Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 42, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at May 6, 2021, 12:37 PM CDT for Oregon County, Missouri. It was in force for 23 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
- May 6, 2021, 12:37 PM CDT (17:37 UTC)
- Expired
- May 6, 2021, 1:00 PM CDT
- In force
- 23 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Oregon County, MO
The radar
The Springfield radar (KSGF), 186 km from the middle of the area, began a volume at 17:37 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 nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 5.6 hours before the alert went out and 211 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1926 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
563
WUUS53 KSGF 061737
SVRSGF
MOC149-061800-
/O.NEW.KSGF.SV.W.0042.210506T1737Z-210506T1800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
1237 PM CDT Thu May 6 2021
The National Weather Service in Springfield has issued a
* Severe Thunderstorm Warning for...
Oregon County in south central Missouri...
* Until 100 PM CDT.
* At 1237 PM CDT, severe thunderstorms were located along a line
extending from 9 miles east of Alton to near Thayer, moving
southeast 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...
Grand Gulf State Park... Thayer...
Alton... Koshkonong...
Myrtle... Wilderness...
Couch...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3651 9167 3656 9168 3665 9167 3680 9126
3672 9112 3650 9113
TIME...MOT...LOC 1737Z 313DEG 41KT 3673 9124 3656 9164
HAIL...1.00IN
WIND...60MPH
$$
Raberding2 follow-up statements
801
WWUS53 KSGF 061749
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
1249 PM CDT Thu May 6 2021
MOC149-061800-
/O.CON.KSGF.SV.W.0042.000000T0000Z-210506T1800Z/
Oregon MO-
1249 PM CDT Thu May 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM CDT
FOR SOUTHERN OREGON COUNTY...
At 1248 PM CDT, severe thunderstorms were located along a line
extending from 8 miles northwest of Gatewood to Mammoth Spring State
Park, moving southeast at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Thayer... Myrtle...
Couch...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3651 9154 3660 9158 3670 9122 3671 9112
3650 9113 3651 9146
TIME...MOT...LOC 1748Z 271DEG 37KT 3665 9122 3650 9151
HAIL...1.00IN
WIND...60MPH
$$
Raberding495
WWUS53 KSGF 061759
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
1259 PM CDT Thu May 6 2021
MOC149-061809-
/O.EXP.KSGF.SV.W.0042.000000T0000Z-210506T1800Z/
Oregon MO-
1259 PM CDT Thu May 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN OREGON COUNTY WILL
EXPIRE AT 100 PM CDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 3651 9154 3660 9158 3670 9122 3671 9112
3650 9113 3651 9146
TIME...MOT...LOC 1759Z 270DEG 41KT 3683 9099 3668 9128
$$
RaberdingThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 12:30 PM CDT | Special Weather Statement | SGF | Oregon | 30 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.