762 ACUS11 KWNS 090025 SWOMCD SPC MCD 090025 IAZ000-MOZ000-NEZ000-090230- Mesoscale Discussion 1550 NWS Storm Prediction Center Norman OK 0725 PM CDT Wed Jul 08 2026 Areas affected...Eastern Nebraska into western Iowa Concerning...Severe Thunderstorm Watch 473... Valid 090025Z - 090230Z The severe weather threat for Severe Thunderstorm Watch 473 continues. SUMMARY...A transition from semi-discrete supercells to a linear storm mode has occurred and will promote an increase in severe winds downstream into eastern Nebraska and western Iowa. DISCUSSION...Over the past hour, KGID and KOAX imagery has shown a convective mode transition from predominately semi-discrete/clustered supercells to a linear band. Additionally, convective development continues to develop west/southwestward along a frontal boundary, and will likely merge with the developing band within the next hour or so. This activity will continue to propagate into the best regional thermodynamic environment, which features MLCAPE near 2500 J/kg and low-level lapse rates are near 7.5 C/km. This thermodynamic will favor further updraft development and cold pool development, especially considering adequate deep-layer bulk shear in place across the warm sector (the KOAX VWP continues to sample 0-6 km bulk shear values of around 30 knots). Consequently, some uptick in severe wind potential appears probable in the next couple of hours across eastern NE and possibly into western IA. The wind threat may be modulated to some degree by weak low-level winds sampled by the KOAX VWP, which may favor outflow-dominant convection. However, embedded swaths of severe winds behind the outflow will still be possible. ..Moore.. 07/09/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...EAX...OAX...GID... LAT...LON 40679823 41019828 41559760 41739717 41909582 41689541 41309528 40989531 40729542 40499564 40419596 40279659 40679823 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  259 ACUS11 KWNS 090033 SWOMCD SPC MCD 090033 COR IAZ000-MOZ000-NEZ000-090230- Mesoscale Discussion 1550 NWS Storm Prediction Center Norman OK 0733 PM CDT Wed Jul 08 2026 Areas affected...Eastern Nebraska into western Iowa Concerning...Severe Thunderstorm Watch 473... Valid 090033Z - 090230Z CORRECTED FOR MISSING WORD The severe weather threat for Severe Thunderstorm Watch 473 continues. SUMMARY...A transition from semi-discrete supercells to a linear storm mode has occurred and will promote an increase in severe winds downstream into eastern Nebraska and western Iowa. DISCUSSION...Over the past hour, KGID and KOAX imagery has shown a convective mode transition from predominately semi-discrete/clustered supercells to a linear band. Additionally, convective development continues to develop west/southwestward along a frontal boundary, and will likely merge with the developing band within the next hour or so. This activity will continue to propagate into the best regional thermodynamic environment, which features MLCAPE near 2500 J/kg and low-level lapse rates are near 7.5 C/km. This thermodynamic environment will favor further updraft development and cold pool development, especially considering adequate deep-layer bulk shear in place across the warm sector (the KOAX VWP continues to sample 0-6 km bulk shear values of around 30 knots). Consequently, some uptick in severe wind potential appears probable in the next couple of hours across eastern NE and possibly into western IA. The wind threat may be modulated to some degree by weak low-level winds sampled by the KOAX VWP, which may favor outflow-dominant convection. However, embedded swaths of severe winds behind the outflow will still be possible. ..Moore.. 07/09/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...EAX...OAX...GID... LAT...LON 40679823 41019828 41559760 41739717 41909582 41689541 41309528 40989531 40729542 40499564 40419596 40279659 40679823 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN  269 ACUS11 KWNS 090053 SWOMCD SPC MCD 090052 KSZ000-NEZ000-COZ000-090215- Mesoscale Discussion 1551 NWS Storm Prediction Center Norman OK 0752 PM CDT Wed Jul 08 2026 Areas affected...Parts of eastern CO into southwest NE/northwest KS Concerning...Severe Thunderstorm Watch 472... Valid 090052Z - 090215Z The severe weather threat for Severe Thunderstorm Watch 472 continues. SUMMARY...A severe-wind threat may spread eastward through the evening. Downstream WW issuance is possible. DISCUSSION...As of 0045 UTC, convection is relatively disorganized across northeast CO, though there has been some tendency for expanding outflow and a transition to more of a cluster or linear mode. As this convection spreads eastward, it will encounter richer low-level moisture and stronger instability (with MLCAPE increasing above 2000 J/kg), but there will also be a tendency for increasing CINH with the onset of nocturnal cooling. If a sufficiently robust cold pool can evolve this evening, then a storm cluster and possibly a small MCS may be able to overcome the near-surface stability and propagate eastward through the evening, with a threat for at least localized severe gusts (potentially near/above 75 mph due to favorable lapse rates and DCAPE). Moist, low-level easterly flow impinging upon the eastward-moving outflow renders this scenario plausible, and downstream watch issuance is possible as convection approaches the eastern extent of WW 472. ..Dean/Thompson.. 07/09/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GID...LBF...DDC...GLD...BOU... LAT...LON 38600124 38650242 38710325 38950357 39600364 40240352 40810315 40940172 40970109 40900072 40780049 40520027 40070016 39680022 39240035 38990052 38600124 MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN