


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
666 FMUS23 KWNH 161616 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1614 UTC FRI MAY 16 2025 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM FRI MAY 16 2025 AKRON-CANTON_OH ALBANY_NY CAK 0519 0520 0521 0522 0523 ALB 0519 0520 0521 0522 0523 MEAN 55 54 57 56 55 MEAN 54 53 53 52 52 %>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 1 1 0 %>75 0 0 0 0 0 %>70 0 1 5 3 2 %>70 0 0 0 0 0 ASHEVILLE_NC ATLANTA_GA AVL 0519 0520 0521 0522 0523 ATL 0519 0520 0521 0522 0523 MEAN 69 70 69 63 59 MEAN 81 82 79 70 67 %>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 1 1 1 0 %>85 0 0 0 0 0 %>85 11 15 9 4 0 %>80 1 1 2 2 0 %>80 59 69 39 12 3 %>75 9 12 13 7 2 %>75 95 98 79 28 13 %>70 38 53 45 18 7 %>70 100 100 97 49 34 BALTIMORE_MD BIRMINGHAM_AL BWI 0519 0520 0521 0522 0523 BHM 0519 0520 0521 0522 0523 MEAN 66 62 61 61 60 MEAN 81 82 79 68 67 %>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 2 3 0 0 %>85 0 0 0 0 0 %>85 14 20 15 2 0 %>80 0 0 0 0 0 %>80 66 66 41 7 2 %>75 1 1 2 1 0 %>75 97 95 72 19 11 %>70 14 5 9 8 4 %>70 100 100 92 40 32 BOSTON_MA BUFFALO_NY BOS 0519 0520 0521 0522 0523 BUF 0519 0520 0521 0522 0523 MEAN 59 53 51 50 52 MEAN 50 50 52 53 53 %>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 0 %>70 0 0 0 0 0 %>70 0 0 0 0 0 CHARLESTON_SC CHARLESTON_WV CHS 0519 0520 0521 0522 0523 CRW 0519 0520 0521 0522 0523 MEAN 84 85 85 80 72 MEAN 65 65 68 62 59 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 1 0 2 3 0 %>95 0 0 0 0 0 %>90 9 6 15 10 0 %>90 0 0 0 0 0 %>85 44 49 48 26 1 %>85 0 0 2 1 0 %>80 86 93 83 51 9 %>80 0 2 8 4 0 %>75 99 100 98 75 31 %>75 1 8 21 10 2 %>70 100 100 100 91 63 %>70 13 23 42 21 9 CHARLOTTE_NC CHICAGO_IL CLT 0519 0520 0521 0522 0523 ORD 0519 0520 0521 0522 0523 MEAN 76 77 76 71 66 MEAN 51 53 54 53 55 %>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 2 1 0 %>90 0 0 0 0 0 %>85 1 3 10 4 0 %>85 0 0 0 0 0 %>80 15 23 28 12 1 %>80 0 0 0 0 0 %>75 56 64 57 30 7 %>75 0 0 0 0 0 %>70 91 92 82 54 24 %>70 0 1 2 0 0 CINCINNATI_OH CLEVELAND_OH LUK 0519 0520 0521 0522 0523 CLE 0519 0520 0521 0522 0523 MEAN 64 62 65 60 59 MEAN 53 54 57 56 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 1 0 0 %>90 0 0 0 0 0 %>85 0 1 3 0 0 %>85 0 0 0 0 0 %>80 0 3 8 2 0 %>80 0 0 0 0 0 %>75 2 8 17 6 1 %>75 0 0 1 1 0 %>70 12 20 33 15 7 %>70 0 1 3 3 2 COLUMBIA_SC COLUMBUS_OH CAE 0519 0520 0521 0522 0523 TZR 0519 0520 0521 0522 0523 MEAN 81 82 82 75 69 MEAN 61 58 62 59 58 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 