Mesoscale Discussion 1732
Issued: · Valid: –
Summary
Portions of central Arizona may experience severe downbursts with wind gusts exceeding 75 mph and possible haboobs this afternoon and evening.
Product Text
000 ACUS11 KWNS 252142 SWOMCD SPC MCD 252141 AZZ000-252345- Mesoscale Discussion 1732 NWS Storm Prediction Center Norman OK 0441 PM CDT Sat Jul 25 2026 Areas affected...portions of central Arizona Concerning...Severe potential...Watch possible Valid 252141Z - 252345Z Probability of Watch Issuance...60 percent SUMMARY...Multiple severe gusts may occur with embedded downbursts this afternoon and evening. A couple of gusts could exceed 75 mph. DISCUSSION...A cluster of multicells and pulse-cellular storms have gradually congealed into a loosely organized MCS, which is sagging south-southwestward off of the higher terrain. As the MCS and its cold pool propagates toward the lower terrain, it will overspread a hot and deeply mixed boundary layer. Surface temperatures over 110 F, amid 50s F dewpoints, yields 1500-2000 J/kg DCAPE amid 50-60 F surface T/Td spreads, suggesting that ample evaporative cooling potential exists for embedded downbursts to produce potential several severe gusts. Given the magnitude of evaporative cooling potential present, 75+ mph gusts may occur. One or more haboobs may develop with this storm cluster and produce low-visibility conditions as well. ..Squitieri/Hart.. 07/25/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TWC...FGZ...PSR... LAT...LON 34811251 34331090 33831000 33210968 32881000 32711051 32561099 32731162 33021217 33281259 33551275 33791281 34811251 MOST PROBABLE PEAK WIND GUST...65-80 MPH