398 FXUS63 KGLD 032024 AFDGLDArea Forecast Discussion National Weather Service Goodland KS 224 PM MDT Fri Oct 3 2025
.KEY MESSAGES...
- Above normal temperatures and dry conditions will persist through Saturday, with highs in the upper 80s to low 90s.
- Strong southerly winds potentially gusting to 55 mph remain forecast Saturday across most of the area. Some blowing dust is also possible with visibility reductions near source regions.
- A few severe storms capable of wind gusts up to 65 mph and blowing dust are also possible Saturday evening currently favoring western portions of the area.
- Breezy to strong southerly winds, above normal temperatures and low relative humidity (15-25%) will also create elevated to locally critical fire weather conditions on Friday and Saturday. Outdoor burning is not advised.
- Cooler, with normal to below normal temperatures Sunday through the middle portion of next week
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.SHORT TERM /THROUGH SATURDAY NIGHT/... Issued at 154 PM MDT Fri Oct 3 2025
The area is starting to feel the effects of the troughing across the western CONUS as 850mb and 700mb jets are starting to increase. As this occurs winds will gradually start increasing across the area this afternoon with gusts of 20-35 mph currently forecast. The windiest conditions are currently forecast across eastern portions of the forecast area due to the jet being strongest. The southerly winds are also helping warm the temperatures as well with many locales in the mid to upper 80s across the forecast area. Western portions are forecast to see dewpoints fall as well as downsloping winds become more prevalent resulting in the potential for some locally critical fire weather conditions. Winds across this area are however forecast to be around 20-25 mph helping limit overall fire weather concerns. Overnight the low level jets associated with the trough are forecast to continue to increase. Some minor pressure falls across the area should continue to keep winds mixed with wind gusts around 30-35 mph continuing throughout the night. The continued mixing and winds continuing are forecast to keep overnight lows from falling to much as well as much of the area is currently not forecast to fall below 55-60 degrees.
Saturday, continues to have the makings of a potential multi hazard day as the trough continues to get closer to the area. Confidence is high to very high in wind gusts of 35-45 mph occurring across most if not all of the forecast area as the 850mb and 700mb jets remain across the area. GFS continues to be the most aggressive with the strength of the winds with a solid 42-48 knot winds throughout the mixing layer. Other guidance is in the 35-40 knot range throughout the mixing layer. GFS typically does do the best in windier scenarios so have tailored the forecast towards that so the potential is there for 50-55 mph winds and would not be surprised if some isolated 60 mph wind gusts were to occur.
With the wind, blowing dust will be a concern as well as we have had multiple warm and breezy days and little rainfall over the past week. NASASPORT continues to show drying of the 0-10cm soil moisture falling into the mid teens to low 20s across most of the area. At this time not anticipating widespread blowing dust concerns as the winds may not be strong enough to get numerous plumes of blowing dust going and any that do get going should rise into the atmosphere given high mixing heights and no capping level present via the 2- 2.5cm lapse rates. Still can`t rule out some localized brownout conditions near source regions but current thinking is that more of a haze will be present. This haze also may affect air quality as well.
Elevated fire weather will also be a concern as well given the winds. I did bring down dew points to some of the lower guidance as forecast soundings show drier air just above the surface that should be easily mixed down. With this and being on the warmer side of guidance am still struggling to get humidity values lower than the upper teens to low 20s. I did take into consideration the forecasted winds to perhaps equal out not quite being to the 15% threshold for Red Flag Warnings but fuel partners stated that with fuels still being so marginal fires still may not rapidly spread so opted to hold off on any fire products.
Next part of the day will be a cold front moving towards the area which is forecast to lead to some showers and storm potential. The cold front will also lead to a wind shift which would make the response to any fire more difficult. Showers and storms with the cold front are forecast to move into eastern Colorado around 6-7pm MT. Continue to think that damaging winds up to 65 mph will be the main threat with any storm given the wind field in place and steep lapse rates. There is potential however which does have a history of happening that convective winds sometimes do not materialize given the strong synoptic winds and winds actually weakening with the storms. Some hail threat may materialize as well if we can get a long lived, strong updraft as wind shear will be very strong which would keep frozen droplets aloft longer especially given a shallow freezing level around 12,000 feet. However do have concerns that the strength of the wind shear will shear apart updrafts before large hail can become a concern given meager MUCAPE of around 500 j/kg. The other aspect of the storms is that if any outflow can emanate then blowing dust may again be a concern potentially in the form of haboob. Any severe threat should be ended no later than 12am MT. Winds will gradually diminish through the night as we lose influence of the cold front.
