Day 1 Areal Outline

Issued: 2026-09-17 05:49 UTC

Summary

Marginal risks of severe thunderstorms, including potential tornadoes, wind, and hail, are expected across parts of the central and western United States throughout Thursday, September 17. General thunderstorms are forecasted for a broad area spanning from the Southwest through the Midwest and into the Northeast.

Product Text

000 WUUS01 KWNS 170549 PTSDY1 DAY 1 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 1247 AM CDT THU SEP 17 2026 VALID TIME 171200Z - 181200Z PROBABILISTIC OUTLOOK POINTS DAY 1 ... TORNADO ... && ... HAIL ... 0.05 40091075 40041123 40171161 40461209 43051388 43861463 45011568 45581571 46091499 46211423 45781313 44781210 43101113 41151042 40361051 40091075 && ... WIND ... 0.05 39930217 40000295 40240383 40560420 41010456 41530457 42130435 42610375 42980284 42950149 42670064 42099998 41260002 40620034 40260076 40080135 39930217 0.05 40101076 40021116 40151154 40431207 41421275 43101390 44181493 44991568 45561570 46111499 46181422 45771309 44791210 43111112 41171044 40371048 40101076 && CATEGORICAL OUTLOOK POINTS DAY 1 ... CATEGORICAL ... MRGL 42130435 42610375 42980284 42950149 42670064 42099998 41260002 40620034 40260076 39930217 40000295 40240383 41010456 41530457 42130435 MRGL 46111499 46211423 45771309 44791210 43111112 41151042 40371048 40091075 40021116 40431207 43051388 44991568 45581571 46111499 TSTM 30491014 31021022 32271093 32841160 33501217 34961308 36371366 37701383 39071429 41871437 42201617 41341885 40642058 40542123 40602181 40802248 41182302 41682343 42362345 42392343 42962305 45832025 47411745 48591394 48411096 47790751 47960512 48990389 49000193 46419926 44719471 42678984 41998641 41778369 41968134 42577805 42817606 42567475 41737432 40137500 38577630 37297843 36118021 34558303 34668446 34688513 34898727 35078851 35738894 36498916 36658982 36469094 35369292 34599420 34339493 34339569 34769636 35409663 36739648 37849611 39289586 39439589 39669622 39989688 40009771 40029849 39739953 38980044 37200217 33130418 31060611 30320591 99999999 28690087 30000022 31019854 30949602 29449265 28939198 99999999 28018333 28538234 29188193 29968115 30228075 && THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 10 WNW TOR 45 NNE TOR 15 NE CDR 50 W VTN 15 SSW VTN 35 S ANW 25 WSW BBW 30 NNE MCK 10 WNW MCK 50 N ITR 20 SE AKO 30 W AKO 15 SE CYS 30 NNE CYS 10 WNW TOR THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 30 E P69 50 S MSO 30 WSW BTM 20 NE MQM 40 SSW JAC 35 ESE EVW 55 NNE PUC 35 N PUC 35 NW PUC 25 SSW SLC 35 N BYI 20 ENE MYL 40 S P69 30 E P69 GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 75 S FHU 40 S FHU 10 N TUS 45 SSE PHX 10 WNW PHX 45 WNW PRC 50 S SGU 45 NNW SGU 35 ESE ELY 40 S TWF 15 N OWY 65 WNW WMC 60 S AAT 60 ENE RBL 40 NE RBL 35 SSW MHS 40 WSW MHS 40 E CEC 30 W MFR 30 W MFR 40 NNW MFR 55 SSE YKM 15 SSE GEG 25 NE GPI 65 NNE GTF 50 SW GGW 25 ESE OLF 55 NNW ISN 60 NNW MOT 45 SW JMS 20 ENE RWF 40 SSE LNR 10 S BEH 15 NNE TOL 45 NE CLE 45 SSW ROC 20 S SYR 60 N MSV 25 WNW POU 15 SW TTN 20 NNE NHK 45 NNW AVC 15 W GSO 20 W AND 45 ENE RMG 25 N RMG 20 ENE MSL 45 SSE MKL 10 N MKL 35 NNE DYR 40 SSW CGI 25 N ARG 10 NE RUE 40 NNE DEQ 35 WNW DEQ 40 S MLC 35 WSW MLC 25 SSE CQB 25 W BVO 35 S EMP 20 NW TOP 30 NNW TOP 45 NNE MHK 20 SSW BIE 30 N CNK 40 S HSI 30 NNE HLC 45 SW HLC 20 NW EHA 25 ESE ROW 55 SSE ELP 105 SSE ELP ...CONT... 45 S DRT 45 SW JCT 60 SSE BWD 30 NE CLL 40 SW 7R4 60 S 7R4 ...CONT... 40 W PIE 45 S OCF 15 E OCF 10 E SGJ 40 ENE SGJ