A line of strong to severe thunderstorms moved through the Ozarks producing scattered reports of wind damage.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS SGF wrote it up.
A line of strong to severe thunderstorms moved through the Ozarks producing scattered reports of wind damage.
The local office's own words before the first event, 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 the first event at Sep 27, 1:19 PM CST, 1 hour 23 minutes earlier.
Area Forecast Discussion National Weather Service Springfield MO 219 PM CDT Sun Sep 27 2020 .SHORT TERM...(This evening through Tonight) A cold front was entering the Ozarks this afternoon from the northwest, forcing an area of deep convection along this feature. Showers and thunderstorms will eventually become widespread in nature, and impact nearly all locations across the region. A few of the most intense storms will be capable of producing damaging wind gusts up to 60 mph and large hail. Instability continues to tick up this afternoon as a belt of 2000 j/kg mixed layer cape evolves across southwest Missouri by 22Z. With deep layer shear ranging from 30 to 40 knots, this combination will be capable of organizing a few storms. Some of the latest high resolution models actually have some low level cape evolving, however, very little low level helicity will be in play. We will be launching a 20z RAOB to provide the evening shift and users with a snapshot of our environment, and take another look at the low level cape/shear combination. For tonight, showers and thunderstorms will continue behind the front, eventually exiting south central Missouri by Monday morning. Much colder air will spread in behind the front, causing temperatures to fall into the 40s across most locations tonight. Look for rainfall amounts to range from 0.30 to 1.00 inch by early Monday morning. No flash flooding is expected at this time due to the progressive nature of the storms and the very dry antecedent conditions. .LONG TERM...(Monday through Sunday) Autumn air will spread in from the northwest, causing some of the coldest temperatures we've observed since April. For Monday, highs will struggle to warm out of the mid 60s. In addition to the colder weather, will come an extended period of dry conditions with no precipitation chances going from Monday through next weekend. This dry spell will be accompanied by a continental airmass with Canadian origin. Deep northwest flow will persist through the upcoming weekend, forcing another cold front to approach by Thursday. This will cool temperatures by a few degrees for Thursday into Friday. No freezing temperatures are expected this week, however we could see some reading into the upper 30s Thursday and Friday nights, especially in the eastern Ozarks. && .AVIATION...(For the 18Z TAFS through 18Z Monday afternoon) Pilots flying in and out of southwest Missouri can expect stormy weather late this afternoon and through the evening hours. Pilots will need to monitor radar trends as severe weather will be possible in some of the more intense storms. Showers and thunderstorms will likely linger into the late evening, and overnight period over some locations. Flight conditions will be lowered as storms directly impact airfields. A cold front approaching from the northwest is the main forcing mechanism with these storms, which will also cause surface winds to shift to the northwest later tonight and through tomorrow. Safe Travels. && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. && SHORT TERM...Cramer LONG TERM...Cramer AVIATION...Cramer
Hazardous Weather Outlook National Weather Service Springfield MO 156 PM CDT Sun Sep 27 2020 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-281900- 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- 156 PM CDT Sun Sep 27 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. Elevated lightning risk. Limited non thunderstorm wind risk. DISCUSSION... An episode of strong to severe thunderstorms is expected to occur over extreme southeast Kansas and the Missouri Ozarks late this afternoon and through the evening hours. The most intense storms will be capable of producing pea to golf ball sized hail along with damaging wind gusts up to 60 mph. Behind the front, northwest winds will gust between 20-30 MPH late tonight. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed later today or tonight for portions of extreme southeast Kansas and the Missouri Ozarks. && 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 Cramer
The Springfield radar (KSGF), 81 km away, was scanning. The volume nearest the first event began at 20:42 UTC.
7 thunderstorm wind, 1 lightning. Local standard time, as filed.
Large tree branches were downed by high winds and sheet metal was removed from a deck. A personal weather station recorded a 49 mph wind gust.
Several trees and large limbs were reported down and at least one power pole was snapped causing localized power outages.
Winds estimated at 60 mph downed several large branches, some of which caused minor damage to a vehicle.
Several trees were uprooted or broken and a barn suffered moderate roof and siding damage.
Multiple power outages were reported as power lines and poles were downed by high winds.
Several power lines were reported down in town. Scattered power outages occurred.
Lightning struck a utility pole causing a transformer to fail and power outages.
A large tree was downed onto a power line causing power outages.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2020Every state in 2020This day in weather historyWarnings in Missouri, September 2020
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 917871, 917872, 917873, 917874, 917875, 917876, 917834, 917877.