min
May 27, 5:41 AM CDT	Special Weather Statement	TOP	Lyon	34 min
May 27, 5:53 AM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin, Osage	52 min
May 27, 6:14 AM CDT	Flash Flood Warning	TOP	Lyon, Morris, Wabaunsee	3 hr
May 27, 6:23 AM CDT	Special Weather Statement	TOP	Anderson	37 min
May 27, 6:48 AM CDT	Special Weather Statement	TOP	Franklin	27 min
May 27, 8:43 AM CDT	Areal Flood Warning	TOP	Lyon, Morris, Wabaunsee	8 hr
May 27, 8:59 AM CDT	Areal Flood Warning	TOP	Geary, Morris	14 hr
May 27, 10:04 AM CDT	Flash Flood Watch	TOP	Anderson, Coffey, Douglas, Franklin, Lyon, Osage	9 hr
May 27, 10:46 AM CDT	River Flood Warning	TOP	Wabaunsee	8 hr
May 27, 10:46 AM CDT	River Flood Warning	TOP	Shawnee	7 hr
May 27, 10:59 AM CDT	Areal Flood Warning	TOP	Morris	20 hr
May 27, 2:31 PM CDT	River Flood Warning	TOP	Lyon	26 hr
May 27, 2:31 PM CDT	River Flood Warning	TOP	Lyon	32 hr
May 27, 2:54 PM CDT	River Flood Warning	TOP	Lyon, Osage	16 hr

Nearby

Severe Thunderstorm Warnings in Kansas, 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.