Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 47, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Jun 20, 2021, 8:01 PM CDT for 4 counties in Missouri. It was in force for 44 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 20, 2021, 8:01 PM CDT (01:01 UTC)
- Expired
- Jun 20, 2021, 8:45 PM CDT
- In force
- 44 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Adair County, MO, Linn County, MO, Macon County, MO, Sullivan County, MO
The radar
The Pleasant Hill radar (KEAX), 185 km from the middle of the area, began a volume at 01:01 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 20, 8:20 PM CDT | TSTM WND GST 60 | Novinger, MO | SPOTTER ESTIMATES 60MPH WINDS AND NUMEROUS 1 INCH DIAMETER TREE LIMBS DOWN. |
| Jun 20, 8:30 PM CDT | HAIL 1 | Kirksville, MO | |
| Jun 20, 8:32 PM CDT | TSTM WND GST 71 | Kirksville Regional, MO | REPORTED FROM IRK ASOS. |
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 20, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.0 hours before the alert went out and 263 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
- 1058 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1009 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.8
The text
As transmitted.
786
WUUS53 KEAX 210101
SVREAX
MOC001-115-121-211-210145-
/O.NEW.KEAX.SV.W.0047.210621T0101Z-210621T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
801 PM CDT Sun Jun 20 2021
The National Weather Service in Pleasant Hill has issued a
* Severe Thunderstorm Warning for...
Adair County in northeastern Missouri...
Northern Linn County in north central Missouri...
Sullivan County in north central Missouri...
Northern Macon County in north central Missouri...
* Until 845 PM CDT.
* At 800 PM CDT, a severe thunderstorm was located near Green City,
or 9 miles east of Milan, moving southeast at 35 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.
* This severe thunderstorm will be near...
Novinger around 815 PM CDT.
Other locations in the path of this severe thunderstorm include La
Plata.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3978 9274 3997 9336 4024 9336 4033 9289
4024 9235 3999 9235
TIME...MOT...LOC 0100Z 301DEG 31KT 4020 9294
HAIL...1.00IN
WIND...60MPH
$$
Blair1 follow-up statement
887
WWUS53 KEAX 210133
SVSEAX
Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
833 PM CDT Sun Jun 20 2021
MOC001-115-121-211-210145-
/O.CON.KEAX.SV.W.0047.000000T0000Z-210621T0145Z/
Adair MO-Linn MO-Sullivan MO-Macon MO-
833 PM CDT Sun Jun 20 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHERN ADAIR...NORTHERN LINN...SOUTHERN SULLIVAN AND NORTHERN
MACON COUNTIES...
At 833 PM CDT, a severe thunderstorm was located 7 miles west of La
Plata, moving southeast at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
La Plata.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3978 9274 3997 9336 4021 9336 4020 9235
3999 9235
TIME...MOT...LOC 0133Z 301DEG 31KT 4005 9262
HAIL...1.00IN
WIND...60MPH
$$
BlairThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 7:15 PM CDT | Severe Thunderstorm Warning | EAX | Grundy, Harrison, Mercer, Putnam, Sullivan | 45 min |
| Jun 20, 7:57 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Clinton, Platte | 33 min |
| Jun 20, 8:39 PM CDT | Severe Thunderstorm Warning | EAX | Adair, Macon | 36 min |
| Jun 20, 8:54 PM CDT | Special Weather Statement | EAX | Livingston | 21 min |
| Jun 20, 9:17 PM CDT | Special Weather Statement | EAX | Jackson | 28 min |
| Jun 20, 9:29 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson, Johnson | 20 min |
| Jun 20, 10:27 PM CDT | Severe Thunderstorm Warning | EAX | Cooper, Howard | 33 min |
| Jun 20, 11:05 PM CDT | Special Weather Statement | EAX | Bates | 25 min |
| Jun 21, 5:19 AM CDT | River Flood Warning | EAX | Howard | 9 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 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.