Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO
Issued by NWS Kansas City/Pleasant Hill, MO
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999 FXUS63 KEAX 122045 AFDEAX Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 345 PM CDT Wed Jun 12 2024 .KEY MESSAGES... - Hot and muggy conditions starting today continuing tomorrow. Triple digit heat index values anticipated Thursday. - Strong to severe storms are possible Thursday evening into Friday morning. Main threats include very large hail, damaging winds, and localized flooding. - High temperatures look to consistently remain in the 90s from Saturday through mid next week. && .DISCUSSION... Issued at 342 PM CDT Wed Jun 12 2024 In the upper levels, there is currently a zonal pattern over the region with west-northwest flow over the area. At the surface, there is a trough over the ND/MN border with high pressure to the southeast over the Ark-LA-Tex area. Winds are out of the south- southwest pushing warm, moist air from the Gulf over the area. Expect warm, muggy conditions today as high temperatures reach the low 90s and dew point temperatures reach the mid 60s. Tomorrow heat index values continue to increase as the surface high remains to our southeast and continued southerly flow pushes warm, moist air over the region. High temperatures will be even warmer than today`s reaching the mid 90s. Heat index values will range to 100-105 degrees Fahrenheit as the dew point temperatures creep into the 70s. A heat advisory has already been issued and is in effect from 18Z Thursday to 01Z Friday. A mid level shortwave is expected to move to the northeast of the area over IA. At the surface, the associated frontal boundary is expected to push south into the area Thursday evening. Showers and thunderstorms are expected to develop along and ahead of the boundary. Due to the environment being very unstable, strong to severe storms are expected. As previously mentioned, 70 degree dew point temperatures, CAPE values exceeding 4,000 J/kg, and bulk shear values around 40 knots suggest the potential for very large hail and damaging winds. PWAT values are well above 1.5 inches which show the potential for heavy rainfall. Localized flooding could be an issue if storms last in duration or begin to train. Friday, ridging pushes into the area from the southwest keeping temperatures warm. There will be a few chances for showers and storms continuing through the weekend. High temperatures in the 90s are expected to return Saturday and persist through next Wednesday. There is a potential for additional heat advisories to be issued, but we will continue to monitor conditions. && .AVIATION /18Z TAFS THROUGH 18Z THURSDAY/... Issued at 1240 PM CDT Wed Jun 12 2024 VFR conditions are expected to remain through the TAF period. Winds will remain southerly and occasionally gust to 20 mph. Winds will weaken this evening and increase again late tomorrow morning. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...Heat Advisory from 1 PM to 8 PM CDT Thursday for MOZ001-002- 004-011>014-020>023-028>031-037-038-043. KS...Heat Advisory from 1 PM to 8 PM CDT Thursday for KSZ025-057- 060-102>105. && $$ DISCUSSION...Pesel AVIATION...Collier