Alert archive / Missouri / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 252, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at May 16, 2026, 8:41 PM CDT for Grundy County, Mercer County, Sullivan County, Missouri. It was in force for 34 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
- May 16, 2026, 8:41 PM CDT (01:41 UTC)
- Expired
- May 16, 2026, 9:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Grundy County, MO, Mercer County, MO, Sullivan County, MO
The radar
The Des Moines radar (KDMX), 173 km from the middle of the area, began a volume at 01:45 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 |
|---|---|---|---|
| May 16, 4:40 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.7 hours before the alert went out and 239 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
- 2671 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1677 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.6
The text
As transmitted.
590
WUUS53 KEAX 170141
SVREAX
MOC079-129-211-170215-
/O.NEW.KEAX.SV.W.0252.260517T0141Z-260517T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
841 PM CDT Sat May 16 2026
The National Weather Service in Pleasant Hill has issued a
* Severe Thunderstorm Warning for...
Northeastern Grundy County in north central Missouri...
West central Sullivan County in north central Missouri...
Southeastern Mercer County in north central Missouri...
* Until 915 PM CDT.
* At 841 PM CDT, a severe thunderstorm was located near Galt, or 13
miles west of Milan, moving northeast at 25 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...
Harris and Osgood.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
A Tornado Watch remains in effect until 1100 PM CDT for north central
Missouri.
&&
LAT...LON 4012 9334 4017 9348 4035 9335 4026 9313
TIME...MOT...LOC 0141Z 217DEG 22KT 4018 9338
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Curtis1 follow-up statement
459
WWUS53 KEAX 170209
SVSEAX
Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
909 PM CDT Sat May 16 2026
MOC079-129-170219-
/O.CAN.KEAX.SV.W.0252.000000T0000Z-260517T0215Z/
Grundy MO-Mercer MO-
909 PM CDT Sat May 16 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GRUNDY AND
SOUTHEASTERN MERCER COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CDT for north central
Missouri.
&&
LAT...LON 4034 9332 4026 9313 4017 9326 4023 9337
4030 9337 4035 9334
TIME...MOT...LOC 0209Z 270DEG 22KT 4031 9323
$$
MOC211-170215-
/O.CON.KEAX.SV.W.0252.000000T0000Z-260517T0215Z/
Sullivan MO-
909 PM CDT Sat May 16 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR WEST CENTRAL SULLIVAN COUNTY...
At 909 PM CDT, a severe thunderstorm was located 9 miles northwest of
Milan, moving east at 25 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...
Harris.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for north central
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4034 9332 4026 9313 4017 9326 4023 9337
4030 9337 4035 9334
TIME...MOT...LOC 0209Z 270DEG 22KT 4031 9323
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
CurtisThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:01 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy, Harrison, Mercer | 44 min |
| May 16, 7:12 PM CDT | Severe Thunderstorm Warning | EAX | Harrison, Worth | 33 min |
| May 16, 7:14 PM CDT | Severe Thunderstorm Warning | EAX | Nodaway, Worth | 19 min |
| May 16, 7:20 PM CDT | Flash Flood Warning | EAX | Grundy, Linn, Sullivan | 6 hr |
| May 16, 7:32 PM CDT | Severe Thunderstorm Warning | EAX | Gentry, Harrison, Worth | 43 min |
| May 16, 7:32 PM CDT | Severe Thunderstorm Warning | EAX | Adair, Linn, Macon | 43 min |
| May 16, 7:43 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy, Harrison, Mercer | 47 min |
| May 16, 7:51 PM CDT | Severe Thunderstorm Warning | EAX | Gentry, Harrison, Mercer | 39 min |
| May 16, 7:58 PM CDT | Severe Thunderstorm Warning | EAX | Grundy, Sullivan | 47 min |
| May 16, 8:03 PM CDT | Severe Thunderstorm Warning | EAX | Grundy, Sullivan | 27 min |
| May 16, 8:16 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Gentry, Harrison | 44 min |
| May 16, 8:33 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Gentry, Grundy, Harrison, Mercer | 27 min |
| May 16, 8:56 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy, Harrison, Mercer | 49 min |
| May 16, 8:58 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, DeKalb, Gentry | 47 min |
| May 16, 9:13 PM CDT | Severe Thunderstorm Warning | EAX | Putnam, Sullivan | 32 min |
| May 16, 9:32 PM CDT | Severe Thunderstorm Warning | EAX | Grundy, Linn, Sullivan | 43 min |
| May 16, 9:35 PM CDT | Flash Flood Warning | EAX | Grundy | 6 hr |
| May 16, 10:04 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Harrison | 26 min |
| May 16, 10:06 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, DeKalb, Gentry | 24 min |
| May 16, 10:07 PM CDT | Flash Flood Warning | EAX | Daviess | 5 hr |
| May 16, 10:14 PM CDT | Severe Thunderstorm Warning | EAX | Grundy, Sullivan | 18 min |
| May 16, 10:16 PM CDT | Flood Watch | EAX | Andrew, Atchison, Bates, Buchanan, Caldwell, Carroll and 28 more | 60 hr |
| May 16, 10:19 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy | 26 min |
| May 16, 10:44 PM CDT | Severe Thunderstorm Warning | EAX | Grundy, Sullivan | 31 min |
| May 16, 10:46 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Gentry, Harrison | 29 min |
| May 16, 10:47 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, Harrison | 28 min |
| May 16, 11:14 PM CDT | Severe Thunderstorm Warning | EAX | Daviess, DeKalb, Gentry, Harrison | 31 min |
| May 16, 11:25 PM CDT | Severe Thunderstorm Warning | EAX | Adair, Putnam, Schuyler, Sullivan | 19 min |
| May 17, 12:16 AM CDT | Severe Thunderstorm Warning | EAX | Daviess, Grundy, Harrison, Mercer | 44 min |
| May 17, 12:56 AM CDT | River Flood Warning | EAX | Linn, Livingston | 5 days |
| May 17, 12:56 AM CDT | River Flood Warning | EAX | Carroll, Chariton, Linn, Livingston | 7 days |
| May 17, 1:14 AM CDT | Areal Flood Warning | EAX | Daviess, Gentry, Grundy, Harrison, Mercer | 17 hr |
| May 17, 1:23 AM CDT | Areal Flood Warning | EAX | Linn, Sullivan | 10 hr |
| May 17, 1:25 AM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan, Holt, Nodaway | 50 min |
| May 17, 2:10 AM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan, Clinton, DeKalb, Gentry, Holt and 1 more | 50 min |
| May 17, 3:28 AM CDT | Areal Flood Warning | EAX | Daviess, Grundy | 8 hr |
| May 17, 5:13 AM CDT | River Flood Warning | EAX | Grundy, Livingston | 19 hr |
| May 17, 5:57 AM CDT | River Flood Warning | EAX | Daviess, Gentry | 4 days |
| May 17, 8:43 AM CDT | River Flood Warning | EAX | Daviess, Livingston | 4 days |
| May 17, 9:43 AM CDT | River Flood Warning | EAX | Andrew, Nodaway | 7 hr |
| May 17, 9:43 AM CDT | River Flood Warning | EAX | Andrew, Buchanan | 10 hr |
| May 17, 9:43 AM CDT | River Flood Warning | EAX | Buchanan | 5 days |
Nearby
Severe Thunderstorm Warnings in Missouri, 2026Every severe thunderstorm warning in 2026
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.