Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 17, NWS Topeka, KS

May 8, 2021Republic County, Washington County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at May 8, 2021, 7:56 PM CDT for Republic County, Washington County, Kansas. It was in force for 49 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 8, 2021, 7:56 PM CDT (00:56 UTC)
Expired: May 8, 2021, 8:45 PM CDT
In force: 49 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Republic County, KS, Washington County, KS

The radar

The Grand Island radar (KUEX), 112 km from the middle of the area, began a volume at 00:59 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 8, 8:20 PM CDT	TSTM WND GST 60	2 Nnw Haddam, KS	NO DAMAGE BUT WIND ESTIMATED TO BE 60 MPH.

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 8, 6:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.9 hours before the alert went out and 169 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1451 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 535 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

303 
WUUS53 KTOP 090056
SVRTOP
KSC157-201-090145-
/O.NEW.KTOP.SV.W.0017.210509T0056Z-210509T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
756 PM CDT Sat May 8 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Northeastern Republic County in north central Kansas...
  Northwestern Washington County in north central Kansas...

* Until 845 PM CDT.

* At 756 PM CDT, a severe thunderstorm was located near Munden,
  moving east at 40 mph.

  HAZARD...Ping pong 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...
  Washington, Morrowville, Haddam, Munden, Narka, Mahaska and
  Hollenberg.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for north central
Kansas.

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

&&

LAT...LON 4000 9692 3981 9697 3991 9767 4000 9764
TIME...MOT...LOC 0056Z 274DEG 36KT 3996 9754 

HAIL...1.50IN
WIND...60MPH
 
$$

Skow

1 follow-up statement

312 
WWUS53 KTOP 090125
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
825 PM CDT Sat May 8 2021

KSC157-090135-
/O.CAN.KTOP.SV.W.0017.000000T0000Z-210509T0145Z/
Republic-
825 PM CDT Sat May 8 2021

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

A Tornado Watch remains in effect until 100 AM CDT for north central
Kansas.

LAT...LON 4000 9692 3981 9697 3987 9737 4000 9736
TIME...MOT...LOC 0125Z 274DEG 36KT 3994 9716 

$$

KSC201-090145-
/O.CON.KTOP.SV.W.0017.000000T0000Z-210509T0145Z/
Washington-
825 PM CDT Sat May 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHWESTERN WASHINGTON COUNTY...

At 825 PM CDT, a severe thunderstorm was located 6 miles north of
Morrowville, moving east at 40 mph.

HAZARD...Ping pong 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...
Washington, Morrowville, Mahaska and Hollenberg. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 100 AM CDT for north central
Kansas.

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

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. This storm may cause serious injury and significant
property damage.

&&

LAT...LON 4000 9692 3981 9697 3987 9737 4000 9736
TIME...MOT...LOC 0125Z 274DEG 36KT 3994 9716 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

Skow

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:15 PM CDT	Special Weather Statement	TOP	Republic	15 min
May 8, 7:27 PM CDT	Severe Thunderstorm Warning	TOP	Republic	33 min
May 8, 7:52 PM CDT	Special Weather Statement	TOP	Marshall	23 min
May 8, 8:03 PM CDT	Severe Thunderstorm Warning	TOP	Marshall	42 min
May 8, 8:38 PM CDT	Severe Thunderstorm Warning	TOP	Marshall, Washington	52 min
May 8, 8:48 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	57 min
May 8, 9:24 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Morris, Riley	51 min
May 8, 9:27 PM CDT	Special Weather Statement	TOP	Marshall	33 min
May 8, 9:51 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Pottawatomie, Riley	24 min
May 8, 10:03 PM CDT	Severe Thunderstorm Warning	TOP	Geary, Jackson, Morris, Pottawatomie, Riley, Shawnee and 1 more	42 min
May 8, 10:11 PM CDT	Tornado Warning	TOP	Pottawatomie, Riley, Wabaunsee	21 min
May 8, 10:43 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Osage, Shawnee, Wabaunsee	47 min
May 8, 11:00 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson, Shawnee	45 min
May 8, 11:00 PM CDT	Severe Thunderstorm Warning	TOP	Dickinson	45 min
May 8, 11:26 PM CDT	Special Weather Statement	TOP	Douglas	49 min
May 8, 11:42 PM CDT	Areal Flood Advisory	TOP	Shawnee, Wabaunsee	3 hr
May 9, 12:00 AM CDT	Areal Flood Advisory	TOP	Dickinson, Geary	3 hr
May 9, 12:00 AM CDT	Special Weather Statement	TOP	Dickinson	45 min
May 9, 12:15 AM CDT	Flash Flood Warning	TOP	Shawnee, Wabaunsee	4 hr
May 9, 12:31 AM CDT	Areal Flood Advisory	TOP	Douglas	3 hr
May 9, 12:58 AM CDT	Special Weather Statement	TOP	Morris	47 min
May 9, 2:28 AM CDT	Special Weather Statement	TOP	Coffey	32 min
May 9, 3:56 AM CDT	Special Weather Statement	TOP	Douglas, Jackson, Jefferson, Shawnee	49 min

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.