Severe Storm Outlook Narrative (AC)
Issued by NWS
Issued by NWS
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050 ACUS01 KWNS 282001 SWODY1 SPC AC 281959 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0259 PM CDT Tue May 28 2024 Valid 282000Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER WESTERN TEXAS... ...SUMMARY... Severe storms capable of damaging winds and large hail remain possible over a small part of the upper Texas Coast into southwest Louisiana for a few more hours. Another area of significant severe weather potential will develop across west Texas this afternoon and evening. ...Texas... A severe MCS producing locally significant damaging gusts and large hail continues to move toward the upper TX Coast, and extends into southwest LA as of 20Z. The very moist and unstable air mass ahead of this activity will support damaging winds and periods of hail before moving offshore later this afternoon. Activity may also build southwestward toward the middle TX Coast. For more information on this area see MCD 1049. To the west, a large area of outflow has pushed across much of central Texas, but sufficient PWAT remains to support destabilization through the afternoon as heating occurs. For more information across western TX, see MCDs 1046 1047 1048. ...NE NM into southeast CO and western KS... The air mass continues to destabilize due to heating, with storms beginning to form from Raton to Pueblo. Easterly surface winds below weak westerlies will lengthen hodographs sufficiently to support cells capable of large hail. Storms should generally move very slowly south or east, producing locally severe gusts and large hail. ..Jewell.. 05/28/2024 .PREV DISCUSSION... /ISSUED 1134 AM CDT Tue May 28 2024/ ...Southeast TX/Western LA... A large nocturnal MCS that continues to affect east TX has dramatically changed the overall forecast of severe storms for later today. The leading edge of the MCS will affect southeast TX and southwest LA this afternoon, in a very moist and extremely unstable environment. Sufficient deep-layer shear will promote supercell and bowing structures capable of damaging winds and very large hail until early evening when the primary activity moves offshore. ...West TX... The outflow boundary from the aforementioned MCS has surged westward across TX. A zone of strong heating and locally higher surface dewpoints on the north side of the boundary is expected to result in rapid thunderstorm development by late afternoon. These storms will be in a favorably sheared environment for intense supercells capable of all severe hazards. Activity will persist through much of the evening and spread into west-central TX. ...WI/IL/IN... Scattered afternoon thunderstorms will develop ahead of a shortwave trough over southeast MN. A few of the storms may produce locally gusty winds and hail, but the overall severe threat is expected to remain marginal. ...Outer Banks of NC... A weak surface boundary currently parallels the NC coast, with a very moist and moderately unstable air mass in place. Isolated afternoon thunderstorms are expected along this boundary, with a risk of locally damaging winds or hail in the most intense storms. ...ME... Isolated afternoon thunderstorms are expected to affect central and eastern ME as a shortwave trough moves across the area. Gusty winds and hail will be possible in the strongest cells. $$