FMUS24 KWNH 181729 PRBWHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1727 UTC MON MAY 18 2026 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT WESTERN US CITIES - DAYS 3 TO 7 FROM MON MAY 18 2026 ABILENE_TX ALBUQUERQUE_NM ABI 0521 0522 0523 0524 0525 ABQ 0521 0522 0523 0524 0525 MEAN 72 76 75 75 76 MEAN 62 62 63 65 66 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 1 0 0 %>90 0 0 0 0 0 %>85 0 3 4 2 4 %>85 0 0 0 0 0 %>80 5 19 19 14 21 %>80 0 0 0 0 1 %>75 24 54 49 46 56 %>75 0 0 1 2 6 %>70 64 86 81 82 87 %>70 3 5 9 14 24 AMARILLO_TX AUSTIN_TX AMA 0521 0522 0523 0524 0525 AUS 0521 0522 0523 0524 0525 MEAN 63 66 66 67 69 MEAN 80 81 80 80 81 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 1 1 0 0 1 %>90 0 0 0 0 0 %>90 4 5 4 3 6 %>85 0 0 0 0 0 %>85 19 23 18 16 25 %>80 0 0 0 0 1 %>80 49 55 47 47 58 %>75 1 4 2 5 10 %>75 80 84 78 81 86 %>70 8 22 19 27 39 %>70 96 97 95 96 98 BATON_ROUGE_LA BISMARCK_ND BTR 0521 0522 0523 0524 0525 BIS 0521 0522 0523 0524 0525 MEAN 83 83 82 82 83 MEAN 54 52 56 63 66 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 1 1 1 1 %>95 0 0 0 0 0 %>90 4 7 8 7 8 %>90 0 0 0 0 0 %>85 31 32 31 28 32 %>85 0 0 0 0 0 %>80 77 71 67 64 70 %>80 0 0 0 0 1 %>75 97 94 92 90 93 %>75 0 0 0 1 5 %>70 100 100 99 99 99 %>70 0 0 0 10 23 BROWNSVILLE_TX CORPUS_CHRISTI_TX BRO 0521 0522 0523 0524 0525 CRP 0521 0522 0523 0524 0525 MEAN 94 93 93 91 91 MEAN 88 86 86 85 86 %>100 23 16 16 10 7 %>100 2 1 1 1 0 %>95 47 39 37 28 25 %>95 11 8 6 4 4 %>90 72 67 63 54 54 %>90 34 28 24 19 21 %>85 89 88 85 78 82 %>85 67 60 55 50 55 %>80 97 97 96 93 96 %>80 90 86 84 80 86 %>75 99 100 99 99 99 %>75 98 97 97 96 98 %>70 100 100 100 100 100 %>70 100 100 100 100 100 DALLAS_TX DENVER_CO DFW 0521 0522 0523 0524 0525 DEN 0521 0522 0523 0524 0525 MEAN 74 77 78 77 79 MEAN 52 52 56 61 64 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 2 %>90 0 0 0 0 0 %>85 0 3 6 4 14 %>85 0 0 0 0 0 %>80 3 25 31 26 45 %>80 0 0 0 0 0 %>75 34 69 71 69 79 %>75 0 0 0 0 2 %>70 85 95 95 95 96 %>70 0 0 0 3 13 DES_MOINES_IA EL_PASO_TX DSM 0521 0522 0523 0524 0525 ELP 0521 0522 0523 0524 0525 MEAN 52 56 62 68 72 MEAN 71 70 70 72 73 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 1 %>90 0 0 0 0 0 %>85 0 0 0 0 3 %>85 0 0 0 0 1 %>80 0 0 0 2 13 %>80 0 0 1 2 9%>75 0 0 1 11 35 %>75 8 7 12 21 36 %>70 0 0 6 35 64 %>70 57 53 53 66 74 FRESNO_CA GOODLAND_KS FAT 0521 0522 0523 0524 0525 GLD 0521 0522 0523 0524 0525 MEAN 74 75 74 73 72 MEAN 51 54 57 63 64 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 1 %>85 0 0 0 0 0 %>80 2 8 5 4 9 %>80 0 0 0 0 0 %>75 35 54 39 31 32 %>75 0 0 0 0 2 %>70 89 94 89 81 66 %>70 0 0 1 6 15 GREAT_FALLS_MT HOUSTON_TX GTF 0521 0522 0523 0524 0525 HOU 0521 0522 0523 0524 0525 MEAN 48 52 57 62 62 MEAN 85 84 83 83 85 %>100 0 0 0 0 0 %>100 1 1 0 1 1 %>95 0 0 0 0 0 %>95 4 4 3 4 7 %>90 0 0 0 0 0 %>90 19 17 14 15 22 %>85 0 0 0 0 0 %>85 49 44 39 38 49 %>80 0 0 0 0 2 %>80 80 74 70 67 76 %>75 0 0 0 1 7 %>75 95 92 91 89 92 %>70 0 0 0 8 18 %>70 99 99 98 97 98 JACKSON_MS KANSAS_CITY_MO JAN 0521 0522 0523 0524 0525 MCI 0521 0522 0523 0524 0525 MEAN 81 80 80 80 81 MEAN 57 63 66 71 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 2 1 2 2 4 %>90 0 0 0 0 1 %>85 17 13 14 15 21 %>85 0 0 0 1 7 %>80 55 49 50 50 57 %>80 0 0 1 7 24 %>75 89 86 85 86 88 %>75 0 1 5 27 52 %>70 99 99 98 98 99 %>70 0 8 24 59 78 LAS_VEGAS_NV LITTLE_ROCK_AR LAS 0521 0522 0523 0524 0525 LIT 0521 0522 0523 0524 0525 MEAN 71 74 75 76 77 MEAN 70 72 75 75 77 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 1 %>95 0 0 0 0 0 %>90 0 1 1 3 5 %>90 0 0 0 0 0 %>85 2 6 7 11 15 %>85 0 0 1 0 2 %>80 8 19 24 29 35 %>80 2 2 10 9 22 %>75 26 44 52 58 62 %>75 15 23 49 50 66 %>70 56 73 80 83 84 %>70 54 72 89 91 95 LOS_ANGELES_CA MIDLAND_TX LAX 0521 0522 0523 0524 0525 MAF 0521 0522 0523 0524 0525 MEAN 66 64 63 63 63 MEAN 71 73 73 72 73 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 1 1 0 1 %>80 0 0 0 0 0 %>80 3 8 7 5 9 %>75 1 0 0 0 1 %>75 20 34 31 27 36 %>70 13 5 2 3 4 %>70 56 73 69 69 74 MINNEAPOLIS_MN NEW_ORLEANS_LA MSP 0521 0522 0523 0524 0525 MSY 0521 0522 0523 0524 0525 MEAN 52 54 59 66 71 MEAN 84 85 85 85 85 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 1 3 2 3 %>90 0 0 0 0 0 %>90 7 11 18 15 16 %>85 0 0 0 0 2 %>85 42 48 52 47 49 %>80 0 0 0 1 9 %>80 87 88 85 81 83 %>75 0 0 0 7 29 %>75 99 99 98 97 97 %>70 0 0 2 25 58 %>70 100 100 100 100 100NORTH_PLATTE_NE OKLAHOMA_CITY_OK LBF 0521 0522 0523 0524 0525 OKC 0521 0522 0523 0524 0525 MEAN 48 52 56 62 65 MEAN 66 71 72 73 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 1 0 3 %>80 0 0 0 0 0 %>80 0 2 6 5 17 %>75 0 0 0 1 3 %>75 2 19 27 31 52 %>70 0 0 1 7 19 %>70 19 61 65 74 86 OMAHA_NE PENDLETON_OR OMA 0521 0522 0523 0524 0525 PDT 0521 0522 0523 0524 0525 MEAN 51 56 61 67 72 MEAN 58 61 63 62 56 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 2 %>85 0 0 0 0 0 %>80 0 0 0 1 10 %>80 0 0 0 1 0 %>75 0 0 0 8 33 %>75 0 0 0 3 1 %>70 0 0 2 32 66 %>70 0 1 6 12 5 PHOENIX_AZ PORTLAND_OR PHX 0521 0522 0523 0524 0525 PDX 0521 0522 0523 0524 0525 MEAN 76 78 79 81 82 MEAN 64 64 62 59 56 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 1 %>95 0 0 0 0 0 %>90 0 1 1 3 6 %>90 0 0 0 0 0 %>85 4 8 12 20 26 %>85 0 0 0 0 0 %>80 22 32 43 60 61 %>80 0 1 0 0 0 %>75 58 70 80 91 89 %>75 1 5 2 2 1 %>70 89 93 97 99 98 %>70 11 19 12 8 4 RAPID_CITY_SD SACRAMENTO_CA RAP 0521 0522 0523 0524 0525 SAC 0521 0522 0523 0524 0525 MEAN 53 51 57 63 67 MEAN 73 71 68 68 68 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 3 2 0 0 3 %>75 0 0 0 1 9 %>75 28 17 3 4 13 %>70 0 0 0 10 30 %>70 80 57 28 29 36 SAINT_LOUIS_MO SALT_LAKE_CITY_UT STL 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%>75 3 26 34 44 62 %>75 0 4 9 19 40 %>70 29 70 72 79 88 %>70 2 23 32 57 77 YUMA_AZ YUM 0521 0522 0523 0524 0525 MEAN 76 77 76 78 79 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 1 %>85 0 1 0 2 9 %>80 12 16 12 30 44 %>75 60 70 69 84 85 %>70 96 98 98 99 99 URL IS WWW.WPC.NCEP.NOAA.GOV $$