1 1 0 %>95 0 0 0 0 0 %>90 1 2 6 3 0 %>90 0 0 0 0 0 %>85 16 23 26 11 0 %>85 0 0 0 0 0 %>80 59 76 62 28 2 %>80 0 0 2 1 0 %>75 93 98 90 52 13 %>75 0 2 7 3 1 %>70 100 100 99 76 40 %>70 2 7 18 9 3 DAYTON_OH DETROIT_MI MGY 0519 0520 0521 0522 0523 DET 0519 0520 0521 0522 0523 MEAN 62 60 63 59 59 MEAN 53 52 55 55 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 1 0 0 %>85 0 0 0 0 0 %>80 0 1 4 1 0 %>80 0 0 0 0 0 %>75 1 5 12 4 1 %>75 0 0 0 0 0 %>70 6 14 25 12 5 %>70 0 0 2 1 1 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0519 0520 0521 0522 0523 GRR 0519 0520 0521 0522 0523 MEAN 72 75 70 61 61 MEAN 52 51 54 54 55 %>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 0 4 4 0 0 %>90 0 0 0 0 0 %>85 2 12 9 0 0 %>85 0 0 0 0 0 %>80 10 27 18 1 0 %>80 0 0 0 0 0 %>75 33 49 33 5 1 %>75 0 0 0 0 0 %>70 65 71 50 15 6 %>70 0 0 2 1 0 GREENSBORO_NC HUNTSVILLE_AL GSO 0519 0520 0521 0522 0523 HSV 0519 0520 0521 0522 0523 MEAN 72 71 70 67 63 MEAN 81 82 78 66 66 %>100 0 0 0 0 0 %>100 0 0 1 0 0 %>95 0 0 0 0 0 %>95 0 1 2 0 0 %>90 0 0 1 0 0 %>90 2 6 8 1 0 %>85 0 1 3 1 0 %>85 17 27 20 2 1 %>80 2 5 10 4 0 %>80 55 63 39 8 3 %>75 21 25 26 14 2 %>75 89 90 62 18 11 %>70 71 60 49 34 12 %>70 99 99 81 35 28 INDIANAPOLIS_IN KNOXVILLE_TN IND 0519 0520 0521 0522 0523 TYS 0519 0520 0521 0522 0523 MEAN 63 63 63 59 58 MEAN 74 77 74 64 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 1 0 0 0 %>90 0 2 1 0 0 %>85 0 2 1 0 0 %>85 2 9 6 2 0 %>80 0 6 4 1 0 %>80 13 31 20 5 2 %>75 3 13 10 3 1 %>75 40 64 47 14 7 %>70 14 26 22 10 4 %>70 73 88 75 28 19 LEXINGTON_KY LOUISVILLE_KY LEX 0519 0520 0521 0522 0523 SDF 0519 0520 0521 0522 0523 MEAN 67 68 69 61 59 MEAN 69 70 70 62 60 %>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 1 2 0 0 %>90 0 2 3 0 0 %>85 0 3 5 1 0 %>85 0 6 8 1 0 %>80 0 9 13 3 0 %>80 2 15 17 3 0 %>75 5 22 28 8 1 %>75 13 31 32 8 1 %>70 28 43 47 18 4 %>70 41 51 50 19 6 MEMPHIS_TN MIAMI_FL MEM 0519 0520 0521 0522 0523 MIA 0519 0520 0521 0522 0523 MEAN 83 83 75 67 67 MEAN 88 89 91 91 88 %>100 0 0 1 0 0 %>100 0 0 2 2 3 %>95 0 2 2 0 0 %>95 2 8 17 17 13 %>90 4 10 7 0 0 %>90 25 43 59 61 36 %>85 29 34 16 2 0 %>85 79 87 92 94 67 %>80 73 69 31 6 3 %>80 99 99 100 100 90 %>75 96 91 51 16 13 %>75 100 100 100 100 98 %>70 100 99 70 35 34 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0519 0520 0521 0522 0523 MOB 0519 0520 0521 0522 0523 MEAN 45 48 49 50 51 MEAN 84 85 85 77 74 %>100 0 0 0 0 0 %>100 0 0 0 1 0 %>95 0 0 0 0 0 %>95 0 0 3 2 0 %>90 0 0 0 0 0 %>90 1 1 18 7 1 %>85 0 0 0 0 0 %>85 