Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 19, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 2021, 7:53 PM CDT for 4 counties in Missouri. It was in force for 67 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
- Mar 27, 2021, 7:53 PM CDT (00:53 UTC)
- Expired
- Mar 27, 2021, 9:00 PM CDT
- In force
- 67 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Iron County, MO, Madison County, MO, Reynolds County, MO, Saint Francois County, MO
The radar
The St Louis radar (KLSX), 162 km from the middle of the area, began a volume at 00:57 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 |
|---|---|---|---|
| Mar 27, 4:44 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.9 hours before the alert went out and 267 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
- 36 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 1300 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km storm-relative helicity
- -85 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted.
928
WUUS53 KLSX 280053
SVRLSX
MOC093-123-179-187-280200-
/O.NEW.KLSX.SV.W.0019.210328T0053Z-210328T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
753 PM CDT Sat Mar 27 2021
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southeastern Iron County in southeastern Missouri...
Reynolds County in southeastern Missouri...
Madison County in southeastern Missouri...
South central St. Francois County in southeastern Missouri...
* Until 900 PM CDT.
* At 753 PM CDT, a severe thunderstorm was located near Reynolds,
moving east at 55 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...
Fredericktown, Ironton, Reynolds, Ellington, Pilot Knob, Arcadia,
Annapolis, Junction City, Cobalt, Marquand, Buckhorn, Glover,
Roselle, Garwood, Saco, Centerville, Des Arc, Corridon, Sabula and
Mine La Motte.
This also includes Fort Davidson Historic Site, Taum Sauk Mountain
State Park, and Clearwater Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3705 9096 3710 9096 3710 9102 3717 9103
3716 9107 3729 9116 3731 9116 3732 9118
3739 9118 3765 9064 3765 9015 3731 9015
3732 9055 3727 9055 3727 9074 3717 9074
3717 9075 3714 9076 3714 9078 3705 9078
TIME...MOT...LOC 0053Z 248DEG 46KT 3733 9109
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
CVKING4 follow-up statements
365
WWUS53 KLSX 280116
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
816 PM CDT Sat Mar 27 2021
MOC093-123-179-187-280200-
/O.CON.KLSX.SV.W.0019.000000T0000Z-210328T0200Z/
Iron MO-Reynolds MO-Madison MO-St. Francois MO-
816 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHEASTERN IRON...SOUTHEASTERN REYNOLDS...MADISON AND SOUTH
CENTRAL ST. FRANCOIS COUNTIES IN SOUTHEASTERN MISSOURI...
At 816 PM CDT, a severe thunderstorm was located near Glover, moving
east at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fredericktown, Ironton, Ellington, Pilot Knob, Arcadia, Annapolis,
Junction City, Cobalt, Marquand, Buckhorn, Glover, Roselle, Garwood,
Saco, Des Arc, Catherine Place, Redford, Hogan, Vulcan and Sabula.
This also includes Fort Davidson Historic Site and Clearwater Lake
Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3705 9096 3710 9096 3710 9102 3717 9103
3765 9064 3765 9015 3731 9015 3732 9055
3727 9055 3727 9074 3717 9074 3717 9075
3714 9076 3714 9078 3705 9078
TIME...MOT...LOC 0116Z 270DEG 46KT 3743 9074
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
CVKING506
WWUS53 KLSX 280133
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
833 PM CDT Sat Mar 27 2021
MOC187-280142-
/O.CAN.KLSX.SV.W.0019.000000T0000Z-210328T0200Z/
St. Francois MO-
833 PM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ST. FRANCOIS
COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern Missouri.
LAT...LON 3705 9096 3710 9096 3710 9102 3760 9056
3764 9015 3731 9015 3732 9055 3727 9055
3727 9074 3717 9074 3714 9076 3714 9078
3705 9078
TIME...MOT...LOC 0132Z 257DEG 39KT 3763 9025 3710 9094
$$
MOC093-123-179-280200-
/O.CON.KLSX.SV.W.0019.000000T0000Z-210328T0200Z/
Iron MO-Reynolds MO-Madison MO-
833 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHEASTERN IRON...SOUTHEASTERN REYNOLDS AND MADISON COUNTIES IN
SOUTHEASTERN MISSOURI...
At 832 PM CDT, severe thunderstorms were located along a line
extending from near Junction City to near Garwood, moving east at 45
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Fredericktown, Annapolis, Junction City, Cobalt, Marquand, Buckhorn,
Roselle, Garwood, Saco, Des Arc, Catherine Place, Vulcan, Sabula,
Mine La Motte and Chloride.
This also includes Clearwater Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3705 9096 3710 9096 3710 9102 3760 9056
3764 9015 3731 9015 3732 9055 3727 9055
3727 9074 3717 9074 3714 9076 3714 9078
3705 9078
TIME...MOT...LOC 0132Z 257DEG 39KT 3763 9025 3710 9094
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
CVKING067
WWUS53 KLSX 280140 RRA
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
840 PM CDT Sat Mar 27 2021
MOC093-123-179-280200-
/O.CON.KLSX.SV.W.0019.000000T0000Z-210328T0200Z/
Iron MO-Reynolds MO-Madison MO-
840 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHEASTERN IRON...SOUTHEASTERN REYNOLDS AND MADISON COUNTIES IN
SOUTHEASTERN MISSOURI...
At 840 PM CDT, severe thunderstorms were located along a line
extending from near Womac to 6 miles west of Piedmont, moving east at
55 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...
Fredericktown, Junction City, Cobalt, Marquand, Buckhorn, Garwood,
Saco, Des Arc, Catherine Place and Vulcan.
This also includes Clearwater Lake Recreational Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3705 9096 3710 9096 3710 9102 3745 9055
3763 9025 3764 9015 3731 9015 3732 9055
3727 9055 3727 9074 3717 9074 3714 9076
3714 9078 3705 9078
TIME...MOT...LOC 0140Z 248DEG 46KT 3767 9013 3714 9082
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
CVKING928
WWUS53 KLSX 280152
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
852 PM CDT Sat Mar 27 2021
MOC093-179-280202-
/O.CAN.KLSX.SV.W.0019.000000T0000Z-210328T0200Z/
Iron MO-Reynolds MO-
852 PM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN IRON AND
SOUTHEASTERN REYNOLDS COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern Missouri.
LAT...LON 3736 9054 3763 9015 3731 9015 3732 9054
TIME...MOT...LOC 0152Z 247DEG 46KT 3756 9018 3736 9042
$$
MOC123-280200-
/O.CON.KLSX.SV.W.0019.000000T0000Z-210328T0200Z/
Madison MO-
852 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR SOUTHEASTERN MADISON COUNTY IN SOUTHEASTERN MISSOURI...
At 852 PM CDT, severe thunderstorms were located along a line
extending from near Cobalt to Saco, moving northeast at 55 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...
Marquand, Buckhorn and Saco.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3736 9054 3763 9015 3731 9015 3732 9054
TIME...MOT...LOC 0152Z 247DEG 46KT 3756 9018 3736 9042
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 7:27 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 48 min |
| Mar 27, 8:11 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 64 min |
| Mar 27, 9:10 PM CDT | Areal Flood Advisory | LSX | Madison | 3 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.