Alert archive / Kansas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 238, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Aug 15, 2020, 4:46 PM CDT for Cherokee County, Kansas. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2020, 4:46 PM CDT (21:46 UTC)
- Expired
- Aug 15, 2020, 5:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Cherokee County, KS
The radar
The Tulsa radar (KINX), 128 km from the middle of the area, began a volume at 21:45 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, 9.8 hours before the alert went out and 98 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
- 2022 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 15, 3:05 PM CDT, 1 hour 41 minutes earlier.
Area forecast discussion, Aug 15, 3:05 PM CDT, 1 hour 41 minutes before
Area Forecast Discussion National Weather Service Springfield MO 305 PM CDT Sat Aug 15 2020 .SHORT TERM...(This evening through Sunday) Issued at 242 PM CDT Sat Aug 15 2020 Expecting isolated to perhaps scattered convection near the Arkansas/Missouri border and in the far southwest CWA (far southeast Kansas and far SW Missouri). The convection is in response to an outflow boundary moving S-SW across the area and a cold front currently along the northern CWA border that will continue to move south. Current surface based CAPE is analyzed to be 4,500-5,500 J/kg and shear is very limited ahead of the boundaries. Limited moisture along with the weak shear will keep storms isolated and short lived, but with the instability in place we could see some brief strong to severe storms. Convection will diminish this evening, leaving a pleasant night and day Sunday. Lows tonight will be in the low to mid 60s with Sunday seeing sunny skies and highs in the mid 80s. Not only will Sunday be cooler, but also drier with dew points 15-20 degrees lower than today. .LONG TERM...(Sunday Night through Saturday) Issued at 242 PM CDT Sat Aug 15 2020 Not carrying any precip chances through this period and not seeing any chances for significant precip through the week. High temperatures will be warmest on Monday in the mid 80s to lower 90s, then in the mid to upper 80s the rest of the week. Afternoon dew points will be in the mid 50s to low 60s through the period, making conditions even more comfortable under mostly clear skies. Overnight low temperatures will be in the upper 50s to mid 60s. && .AVIATION...(For the 18Z TAFS through 18Z Sunday afternoon) Issued at 1240 PM CDT Sat Aug 15 2020 A cold front moving through will switch winds to a northerly direction and bring chances for showers and storms later this afternoon and evening. Greatest chances for storms are at KJLN, with chances being too limited elsewhere to include in the forecast at this time. Otherwise, VFR conditions are expected. && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. && SHORT TERM...Titus LONG TERM...Titus AVIATION...Titus
Hazardous weather outlook, Aug 15, 2:04 PM CDT, 2 hours 42 minutes before
Hazardous Weather Outlook National Weather Service Springfield MO 204 PM CDT Sat Aug 15 2020 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-161915- Bourbon-Crawford-Cherokee-Benton-Morgan-Miller-Maries-Vernon- St. Clair-Hickory-Camden-Pulaski-Phelps-Barton-Cedar-Polk-Dallas- Laclede-Texas-Dent-Jasper-Dade-Greene-Webster-Wright-Newton- Lawrence-Christian-Douglas-Howell-Shannon-McDonald-Barry-Stone- Taney-Ozark-Oregon- 204 PM CDT Sat Aug 15 2020 This Hazardous Weather Outlook is for portions of the Missouri Ozarks and extreme southeast Kansas. .DAY ONE...This Afternoon and Tonight. Weather hazards expected... Limited hail risk. Limited thunderstorm wind damage risk. Limited lightning risk. Limited excessive heat risk. DISCUSSION... A few isolated thunderstorms will be possible along and south of Interstate 44 today, with potential for an isolated strong to severe thunderstorm. Hail to the size of quarters and winds to 60 mph are possible with any isolated severe storms. Most locations will remain dry. Heat index values in the mid 90s to low 100s will continue this afternoon, mainly over southern and western portions of the area. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight. && More detailed information can be accessed at: http://www.weather.gov/sgf/sitrep This product in graphical format...along with other weather... hydrological and climate information...at http://www.weather.gov/sgf Titus
