Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 25, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Apr 9, 2021, 3:41 PM CDT for Howell County, Oregon County, Ozark County, Missouri. It was in force for 49 min. 3 reports 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 9, 2021, 3:41 PM CDT (20:41 UTC)
- Expired
- Apr 9, 2021, 4:30 PM CDT
- In force
- 49 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Howell County, MO, Oregon County, MO, Ozark County, MO
The radar
The Springfield radar (KSGF), 146 km from the middle of the area, began a volume at 20:44 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 9, 4:04 PM CDT | HAIL 1 | Thayer, MO | SOCIAL MEDIA REPORT OF QUARTER SIZE HAIL IN THAYER. |
| Apr 9, 4:05 PM CDT | HAIL 0.7 | Thayer, MO | |
| Apr 9, 4:24 PM CDT | TSTM WND DMG | Brandsville, MO | ELECTRIC COMPANY REPORTED HUNDREDS OF OUTAGES DUE TO HIGH WINDS ACROSS THE HOWELL-OREGON COUNTY ELECTRIC AREA. SEVERAL PUBLIC WEATHER STATIONS REPORTED MEASURED WIND GUSTS OF 45 TO 55 MPH FROM 4PM TO 430PM. |
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 9, 3:13 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.7 hours before the alert went out and 168 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
- 107 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 415 m²/s²
- 0-3 km storm-relative helicity
- 429 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
981
WUUS53 KSGF 092041
SVRSGF
MOC091-149-153-092130-
/O.NEW.KSGF.SV.W.0025.210409T2041Z-210409T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
341 PM CDT Fri Apr 9 2021
The National Weather Service in Springfield has issued a
* Severe Thunderstorm Warning for...
Eastern Ozark County in southwestern Missouri...
Southern Howell County in south central Missouri...
Oregon County in south central Missouri...
* Until 430 PM CDT.
* At 340 PM CDT, severe thunderstorms were located along a line
extending from Gamaliel Landing to near Salem in Fulton County to
Ballard, moving north at 35 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...
West Plains... Norfork Lake...
Grand Gulf State Park... Thayer...
Alton... Gainesville...
Bakersfield... South Fork...
Koshkonong... Brandsville...
Lanton... Myrtle...
Wilderness... Tecumseh...
Couch... Pottersville...
Caulfield... Udall...
Hardenville... Rover...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3650 9256 3674 9238 3679 9209 3679 9162
3673 9115 3650 9118
TIME...MOT...LOC 2040Z 198DEG 29KT 3641 9224 3633 9182 3625 9166
HAIL...1.25IN
WIND...60MPH
$$
Terry2 follow-up statements
127
WWUS53 KSGF 092058
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
358 PM CDT Fri Apr 9 2021
MOC153-092108-
/O.CAN.KSGF.SV.W.0025.000000T0000Z-210409T2130Z/
Ozark MO-
358 PM CDT Fri Apr 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OZARK COUNTY IS
CANCELLED...
The storms which prompted the warning have weakened. Therefore, the
warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
south central Missouri.
LAT...LON 3651 9208 3670 9198 3679 9191 3679 9162
3673 9115 3650 9118 3650 9163
TIME...MOT...LOC 2058Z 197DEG 29KT 3654 9212 3647 9176 3639 9160
$$
MOC091-149-092130-
/O.CON.KSGF.SV.W.0025.000000T0000Z-210409T2130Z/
Howell MO-Oregon MO-
358 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN HOWELL AND OREGON COUNTIES...
At 358 PM CDT, severe thunderstorms were located along a line
extending from Bakersfield to 6 miles east of Sturkie to 7 miles
north of Cherokee Village, moving north at 35 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...
West Plains... Grand Gulf State Park...
Thayer... Alton...
South Fork... Koshkonong...
Brandsville... Lanton...
Myrtle... Wilderness...
Couch... Rover...
Moody...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3651 9208 3670 9198 3679 9191 3679 9162
3673 9115 3650 9118 3650 9163
TIME...MOT...LOC 2058Z 197DEG 29KT 3654 9212 3647 9176 3639 9160
HAIL...1.25IN
WIND...60MPH
$$
Terry397
WWUS53 KSGF 092125
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
425 PM CDT Fri Apr 9 2021
MOC091-149-092135-
/O.EXP.KSGF.SV.W.0025.000000T0000Z-210409T2130Z/
Howell MO-Oregon MO-
425 PM CDT Fri Apr 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN HOWELL AND OREGON
COUNTIES WILL EXPIRE AT 430 PM CDT...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
south central Missouri.
LAT...LON 3651 9208 3670 9198 3679 9191 3679 9162
3673 9115 3650 9118 3650 9163
TIME...MOT...LOC 2125Z 198DEG 29KT 3673 9205 3666 9169 3658 9153
$$
TerryThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 2:34 PM CDT | Special Weather Statement | SGF | McDonald | 26 min |
| Apr 9, 2:54 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Stone, Taney | 51 min |
| Apr 9, 2:58 PM CDT | Special Weather Statement | SGF | Newton | 32 min |
| Apr 9, 3:19 PM CDT | Special Weather Statement | SGF | Ozark | 26 min |
| Apr 9, 3:24 PM CDT | Special Weather Statement | SGF | Newton | 36 min |
| Apr 9, 3:29 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Lawrence, Stone | 46 min |
| Apr 9, 3:48 PM CDT | Special Weather Statement | SGF | Jasper | 27 min |
| Apr 9, 3:52 PM CDT | Severe Thunderstorm Warning | SGF | Jasper, Newton | 38 min |
| Apr 9, 3:54 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Lawrence | 39 min |
| Apr 9, 4:03 PM CDT | Special Weather Statement | SGF | Christian | 27 min |
| Apr 9, 4:18 PM CDT | Severe Thunderstorm Warning | SGF | Jasper | 42 min |
| Apr 9, 4:24 PM CDT | Severe Thunderstorm Warning | SGF | Howell, Oregon, Shannon | 30 min |
| Apr 9, 4:32 PM CDT | Special Weather Statement | SGF | Greene, Jasper, Lawrence | 28 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.