Tag: (apr

Official

SPC Apr 26, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0348 AM CDT Sat Apr 26 2025 Valid 291200Z - 041200Z ...DISCUSSION... ...Day 4/Tuesday - West Texas to the Northeast... Moderate instability will be present along an elongated frontal zone from the southern Plains to the Northeast on Tuesday. Modest shear along the frontal zone will support some organization into multicell clusters and perhaps supercells. A greater severe weather threat will exist across the eastern Great Lakes where forcing and shear will be strongest as a 75 knot mid-level jet streak crosses southern Ontario. Another focused zone
Official

SPC Apr 26, 2025 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0759 PM CDT Fri Apr 25 2025 Valid 260100Z - 261200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR EAST-CENTRAL NM INTO THE TX SOUTH PLAINS... ...SUMMARY... Severe thunderstorms with potential for large to very large hail, isolated severe gusts, and a few tornadoes remain possible this evening from eastern New Mexico into the Texas South Plains and Permian Basin. ...Southern High Plains vicinity... Several supercells are ongoing this evening from eastern NM into the TX Panhandle, South Plains, and Permian Basin. Moderate to
Official

SPC Apr 25, 2025 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0730 AM CDT Fri Apr 25 2025 Valid 251300Z - 261200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF FAR EASTERN NM...THE TX PANHANDLE...WEST TEXAS AND SOUTHWEST OK... ...SUMMARY... A concentrated area of severe thunderstorms is forecast over the Texas South Plains and vicinity during the late afternoon and evening. Large hail and localized wind damage appears likely. ...Synopsis... Recent satellite imagery shows a cyclone west off the central West Coast, with a shortwave trough progressing through its base into southern CA.
Official

SPC Apr 25, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0354 AM CDT Fri Apr 25 2025 Valid 281200Z - 031200Z ...DISCUSSION... ...Day 4/Mon - Southern Plains to Upper Midwest... A strong mid-level jet streak will move rapidly northeastward from the Southwest to the Upper Midwest on Monday. As this occurs, a surface low will deepen and move from the northern Plains to the northern Great Lakes. Strong southwesterly lower tropospheric flow will advect high theta-e air northward across the Midwest and into parts of the Upper Midwest. Broken to scattered cloudcover will support surface heating and
Official

SPC Apr 24, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0347 AM CDT Thu Apr 24 2025 Valid 271200Z - 021200Z ...DISCUSSION... ...Day 4/Sun - Great Plains... An upper trough over the southwestern U.S. early Sunday will develop east, becoming oriented from the central Rockies to the Lower CO Valley by Monday morning. As the trough develops east, a band of enhanced southwesterly mid/upper flow will overspread NM northeast to the Dakotas. A lee surface cyclone will deepen over western SD/NE, eventually shifting east into eastern SD by early Monday. Southerly low-level flow will transport Gulf moisture
Official

SPC Apr 23, 2025 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0254 PM CDT Wed Apr 23 2025 Valid 232000Z - 241200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN/CENTRAL PLAINS... ...SUMMARY... Scattered strong to severe thunderstorms are forecast over parts of the southern/central Plains today and tonight, with large hail and damaging winds possible. ...20z Update... The previous forecast generally remains on track with only minor adjustments needed. A slight westward expansion of 5% hail/wind probabilities across southeast CO where convective initiation is underway along the Raton Mesa upstream of