Severe Storms

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0236 PM CDT Sat Jun 28 2025 Valid 291200Z - 301200Z A departing mid-level trough will aid in sustaining breezy northwest winds of 15-20 mph across the Interstate 80 corridor in southwest Wyoming Sunday. The winds overlapping with relative humidity in the 15-20 percent range amid a very dry fuelscape will support elevated fire weather conditions across southwest Wyoming. Otherwise, fire weather concerns across much of the western U.S. will be mitigated by a building upper-level ridge bringing warming temperatures and generally light, terrain-driven winds. ..Williams.. 06/28/2025 .PREV DISCUSSION... /ISSUED 0203 AM CDT Sat Jun 28 2025/ ...Synopsis... Upper ridging is forecast to steadily build over the West Coast Sunday, as weak troughing shifts eastward. As heights continue to rise, weakening the flow aloft over the northern Rockies, a cold front will move out of the Northwest ushering in a cooler and higher humidity air mass. Some residual mid-level flow will linger across WY and western CO Sunday, but surface winds are expected to be much weaker and will shift to northwesterly. The weaker winds, along with increasing humidity should limit broader fire-weather potential. Some localized dry and breezy conditions will remain possible over southwest WY, but widespread fire-weather concerns are not expected. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 PM CDT Sat Jun 28 2025 Valid 301200Z - 011200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF THE OHIO VALLEY...MIDWEST...AND MID-ATLANTIC... ...SUMMARY... Scattered strong to severe thunderstorms are possible across parts of the Ohio Valley, Midwest and the Mid-Atlantic on Monday. ...Synopsis... An amplifying midlevel trough and accompanying jet streak will advance eastward across the Midwest and Great Lakes on Monday. At the same time, a related cold front will overspread the OH Valley through the afternoon. ...Ohio Valley and Midwest... Widely scattered thunderstorms are expected along/ahead of the eastward-moving cold front in the OH Valley, aided by large-scale ascent preceding the midlevel trough. While midlevel lapse rates will be modest over the warm sector, diurnal heating of a moist air mass (lower 70s dewpoints) will still contribute to moderate-strong surface-based buoyancy (highest over the lower OH Valley). Around 30 kt of deep-layer shear and the destabilizing air mass will favor organized multicell clusters capable of producing wind damage through the afternoon. Farther west, large-scale ascent in the left-exit region of the midlevel jet will promote isolated thunderstorms across the Midwest during the afternoon. Sufficient post-frontal moisture beneath steep midlevel lapse rates, and elongated/straight hodographs (30-40 kt of deep-layer shear), will support isolated severe hail in the stronger cells. ...Mid-Atlantic... Despite weak deep-layer flow/shear, a few wet microbursts will be possible east of the Appalachians during the afternoon, where steep low-level lapse rates will develop amid deep/rich tropospheric moisture (PW around 2 inches). ..Weinman.. 06/28/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 PM CDT Sat Jun 28 2025 Valid 301200Z - 011200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF THE OHIO VALLEY...MIDWEST...AND MID-ATLANTIC... ...SUMMARY... Scattered strong to severe thunderstorms are possible across parts of the Ohio Valley, Midwest and the Mid-Atlantic on Monday. ...Synopsis... An amplifying midlevel trough and accompanying jet streak will advance eastward across the Midwest and Great Lakes on Monday. At the same time, a related cold front will overspread the OH Valley through the afternoon. ...Ohio Valley and Midwest... Widely scattered thunderstorms are expected along/ahead of the eastward-moving cold front in the OH Valley, aided by large-scale ascent preceding the midlevel trough. While midlevel lapse rates will be modest over the warm sector, diurnal heating of a moist air mass (lower 70s dewpoints) will still contribute to moderate-strong surface-based buoyancy (highest over the lower OH Valley). Around 30 kt of deep-layer shear and the destabilizing air mass will favor organized multicell clusters capable of producing wind damage through the afternoon. Farther west, large-scale ascent in the left-exit region of the midlevel jet will promote isolated thunderstorms across the Midwest during the afternoon. Sufficient post-frontal moisture beneath steep midlevel lapse rates, and elongated/straight hodographs (30-40 kt of deep-layer shear), will support isolated severe hail in the stronger cells. ...Mid-Atlantic... Despite weak deep-layer flow/shear, a few wet microbursts will be possible east of the Appalachians during the afternoon, where steep low-level lapse rates will develop amid deep/rich tropospheric moisture (PW around 2 inches). ..Weinman.. 06/28/2025 Read more