In the hours before
Special weather statement, Aug 15, 3:40 PM CDT, 1 hour 6 minutes before
Special Weather Statement National Weather Service Springfield MO 340 PM CDT Sat Aug 15 2020 MOZ088-152115- Jasper MO- 340 PM CDT Sat Aug 15 2020 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN JASPER COUNTY UNTIL 415 PM CDT... At 340 PM CDT, Doppler radar was tracking a strong thunderstorm near Oronogo, or 9 miles north of Joplin, moving southeast at 20 mph. Penny size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Northern Joplin... Carthage... Webb City... Carl Junction... Oronogo... Carterville... Airport Drive... Alba... Purcell... Asbury... Neck City... Brooklyn Heights... Waco... Oakland Park... This includes Interstate 49 between mile markers 37 and 38. PRECAUTIONARY/PREPAREDNESS ACTIONS... This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3731 9461 3731 9446 3710 9429 3710 9462 TIME...MOT...LOC 2040Z 324DEG 19KT 3723 9451 Rothstein
Special weather statement, Aug 15, 4:18 PM CDT, 28 minutes before
Special Weather Statement National Weather Service Springfield MO 418 PM CDT Sat Aug 15 2020 MOZ088-093-152145- Jasper MO-Newton MO- 418 PM CDT Sat Aug 15 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN NEWTON AND SOUTHEASTERN JASPER COUNTIES UNTIL 445 PM CDT... At 418 PM CDT, Doppler radar was tracking a strong thunderstorm near Diamond, or 9 miles south of Carthage, moving southeast at 25 mph. Nickel size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Carthage... Granby... Diamond... Fidelity... Reeds... This includes the following highways... Interstate 44 between mile markers 15 and 27. Interstate 49 between mile markers 36 and 40. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the weather situation closely. Listen for possible warnings and be prepared to take appropriate action should severe weather threaten. This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service. && LAT...LON 3713 9438 3718 9421 3700 9409 3692 9430 TIME...MOT...LOC 2118Z 335DEG 20KT 3705 9425 DSA
Local storm report, Aug 15, 4:27 PM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
427 PM CDT SAT AUG 15 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0421 PM HAIL 2 W CRESTLINE 37.17N 94.74W
08/15/2020 E0.70 INCH CHEROKEE KS PUBLIC
EAST OF COLUMBUS.
&&
MBLocal storm report, Aug 15, 4:31 PM CDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
431 PM CDT SAT AUG 15 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0425 PM HAIL 3 SSE LAWTON 37.18N 94.62W
08/15/2020 E1.75 INCH CHEROKEE KS PUBLIC
A MIXTURE OF HAIL RANGING FROM NICKELS UP TO
GOLF BALLS ON HIGHWAY YY 3 MILES WEST OF
CARL JUNCTION AT THE STATE LINE.
&&
MBLocal storm report, Aug 15, 4:36 PM CDT, 10 minutes before
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</html>Local storm report, Aug 15, 4:46 PM CDT, 0 minutes before
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<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 8:58 AM CDT | Severe Thunderstorm Warning | SGF | Cedar, Hickory, St. Clair | 30 min |
| Aug 15, 3:40 PM CDT | Special Weather Statement | SGF | Jasper | 35 min |
| Aug 15, 4:07 PM CDT | Severe Thunderstorm Warning | SGF | Jasper | 38 min |
| Aug 15, 4:18 PM CDT | Special Weather Statement | SGF | Newton | 27 min |
| Aug 15, 4:34 PM CDT | Severe Thunderstorm Warning | SGF | Jasper, Newton | 41 min |
| Aug 15, 4:55 PM CDT | Special Weather Statement | SGF | Newton | 50 min |
| Aug 15, 5:18 PM CDT | Special Weather Statement | SGF | Newton | 42 min |
| Aug 15, 5:24 PM CDT | Severe Thunderstorm Warning | SGF | Cherokee | 51 min |
| Aug 15, 6:52 PM CDT | Special Weather Statement | SGF | Cherokee | 38 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2020Every severe thunderstorm warning in 2020
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.