FMUS23 KWNH 191729 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1727 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 69 69 70 MEAN 55 53 55 60 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 0 1 3 3 5 %>80 0 0 0 0 0 %>75 0 7 15 16 19 %>75 0 0 0 1 3 %>70 1 23 42 44 48 %>70 0 0 1 6 14 ASHEVILLE_NC ATLANTA_GA AVL 0522 0523 0524 0525 0526 ATL 0522 0523 0524 0525 0526 MEAN 67 69 71 71 71 MEAN 79 79 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 4 5 4 3 %>80 0 1 2 1 1 %>80 41 36 41 35 29 %>75 3 8 14 12 16 %>75 90 85 87 85 79 %>70 22 38 54 54 62 %>70 100 99 99 99 98 BALTIMORE_MD BIRMINGHAM_AL BWI 0522 0523 0524 0525 0526 BHM 0522 0523 0524 0525 0526 MEAN 57 59 65 69 70 MEAN 79 78 78 78 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 0 0 %>85 0 0 1 1 1 %>85 4 4 4 6 7 %>80 0 0 3 6 5 %>80 34 30 33 35 37 %>75 0 0 10 19 21 %>75 83 75 81 79 79 %>70 0 3 27 44 53 %>70 99 97 99 98 97 BOSTON_MA BUFFALO_NY BOS 0522 0523 0524 0525 0526 BUF 0522 0523 0524 0525 0526 MEAN 55 53 52 56 59 MEAN 53 54 60 62 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 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 0 1 %>70 0 0 0 1 5 %>70 0 0 4 4 11 CHARLESTON_SC CHARLESTON_WV CHS 0522 0523 0524 0525 0526 CRW 0522 0523 0524 0525 0526 MEAN 83 84 84 83 83 MEAN 68 72 74 74 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 1 1 0 0 %>95 0 0 0 0 0 %>90 6 9 8 3 4 %>90 0 0 0 0 0 %>85 33 42 40 28 30 %>85 0 1 2 2 3 %>80 78 84 82 77 77 %>80 1 8 11 12 16 %>75 98 99 98 98 98 %>75 7 32 39 40 47 %>70 100 100 100 100 100 %>70 32 67 75 75 80 CHARLOTTE_NC CHICAGO_IL CLT 0522 0523 0524 0525 0526 ORD 0522 0523 0524 0525 0526 MEAN 73 75 77 77 77 MEAN 55 61 64 67 70 %>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 1 3 5 4 2 %>85 0 0 0 0 1 %>80 9 17 28 25 24 %>80 0 0 0 1 7%>75 34 51 67 64 71 %>75 0 1 3 7 23 %>70 70 84 93 92 96 %>70 0 5 16 27 50 CINCINNATI_OH CLEVELAND_OH LUK 0522 0523 0524 0525 0526 CLE 0522 0523 0524 0525 0526 MEAN 65 72 72 73 74 MEAN 59 66 68 68 70 %>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 1 2 3 %>85 0 0 1 0 2 %>80 0 3 7 12 15 %>80 0 2 4 3 7 %>75 2 24 30 37 44 %>75 1 10 15 13 22 %>70 15 68 66 70 77 %>70 4 26 37 37 48 COLUMBIA_SC COLUMBUS_OH CAE 0522 0523 0524 0525 0526 TZR 0522 0523 0524 0525 0526 MEAN 82 82 83 82 81 MEAN 62 70 71 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 2 4 5 3 2 %>90 0 0 0 0 0 %>85 23 26 30 21 17 %>85 0 0 1 1 2 %>80 71 69 72 64 59 %>80 0 2 5 8 10 %>75 97 95 96 93 92 %>75 0 17 24 29 34 %>70 100 100 100 100 100 %>70 6 53 57 62 67 DAYTON_OH DETROIT_MI MGY 0522 0523 0524 0525 0526 DET 0522 0523 0524 0525 0526 MEAN 63 71 71 73 74 MEAN 55 61 64 66 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 1 2 3 %>85 0 0 0 0 0 %>80 0 3 6 12 14 %>80 0 0 0 0 2 %>75 1 21 25 35 41 %>75 0 1 3 3 10 %>70 9 59 59 66 73 %>70 0 7 15 19 35 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0522 0523 0524 0525 0526 GRR 0522 0523 0524 0525 0526 MEAN 68 73 74 75 78 MEAN 54 59 63 66 69 %>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 1 1 3 11 %>85 0 0 0 0 1 %>80 0 9 10 17 36 %>80 0 0 0 1 5 %>75 6 36 40 50 70 %>75 0 0 1 6 18 %>70 34 72 77 83 92 %>70 0 3 9 24 46 GREENSBORO_NC HUNTSVILLE_AL GSO 0522 0523 0524 0525 0526 HSV 0522 0523 0524 0525 0526 MEAN 65 70 74 75 75 MEAN 77 76 76 77 77 %>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 1 4 3 3 %>85 2 1 1 2 3 %>80 0 5 17 17 18 %>80 20 14 14 21 24 %>75 3 19 46 48 54 %>75 65 60 63 68 71 %>70 18 48 77 81 87 %>70 95 95 96 96 96 INDIANAPOLIS_IN