BBS: TELESC.NET.BR Assunto: DAY2SVR: Nws Storm Prediction Center Norman Ok De: COD Weather Processor Data: Fri, 29 May 2026 05:59:07 +0000 ----------------------------------------------------------- ACUS02 KWNS 290559 SWODY2 SPC AC 290557 Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1257 AM CDT Fri May 29 2026 Valid 301200Z - 311200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF WESTERN AND CENTRAL NEBRASKA INTO WESTERN AND SOUTHERN SOUTH DAKOTA... ...SUMMARY... Thunderstorms with large hail and severe wind gusts are expected on Saturday from parts of western and central Nebraska into southern and western South Dakota. Isolated severe gusts and hail will also be possible in the northern High Plains, and from parts of the central Plains into the southern High Plains. ...Western and Central Nebraska/Southern and Western South Dakota/Eastern Wyoming/Northeast Colorado/Southeast Montana... At mid-levels, a low will remain over southwestern Wyoming on Saturday, as a shortwave trough moves into the central High Plains. At the surface, a trough will deepen over the central and northern High Plains. Surface winds will be from a southeasterly direction over much of Nebraska and South Dakota, which will result in moisture advection throughout the day. By afternoon, surface dewpoints in the 60s F will contribute to moderate instability over much of the central Plains extending northwestward into the northern High Plains. Low-level convergence is forecast to become maximized near a well-developed dryline. In response, scattered thunderstorms are expected to develop near the dryline in the afternoon and move north and northeastward across western and central Nebraska into southern South Dakota. To the east of the dryline and near the moist axis, MLCAPE is forecast to increase into the 1500 to 3000 J/kg range by late afternoon. Forecast soundings at 00Z in west-central Nebraska suggest that 0-6 km shear will be in the 30 to 40 knot range with 700-500 mb lapse rates around 8 C/km. This will be favorable for supercells with large hail and severe wind gusts. The severe threat is expected to persist into the mid to late evening, as a cluster of strong to severe storms moves northeastward across central Nebraska and south-central South Dakota. Widely-spaced severe thunderstorms will also be possible across parts of southeast Montana, but instability is forecast to be weaker which will keep any severe threat more localized. ...Kansas/Oklahoma/West Texas... West-southwesterly mid-level flow will be located over much of the south-central U.S. on Saturday. At the surface, a sharply defined dryline is forecast to be located from central Kansas south-southwestward into western Oklahoma and west-central Texas. To the east of the dryline, surface dewpoints in the 60s F will contribute to moderate instability by afternoon. Along and to the east of much of the dryline, 0-6 km shear is forecast to be in the 30 to 40 knot range with 700-500 mb lapse rates near 8 C/km. This environment will support an isolated severe threat. Hail and strong wind gusts will be the primary hazards. Forcing is expected to be relatively weak which will keep storm coverage isolated. ..Broyles.. 05/29/2026 $$ = = = To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.28-Linux * Origin: Capitol City Online (1:2320/107) ----------------------------------------------------------- [Voltar]