Area Forecast Discussion
Issued by NWS Springfield, MO
Issued by NWS Springfield, MO
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784 FXUS63 KSGF 111849 AFDSGF Area Forecast Discussion National Weather Service Springfield MO 149 PM CDT Tue Jun 11 2024 .KEY MESSAGES... - Warm-up starts on Wednesday with temperatures reaching the 90s by Thursday into early next week. Heat index values generally in the mid 90s to around 103. - Low end thunderstorm chances on Thursday night(15-30%) as a front sags south into the area. && .SHORT TERM /THROUGH WEDNESDAY NIGHT/... Issued at 149 PM CDT Tue Jun 11 2024 Synoptic overview and current conditions: Another chamber of commerce day across the Missouri Ozarks and extreme southeast Kansas. Water vapor imagery and upper level analysis show an upper level shortwave tracking across the upper Mississippi valley region with another shortwave entering the west coast of British Columbia. At the surface, high pressure has shifted east of the area and we are seeing a return to a light southerly wind. A cold front was pushing east across the upper Mississippi valley region, but will not reach this far south. Temperatures were in the mid 70s to low 80s with dew points in the mid to upper 50s across the area with some scattered fair weather cumulus over the eastern half of the CWA. Tonight: The upper shortwave and surface front will continue to slide east into the Great Lakes region. Light southerly flow will continue in the low levels here with a northwest flow aloft. The main storm track has shifted well north of the area to around the U.S. Canadian border. Lows tonight will be in the 50s in the eastern Ozarks to the low 60s in the west. Wednesday: The flow aloft will become more westerly and southerly winds will begin to increase slightly. Some low level warm advection will take place with temperatures warming back into the mid to upper 80s. && .LONG TERM /THURSDAY THROUGH MONDAY/... Issued at 149 PM CDT Tue Jun 11 2024 Thursday: Another upper level shortwave and speed max will track across the upper Mississippi valley region while an upper level ridge axis begins to amplify over the Rockies. Enough of a dip in the upper trough will bring some northwesterly flow east of the ridge into the area and may track this next front a bit further south. The front should stay north of the area during the day with CAPE values increasing into the 2500-3500 j/kg ahead of the front in central MO by late in the day. Highs during the day will be in the upper 80s to low 90s and with moisture increasing ahead of the front, we could see heat index values in the mid 90s to around 101. Thursday night: As this front slides south on Thursday night, we may see some scattered convection in central MO with the front, with a marginal risk of severe storms with hail to the size of quarters and 60 mph winds the main risks. It looks like the main risk will remain up in central MO with little to no development expected further south. Friday through Monday: Upper ridge axis begins to shift northeast into the area with a very large thermal cap in place from around 850mb to 700 mb. 850mb temperatures will be in the 18-21 degree range and 700mb temperatures in the 10-13 degree range. Despite the strong afternoon/evening instability where CAPES will be over 3500 j/kg, the thermal cap should keep generally dry and warm conditions over the area. NBM ensemble temperatures are in pretty decent agreement with upper 80s to low 90s for temperatures with heat index values in the mid 90s to around 103. Will start messaging this in our graphical products this afternoon. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1220 PM CDT Tue Jun 11 2024 For the 18z TAFS, high pressure remains over the area and was shifting to the east allowing for a light southerly wind to develop over the region. Some cumulus were developing over the area but should remain at 4500 feet or higher during the afternoon. Otherwise, some high cloud cover will be possible into the evening with a clear sky developing by Wednesday morning. VFR conditions are expected through the period. && .CLIMATE... Issued at 501 AM CDT Mon Jun 10 2024 Record High Temperatures: June 16: KSGF: 97/1952 KJLN: 95/2016 Record High Minimum Temperatures: June 15: KSGF: 74/2022 June 16: KSGF: 75/2022 June 17: KSGF: 76/2016 && .SGF WATCHES/WARNINGS/ADVISORIES... KS...None. MO...None. && $$ SHORT TERM...Lindenberg LONG TERM...Lindenberg AVIATION...Lindenberg CLIMATE...Camden