KNOXVILLE_TN IND 0522 0523 0524 0525 0526 TYS 0522 0523 0524 0525 0526 MEAN 61 69 70 72 74 MEAN 77 76 76 76 77 %>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 1 1 0 0 0 %>85 0 0 1 1 4 %>85 6 5 2 3 5 %>80 0 3 5 7 17 %>80 25 22 17 19 26 %>75 0 15 21 28 44 %>75 61 57 56 59 66 %>70 3 45 52 61 74 %>70 90 87 90 91 93LEXINGTON_KY LOUISVILLE_KY LEX 0522 0523 0524 0525 0526 SDF 0522 0523 0524 0525 0526 MEAN 68 73 72 73 75 MEAN 69 74 74 75 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 3 %>85 0 0 0 0 2 %>85 0 1 2 4 13 %>80 0 2 3 6 16 %>80 1 11 13 19 36 %>75 6 25 26 32 50 %>75 8 42 43 50 66 %>70 34 78 71 75 84 %>70 39 80 78 81 88 MEMPHIS_TN MIAMI_FL MEM 0522 0523 0524 0525 0526 MIA 0522 0523 0524 0525 0526 MEAN 75 77 76 77 79 MEAN 90 90 90 90 90 %>100 0 0 0 0 0 %>100 2 3 3 2 3 %>95 0 0 0 0 0 %>95 11 14 17 14 16 %>90 0 0 0 0 0 %>90 44 49 52 49 52 %>85 0 1 2 3 7 %>85 85 87 88 88 88 %>80 8 19 18 23 37 %>80 99 99 99 99 99 %>75 54 67 62 67 81 %>75 100 100 100 100 100 %>70 94 96 94 95 98 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0522 0523 0524 0525 0526 MOB 0522 0523 0524 0525 0526 MEAN 50 54 58 61 63 MEAN 83 84 85 84 83 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 1 1 1 1 %>90 0 0 0 0 0 %>90 6 12 12 10 8 %>85 0 0 0 0 0 %>85 35 44 47 41 37 %>80 0 0 0 0 1 %>80 78 81 84 79 77 %>75 0 0 0 0 4 %>75 97 97 98 97 96 %>70 0 0 2 4 15 %>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 75 76 75 76 78 MEAN 58 54 58 64 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 1 %>90 0 0 0 0 0 %>85 1 1 1 3 7 %>85 0 0 0 0 0 %>80 12 12 11 20 34 %>80 0 0 0 1 1 %>75 49 55 53 62 74 %>75 0 0 0 5 7 %>70 87 93 92 93 96 %>70 0 0 2 18 25 NORFOLK_VA ORLANDO_FL ORF 0522 0523 0524 0525 0526 ORL 0522 0523 0524 0525 0526 MEAN 67 73 75 75 75 MEAN 87 88 88 88 88 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 4 5 2 2 %>90 0 0 2 2 1 %>90 14 33 33 24 24 %>85 0 2 8 8 7 %>85 73 82 79 77 78 %>80 0 10 23 23 23 %>80 99 99 98 99 99 %>75 1 31 49 50 51 %>75 100 100 100 100 100 %>70 17 66 79 79 80 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0522 0523 0524 0525 0526 PIT 0522 0523 0524 0525 0526 MEAN 57 55 61 66 68 MEAN 58 63 69 70 71 %>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 1 1 %>80 0 0 1 3 2 %>80 0 1 4 6 6 %>75 0 0 3 11 12 %>75 0 6 17 22 24 %>70 0 0 12 30 37 %>70 1 19 44 51 53 PORTLAND_ME PROVIDENCE_RI PWM 0522 0523 0524 0525 0526 PVD 0522 0523 0524 0525 0526 MEAN 51 51 48 50 54 MEAN 55 53 54 59 62 %>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 69 75 78 78 78 MEAN 61 67 74 75 76 %>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 1 2 2 1 %>90 0 0 2 2 1 %>85 0 6 13 11 9 %>85 0 1 8 9 8 %>80 2 22 39 37 37 %>80 0 4 22 25 25 %>75 14 53 71 71 74 %>75 0 14 44 50 53 %>70 46 81 92 92 95 %>70 1 35 68 75 80 SAVANNAH_GA TALLAHASSEE_FL SAV 0522 0523 0524 0525 0526 TLH 0522 0523 0524 0525 0526 MEAN 85 85 85 84 84 MEAN 85 87 87 86 85 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 1 1 1 0 0 %>95 0 2 5 3 2 %>90 9 13 11 5 5 %>90 5 18 27 21 15 %>85 45 53 47 38 39 %>85 48 65 67 61 50 %>80 87 90 86 86 86 %>80 94 95 94 91 86 %>75 99 99 99 99 99 %>75 100 100 100 99 98 %>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 91 91 90 89 MEAN 57 60 67 70 71 %>100 1 3 5 3 1 %>100 0 0 0 0 0 %>95 11 20 21 17 12 %>95 0 0 0 0 0 %>90 45 56 54 50 44 %>90 0 0 0 0 0 %>85 84 87 84 83 82 %>85 0 0 1 2 2 %>80 98 98 97 97 98 %>80 0 0 6 9 9 %>75 100 100 100 100 100 %>75 0 1 17 25 29 %>70 100 100 100 100 100 %>70 0 6 37 50 59 URL IS WWW.WPC.NCEP.NOAA.GOV $$