
MD 2009 CONCERNING SEVERE POTENTIAL…WATCH UNLIKELY FOR EASTERN COLORADO TO SOUTHWEST KANSAS
Mesoscale Discussion 2009 NWS Storm Prediction Center Norman OK 0246 PM CDT Sun Aug 24 2025 Areas affected...Eastern Colorado to southwest Kansas Concerning...Severe potential...Watch unlikely Valid 241946Z - 242145Z Probability of Watch Issuance...20 percent SUMMARY...An isolated supercell or two appears possible this afternoon across eastern Colorado to southwest Kansas. Large hail, and perhaps a tornado, will be possible. DISCUSSION...Latest GOES imagery show steady vertical development of convective towers near the intersection of a diffuse warm front draped across eastern CO and a decaying outflow boundary from morning convection. Temperatures warming into the upper 70s and low 80s continue to erode lingering MLCIN in the vicinity of the boundary intersection, which should help increase the probability of sustained convection in the coming hours. While it remains unclear how many thunderstorms will emerge from this zone due to weak forcing for ascent, the downstream environment is becoming increasingly favorable for supercells with MLCAPE increasing to around 1500 J/kg and deep-layer wind shear on the order of 35-45 knots in the vicinity of the boundary. Additionally, backed winds on the cool side of the boundary (where temperatures are quickly recovering) may support locally-enhanced low-level SRH and/or augmented low-level vertical vorticity on the boundary itself. Consequently, it is conceivable that a supercell could propagate along the boundary to the southeast with an attendant threat for large hail (possibly as large as 2.5 inches) and perhaps a tornado. Watch issuance is not imminent due to uncertainty regarding storm coverage, but convective trends will continue to be monitored through this corridor. ..Moore/Gleason.. 08/24/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DDC...GLD...PUB...BOU... LAT...LON 38920363 39240385 39650373 39810340 39840299 39050173 38120083 37760080 37520111 37320146 37350181 37500212 38920363 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN