Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 47, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jun 11, 2021, 2:03 PM CDT for Douglas County, Jefferson County, Shawnee County, Kansas. It was in force for 42 min. 3 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
- Jun 11, 2021, 2:03 PM CDT (19:03 UTC)
- Expired
- Jun 11, 2021, 2:45 PM CDT
- In force
- 42 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties Douglas County, KS, Jefferson County, KS, Shawnee County, KS
The radar
The Topeka radar (KTWX), 81 km from the middle of the area, began a volume at 19:08 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 |
|---|---|---|---|
| Jun 11, 2:30 PM CDT | TSTM WND GST 75 | Grantville, KS | |
| Jun 11, 2:35 PM CDT | TSTM WND DMG | Tecumseh, KS | TREE DAMAGE. |
| Jun 11, 2:41 PM CDT | TSTM WND DMG | 2 E Tecumseh, KS | REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN. |
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 |
|---|---|---|---|
| Jun 11, 12:32 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 7.1 hours before the alert went out and 30 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
- 2135 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.2
The text
As transmitted.
179
WUUS53 KTOP 111903
SVRTOP
KSC045-087-177-111945-
/O.NEW.KTOP.SV.W.0047.210611T1903Z-210611T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
203 PM CDT Fri Jun 11 2021
The National Weather Service in Topeka has issued a
* Severe Thunderstorm Warning for...
Southern Jefferson County in northeastern Kansas...
Northeastern Shawnee County in east central Kansas...
Douglas County in east central Kansas...
* Until 245 PM CDT.
* At 203 PM CDT, severe thunderstorms were located along a line
extending from Winchester to 6 miles north of Topeka, moving
southeast 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.
* Severe thunderstorms will be near...
McLouth around 215 PM CDT.
Other locations in the path of these severe thunderstorms include
Lecompton, Lawrence, Clinton, Clinton Lake, Lone Star, Pleasant
Grove, Globe, Baldwin City and Vinland.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3875 9548 3887 9550 3914 9565 3922 9518
3897 9519 3895 9509 3899 9506 3874 9506
TIME...MOT...LOC 1903Z 314DEG 42KT 3931 9527 3914 9570
HAIL...<.75IN
WIND...70MPH
$$
Omitt1 follow-up statement
233
WWUS53 KTOP 111916
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
216 PM CDT Fri Jun 11 2021
KSC045-087-177-111945-
/O.CON.KTOP.SV.W.0047.000000T0000Z-210611T1945Z/
Jefferson-Shawnee-Douglas-
216 PM CDT Fri Jun 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM CDT
FOR SOUTHERN JEFFERSON...NORTHEASTERN SHAWNEE AND DOUGLAS COUNTIES...
At 215 PM CDT, severe thunderstorms were located along a line
extending from near McLouth to Topeka, moving south at 30 mph.
These are very dangerous storms.
HAZARD...80 mph wind gusts and quarter size hail.
SOURCE...Emergency management.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
These severe storms will be near...
Clinton and Lawrence around 240 PM CDT.
Eudora and Globe around 255 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across Jefferson County. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.
&&
LAT...LON 3875 9548 3887 9550 3914 9565 3922 9518
3897 9519 3895 9509 3899 9506 3874 9506
TIME...MOT...LOC 1915Z 338DEG 28KT 3923 9519 3906 9562
HAIL...1.00IN
WIND...80MPH
$$
OmittThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 12:10 PM CDT | Special Weather Statement | TOP | Nemaha | 35 min |
| Jun 11, 12:19 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Marshall, Nemaha | 41 min |
| Jun 11, 12:56 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson, Nemaha | 49 min |
| Jun 11, 1:28 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson | 47 min |
| Jun 11, 2:10 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 35 min |
| Jun 11, 2:21 PM CDT | Special Weather Statement | TOP | Shawnee, Wabaunsee | 24 min |
| Jun 11, 2:25 PM CDT | Severe Thunderstorm Warning | TOP | Jackson | 19 min |
| Jun 11, 2:40 PM CDT | Severe Thunderstorm Warning | TOP | Douglas, Jefferson, Shawnee | 50 min |
| Jun 11, 3:08 PM CDT | Areal Flood Advisory | TOP | Douglas | 3 hr |
| Jun 11, 3:20 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson | 25 min |
| Jun 11, 3:35 PM CDT | Severe Thunderstorm Warning | TOP | Jackson | 25 min |
| Jun 11, 4:05 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Douglas, Franklin, Osage | 40 min |
| Jun 11, 4:45 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Franklin | 30 min |
| Jun 11, 5:15 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Franklin | 30 min |
| Jun 11, 5:32 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey | 28 min |
| Jun 11, 6:01 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey | 29 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.