907  
FXUS63 KLBF 180522  
AFDLBF  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NORTH PLATTE NE  
1222 AM CDT THU SEP 18 2025  
   
KEY MESSAGES  
 
- A SLOW MOVING DISTURBANCE WILL CONTINUE TO TRACK ACROSS THE  
AREA BRINGING EXPANSIVE CLOUD COVER AND RAIN/WEAK  
THUNDERSTORM POTENTIAL THROUGH EARLY FRIDAY.  
 
- TEMPERATURES WARM THIS WEEKEND WITH A RETURN TO 70S AND 80S BY SUNDAY.  
 
- DRIER WEATHER RETURNS EARLY NEXT WEEK WITH WARMER TEMPERATURES  
LIKELY CONTINUING THROUGH THE END OF THE VALID FORECAST  
PERIOD.  
 
 
   
SHORT TERM /THROUGH TONIGHT/  
 
ISSUED AT 343 PM CDT WED SEP 17 2025  
 
WEDNESDAY AFTERNOON/EVENING...UPPER-LEVEL LOW CONTINUES TO SPIN JUST  
NORTH OF THE FORECAST AREA. THIS FURTHER NORTH PLACEMENT HAS ALLOWED  
FOR THE BROAD STRATUS SHIELD TO LIFT NORTH AND PROMOTE MORE SUNSHINE  
ACROSS OUR SOUTHERN ZONES. AS A RESULT, TEMPERATURES RANGE FROM THE  
LOW 70S IN THE SOUTH TO LOW 60S IN THE NORTH. THE BREAKS IN THE  
CLOUDS FOR ROUGHLY THE SOUTHERN HALF OF THE FORECAST AREA HAS ALSO  
PROMOTED SOME STEEPENING LOW-LEVEL LAPSE RATES. AS A RESULT, CUMULUS  
IN THE AREA APPEARS MORE AGITATED IN RESPONSE TO MODEST INSTABILITY.  
SOME SUSTAINED CONVECTION HAS DEVELOPED NEAR THE FRONT RANGE TO THE  
WEST AND THOUGH POTENTIAL EXISTS FOR A FEW ISOLATED THUNDERSTORMS  
OVER WESTERN NEBRASKA, SEVERE WEATHER IS NOT ANTICIPATED. ANY  
THUNDERSTORM ACTIVITY SHOULD QUICKLY SUBSIDE WITH THE LOSS OF  
DAYTIME HEATING AND RETURN TO PRIMARILY SHOWERY ACTIVITY FOR THE  
OVERNIGHT HOURS. CAN'T RULE OUT PATCHY FOG TONIGHT ACROSS OUR NORTH,  
WHERE LOW-LEVEL MOISTURE REMAINS IN PLACE BENEATH THE STRATUS. AT  
THIS TIME, A FEW LOCATIONS COULD SEE MORE SIGNIFICANT VISIBILITY  
RESTRICTIONS, PERHAPS BRIEFLY TOUCHING BELOW 1SM, BUT CONFIDENCE IN  
THIS OCCURRING IS LOW. LOWS TONIGHT WILL FALL INTO THE 50S.
 
   
LONG TERM /THURSDAY THROUGH WEDNESDAY/  
 
ISSUED AT 343 PM CDT WED SEP 17 2025  
 
THURSDAY...AS A WEAK LOW PRESSURE CENTER TAKES SHAPE EARLY FRIDAY  
MORNING OVER CENTRAL SOUTH DAKOTA, WRAP AROUND PRECIPITATION SHOULD  
WORK INTO OUR WESTERN ZONES THROUGH THE DAYTIME. THE CAA WITHIN THE  
NORTHERLY FLOW SHOULD ONCE AGAIN HOLD TEMPERATURES BACK WITH DAYTIME  
HIGHS ONLY IN THE 60S AND LOW 70S. PRECIPITATION LOOKS LARGELY  
UNEVENTFUL WITH ONLY LIGHT QPF AND NO SEVERE WEATHER ANTICIPATED.  
BREEZY NORTHWEST WINDS BENEATH CLOUDY SKIES AND SPOTTY PRECIPITATION  
WILL GIVE AN EARLY FALL FEEL, BRISK AND DREARY. PRECIPITATION SHOULD  
WANE THROUGH THE LATTER HALF OF THE DAY AS UPPER-LEVEL LOW SHIFTS  
EAST. THIS SHOULD ALLOW DRY CONDITIONS TO PREVAIL ACROSS THE AREA BY  
LATE EVENING.  
 
