Area Forecast Discussion
Issued by NWS Topeka, KS
Issued by NWS Topeka, KS
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478 FXUS63 KTOP 160909 AFDTOP Area Forecast Discussion National Weather Service Topeka KS 309 AM CST Mon Feb 16 2026 .KEY MESSAGES... - Temperatures return to well above normal early this week with some record warmth possible. - A Fire Weather Watch is in effect for Tuesday afternoon. - Elevated fire danger is expected Tuesday through Thursday. - Low precipitation chances return late this week alongside near normal temperatures. && .DISCUSSION... Issued at 240 AM CST Mon Feb 16 2026 Early this morning water vapor satellite imagery showed a broad upper trough across the the eastern Pacific off the US west coast. A downstream upper level ridge was located across the southern and central Plains. An upper level trough was located along the east coast of the US. The 7Z surface map showed a lee surface trough across eastern CO, extending southward into northeast NM. Winds were southerly across the CWA, with slightly stronger winds speeds in the 15 to 20 MPH range across north central KS. Temperatures were in the mid to upper 40s, with some lower 50 degree readings across north central KS. Today through Tuesday: The H5 trough across the eastern Pacific will move onshore across the the western US. The southern stream section of the H5 trough across southern CA will lift northeast across CO into western NE and SD on Tuesday. The lee trough axis/Pacific front will shift east into western KS Tuesday afternoon. Look for a nice warm up with southerly winds this afternoon, that will help high temperatures to warm into the mid to upper 60s, with some 70 degree readings across the south central and southwest counties of the CWA. Tuesday will be windy ahead of the surface trough axis/Pacific front across western KS. Winds will increase to 20 to 30 MPH with some gusts up to 45 MPH during the afternoon hours. Strong low-level WAA will help high temperatures to reach the mid to upper 70s in most areas. The far southeast counties may only see highs in the lower 70s, if the PBL does not mix as deep, due to residual moisture advection. Tuesday night through Thursday: Tuesday night, the main H5 trough will move onshore across southern CA. the H5 trough across NE/SD will shift northeast into MN. The stronger ascent will occur well northeast of the CWA across northeast NE into IA and MN. A Pacific cold front will move east across the area late Tuesday night. Winds will become westerly and a drier airmass will spread across the CWA. Wednesday, winds will become light westerly, as the lee surface trough deepens across eastern CO during the afternoon hours. By late afternoon winds will become southwesterly to south but will probably remain under 10 KTS during the late afternoon hours. Highs will only be slight cooler, with mid 60s north and upper 60s to around 70 south. The southern CA H5 trough will shift east into the Four Corners Region by 00Z THU. Thursday, the H5 trough will lift northeast across eastern CO into northwest KS, then into south central NE. Once again the stronger ascent will be north of the CWA across NE. The lee surface low will move eastward along the KS/NE border. Several numerical models have shown the surface low taking slightly farther south, across the northern counties of the CWA. Southerly surface winds in the morning will veer to the southwest and west by afternoon. A surface cold front will push southward behind the surface low and move southeast across the CWA during the mid and late afternoon hours. Highs ahead of the cold front across east central KS will reach the lower to mid 60s. Highs behind the front across north central KS will only reach the upper 40s to lower 50s. Thursday night through Monday: The extended range models have similar solutions. The GFS looks to be more amplified with a longer wave length H5 trough across east central US Over the weekend. The GFS shows more low-level CAA Sunday into Monday. The H5 trough across south central NE will shift northeast into southern IA and amplify. The northeast counties may see some wrap around showers late Thursday night. These showers may mix with snow and before ending, may change all to snow. I`m not expecting any accumulations across northeast KS. All the extended range models show an H5 trough digging southeast out central Canada Saturday and amplifying across the Great Lakes States Sunday morning and forming an amplified H5 trough across the eastern US. The GFS model is most amplified with the eastern US H5 trough. Expect cooler temperatures to end the week and through the weekend. Highs will be in the 40s, which is near normal. && .AVIATION /06Z TAFS THROUGH 06Z TUESDAY/... Issued at 1040 PM CST Sun Feb 15 2026 VFR conditions still expected. Will need to monitor surface to low-level winds over the next several hours for potential LLWS with some speeds going calm in recent hours. Moderate south- southwest winds with some gusts should become the norm by 16Z and diminish with diurnal trends around 00Z. && .FIRE WEATHER... Updated at 303 AM CST MON Feb 16 2026 Tuesday: Expect extreme to very high fire danger Tuesday afternoon across northeast KS. A fire weather watch has been issued from 12 noon to 7 pm Tuesday. South-southwest surface winds will increase to 20 to 30 MPH with gusts of 30 to 40 MPH during the afternoon hours of Tuesday. Deeper mixing of the Planetary Boundary Layer will offset residual moisture, allowing minimum RHs to drop to 20 to 30 percent across the western half of the CWA. The eastern half of the CWA will see minimum RHs in the 30 to 44 percent range. If we get a mid and high level overcast, then the boundary layer may not mix as deep. The GFDI fire wx guidance shows pockets greater than 50 percent across much of the CWA. Tuesday afternoon may provide an environment for wildfires, based more on the strong wind gusts then RHs under 20 percent. Wednesday: The airmass across the CWA will be drier but winds will be light at 5 to 15 MPH from the west into the early afternoon hours and then become southwesterly during the late afternoon hours but wind speeds may remain under 10 KTS. Minimum RHs will will be in the 18 to 22 percent range. If the winds are stronger then forecast Wednesday afternoon, then Wednesday afternoon could be a critical fire weather day. Thursday: There`s a lot of uncertainty in a track of a surface low across the central Plains on Thursday. If the sfc low tracks east along the NE border, then winds may increase to 15 to 25 MPH with gusts to 35 MPH from the southwest and west during the afternoon hours, before a surface cold front pushes southeast across the CWA during the mid and late afternoon hours. Northwest winds will still be gusty but cooler temperatures will increase minimum RHs during the afternoon hours. If the surface low tracks east along I- 70, then the air mass across the northern counties will be cooler with east to northeast winds and there may just be a small window of southwest to westerly winds that may gusts up to 30 MPH across the south central and southeast counties of the CWA. However, the wind shifts through the day may make fires difficult to control even if extreme or very high fire danger is not met. && .TOP WATCHES/WARNINGS/ADVISORIES... Fire Weather Watch from Tuesday afternoon through Tuesday evening for KSZ008-KSZ009-KSZ010-KSZ011-KSZ012-KSZ020-KSZ021- KSZ022-KSZ023-KSZ024-KSZ026-KSZ034-KSZ035-KSZ036-KSZ037-KSZ038- KSZ039-KSZ040-KSZ054-KSZ055-KSZ056-KSZ058-KSZ059. && $$ DISCUSSION...Griesemer AVIATION...Picha FIRE WEATHER...Gargan