32 44 52 19 5 %>80 0 0 0 0 0 %>80 94 98 85 38 18 %>75 0 0 0 0 0 %>75 100 100 98 60 42 %>70 0 0 0 0 0 %>70 100 100 100 80 70 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0519 0520 0521 0522 0523 NYC 0519 0520 0521 0522 0523 MEAN 78 81 76 64 64 MEAN 62 59 59 56 57 %>100 0 0 1 0 0 %>100 0 0 0 0 0 %>95 0 2 3 0 0 %>95 0 0 0 0 0 %>90 2 8 8 0 0 %>90 0 0 0 0 0 %>85 12 26 19 1 0 %>85 0 0 0 0 0 %>80 38 55 35 5 1 %>80 0 0 0 0 0 %>75 71 82 55 12 5 %>75 0 0 0 0 0 %>70 92 95 73 27 19 %>70 4 2 3 0 1 NORFOLK_VA ORLANDO_FL ORF 0519 0520 0521 0522 0523 ORL 0519 0520 0521 0522 0523 MEAN 72 68 69 71 65 MEAN 90 91 90 88 81 %>100 0 0 0 0 0 %>100 0 1 0 1 0 %>95 0 0 0 0 0 %>95 6 13 6 9 1 %>90 0 0 0 1 0 %>90 49 64 51 37 7 %>85 0 0 1 3 0 %>85 94 97 95 76 27 %>80 2 1 5 12 0 %>80 100 100 100 96 59 %>75 19 8 18 30 4 %>75 100 100 100 100 86 %>70 66 33 42 55 20 %>70 100 100 100 100 97 PHILADELPHIA_PA PITTSBURGH_PA PHL 0519 0520 0521 0522 0523 PIT 0519 0520 0521 0522 0523 MEAN 64 60 60 57 57 MEAN 57 56 59 57 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 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 2 0 0 %>75 0 0 2 1 0 %>70 7 1 7 2 1 %>70 0 1 7 4 2 PORTLAND_ME PROVIDENCE_RI PWM 0519 0520 0521 0522 0523 PVD 0519 0520 0521 0522 0523 MEAN 55 50 48 47 48 MEAN 60 55 53 52 52 %>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 0 %>70 0 0 0 0 0 %>70 0 0 0 0 0 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0519 0520 0521 0522 0523 RIC 0519 0520 0521 0522 0523 MEAN 74 73 73 71 64 MEAN 70 66 65 66 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 2 1 0 %>90 0 0 0 0 0 %>85 0 2 8 4 0 %>85 0 0 1 1 0 %>80 4 12 20 13 0 %>80 0 0 3 4 0 %>75 41 38 40 31 4 %>75 4 5 10 14 1 %>70 89 72 62 54 18 %>70 45 23 27 32 8 SAVANNAH_GA TALLAHASSEE_FL SAV 0519 0520 0521 0522 0523 TLH 0519 0520 0521 0522 0523 MEAN 86 87 86 81 73 MEAN 85 85 86 82 75 %>100 0 0 0 1 0 %>100 0 0 0 2 0 %>95 1 1 2 4 0 %>95 0 0 2 6 0 %>90 15 18 18 13 0 %>90 6 3 19 16 1 %>85 62 72 59 31 2 %>85 47 44 62 35 5 %>80 95 98 92 55 12 %>80 93 96 93 58 20 %>75 100 100 100 78 36 %>75 100 100 100 78 48 %>70 100 100 100 92 69 %>70 100 100 100 92 77 TAMPA_FL WASHINGTON_DC TPA 0519 0520 0521 0522 0523 DCA 0519 0520 0521 0522 0523 MEAN 89 89 89 89 82 MEAN 66 62 62 62 60 %>100 0 0 0 3 0 %>100 0 0 0 0 0 %>95 2 5 7 14 2 %>95 0 0 0 0 0 %>90 33 43 44 41 9 %>90 0 0 0 0 0 %>85 87 90 89 74 30 %>85 0 0 0 0 0 %>80 100 100 99 93 60 %>80 0 0 0 0 0 %>75 100 100 100 99 85 %>75 1 0 3 3 1 %>70 100 100 100 100 97 %>70 17 5 13 11 6 URL IS WWW.WPC.NCEP.NOAA.GOV $$