Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 38, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Apr 28, 2021, 11:49 AM CDT for Howell County, Oregon County, Shannon County, Missouri. It was in force for 41 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
- Apr 28, 2021, 11:49 AM CDT (16:49 UTC)
- Expired
- Apr 28, 2021, 12:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Howell County, MO, Oregon County, MO, Shannon County, MO
The radar
The Springfield radar (KSGF), 170 km from the middle of the area, began a volume at 16:52 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 |
|---|---|---|---|
| Apr 28, 9:33 AM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 4.8 hours before the alert went out and 200 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
- 34 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1441 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
155
WUUS53 KSGF 281649
SVRSGF
MOC091-149-203-281730-
/O.NEW.KSGF.SV.W.0038.210428T1649Z-210428T1730Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
1149 AM CDT Wed Apr 28 2021
The National Weather Service in Springfield has issued a
* Severe Thunderstorm Warning for...
Southwestern Shannon County in south central Missouri...
Howell County in south central Missouri...
Oregon County in south central Missouri...
* Until 1230 PM CDT.
* At 1149 AM CDT, severe thunderstorms were located along a line
extending from near West Plains to 17 miles northeast of
Bakersfield to 7 miles northwest of Sturkie to 6 miles south of
Ott, 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...
West Plains... Grand Gulf State Park...
Ozark National Scenic Riverways...
Mountain View...
Thayer... Winona...
Alton... Birch Tree...
Pomona... South Fork...
Koshkonong... Brandsville...
Montier... Thomasville...
Peace Valley... Lanton...
Teresita... Myrtle...
Wilderness... Couch...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 PM CDT for south central
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3683 9198 3705 9180 3708 9122 3683 9123
3682 9113 3650 9114 3650 9199
TIME...MOT...LOC 1649Z 232DEG 37KT 3682 9188 3665 9188 3653 9196 3642
9211
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
Perez2 follow-up statements
088
WWUS53 KSGF 281717
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
1217 PM CDT Wed Apr 28 2021
MOC091-149-203-281730-
/O.CON.KSGF.SV.W.0038.000000T0000Z-210428T1730Z/
Shannon MO-Howell MO-Oregon MO-
1217 PM CDT Wed Apr 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR SOUTHWESTERN SHANNON...EASTERN HOWELL AND OREGON COUNTIES...
At 1217 PM CDT, severe thunderstorms were located along a line
extending from near Birch Tree to 9 miles northwest of Alton to 9
miles northwest of Thayer to 8 miles northeast of Sturkie, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Grand Gulf State Park... Ozark National Scenic Riverways...
Mountain View... Thayer...
Winona... Alton...
Birch Tree... Koshkonong...
Brandsville... Montier...
Thomasville... Peace Valley...
Lanton... Teresita...
Myrtle... Wilderness...
Couch... Rover...
Greer...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 PM CDT for south central
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3687 9175 3705 9174 3708 9122 3683 9123
3682 9113 3650 9114 3650 9187 3666 9177
TIME...MOT...LOC 1717Z 236DEG 42KT 3694 9154 3677 9154 3665 9162 3652
9174
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
Perez483
WWUS53 KSGF 281724
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
1224 PM CDT Wed Apr 28 2021
MOC091-281734-
/O.CAN.KSGF.SV.W.0038.000000T0000Z-210428T1730Z/
Howell MO-
1224 PM CDT Wed Apr 28 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HOWELL COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 300 PM CDT for south central
Missouri.
LAT...LON 3679 9168 3679 9166 3706 9165 3708 9122
3683 9123 3682 9113 3650 9114 3650 9167
TIME...MOT...LOC 1724Z 235DEG 36KT 3696 9149 3679 9149 3667 9157 3654
9169
$$
MOC149-203-281730-
/O.CON.KSGF.SV.W.0038.000000T0000Z-210428T1730Z/
Shannon MO-Oregon MO-
1224 PM CDT Wed Apr 28 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR SOUTHWESTERN SHANNON AND OREGON COUNTIES...
At 1224 PM CDT, severe thunderstorms were located along a line
extending from near Birch Tree to 8 miles northwest of Alton to 12
miles north of Mammoth Spring State Park to 8 miles west of Thayer,
moving northeast at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Grand Gulf State Park... Ozark National Scenic Riverways...
Thayer... Winona...
Alton... Birch Tree...
Koshkonong... Montier...
Thomasville... Teresita...
Myrtle... Wilderness...
Couch... Rover...
