FMUS23 KWNH 190654 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0652 UTC TUE MAY 19 2026 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM TUE MAY 19 2026 AKRON-CANTON_OH ALBANY_NY CAK 0522 0523 0524 0525 0526 ALB 0522 0523 0524 0525 0526 MEAN 58 65 68 70 73 MEAN 54 52 55 59 63 %>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 0 0 2 7 %>85 0 0 0 0 0 %>80 0 1 3 8 19 %>80 0 0 0 0 0 %>75 0 6 13 25 40 %>75 0 0 0 1 3 %>70 1 23 37 50 63 %>70 0 0 1 6 12 ASHEVILLE_NC ATLANTA_GA AVL 0522 0523 0524 0525 0526 ATL 0522 0523 0524 0525 0526 MEAN 67 69 71 71 71 MEAN 79 78 79 79 78 %>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 4 2 4 6 5 %>80 0 1 2 2 3 %>80 37 31 37 39 36 %>75 4 9 15 17 20 %>75 86 85 87 85 81 %>70 24 43 54 58 63 %>70 99 99 99 99 98 BALTIMORE_MD BIRMINGHAM_AL BWI 0522 0523 0524 0525 0526 BHM 0522 0523 0524 0525 0526 MEAN 56 61 67 68 70 MEAN 79 78 79 79 79 %>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 1 1 %>85 0 0 1 1 2 %>85 3 3 6 10 10 %>80 0 0 5 4 9 %>80 35 27 39 43 44 %>75 0 2 17 17 26 %>75 86 73 84 83 83 %>70 0 9 37 41 52 %>70 99 97 99 98 98 BOSTON_MA BUFFALO_NY BOS 0522 0523 0524 0525 0526 BUF 0522 0523 0524 0525 0526 MEAN 55 52 52 55 59 MEAN 53 56 59 62 65 %>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 0 %>80 0 0 0 0 0 %>75 0 0 0 0 1 %>75 0 0 0 1 4 %>70 0 0 0 1 4 %>70 0 0 2 7 19 CHARLESTON_SC CHARLESTON_WV CHS 0522 0523 0524 0525 0526 CRW 0522 0523 0524 0525 0526 MEAN 82 84 84 83 83 MEAN 67 71 74 74 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 1 0 0 %>95 0 0 0 0 0 %>90 2 6 8 6 4 %>90 0 0 0 1 1 %>85 22 38 41 35 29 %>85 0 0 3 5 6 %>80 73 83 83 78 75 %>80 0 2 16 19 23 %>75 98 99 99 98 97 %>75 4 16 44 46 52 %>70 100 100 100 100 100 %>70 27 56 76 75 80 CHARLOTTE_NC CHICAGO_IL CLT 0522 0523 0524 0525 0526 ORD 0522 0523 0524 0525 0526 MEAN 73 76 77 77 77 MEAN 54 60 64 69 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 1 1 0 %>90 0 0 0 0 2 %>85 2 3 7 6 4 %>85 0 0 0 2 7 %>80 11 19 30 28 24 %>80 0 0 1 7 20%>75 36 55 66 65 65 %>75 0 0 4 21 41 %>70 69 87 91 91 93 %>70 0 4 18 44 65 CINCINNATI_OH CLEVELAND_OH LUK 0522 0523 0524 0525 0526 CLE 0522 0523 0524 0525 0526 MEAN 65 72 73 74 77 MEAN 59 65 67 71 73 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 1 %>95 0 0 0 0 1 %>90 0 0 0 1 4 %>90 0 0 0 2 4 %>85 0 0 2 6 13 %>85 0 0 1 6 10 %>80 0 3 12 21 33 %>80 0 1 4 14 22 %>75 1 24 37 47 59 %>75 0 7 14 30 40 %>70 13 68 71 74 82 %>70 3 24 34 51 61 COLUMBIA_SC COLUMBUS_OH CAE 0522 0523 0524 0525 0526 TZR 0522 0523 0524 0525 0526 MEAN 81 82 82 82 81 MEAN 62 70 71 73 76 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 1 %>90 1 2 4 3 1 %>90 0 0 0 1 3 %>85 15 24 27 22 15 %>85 0 0 1 4 12 %>80 62 71 71 66 58 %>80 0 2 7 15 29 %>75 95 97 96 94 92 %>75 0 14 25 37 54 %>70 100 100 100 100 100 %>70 6 51 57 66 78 DAYTON_OH DETROIT_MI MGY 0522 0523 0524 0525 0526 DET 0522 0523 0524 0525 0526 MEAN 63 71 72 74 77 MEAN 55 61 63 67 71 %>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 0 0 1 4 %>90 0 0 0 0 0 %>85 0 0 2 6 14 %>85 0 0 0 0 2 %>80 0 2 10 20 33 %>80 0 0 0 2 8 %>75 0 19 32 44 58 %>75 0 2 2 11 26 %>70 7 59 64 71 80 %>70 0 9 13 32 54 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0522 0523 0524 0525 0526 GRR 0522 0523 0524 0525 0526 MEAN 69 73 75 77 80 MEAN 53 60 63 67 71 %>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 0 0 2 6 %>90 0 0 0 0 0 %>85 0 1 3 9 21 %>85 0 0 0 1 3 %>80 0 10 17 30 47 %>80 0 0 0 4 10 %>75 7 36 48 61 75 %>75 0 1 2 15 29 %>70 39 72 81 86 92 %>70 0 4 10 36 56 GREENSBORO_NC HUNTSVILLE_AL GSO 0522 0523 0524 0525 0526 HSV 0522 0523 0524 0525 0526 MEAN 66 71 75 75 75 MEAN 77 76 77 77 78 %>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 1 %>85 0 2 6 4 3 %>85 2 1 2 4 7 %>80 0 8 21 18 16 %>80 22 13 22 27 34 %>75 4 27 48 47 47 %>75 69 57 69 71 75 %>70 21 56 76 78 80 %>70 96 93 96 96 96 INDIANAPOLIS_IN KNOXVILLE_TN IND 0522 0523 0524 0525 0526 TYS 0522 0523 0524 0525 0526 MEAN 62 69 71 73 76 MEAN 77 76 76 77 78 %>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 1 3 %>90 1 0 1 1 1 %>85 0 0 1 4 11 %>85 5 4 5 8 9 %>80 0 2 8 16 29 %>80 24 20 23 29 33 %>75 0 14 28 39 56 %>75 62 56 60 63 68 %>70 2 45 59 68 80 %>70 91 88 89 89 92LEXINGTON_KY LOUISVILLE_KY LEX 0522 0523 0524 0525 0526 SDF 0522 0523 0524 0525 0526 MEAN 69 72 73 74 76 MEAN 69 74 75 76 79 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 2 %>90 0 0 0 0 1 %>90 0 0 0 2 7 %>85 0 0 0 2 7 %>85 0 1 4 10 20 %>80 0 1 6 12 26 %>80 1 9 19 30 44 %>75 6 17 33 42 59 %>75 10 40 50 59 70 %>70 37 74 76 78 87 %>70 42 79 81 83 89 MEMPHIS_TN MIAMI_FL MEM 0522 0523 0524 0525 0526 MIA 0522 0523 0524 0525 0526 MEAN 75 76 77 78 80 MEAN 89 90 90 90 90 %>100 0 0 0 0 0 %>100 1 2 3 2 2 %>95 0 0 0 0 0 %>95 8 12 14 12 14 %>90 0 0 0 0 2 %>90 37 45 47 44 47 %>85 0 1 3 6 15 %>85 82 86 85 85 86 %>80 8 18 23 32 50 %>80 98 99 98 99 99 %>75 55 64 68 75 85 %>75 100 100 100 100 100 %>70 95 95 95 97 98 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0522 0523 0524 0525 0526 MOB 0522 0523 0524 0525 0526 MEAN 49 54 58 62 67 MEAN 82 83 84 84 83 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 1 1 0 %>90 0 0 0 0 0 %>90 0 6 9 10 6 %>85 0 0 0 0 2 %>85 17 35 42 41 35 %>80 0 0 0 1 6 %>80 76 79 83 80 77 %>75 