FRIDAY...A MESOHIGH WILL PASS THROUGH THE AREA AND ALLOW  
SOUTHWESTERLY FLOW TO RETURN AS IT DEPARTS. THIS WILL BE REINFORCED  
BY A WARM FRONT LIFTING NORTH AND EAST. THE RESULT WILL BE QUICKLY  
WARMING TEMPERATURES WITH AFTERNOON HIGHS REACHING THE 70S AND LOWER  
80S ACROSS THE AREA. THIS FRONTAL BOUNDARY WILL STALL ACROSS  
NORTHERN NEBRASKA AND SOUTHERLY FLOW PERSISTING INTO THE BOUNDARY  
WILL PROMOTE A DESTABILIZING AIRMASS. A FEW SOLUTIONS SUGGEST THE  
POTENTIAL FOR THUNDERSTORMS AS MUCAPE CLIMBS TO AROUND 1000 J/KG  
WITH ADEQUATE DEEP LAYER SHEAR. FOR NOW, CONFIDENCE IN STORM  
DEVELOPMENT IS LOW GIVEN LACK OF STRONGER LOW-LEVEL FORCING AND  
SUBSIDENCE ALOFT FROM INCREASING HEIGHTS. STILL THOUGH, WILL HAVE TO  
MONITOR THE NEED TO INCREASED SPATIAL COVERAGE OF POPS THAN WHAT THE  
CURRENT FORECAST CALLS FOR WHICH IS LIMITED TO ~20% (SLIGHT CHANCE)  
FAVORING CENTRAL AND EASTERN NEBRASKA.  
 
SATURDAY/SUNDAY...TEMPERATURES WILL CONTINUE TO CLIMB THROUGH THE  
WEEKEND AS FLOW ALOFT FAVORS A MORE ZONAL PATTERN AND UPPER RIDGING  
BEGINS TO FORM OVER THE DESERT SOUTHWEST. THE FRONTAL BOUNDARY FROM  
FRIDAY WILL LIKELY LINGER IN THE AREA AND SOUTHERLY FLOW INTO THIS  
WILL SUPPORT INCREASING SURFACE MOISTURE. AS MOISTURE POOLS AND  
DAYTIME HIGHS CLIMB FURTHER INTO THE 80S, WILL SEE A MODERATELY  
UNSTABLE AIRMASS DEVELOP ON THE SOUTHERN PERIPHERY OF STRONGER H5  
FLOW. THOUGH DEEP-LAYER SHEAR REMAINS MARGINAL, MUCAPE CLIMBING INTO  
THE 2000-3000 J/KG RANGE BEARS WATCHING. THOUGH THE STORM PREDICTION  
CENTER HAS NO OUTLOOK FOR THE DAY, BELIEVE THE THREAT FOR A STRONG  
OR SEVERE STORM BEARS WATCHING. ENSEMBLES REMAIN MUTED REGARDING  
POTENTIAL BUT HIGHER RESOLUTION GUIDANCE CONTINUES TO SIGNAL THE  
NEED TO MONITOR. SIMILAR CONDITIONS EXIST ON SUNDAY WITH MOIST  
SURFACE AIR SUPPORTING MODERATE INSTABILITY WITH MARGINAL SHEAR. THE  
THREAT FOR AFTERNOON THUNDERSTORMS BEARS WATCHING. AGAIN, CONFIDENCE  
IN STORM DEVELOPMENT IS LOW SO STAY TUNED.  
 
MONDAY AND BEYOND...A STRONG CLIPPER SYSTEM WILL DIVE SOUTHEAST  
SOMETIME EARLY NEXT WEEK WITH DETERMINISTIC SOLUTIONS DIFFERING ON  
TIMING AND PLACEMENT. FOR NOW, BELIEVE SOME MODEST IMPACTS IN TERMS  
OF PRECIPITATION ARE POSSIBLE. EPS QPF PROBABILITIES CLIMB SLIGHTLY  
FOR MONDAY THOUGH GEFS SOLUTIONS KEEPS ANY GREATER PROBABILITIES TO  
THE EAST. THEREAFTER THOUGH, AMPLIFYING RIDGE WILL SETTLE INTO THE  
GREAT BASIN AND SLOWLY TRANSLATE EAST. THIS WILL SUPPORT FURTHER  
INCREASES IN TEMPERATURES ACROSS THE REGION AND THE NBM 50TH  
PERCENTILE VALUES AND HIGHER SHOW POTENTIAL FOR A RETURN TO UPPER  
80S AND LOWER 90S. RECENT DETERMINISTIC OUTPUT DISPLAYS A COOL BIAS,  
LIKELY DUE TO RECENT COOLER TEMPERATURES, SO LATER FORECASTS WILL  
LIKELY EXHIBIT A WARMING TREND IN THE COMING DAYS.  
 
 
   
AVIATION /06Z TAFS THROUGH 06Z FRIDAY/  
 
ISSUED AT 1225 AM CDT THU SEP 18 2025  
 
LOW STRATUS WITH MVFR/IFR CIGS PERSISTS FOR TERMINALS IN THE  
SANDHILLS AND NORTHERN NEBRASKA THROUGH THE DAY THURSDAY AND  
INTO THE OVERNIGHT. IN ADDITION, PATCHY FOG WILL BE POSSIBLE  
THROUGH LATE FRIDAY MORNING ACROSS NORTHERN NEBRASKA, WITH  
PERIODS OF MVFR VISIBILITIES EXPECTED. FURTHER SOUTH, AT LEAST  
LOW-END VFR CIGS WILL PERSIST THROUGH MUCH OF THE VALID PERIOD.  
 
WINDS REMAIN NORTHWESTERLY THROUGH THE DAY THURSDAY, WITH GUSTS  
OF 20 TO 25KTS THURSDAY AFTERNOON.  
 
 
   
LBF WATCHES/WARNINGS/ADVISORIES  
 
NONE.  
 
 
 
 
 
SHORT TERM...NMJ  
LONG TERM...NMJ  
AVIATION...BROWN  
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