Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 113, NWS Topeka, KS

July 15, 2021Republic County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 15, 2021, 4:48 PM CDT for Republic County, Kansas. It was in force for 27 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
Jul 15, 2021, 4:48 PM CDT (21:48 UTC)
Expired
Jul 15, 2021, 5:15 PM CDT
In force
27 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Republic County, KS

The radar

The Grand Island radar (KUEX), 82 km from the middle of the area, began a volume at 21:52 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

Omaha, NE (KOAX), launched 12:00Z, 9.8 hours before the alert went out and 205 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-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2021-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 443 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2021-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
443 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
676 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

435 
WUUS53 KTOP 152148
SVRTOP
KSC157-152215-
/O.NEW.KTOP.SV.W.0113.210715T2148Z-210715T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
448 PM CDT Thu Jul 15 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Southwestern Republic County in north central Kansas...

* Until 515 PM CDT.

* At 447 PM CDT, a severe thunderstorm was located near Scandia,
  moving south at 10 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...
  Belleville and Scandia. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3985 9783 3989 9768 3975 9758 3969 9782
TIME...MOT...LOC 2147Z 345DEG 10KT 3982 9776 

HAIL...1.00IN
WIND...60MPH
 
$$

Teefey
2 follow-up statements
709 
WWUS53 KTOP 152158
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
458 PM CDT Thu Jul 15 2021

KSC157-152215-
/O.CON.KTOP.SV.W.0113.000000T0000Z-210715T2215Z/
Republic-
458 PM CDT Thu Jul 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR SOUTHWESTERN REPUBLIC COUNTY...

At 457 PM CDT, a severe thunderstorm was located over Scandia, moving
south at 10 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...
Belleville and Scandia. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3982 9780 3986 9768 3975 9758 3969 9782
TIME...MOT...LOC 2157Z 345DEG 10KT 3979 9775 

HAIL...1.00IN
WIND...60MPH
 
$$

Teefey
796 
WWUS53 KTOP 152210
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
510 PM CDT Thu Jul 15 2021

KSC157-152219-
/O.EXP.KTOP.SV.W.0113.000000T0000Z-210715T2215Z/
Republic-
510 PM CDT Thu Jul 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN REPUBLIC COUNTY
WILL EXPIRE AT 515 PM 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. Heavy rain is 
still possible with this thunderstorm.

LAT...LON 3982 9780 3986 9768 3975 9758 3969 9782
TIME...MOT...LOC 2209Z 345DEG 10KT 3976 9774 

$$

Teefey

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 12:20 AM CDTAreal Flood AdvisoryTOPClay, Cloud, Ottawa, Riley4 hr
Jul 15, 12:33 AM CDTFlash Flood WarningTOPClay, Cloud, Riley3 hr
Jul 15, 2:19 AM CDTFlash Flood WarningTOPClay, Dickinson, Geary, Pottawatomie, Riley4 hr
Jul 15, 3:27 AM CDTAreal Flood WarningTOPClay, Cloud, Riley6 hr
Jul 15, 3:31 AM CDTFlash Flood WatchTOPAnderson, Clay, Coffey, Dickinson, Douglas, Franklin and 10 more16 hr
Jul 15, 3:46 AM CDTAreal Flood AdvisoryTOPDickinson, Geary, Morris, Wabaunsee4 hr
Jul 15, 6:08 AM CDTAreal Flood WarningTOPClay, Dickinson, Geary, Pottawatomie, Riley3 hr
Jul 15, 7:34 AM CDTRiver Flood WarningTOPRiley15 hr
Jul 15, 9:05 AM CDTFlash Flood WarningTOPClay, Geary, Riley4 hr
Jul 15, 9:53 AM CDTAreal Flood AdvisoryTOPPottawatomie, Riley3 hr
Jul 15, 3:28 PM CDTSpecial Weather StatementTOPRepublic32 min
Jul 15, 4:06 PM CDTSpecial Weather StatementTOPRepublic24 min
Jul 15, 4:54 PM CDTSpecial Weather StatementTOPCloud36 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021Every 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.