Alert archive / Missouri / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 125, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Sep 4, 2021, 6:45 PM CDT for Howell County, Missouri. It was in force for 45 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
- Sep 4, 2021, 6:45 PM CDT (23:45 UTC)
- Expired
- Sep 4, 2021, 7:30 PM CDT
- In force
- 45 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Howell County, MO
The radar
The Springfield radar (KSGF), 134 km from the middle of the area, began a volume at 23:48 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, 11.8 hours before the alert went out and 162 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
- 980 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
103
WUUS53 KSGF 042345
SVRSGF
MOC091-050030-
/O.NEW.KSGF.SV.W.0125.210904T2345Z-210905T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
645 PM CDT Sat Sep 4 2021
The National Weather Service in Springfield has issued a
* Severe Thunderstorm Warning for...
Central Howell County in south central Missouri...
* Until 730 PM CDT.
* At 644 PM CDT, a severe thunderstorm was located 9 miles southwest
of Willow Springs, moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
West Plains... Pomona...
Peace Valley... Siloam Springs...
White Church...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3679 9211 3680 9210 3688 9210 3695 9207
3687 9167 3662 9173
TIME...MOT...LOC 2344Z 291DEG 21KT 3687 9205
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
DSA2 follow-up statements
379 WWUS53 KSGF 050017 SVSSGF Severe Weather Statement National Weather Service Springfield MO 717 PM CDT Sat Sep 4 2021 MOC091-050030- /O.CON.KSGF.SV.W.0125.000000T0000Z-210905T0030Z/ Howell MO- 717 PM CDT Sat Sep 4 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR CENTRAL HOWELL COUNTY... At 717 PM CDT, a severe thunderstorm was located over West Plains, moving southeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... West Plains... PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 3675 9201 3685 9192 3674 9170 3662 9173 TIME...MOT...LOC 0017Z 302DEG 18KT 3672 9191 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ DSA
305
WWUS53 KSGF 050033
SVSSGF
Severe Weather Statement
National Weather Service Springfield MO
733 PM CDT Sat Sep 4 2021
MOC091-050042-
/O.EXP.KSGF.SV.W.0125.000000T0000Z-210905T0030Z/
Howell MO-
733 PM CDT Sat Sep 4 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HOWELL COUNTY HAS
EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire. However gusty
winds of 40 to 50 mph are still possible with this thunderstorm.
LAT...LON 3675 9201 3685 9192 3674 9170 3662 9173
TIME...MOT...LOC 0032Z 291DEG 21KT 3669 9182
$$
DSAThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 11:47 PM CDT | Flash Flood Warning | SGF | Vernon | 6 hr |
| Sep 4, 2:17 AM CDT | River Flood Warning | SGF | Vernon | 5 days |
| Sep 4, 2:17 AM CDT | River Flood Warning | SGF | Bates, Vernon | 3 days |
| Sep 4, 2:17 AM CDT | River Flood Warning | SGF | St. Clair | 6 days |
| Sep 4, 5:45 AM CDT | Areal Flood Advisory | SGF | Cedar, St. Clair, Vernon | 6 hr |
| Sep 4, 4:40 PM CDT | Special Weather Statement | SGF | Christian | 35 min |
| Sep 4, 6:14 PM CDT | Special Weather Statement | SGF | Howell, Shannon | 46 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.