Day 1 Areal Outline

Issued: 2026-09-17 00:52 UTC

Summary

Severe thunderstorms, including a marginal risk of tornadoes, are expected throughout much of the central and eastern United States and parts of the Pacific Northwest on September 16, 2026. General thunderstorms are forecasted for a wide area ranging from the East Coast to the Pacific coast.

Product Text

000 WUUS01 KWNS 170052 PTSDY1 DAY 1 CONVECTIVE OUTLOOK AREAL OUTLINE NWS STORM PREDICTION CENTER NORMAN OK 0750 PM CDT WED SEP 16 2026 VALID TIME 170100Z - 171200Z PROBABILISTIC OUTLOOK POINTS DAY 1 ... TORNADO ... && ... HAIL ... 0.05 39391106 39531170 39681211 40001226 40451226 40741200 40921164 40961142 40961120 40961077 40891017 40720951 40290904 39880907 39610940 39411020 39391106 && ... WIND ... 0.05 39471131 39531170 39691211 40001225 40241225 40451227 40741200 40921166 40961146 40961117 40841091 40581073 40041066 39681073 39561092 39471131 0.05 38878394 39098482 39478497 39588495 39868484 40138448 40598354 40948267 41118171 41088044 40977994 40587966 40067975 39248043 38848112 38738222 38878394 && CATEGORICAL OUTLOOK POINTS DAY 1 ... CATEGORICAL ... MRGL 39868484 40138448 40948267 41118171 41088044 40977994 40587966 40067975 39248043 38848112 38738222 38878394 39098482 39478497 39868484 MRGL 40741200 40921166 40961077 40891017 40720951 40290904 39880907 39610940 39411020 39391106 39681211 40001226 40451227 40741200 TSTM 27238324 27198250 27198208 27448150 28198089 29238039 99999999 25929842 26669842 27319845 27989843 28719825 29369771 29909692 30359564 30589397 30399237 29549006 28898851 99999999 32051453 32671481 34061529 36111556 37611571 38951573 40391549 41881545 43191609 44111668 44641696 45071685 45271664 45451618 45541501 45511347 45211188 44671070 44020975 43500874 42780734 41730596 41290506 40980418 40960320 41070224 41550110 42110017 42609906 43319833 44189804 44939801 45649754 46039666 46479505 46719426 46759333 46629239 46299136 45869067 45499034 44939014 44338994 43778968 43548935 43128885 42898824 42618744 42438670 42258534 42328401 42378092 42477946 42447820 42237748 41807663 41437649 40977647 40447676 39457794 38407980 37878140 37498270 37538354 37728410 38008448 38378544 38388623 38128724 37698839 37378978 37109142 37169260 37369339 37619379 37949389 38189385 38479341 38929235 39279214 39649251 39769308 39619411 39379562 38849810 38129987 37360122 36380206 35600225 34600240 33350278 31630381 30930447 30350541 99999999 39662288 39642310 39852359 40212395 40662428 41162447 41822460 42532438 43172390 43612329 43992249 44112186 44002114 43722041 43131994 42491986 41772006 40192173 39822233 39662288 && THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 35 W DAY 20 NW DAY 10 NW MFD 20 SSE CLE 15 SE YNG 30 S FKL 25 NNW LBE 25 SW LBE 40 SW MGW 40 SSE PKB 35 S UNI 30 ESE LUK 20 W LUK 40 NW LUK 35 W DAY THERE IS A MARGINAL RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 0 - SLC 20 ENE SLC 25 SSE EVW 45 NW VEL 20 N VEL 25 ESE VEL 45 SSE VEL 55 S VEL 30 N U28 20 SW PUC 30 NE U24 45 NNE U24 30 SW SLC 0 - SLC GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 45 WSW SRQ 15 SSE SRQ 30 ESE SRQ 20 SW AGR 15 WNW MLB 40 E DAB ...CONT... 20 SSW MFE 35 NNW MFE 40 SW ALI 30 NW ALI 40 NW NIR 30 SE BAZ 55 SW CLL 30 SSW UTS 45 N BPT 25 WNW LFT 35 SSE MSY 60 ESE BVE ...CONT... 40 S YUM 10 W YUM 45 NW BLH 25 W LAS 65 NNE DRA 40 SSE P68 35 SSE EKO 40 E OWY 25 SSE BOI 45 NNW BOI 45 ESE BKE 40 WNW MYL 40 NW MYL 40 N MYL 50 SE P69 35 NE SMN 35 E DLN 20 E WEY 50 SW COD 35 NNW RIW 45 W CPR 30 NNW LAR 15 NW CYS 35 ESE CYS 15 SW SNY 40 E SNY 35 S MHN 35 SSW ANW 20 WNW ONL 35 SSW MHE 15 SE HON 40 NNE HON 55 NNW ATY 50 NNW VVV 45 NNE AXN 20 NNW BRD 50 SSW HIB 20 SW DLH 25 SW ASX 50 SSE ASX 45 WSW RHI 25 WNW CWA 30 NNE VOK 30 ESE VOK 30 N MSN 25 E MSN 20 WSW MKE 20 ESE RAC 25 NNW BEH 10 E AZO 15 WNW ARB 45 WNW ERI 25 NNW JHW 45 SE BUF 30 W ELM 30 SSE ELM 25 ENE IPT 30 SE IPT 15 NNE CXY 0 - MRB 35 S EKN 15 WNW BKW 35 E JKL 10 W JKL 35 SE LEX 0 - LEX 20 NE SDF 30 WNW SDF 15 ENE EVV 50 NNE PAH 15 NW CGI 35 NE UNO 50 SSW TBN 10 N SGF 35 NW SGF 55 SSW SZL 40 SSW SZL 20 SSE SZL 10 NW COU 30 N COU 30 S IRK 25 E CDJ 30 WSW CDJ 20 N TOP 25 W SLN 25 NNE DDC 25 NNW LBL 35 NE DHT 35 SSE DHT 50 NW PVW 55 NNE HOB 35 WSW INK 45 NW MRF 85 W MRF ...CONT... 40 NNE UKI 35 N UKI 55 NNW UKI 40 SSE EKA 10 SW EKA 25 WNW ACV 20 W CEC 30 N 4BK 25 SE OTH 35 S EUG 35 ESE EUG 35 WSW RDM 15 S RDM 50 SE RDM 70 NNE LKV 35 NE LKV 35 SSE LKV 30 E RBL 25 S RBL 40 NNE UKI