Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 90, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Jul 10, 2021, 8:07 PM CDT for Cass County, Jackson County, Missouri; Johnson County, Miami County, Kansas. It was in force for 23 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
- Jul 10, 2021, 8:07 PM CDT (01:07 UTC)
- Expired
- Jul 10, 2021, 8:30 PM CDT
- In force
- 23 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Johnson County, KS, Miami County, KS, Cass County, MO, Jackson County, MO
The radar
The Pleasant Hill radar (KEAX), 31 km from the middle of the area, began a volume at 01:10 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 |
|---|---|---|---|
| Jul 10, 8:15 PM CDT | HAIL 1 | Stillwell, 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 |
|---|---|---|---|
| Jul 10, 2:18 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.1 hours before the alert went out and 92 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
- 1434 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1268 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted.
377
WUUS53 KEAX 110107
SVREAX
KSC091-121-MOC037-095-110130-
/O.NEW.KEAX.SV.W.0090.210711T0107Z-210711T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
807 PM CDT Sat Jul 10 2021
The National Weather Service in Pleasant Hill has issued a
* Severe Thunderstorm Warning for...
Northeastern Miami County in east central Kansas...
Southeastern Johnson County in east central Kansas...
Northwestern Cass County in west central Missouri...
Southwestern Jackson County in west central Missouri...
* Until 830 PM CDT.
* At 807 PM CDT, a severe thunderstorm was located near Overland
Park, moving southeast at 35 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...
Overland Park, Olathe, Lee's Summit, Leawood, Grandview, Belton,
Raymore, Peculiar, Lake Winnebago, Cleveland, Freeman, Lake
Annette, West Line, Stillwell and Stanley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3880 9481 3893 9471 3880 9428 3856 9449
TIME...MOT...LOC 0107Z 298DEG 32KT 3882 9469
HAIL...1.25IN
WIND...60MPH
$$
PP1 follow-up statement
912
WWUS53 KEAX 110129
SVSEAX
Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
829 PM CDT Sat Jul 10 2021
KSC091-121-MOC037-095-110139-
/O.EXP.KEAX.SV.W.0090.000000T0000Z-210711T0130Z/
Miami KS-Johnson KS-Cass MO-Jackson MO-
829 PM CDT Sat Jul 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIAMI...
SOUTHEASTERN JOHNSON...NORTHWESTERN CASS AND SOUTHWESTERN JACKSON
COUNTIES WILL EXPIRE AT 830 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
east central Kansas...and west central Missouri.
LAT...LON 3880 9481 3893 9471 3880 9428 3856 9449
TIME...MOT...LOC 0129Z 298DEG 32KT 3873 9448
$$
PPThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:48 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Pettis | 27 min |
| Jul 10, 8:03 PM CDT | Special Weather Statement | EAX | Cass | 42 min |
| Jul 10, 8:11 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette, Pettis, Saline | 22 min |
| Jul 10, 8:22 PM CDT | Special Weather Statement | EAX | Chariton, Linn | 38 min |
| Jul 10, 8:57 PM CDT | Special Weather Statement | EAX | Adair, Macon, Randolph | 48 min |
| Jul 10, 10:22 PM CDT | Special Weather Statement | EAX | Henry | 53 min |
| Jul 11, 2:13 AM CDT | River Flood Warning | EAX | Grundy, Livingston | 31 hr |
| Jul 11, 4:14 AM CDT | River Flood Warning | EAX | Linn, Livingston | 43 hr |
| Jul 11, 3:13 PM CDT | River Flood Warning | EAX | Adair, Macon, Putnam, Schuyler | 34 hr |
| Jul 10, 7:14 PM CDT | Special Weather Statement | EAX | Johnson, Wyandotte | 46 min |
| Jul 10, 7:17 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Leavenworth | 28 min |
| Jul 10, 8:53 PM CDT | Special Weather Statement | EAX | Miami | 37 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2021Severe 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.