Subj : MESO: Nws Weather Prediction Center College Park Md To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Mon Jul 01 2024 01:40:48 AWUS01 KWNH 010140 FFGMPD TXZ000-COZ000-NMZ000-AZZ000-UTZ000-010740- Mesoscale Precipitation Discussion 0528 NWS Weather Prediction Center College Park MD 940 PM EDT Sun Jun 30 2024 Areas affected...Southwest U.S. Concerning...Heavy rainfall...Flash flooding likely Valid 010140Z - 010740Z SUMMARY...Broken clusters of heavy showers and thunderstorms will continue through the evening hours. Additional areas of flash flooding are likely, and especially with ongoing sensitivities over multiple wash locations and burn scar areas that have already seen flash flooding today. DISCUSSION...The early evening GOES-E satellite imagery shows broken coverage of cold-topped convection over large areas of southern and western NM through central and eastern AZ and northeastward up into far southeast UT and southwest CO. The latest RAP analysis still shows as much as 1000 to 2000 J/kg of MLCAPE lingering over southern NM and central/southern AZ. Separately there is also a pocket of MLCAPE reaching 1500 J/kg over southwest CO. Despite the ongoing convective overturning process, sufficient instability and moisture transport around the western periphery of the subtropical ridge should favor convection linger well through the evening hours. Proximity of some weak embedded vort energy and shear should favor some of the convection also remaining somewhat organized with some multicell convective clusters. The PW environment remains very high and basically unchanged from earlier in the day with values that are 2 to 3+ standard deviations above normal. This combined with the instability and influence from orographics/upslope flow over the terrain should continue to favor rainfall rates reaching 1 to 2 inches/hour. Additional storm totals of 2 to 4 inches of rain cannot be ruled out locally, and the additional rains this evening will continue to favor areas of flash flooding which may occur over some areas that have already been hit this afternoon and early this evening. The burn scar locations and normally dry washes will continue to be the main focus for enhanced impacts and flash flooding concerns. Orrison ....Please see https://urldefense.com/v3/__http://www.wpc.ncep.noaa.gov__;!!= DZ3fjg!-vqy9cTkuupIPijfKyOdwRmUg4umEAL00HUrLNZoICTh5YxPqGvKECzR6nL6ugIVMp-Q= zU8ud88m1lHSi6spNLCFBhY$ for graphic product... ATTN...WFO...ABQ...EPZ...FGZ...GJT...MAF...PSR...PUB...TWC... ATTN...RFC...CBRFC...WGRFC...NWC... LAT...LON 38450773 38280610 37140624 35850612 34720568=20 33590500 32210482 31250579 31250827 31051064=20 31561244 32731309 33651364 34461325 35711140=20 37210968=20 =3D =3D =3D 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 3.20-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .