Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 100, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Aug 12, 2021, 2:18 PM CDT for Grundy County, Linn County, Livingston County, Missouri. It was in force for 27 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
- Aug 12, 2021, 2:18 PM CDT (19:18 UTC)
- Expired
- Aug 12, 2021, 2:45 PM CDT
- In force
- 27 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Grundy County, MO, Linn County, MO, Livingston County, MO
The radar
The Pleasant Hill radar (KEAX), 147 km from the middle of the area, began a volume at 19:19 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 nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 7.3 hours before the alert went out and 224 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
- 951 J/kg
- Mixed-layer CIN
- -437 J/kg
- Mixed-layer LCL
- 1729 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
036
WUUS53 KEAX 121918
SVREAX
MOC079-115-117-121945-
/O.NEW.KEAX.SV.W.0100.210812T1918Z-210812T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
218 PM CDT Thu Aug 12 2021
The National Weather Service in Pleasant Hill has issued a
* Severe Thunderstorm Warning for...
Northwestern Linn County in north central Missouri...
Southeastern Grundy County in north central Missouri...
Northern Livingston County in north central Missouri...
* Until 245 PM CDT.
* At 218 PM CDT, a severe thunderstorm was located 8 miles north of
Chillicothe, moving east at 45 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...
Laclede, Linneus, Browning, Chula, Laredo, Purdin and Spring Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3979 9313 3984 9366 4001 9364 4004 9326
4003 9311
TIME...MOT...LOC 1918Z 273DEG 41KT 3992 9355
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
HBThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 4:29 AM CDT | Special Weather Statement | EAX | Harrison | 31 min |
| Aug 12, 4:58 AM CDT | Special Weather Statement | EAX | Mercer | 47 min |
| Aug 12, 5:31 AM CDT | Severe Thunderstorm Warning | EAX | Harrison, Mercer | 29 min |
| Aug 12, 6:00 AM CDT | Special Weather Statement | EAX | Mercer | 30 min |
| Aug 12, 8:37 AM CDT | Special Weather Statement | EAX | Schuyler | 8 min |
| Aug 12, 8:38 AM CDT | Special Weather Statement | EAX | Schuyler | 37 min |
| Aug 12, 1:27 PM CDT | Flash Flood Watch | EAX | Putnam, Schuyler | 6 hr |
| Aug 12, 1:42 PM CDT | Special Weather Statement | EAX | Daviess, Grundy, Sullivan | 48 min |
| Aug 12, 1:45 PM CDT | Special Weather Statement | EAX | Schuyler | 30 min |
| Aug 12, 2:15 PM CDT | Flash Flood Warning | EAX | Putnam, Schuyler | 2 hr |
| Aug 12, 2:16 PM CDT | Special Weather Statement | EAX | Caldwell, Linn, Livingston | 29 min |
| Aug 12, 2:31 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Carroll, Daviess, Linn, Livingston | 29 min |
| Aug 12, 2:49 PM CDT | Severe Thunderstorm Warning | EAX | Carroll, Chariton, Livingston | 26 min |
| Aug 12, 3:13 PM CDT | Severe Thunderstorm Warning | EAX | Carroll, Chariton, Livingston, Saline | 32 min |
| Aug 12, 3:28 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Platte | 32 min |
| Aug 12, 3:44 PM CDT | Severe Thunderstorm Warning | EAX | Chariton, Macon, Randolph | 31 min |
| Aug 12, 3:53 PM CDT | Severe Thunderstorm Warning | EAX | Randolph | 37 min |
| Aug 12, 3:56 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Jackson, Platte | 34 min |
| Aug 12, 4:09 PM CDT | Severe Thunderstorm Warning | EAX | Clay, Jackson, Lafayette, Ray, Saline | 36 min |
| Aug 12, 4:42 PM CDT | Severe Thunderstorm Warning | EAX | Jackson, Johnson, Lafayette | 33 min |
| Aug 12, 5:11 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson, Johnson, Lafayette | 34 min |
| Aug 12, 5:18 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson | 27 min |
| Aug 12, 5:22 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 8 min |
| Aug 12, 5:37 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson, Johnson | 8 min |
| Aug 12, 5:43 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson, Johnson | 32 min |
| Aug 12, 6:15 PM CDT | Special Weather Statement | EAX | Cass | 45 min |
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.