Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 71, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 19, 2021, 5:31 PM CDT for Marion County, Ralls County, Missouri. It was in force for 59 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 19, 2021, 5:31 PM CDT (22:31 UTC)
- Expired
- Jun 19, 2021, 6:30 PM CDT
- In force
- 59 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Marion County, MO, Ralls County, MO
The radar
The St Louis radar (KLSX), 129 km from the middle of the area, began a volume at 22:32 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 19, 2:43 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 10.5 hours before the alert went out and 240 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
- 193 J/kg
- Mixed-layer CIN
- -377 J/kg
- Mixed-layer LCL
- 1271 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
877
WUUS53 KLSX 192231
SVRLSX
MOC127-173-192330-
/O.NEW.KLSX.SV.W.0071.210619T2231Z-210619T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
531 PM CDT Sat Jun 19 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Ralls County in northeastern Missouri...
Southwestern Marion County in northeastern Missouri...
* Until 630 PM CDT.
* At 530 PM CDT, a severe thunderstorm was located over Philadelphia,
moving southeast at 30 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...
Warren around 540 PM CDT.
Other locations in the path of this severe thunderstorm include
Monroe City, Rensselaer and Spaulding.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3960 9121 3945 9146 3944 9146 3936 9159
3957 9172 3966 9171 3966 9177 3978 9185
3981 9184 3991 9164
TIME...MOT...LOC 2230Z 319DEG 10KT 3981 9175
HAIL...1.00IN
WIND...60MPH
$$
GKS2 follow-up statements
187
WWUS53 KLSX 192253
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
553 PM CDT Sat Jun 19 2021
MOC127-173-192330-
/O.CON.KLSX.SV.W.0071.000000T0000Z-210619T2330Z/
Ralls MO-Marion MO-
553 PM CDT Sat Jun 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR RALLS AND SOUTHWESTERN MARION COUNTIES...
At 553 PM CDT, a severe thunderstorm was located near Rensselaer,
moving southeast at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Rensselaer, Spaulding and New London.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3960 9121 3945 9146 3944 9146 3936 9159
3957 9172 3966 9171 3966 9177 3977 9185
3979 9183 3989 9162
TIME...MOT...LOC 2253Z 306DEG 18KT 3970 9160
HAIL...1.00IN
WIND...60MPH
$$
GKS141
WWUS53 KLSX 192330
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
630 PM CDT Sat Jun 19 2021
MOC127-173-192340-
/O.EXP.KLSX.SV.W.0071.000000T0000Z-210619T2330Z/
Ralls MO-Marion MO-
630 PM CDT Sat Jun 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR RALLS AND SOUTHWESTERN MARION
COUNTIES HAS EXPIRED...
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 has been allowed to expire. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
northeastern Missouri.
LAT...LON 3960 9121 3945 9146 3944 9146 3936 9159
3957 9172 3966 9171 3966 9177 3977 9185
3979 9183 3989 9162
TIME...MOT...LOC 2330Z 319DEG 10KT 3963 9152
$$
GKSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 2:15 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 31 min |
| Jun 19, 2:44 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 32 min |
| Jun 19, 2:52 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 38 min |
| Jun 19, 2:55 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 50 min |
| Jun 19, 3:21 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 25 min |
| Jun 19, 3:31 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 44 min |
| Jun 19, 4:16 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Saint Louis | 44 min |
| Jun 19, 4:35 PM CDT | Flash Flood Warning | LSX | Saint Charles | 6 hr |
| Jun 19, 4:43 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 47 min |
| Jun 19, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 51 min |
| Jun 19, 5:17 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 43 min |
| Jun 19, 5:25 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 35 min |
| Jun 19, 5:46 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 59 min |
| Jun 19, 5:58 PM CDT | Flash Flood Warning | LSX | Marion, Pike, Ralls | 6 hr |
| Jun 19, 6:00 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 45 min |
| Jun 19, 6:46 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 44 min |
| Jun 19, 6:54 PM CDT | Severe Thunderstorm Warning | LSX | Monroe, Ralls | 51 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.