Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 17, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Mar 17, 2021, 7:06 PM CDT for Christian County, Greene County, Webster County, Missouri. It was in force for 54 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
- Mar 17, 2021, 7:06 PM CDT (00:06 UTC)
- Expired
- Mar 17, 2021, 8:00 PM CDT
- In force
- 54 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Christian County, MO, Greene County, MO, Webster County, MO
The radar
The Springfield radar (KSGF), 39 km from the middle of the area, began a volume at 00:11 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 |
|---|---|---|---|
| Mar 17, 7:10 PM CDT | HAIL 0.88 | Ozark, MO | |
| Mar 17, 7:10 PM CDT | HAIL 1 | 1 W Ozark, MO | QUARTER SIZED HAIL REPORTED VIA MPING. |
| Mar 17, 7:30 PM CDT | HAIL 0.88 | 2 Ese Turners, MO |
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 |
|---|---|---|---|
| Mar 17, 2:00 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.1 hours before the alert went out and 69 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
- 283 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 461 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 305 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.3
The text
As transmitted.
259
WUUS53 KSGF 180006
SVRSGF
MOC043-077-225-180100-
/O.NEW.KSGF.SV.W.0017.210318T0006Z-210318T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
706 PM CDT Wed Mar 17 2021
The National Weather Service in Springfield has issued a
* Severe Thunderstorm Warning for...
Southwestern Webster County in southwestern Missouri...
Christian County in southwestern Missouri...
Southeastern Greene County in southwestern Missouri...
* Until 800 PM CDT.
* At 706 PM CDT, severe thunderstorms were located along a line
extending from Springfield to 6 miles northwest of Taneyville,
moving northeast 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.
* Locations impacted include...
Springfield... Nixa...
Ozark... Marshfield...
Rogersville... Strafford...
Sparta... Fremont Hills...
Fordland... Brookline...
Oldfield... Turners...
Elkhead... Bruner...
Selmore... Keltner...
Northview... Christian Center...
Garrison... Chadwick...
This includes Interstate 44 near mile marker 71, and between mile
markers 78 and 101.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 PM CDT for southwestern
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3681 9316 3721 9340 3738 9288 3707 9289
3707 9291 3681 9291
TIME...MOT...LOC 0006Z 239DEG 28KT 3719 9329 3683 9310
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
Wise2 follow-up statements
370
WWUS53 KSGF 180034
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
734 PM CDT Wed Mar 17 2021
MOC043-077-225-180100-
/O.CON.KSGF.SV.W.0017.000000T0000Z-210318T0100Z/
Webster MO-Christian MO-Greene MO-
734 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHWESTERN WEBSTER...EASTERN CHRISTIAN AND SOUTHEASTERN GREENE
COUNTIES...
At 734 PM CDT, severe thunderstorms were located along a line
extending from near Strafford to 11 miles west of Ava, moving
northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Marshfield... Rogersville...
Strafford... Sparta...
Fordland... Oldfield...
Turners... Elkhead...
Bruner... Keltner...
Northview... Garrison...
Chadwick...
This includes Interstate 44 between mile markers 84 and 100.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 PM CDT for southwestern
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3681 9303 3727 9319 3738 9288 3707 9289
3707 9291 3681 9291
TIME...MOT...LOC 0034Z 240DEG 28KT 3730 9306 3692 9286
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
Wise584
WWUS53 KSGF 180046
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
746 PM CDT Wed Mar 17 2021
MOC043-077-180056-
/O.CAN.KSGF.SV.W.0017.000000T0000Z-210318T0100Z/
Christian MO-Greene MO-
746 PM CDT Wed Mar 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CHRISTIAN AND
SOUTHEASTERN GREENE COUNTIES 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 900 PM CDT for southwestern
Missouri.
LAT...LON 3708 9290 3709 9296 3709 9306 3727 9306
3727 9308 3731 9308 3738 9288 3707 9289
TIME...MOT...LOC 0046Z 239DEG 28KT 3734 9297 3696 9277
$$
MOC225-180100-
/O.CON.KSGF.SV.W.0017.000000T0000Z-210318T0100Z/
Webster MO-
746 PM CDT Wed Mar 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR SOUTHWESTERN WEBSTER COUNTY...
At 746 PM CDT, severe thunderstorms were located along a line
extending from near Marshfield to 6 miles west of Ava, moving
northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Marshfield... Rogersville...
Fordland... Northview...
This includes Interstate 44 between mile markers 91 and 100.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 PM CDT for southwestern
Missouri.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3708 9290 3709 9296 3709 9306 3727 9306
3727 9308 3731 9308 3738 9288 3707 9289
TIME...MOT...LOC 0046Z 239DEG 28KT 3734 9297 3696 9277
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
WiseThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:24 PM CDT | Severe Thunderstorm Warning | SGF | Douglas, Webster, Wright | 66 min |
| Mar 17, 7:29 PM CDT | Flash Flood Warning | SGF | Barry, Christian, Dade, Greene, Lawrence, Polk and 2 more | 4 hr |
| Mar 17, 7:43 PM CDT | Tornado Warning | SGF | Douglas | 32 min |
| Mar 17, 8:36 PM CDT | Special Weather Statement | SGF | Laclede, Wright | 39 min |
| Mar 17, 9:27 PM CDT | Areal Flood Warning | SGF | McDonald, Newton | 8 hr |
| Mar 17, 10:01 PM CDT | Areal Flood Warning | SGF | Lawrence, Newton | 8 hr |
| Mar 17, 11:19 PM CDT | Areal Flood Warning | SGF | Barry, Lawrence, Stone | 7 hr |
| Mar 17, 11:21 PM CDT | Areal Flood Warning | SGF | Barry, Christian, Dade, Greene, Lawrence, Polk and 2 more | 8 hr |
| Mar 17, 11:28 PM CDT | Areal Flood Warning | SGF | Benton, Cedar, Hickory, St. Clair | 8 hr |
| Mar 18, 12:34 AM CDT | River Flood Warning | SGF | Cedar | 47 hr |
| Mar 18, 9:45 AM CDT | River Flood Warning | SGF | Jasper | 37 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.