Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 117, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Aug 7, 2021, 9:08 PM CDT for 6 counties in Kansas. It was in force for 52 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
- Aug 7, 2021, 9:08 PM CDT (02:08 UTC)
- Expired
- Aug 7, 2021, 10:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clay County, KS, Dickinson County, KS, Geary County, KS, Morris County, KS, Ottawa County, KS, Riley County, KS
The radar
The Topeka radar (KTWX), 82 km from the middle of the area, began a volume at 02:11 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 7, 6:35 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 2.1 hours before the alert went out and 133 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.
- Mixed-layer CAPE
- 1803 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1923 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 7.5
The text
As transmitted.
428
WUUS53 KTOP 080208
SVRTOP
KSC027-041-061-127-143-161-080300-
/O.NEW.KTOP.SV.W.0117.210808T0208Z-210808T0300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
908 PM CDT Sat Aug 7 2021
The National Weather Service in Topeka has issued a
* Severe Thunderstorm Warning for...
Dickinson County in central Kansas...
Western Geary County in east central Kansas...
Southwestern Riley County in northeastern Kansas...
Western Morris County in east central Kansas...
Eastern Ottawa County in north central Kansas...
Southern Clay County in north central Kansas...
* Until 1000 PM CDT.
* At 907 PM CDT, severe thunderstorms were located along a line
extending from 3 miles northeast of Oak Hill to 5 miles southwest
of Gypsum, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Junction City, Abilene, Herington, Ogden, Grandview Plaza, Chapman,
Solomon, Wakefield, Riley, Enterprise, Milford, Hope, Woodbine,
Wells, Manchester, Longford, Carlton, Oak Hill, Latimer and
Talmage.
This includes Interstate 70 between mile markers 267 and 304.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3931 9752 3931 9737 3932 9737 3937 9668
3936 9669 3934 9667 3852 9682 3852 9693
3861 9693 3861 9737 3891 9737 3893 9738
3893 9737 3896 9737 3896 9759
TIME...MOT...LOC 0207Z 272DEG 42KT 3929 9729 3865 9749
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Reese3 follow-up statements
939
WWUS53 KTOP 080222
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
922 PM CDT Sat Aug 7 2021
KSC027-041-061-127-143-161-080300-
/O.CON.KTOP.SV.W.0117.000000T0000Z-210808T0300Z/
Dickinson-Geary-Riley-Morris-Ottawa-Clay-
922 PM CDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR DICKINSON...WESTERN GEARY...SOUTHWESTERN RILEY...WESTERN
MORRIS...EASTERN OTTAWA AND SOUTHERN CLAY COUNTIES...
At 922 PM CDT, severe thunderstorms were located along a line
extending from 6 miles south of Clay Center to 3 miles south of
Carlton, moving east at 50 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Junction City, Abilene, Herington, Ogden, Grandview Plaza, Chapman,
Solomon, Wakefield, Riley, Enterprise, Milford, Hope, Woodbine,
Manchester, Longford, Carlton, Oak Hill, Latimer, Niles and Talmage.
This includes Interstate 70 between mile markers 267 and 304.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3931 9749 3931 9737 3932 9737 3937 9668
3936 9669 3934 9667 3852 9682 3852 9693
3861 9693 3861 9737 3891 9737 3893 9738
3893 9737 3896 9737 3896 9752
TIME...MOT...LOC 0222Z 270DEG 41KT 3928 9714 3864 9728
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Reese477
WWUS53 KTOP 080237
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
937 PM CDT Sat Aug 7 2021
KSC143-080245-
/O.CAN.KTOP.SV.W.0117.000000T0000Z-210808T0300Z/
Ottawa-
937 PM CDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OTTAWA COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
central, north central, northeastern and east central Kansas.
LAT...LON 3937 9668 3936 9669 3934 9667 3852 9682
3852 9693 3861 9693 3861 9737 3933 9724
TIME...MOT...LOC 0235Z 272DEG 42KT 3928 9697 3864 9711
$$
KSC027-041-061-127-161-080300-
/O.CON.KTOP.SV.W.0117.000000T0000Z-210808T0300Z/
Dickinson-Geary-Riley-Morris-Clay-
937 PM CDT Sat Aug 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR DICKINSON...WESTERN GEARY...SOUTHWESTERN RILEY...WESTERN MORRIS
AND SOUTHEASTERN CLAY COUNTIES...
At 935 PM CDT, severe thunderstorms were located along a line
extending from 4 miles northeast of Wakefield to 3 miles northwest of
Ramona, moving east at 50 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Junction City, Abilene, Herington, Ogden, Grandview Plaza, Chapman,
Wakefield, Riley, Enterprise, Milford, Hope, Woodbine, Carlton,
Latimer, Talmage, Milford Lake, Moonlight, Keats and Burdick.
This includes Interstate 70 between mile markers 270 and 304.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3937 9668 3936 9669 3934 9667 3852 9682
3852 9693 3861 9693 3861 9737 3933 9724
TIME...MOT...LOC 0235Z 272DEG 42KT 3928 9697 3864 9711
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
Reese793
WWUS53 KTOP 080253
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
953 PM CDT Sat Aug 7 2021
KSC027-041-061-127-161-080302-
/O.EXP.KTOP.SV.W.0117.000000T0000Z-210808T0300Z/
Dickinson-Geary-Riley-Morris-Clay-
953 PM CDT Sat Aug 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR DICKINSON...WESTERN GEARY...
SOUTHWESTERN RILEY...WESTERN MORRIS AND SOUTHEASTERN CLAY COUNTIES
WILL EXPIRE AT 1000 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
central, north central, northeastern and east central Kansas.
Remember, a Severe Thunderstorm Warning still remains in effect for
Riley, Geary, and Morris Counties until 1030 PM CDT.
LAT...LON 3937 9668 3936 9669 3934 9667 3852 9682
3852 9693 3861 9693 3861 9737 3933 9724
TIME...MOT...LOC 0252Z 270DEG 42KT 3927 9675 3863 9689
$$
ReeseThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 8:19 PM CDT | Severe Thunderstorm Warning | TOP | Cloud, Republic | 41 min |
| Aug 7, 8:26 PM CDT | Special Weather Statement | TOP | Cloud, Ottawa | 49 min |
| Aug 7, 8:42 PM CDT | Severe Thunderstorm Warning | TOP | Cloud, Ottawa | 33 min |
| Aug 7, 8:56 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Riley, Washington | 49 min |
| Aug 7, 9:41 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Marshall, Pottawatomie, Riley, Washington | 49 min |
| Aug 7, 9:49 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Lyon, Morris, Pottawatomie, Riley, Wabaunsee | 41 min |
| Aug 7, 10:28 PM CDT | Special Weather Statement | TOP | Morris, Wabaunsee | 32 min |
| Aug 7, 10:29 PM CDT | Special Weather Statement | TOP | Nemaha | 31 min |
| Aug 7, 10:56 PM CDT | Special Weather Statement | TOP | Jackson, Shawnee | 34 min |
| Aug 7, 11:28 PM CDT | Special Weather Statement | TOP | Brown, Douglas, Jackson, Jefferson, Lyon, Morris and 3 more | 32 min |
| Aug 8, 12:00 AM CDT | Special Weather Statement | TOP | Anderson, Coffey, Douglas, Franklin, Lyon, Osage | 30 min |
| Aug 8, 2:27 PM CDT | Heat Advisory | TOP | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more | 4 days |
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.