Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 48, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Jun 20, 2021, 8:39 PM CDT for Adair County, Macon County, Missouri. It was in force for 36 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
- Jun 20, 2021, 8:39 PM CDT (01:39 UTC)
- Expired
- Jun 20, 2021, 9:15 PM CDT
- In force
- 36 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Adair County, MO, Macon County, MO
The radar
The Pleasant Hill radar (KEAX), 187 km from the middle of the area, began a volume at 01:41 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 |
|---|---|---|---|
| Jun 20, 4:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.7 hours before the alert went out and 264 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.
341
WUUS53 KEAX 210139
SVREAX
MOC001-121-210215-
/O.NEW.KEAX.SV.W.0048.210621T0139Z-210621T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
839 PM CDT Sun Jun 20 2021
The National Weather Service in Pleasant Hill has issued a
* Severe Thunderstorm Warning for...
Southeastern Adair County in northeastern Missouri...
Macon County in north central Missouri...
* Until 915 PM CDT.
* At 839 PM CDT, a severe thunderstorm was located over La Plata,
moving southeast at 35 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
* This severe thunderstorm will remain over mainly rural areas of
southeastern Adair and Macon Counties, including the following
locations... Ethel, New Cambria, Millard, Kirksville Regional,
Gibbs, Elmer, Excello and South Gifford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3961 9230 3960 9240 3964 9267 3970 9269
3971 9285 3992 9285 4023 9235 3995 9235
3995 9229
TIME...MOT...LOC 0139Z 300DEG 31KT 4006 9248
HAIL...1.00IN
WIND...70MPH
$$
Blair2 follow-up statements
151
WWUS53 KEAX 210157
SVSEAX
Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
857 PM CDT Sun Jun 20 2021
MOC001-210207-
/O.CAN.KEAX.SV.W.0048.000000T0000Z-210621T0215Z/
Adair MO-
857 PM CDT Sun Jun 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAIR COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central Missouri.
LAT...LON 3961 9230 3960 9240 3964 9267 3970 9269
3971 9285 3995 9235 3995 9229
TIME...MOT...LOC 0157Z 308DEG 31KT 3982 9244
$$
MOC121-210215-
/O.CON.KEAX.SV.W.0048.000000T0000Z-210621T0215Z/
Macon MO-
857 PM CDT Sun Jun 20 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SOUTHERN MACON COUNTY...
At 857 PM CDT, a severe thunderstorm was located near Atlanta, or
near Macon, 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...
Macon, Bevier, Callao and Excello.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3961 9230 3960 9240 3964 9267 3970 9269
3971 9285 3995 9235 3995 9229
TIME...MOT...LOC 0157Z 308DEG 31KT 3982 9244
HAIL...1.00IN
WIND...60MPH
$$
Blair703
WWUS53 KEAX 210212
SVSEAX
Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
912 PM CDT Sun Jun 20 2021
MOC121-210222-
/O.EXP.KEAX.SV.W.0048.000000T0000Z-210621T0215Z/
Macon MO-
912 PM CDT Sun Jun 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MACON COUNTY WILL
EXPIRE AT 915 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
north central Missouri.
LAT...LON 3961 9230 3960 9240 3964 9267 3970 9269
3971 9285 3995 9235 3995 9229
TIME...MOT...LOC 0212Z 300DEG 31KT 3977 9232
$$
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, 8:01 PM CDT | Severe Thunderstorm Warning | EAX | Adair, Linn, Macon, Sullivan | 44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.