A possible wake low caused an isolated report of wind damage behind an area of convection.
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The episode as NWS SGF wrote it up.
A possible wake low caused an isolated report of wind damage behind an area of convection.
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 18, 11:39 AM CST, 51 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 1239 PM CDT Wed Sep 18 2013 .MESOSCALE DISCUSSION... Issued at 1238 PM CDT WED SEP 18 2013 Not much has changed over the past few hours. The region is still feeling the influence of a weak shortwave aloft, while in the lower levels isentropic upglide is aiding large scale lift. Diurnal heating and differential heating boundaries will play an increasing role heading into this afternoon. The atmosphere remains unstable and the thermodynamic profile continues to support MLCAPE increasing to around 1500 J/kg (a little higher where more sunshine is observed). Have gone ahead and expanded higher PoPs through the rest of the afternoon, particularly in areas north of highway 60 and east of highway 65, as this region should observe the greatest concentration of activity. Additional scattered development will be possible elsewhere. && .SHORT TERM...(Today and Tonight) Issued at 215 AM CDT WED SEP 18 2013 A few showers lingered across the eastern Ozarks early this morning within a region of weak 850 MB warm air and moisture advection, and isentropic upglide. Low level warm air advection will begin in earnest today as a warm front lifts north across the Ozarks and a southerly flow becomes established. Models continue to show some convection breaking out today which seems to be overdone. However the passage of a minor disturbance along with weak isentropic upglide and diurnal destabilization could support isolated showers and thunderstorms mainly across south central Missouri. Expect more warming today particularly across southeastern Kansas and southwestern Missouri where there will be more sunshine. .LONG TERM...(Thursday through Tuesday) Issued at 215 AM CDT WED SEP 18 2013 A progressive upper trough will makes its way from the Rockies into the Plains on Thursday while the associated cold front sags southward across the Midwest and central Plains. A warm and breezy day is in store Thursday across the Ozarks and Osage Plains Thursday ahead of the front. Temperatures will climb well into the 80s with some readings near 90 degrees near the Missouri Kansas border. Isolated diurnally driven convection cannot be ruled out mainly across the south central Missouri. Showers and thunderstorms will increase from the northwest Thursday night as the cold front approaches. The front and associated rainfall will reach the Interstate 44 corridor early Friday morning then push across far southern Missouri during the day Friday. Showers and embedded thunderstorms along and behind the front will overspread the remainder of the Ozarks Friday morning. The clouds and rainfall along with a developing northerly wind will keep temperatures in the 70s on Friday. Rainfall will diminish from the northwest Friday afternoon and end across the entire area by Friday evening. An upper level ridge will transition into the central U.S. this weekend while surface high pressure builds across the region. This will result in spectacular weather as we head into the fall season. Dry and seasonably warm temperatures will continue into next week. && .AVIATION...(For the 18Z TAFS through 18Z Thursday Afternoon) Issued at 1238 PM CDT WED SEP 18 2013 Area aerodromes will continue to dodge scattered shower and thunderstorm activity for the remainder of this afternoon. SGF and BBG will be most prone to observing this activity, though the greatest concentration of rainfall should focus on areas to the east and north of those aerodromes. Additional scattered activity will remain possible through the afternoon in a moist and unstable airmass. This activity should subside/shift east this evening with VFR conditions expected into Thursday morning. A modest low level jet will produce a bout of low level wind shear at JLN/SGF. Will need to monitor for the risk of convective development Thursday morning at SGF/BBG. Confidence is low at this time, however there does not appear to be much holding the atmosphere back from quickly developing activity. && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. && MESOSCALE...Gagan SHORT TERM...Foster LONG TERM...Foster AVIATION...Gagan
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE SPRINGFIELD MO 1256 PM CDT WED SEP 18 2013 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-191800- 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- 1256 PM CDT WED SEP 18 2013 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 LIGHTNING RISK. DISCUSSION... SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE OUTLOOK AREA THROUGH THIS AFTERNOON. OCCASIONAL CLOUD TO GROUND LIGHTNING WILL BE THE MAIN HAZARD. A LOCALIZED WIND GUST TO 45 MPH WILL BE POSSIBLE WITH A FEW STORMS. NO SEVERE WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. SHOWERS AND THUNDERSTORMS WILL OVERSPREAD THE OUTLOOK AREA THURSDAY NIGHT AND FRIDAY AS A COLD FRONT MOVES ACROSS THE REGION. NO ORGANIZED SEVERE WEATHER IS EXPECTED...BUT STRONG STORMS WITH FREQUENT LIGHTNING...HEAVY RAINFALL AND GUSTY WINDS WILL BE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT. && THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE) GAGAN
The national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
There was an isolated report of strong winds with a possible wake low. The strong winds flipped over and damage a dock on the east side of Pomme de Terre Lake near the Cooper Cove Resort. The strong winds was behind the convection.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2013Every state in 2013This day in weather historyWarnings in Missouri, September 2013
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: 471317.