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.LONG TERM /SUNDAY THROUGH FRIDAY/... Issued at 154 PM MDT Fri Oct 3 2025
Cold air advection is forecast to continue through the day Sunday in wake of the cold front. Breezy winds are forecast to continue as well but not to the extent of Sunday as the 850 and 700mb jets are forecast to weaken as we lose synoptic influence; wind gusts of 25- 30 mph are still possible however. High temperatures are currently forecast in the low 70s to low 80s across the area but may be a little bit cooler if the front moves through quicker. A quick moving shortwave during the evening and overnight hours across northern portions of the area may lead to some showers and storms but severe weather is not anticipated with that activity. A severe threat across eastern portions of the area may also develop but will be highly dependent of the positioning of the cold front.
Through the remainder of the week mainly zonal flow is forecast to ensue continuing more normal temperatures for October standards. A few surface highs are also forecast to nudge into the area Tuesday and Wednesday mornings which may yield some strong radiational cooling potential which may lead to some frost concerns. Towards the latter portion of the week starting to see some signals for a similar pattern to what is ongoing right now which may lead to another risk for warmer temperatures and windy conditions towards the latter part of the week and into the weekend but still remains a bit to far out to nail down details at this time.
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.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1054 AM MDT Fri Oct 3 2025
Wind will be the main story for the 24-36 hours or so. Southerly winds are forecast to gradually increase this afternoon gusting to around 25-30 knots with the strongest more likely for MCK where a stronger jet streak is located. A low level jet will continue to strengthen this evening and overnight leading to continued breezy to gusty winds and low level wind shear as the jet aloft strengthens to 50-60 knots. As the nocturnal inversion breaks around 14-15Z stronger wind gusts around 40-45 knots are forecast to begin mixing to the surface for each terminal. Some dust may be possible for each terminal leading to either visibility reductions or a ceiling due to haze towards the latter portion of this TAF period and into the next which may impact flight categories, confidence is not high enough at this time to include in the TAF however.
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.FIRE WEATHER... Issued at 202 PM MDT Fri Oct 3 2025
Elevated to locally critical fire weather conditions are forecast to continue through the remainder of the afternoon with the main concern for locally critical conditions across eastern Colorado. The wind is forecast to continue through the night and strengthen at the surface Saturday morning as the nocturnal inversion breaks around 14-15Z. High confidence in wind gusts of 35-45 mph and sustained winds of 25-35 mph; would also not be surprised if wind gusts around 55 mph can occur if enough mixing can be achieved. For the forecast have went a little lower on dew points as forecast soundings show drier air just above the surface that should have no problem mixing down. The biggest issue is that fuels are still marginal and there is some green in vegetation as well that may help keep dew points a tad bit further increased. Given the high likelihood of strong winds did still contemplate fire weather products but per fuel partner feedback with myself being on the lower end of dew points and still struggling to get forecasted RH to fall out of the upper teens to low 20s with the marginal nature of the fuels that it would still be difficult to justify fire weather products at this time. Now this may change if additional guidance continues to come in lower with dew points.
Showers ands storms are forecast to develop along a cold front which may support some dry lightning potential but confidence in lighting coverage is a bit lower due to meager amounts of elevated CAPE in place. These storms may also be capable of wind gusts up to 65 mph and blowing dust as well which if a fire were to start would make responding to a fire very difficult.
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.GLD WATCHES/WARNINGS/ADVISORIES... KS...None. CO...None. NE...None.
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SHORT TERM...Trigg LONG TERM...Trigg AVIATION...Trigg FIRE WEATHER...Trigg
NWS GLD Office Area Forecast Discussion