Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 20, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Apr 7, 2021, 2:38 PM CDT for Benton County, Camden County, Morgan County, Missouri. It was in force for 52 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 7, 2021, 2:38 PM CDT (19:38 UTC)
- Expired
- Apr 7, 2021, 3:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Benton County, MO, Camden County, MO, Morgan County, MO
The radar
The Pleasant Hill radar (KEAX), 129 km from the middle of the area, began a volume at 19:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 7, 3:15 PM CDT | TSTM WND GST 61 | 7 Sse Syracuse, MO | THIS IS A DELAYED REPORT. A PUBLIC, TEMPEST WEATHER STATION MEASURED A 61 MPH GUST NEAR FORTUNA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 7, 12:02 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 7.6 hours before the alert went out and 188 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
- 790 J/kg
- Mixed-layer CIN
- -275 J/kg
- Mixed-layer LCL
- 767 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
240
WUUS53 KSGF 071938
SVRSGF
MOC015-029-141-072030-
/O.NEW.KSGF.SV.W.0020.210407T1938Z-210407T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
238 PM CDT Wed Apr 7 2021
The National Weather Service in Springfield has issued a
* Severe Thunderstorm Warning for...
Northeastern Benton County in central Missouri...
Northwestern Camden County in central Missouri...
Morgan County in central Missouri...
* Until 330 PM CDT.
* At 238 PM CDT, severe thunderstorms were located along a line
extending from near Cole Camp to 12 miles west of Laurie, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Lake of The Ozarks... Versailles...
Village of Four Seasons... Lake Ozark...
Cole Camp... Stover...
Laurie... Sunrise Beach...
Barnett... Syracuse...
Gravois Mills... Climax Springs...
Rocky Mount... Lakeview Heights...
Florence... Crockerville...
Zora... Knobby...
Edmonson... Mora...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3821 9265 3819 9264
3806 9306 3840 9330 3854 9322 3853 9307
3869 9306
TIME...MOT...LOC 1938Z 213DEG 39KT 3839 9323 3814 9305
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
Schaumann4 follow-up statements
771
WWUS53 KSGF 071955
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
255 PM CDT Wed Apr 7 2021
MOC015-029-141-072030-
/O.CON.KSGF.SV.W.0020.000000T0000Z-210407T2030Z/
Benton MO-Camden MO-Morgan MO-
255 PM CDT Wed Apr 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR NORTHEASTERN BENTON...NORTHWESTERN CAMDEN AND MORGAN COUNTIES...
At 255 PM CDT, severe thunderstorms were located along a line
extending from 7 miles northeast of Cole Camp to Stover to 7 miles
southwest of Laurie, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Lake of The Ozarks... Versailles...
Village of Four Seasons... Lake Ozark...
Cole Camp... Stover...
Laurie... Sunrise Beach...
Barnett... Syracuse...
Gravois Mills... Rocky Mount...
Florence... Crockerville...
Zora... Mora...
Barnumton... Purvis...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3821 9265 3819 9264
3808 9300 3844 9322 3854 9322 3853 9307
3869 9306
TIME...MOT...LOC 1955Z 212DEG 44KT 3853 9310 3844 9296 3814 9294
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
Schaumann159
WWUS53 KSGF 072009
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
309 PM CDT Wed Apr 7 2021
MOC015-072018-
/O.CAN.KSGF.SV.W.0020.000000T0000Z-210407T2030Z/
Benton MO-
309 PM CDT Wed Apr 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BENTON 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 700 PM CDT for
central Missouri.
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3821 9265 3819 9264
3808 9300 3837 9299 3853 9307 3869 9306
TIME...MOT...LOC 2008Z 212DEG 39KT 3863 9301 3854 9287 3828 9275
$$
MOC029-141-072030-
/O.CON.KSGF.SV.W.0020.000000T0000Z-210407T2030Z/
Camden MO-Morgan MO-
309 PM CDT Wed Apr 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR NORTHWESTERN CAMDEN AND MORGAN COUNTIES...
At 308 PM CDT, severe thunderstorms were located along a line
extending from near Otterville to 8 miles north of Versailles to near
Village of Four Seasons, moving northeast at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Lake of The Ozarks... Versailles...
Village of Four Seasons... Lake Ozark...
Stover... Laurie...
Sunrise Beach... Barnett...
Syracuse... Gravois Mills...
Rocky Mount... Florence...
Barnumton... Purvis...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
&&
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3821 9265 3819 9264
3808 9300 3837 9299 3853 9307 3869 9306
TIME...MOT...LOC 2008Z 212DEG 39KT 3863 9301 3854 9287 3828 9275
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
Schaumann484
WWUS53 KSGF 072024
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
324 PM CDT Wed Apr 7 2021
MOC029-072034-
/O.CAN.KSGF.SV.W.0020.000000T0000Z-210407T2030Z/
Camden MO-
324 PM CDT Wed Apr 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAMDEN 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 700 PM CDT for
central Missouri.
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3822 9276 3819 9277
3823 9292 3840 9291 3852 9300 3868 9296
TIME...MOT...LOC 2024Z 208DEG 27KT 3870 9297 3861 9283 3835 9271
$$
MOC141-072030-
/O.CON.KSGF.SV.W.0020.000000T0000Z-210407T2030Z/
Morgan MO-
324 PM CDT Wed Apr 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR MORGAN COUNTY...
At 324 PM CDT, severe thunderstorms were located along a line
extending from near Otterville to near Tipton to 6 miles west of
Eldon, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Lake of The Ozarks... Versailles...
Laurie... Sunrise Beach...
Barnett... Syracuse...
Gravois Mills... Rocky Mount...
Florence...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3822 9276 3819 9277
3823 9292 3840 9291 3852 9300 3868 9296
TIME...MOT...LOC 2024Z 208DEG 27KT 3870 9297 3861 9283 3835 9271
HAIL...0.75IN
WIND...60MPH
$$
Schaumann217
WWUS53 KSGF 072029
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
329 PM CDT Wed Apr 7 2021
MOC141-072039-
/O.EXP.KSGF.SV.W.0020.000000T0000Z-210407T2030Z/
Morgan MO-
329 PM CDT Wed Apr 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR MORGAN COUNTY WILL EXPIRE AT
330 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
central Missouri.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Springfield.
LAT...LON 3868 9284 3860 9284 3843 9263 3835 9263
3835 9269 3822 9270 3822 9276 3819 9277
3823 9292 3840 9291 3852 9300 3868 9296
TIME...MOT...LOC 2029Z 213DEG 39KT 3872 9296 3863 9282 3837 9270
$$
SchaumannThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 7:16 AM CDT | Special Weather Statement | SGF | Christian | 29 min |
| Apr 7, 12:39 PM CDT | Special Weather Statement | SGF | Dade | 36 min |
| Apr 7, 1:04 PM CDT | Special Weather Statement | SGF | St. Clair | 26 min |
| Apr 7, 2:07 PM CDT | Severe Thunderstorm Warning | SGF | Christian, Greene, Stone | 38 min |
| Apr 7, 2:46 PM CDT | Tornado Warning | SGF | Benton, Morgan | 29 min |
| Apr 7, 3:27 PM CDT | Severe Thunderstorm Warning | SGF | Webster, Wright | 48 min |
| Apr 7, 3:56 PM CDT | Severe Thunderstorm Warning | SGF | Miller | 34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.