0 0 0 3 16 %>75 99 98 98 97 97 %>70 0 0 2 12 35 %>70 100 100 100 100 100 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0522 0523 0524 0525 0526 NYC 0522 0523 0524 0525 0526 MEAN 76 75 76 77 79 MEAN 58 55 60 63 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 0 0 2 %>90 0 0 0 0 0 %>85 1 1 3 5 14 %>85 0 0 0 0 0 %>80 14 10 19 27 44 %>80 0 0 0 1 2 %>75 55 49 60 67 79 %>75 0 0 1 4 8 %>70 91 90 92 93 96 %>70 0 0 6 15 25 NORFOLK_VA ORLANDO_FL ORF 0522 0523 0524 0525 0526 ORL 0522 0523 0524 0525 0526 MEAN 66 73 77 75 75 MEAN 87 89 88 88 88 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 1 0 0 %>95 0 4 6 4 3 %>90 0 0 4 1 2 %>90 12 34 34 29 27 %>85 0 2 12 7 7 %>85 69 83 78 75 77 %>80 0 11 31 21 22 %>80 99 99 98 97 98 %>75 2 34 58 48 48 %>75 100 100 100 100 100 %>70 18 68 84 76 76 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0522 0523 0524 0525 0526 PIT 0522 0523 0524 0525 0526 MEAN 57 57 63 66 68 MEAN 57 64 69 71 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 2 %>85 0 0 1 0 1 %>85 0 0 1 3 6 %>80 0 0 2 2 5 %>80 0 1 5 11 18 %>75 0 0 8 9 16 %>75 0 6 19 29 39 %>70 0 2 22 26 38 %>70 0 20 44 55 64 PORTLAND_ME PROVIDENCE_RI PWM 0522 0523 0524 0525 0526 PVD 0522 0523 0524 0525 0526 MEAN 51 49 49 51 53 MEAN 55 52 54 58 61 %>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 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 0 0 1 %>70 0 0 0 0 0 %>70 0 0 0 3 7 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0522 0523 0524 0525 0526 RIC 0522 0523 0524 0525 0526 MEAN 70 77 78 78 77 MEAN 61 70 75 74 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 1 0 0 %>90 0 2 3 2 1 %>90 0 1 4 2 3 %>85 0 9 15 11 9 %>85 0 4 12 8 10 %>80 3 31 40 36 32 %>80 0 11 27 22 26 %>75 18 64 71 70 67 %>75 0 27 49 45 49 %>70 52 88 91 92 91 %>70 2 50 71 70 74 SAVANNAH_GA TALLAHASSEE_FL SAV 0522 0523 0524 0525 0526 TLH 0522 0523 0524 0525 0526 MEAN 83 85 85 84 83 MEAN 84 85 86 86 85 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 1 0 0 %>95 0 0 1 1 1 %>90 2 7 10 7 5 %>90 1 5 16 15 10 %>85 27 47 51 40 34 %>85 29 48 60 56 48 %>80 84 91 91 84 80 %>80 94 94 93 91 88 %>75 99 100 100 99 98 %>75 100 100 100 99 99 %>70 100 100 100 100 100 %>70 100 100 100 100 100 TAMPA_FL WASHINGTON_DC TPA 0522 0523 0524 0525 0526 DCA 0522 0523 0524 0525 0526 MEAN 89 90 90 90 90 MEAN 56 62 69 69 72 %>100 0 2 4 4 2 %>100 0 0 0 0 0 %>95 6 15 19 19 14 %>95 0 0 0 0 0 %>90 37 49 50 51 46 %>90 0 0 1 0 1 %>85 81 84 82 82 82 %>85 0 0 2 2 5 %>80 98 98 97 97 97 %>80 0 1 9 8 15 %>75 100 100 100 100 100 %>75 0 5 22 23 33 %>70 100 100 100 100 100 %>70 0 16 44 47 58 URL IS WWW.WPC.NCEP.NOAA.GOV $$