Greer...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 300 PM CDT for south central
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3679 9168 3679 9166 3706 9165 3708 9122
3683 9123 3682 9113 3650 9114 3650 9167
TIME...MOT...LOC 1724Z 235DEG 36KT 3696 9149 3679 9149 3667 9157 3654
9169
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
PerezThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 4:48 AM CDT | Special Weather Statement | SGF | Dade, Greene, Lawrence | 27 min |
| Apr 28, 8:01 AM CDT | Severe Thunderstorm Warning | SGF | Barry | 44 min |
| Apr 28, 8:25 AM CDT | Flash Flood Warning | SGF | Barry, McDonald | 6 hr |
| Apr 28, 8:27 AM CDT | Severe Thunderstorm Warning | SGF | Barry | 33 min |
| Apr 28, 8:46 AM CDT | Flash Flood Warning | SGF | Barry, Stone | 6 hr |
| Apr 28, 8:51 AM CDT | Severe Thunderstorm Warning | SGF | Stone | 39 min |
| Apr 28, 9:03 AM CDT | Tornado Warning | SGF | Stone | 27 min |
| Apr 28, 9:14 AM CDT | Tornado Warning | SGF | Taney | 31 min |
| Apr 28, 9:18 AM CDT | Severe Thunderstorm Warning | SGF | Stone, Taney | 42 min |
| Apr 28, 9:33 AM CDT | Flash Flood Warning | SGF | Christian, Taney | 6 hr |
| Apr 28, 9:37 AM CDT | Severe Thunderstorm Warning | SGF | Christian, Douglas, Ozark, Taney | 68 min |
| Apr 28, 9:43 AM CDT | Tornado Warning | SGF | Christian, Taney | 32 min |
| Apr 28, 9:55 AM CDT | River Flood Warning | SGF | Shannon | 44 hr |
| Apr 28, 9:55 AM CDT | River Flood Warning | SGF | Pulaski | 11 hr |
| Apr 28, 9:55 AM CDT | River Flood Warning | SGF | Stone | 10 hr |
| Apr 28, 9:55 AM CDT | River Flood Warning | SGF | McDonald | 23 hr |
| Apr 28, 9:55 AM CDT | River Flood Warning | SGF | Shannon | 51 hr |
| Apr 28, 10:14 AM CDT | Tornado Warning | SGF | Christian, Douglas, Webster | 31 min |
| Apr 28, 10:15 AM CDT | Flash Flood Warning | SGF | Douglas, Ozark, Taney, Webster, Wright | 6 hr |
| Apr 28, 10:21 AM CDT | Severe Thunderstorm Warning | SGF | Douglas, Howell, Ozark, Taney, Webster, Wright | 39 min |
| Apr 28, 10:24 AM CDT | Tornado Warning | SGF | Ozark | 36 min |
| Apr 28, 10:44 AM CDT | Flash Flood Warning | SGF | Douglas, Ozark | 6 hr |
| Apr 28, 10:58 AM CDT | Tornado Warning | SGF | Douglas, Ozark | 32 min |
| Apr 28, 11:12 AM CDT | Flash Flood Warning | SGF | Howell, Texas | 6 hr |
| Apr 28, 11:27 AM CDT | Severe Thunderstorm Warning | SGF | Wright | 33 min |
| Apr 28, 11:29 AM CDT | Severe Thunderstorm Warning | SGF | Douglas, Howell | 22 min |
| Apr 28, 12:01 PM CDT | Flash Flood Warning | SGF | Dent, Laclede, Phelps, Pulaski, Texas, Wright | 6 hr |
| Apr 28, 12:02 PM CDT | Tornado Warning | SGF | Howell, Oregon, Shannon | 28 min |
| Apr 28, 12:07 PM CDT | Flash Flood Warning | SGF | Oregon, Shannon | 6 hr |
| Apr 28, 12:30 PM CDT | Severe Thunderstorm Warning | SGF | Oregon, Shannon | 30 min |
| Apr 28, 1:48 PM CDT | Flash Flood Warning | SGF | McDonald | 6 hr |
| Apr 28, 2:09 PM CDT | Flash Flood Warning | SGF | McDonald | 6 hr |
| Apr 28, 2:29 PM CDT | Areal Flood Warning | SGF | Barry, Christian, Douglas, McDonald, Ozark, Stone and 2 more | 29 hr |
| Apr 28, 2:39 PM CDT | Areal Flood Warning | SGF | Douglas, Ozark, Webster, Wright | 24 hr |
| Apr 28, 3:45 PM CDT | Areal Flood Warning | SGF | Dent, Howell, Oregon, Phelps, Pulaski, Shannon and 1 more | 24 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.