


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
302 FMUS23 KWNH 200653 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0651 UTC SUN APR 20 2025 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SUN APR 20 2025 AKRON-CANTON_OH ALBANY_NY CAK 0423 0424 0425 0426 0427 ALB 0423 0424 0425 0426 0427 MEAN 57 63 66 57 52 MEAN 51 55 58 56 51 %>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 2 0 0 %>80 0 0 0 0 0 %>75 0 1 8 2 0 %>75 0 0 0 0 0 %>70 0 7 27 6 0 %>70 0 0 3 3 0 ASHEVILLE_NC ATLANTA_GA AVL 0423 0424 0425 0426 0427 ATL 0423 0424 0425 0426 0427 MEAN 64 64 67 67 63 MEAN 73 74 76 76 72 %>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 2 3 %>80 0 0 0 0 2 %>80 2 6 11 17 13 %>75 0 0 3 4 6 %>75 30 41 56 58 35 %>70 5 5 23 24 18 %>70 84 87 93 91 64 BALTIMORE_MD BIRMINGHAM_AL BWI 0423 0424 0425 0426 0427 BHM 0423 0424 0425 0426 0427 MEAN 62 63 65 66 60 MEAN 72 74 76 75 74 %>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 1 %>85 0 0 0 0 0 %>85 0 0 1 1 4 %>80 0 0 0 2 1 %>80 1 7 12 14 17 %>75 0 0 2 10 4 %>75 20 41 58 51 44 %>70 3 2 15 29 12 %>70 78 86 94 87 74 BOSTON_MA BUFFALO_NY BOS 0423 0424 0425 0426 0427 BUF 0423 0424 0425 0426 0427 MEAN 53 52 55 57 52 MEAN 48 56 59 52 47 %>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 1 0 %>75 0 0 2 0 0 %>70 0 0 1 3 0 %>70 0 0 7 0 0 CHARLESTON_SC CHARLESTON_WV CHS 0423 0424 0425 0426 0427 CRW 0423 0424 0425 0426 0427 MEAN 77 76 76 77 75 MEAN 65 68 71 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 0 0 1 %>90 0 0 0 0 0 %>85 0 0 0 0 7 %>85 0 0 1 1 1 %>80 17 11 7 14 23 %>80 0 0 6 4 3 %>75 79 65 61 75 51 %>75 0 6 24 12 8 %>70 100 98 99 99 78 %>70 9 32 57 29 19 CHARLOTTE_NC CHICAGO_IL CLT 0423 0424 0425 0426 0427 ORD 0423 0424 0425 0426 0427 MEAN 73 71 74 74 69 MEAN 59 60 57 51 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 2 %>90 0 0 0 0 0 %>85 0 0 0 0 5 %>85 0 0 0 0 0 %>80 2 1 5 6 13 %>80 0 1 0 0 0 %>75 24 16 35 36 28 %>75 1 3 2 0 0 %>70 76 63 83 80 47 %>70 5 12 7 0 0 CINCINNATI_OH CLEVELAND_OH LUK 0423 0424 0425 0426 0427 CLE 0423 0424 0425 0426 0427 MEAN 63 66 68 62 58 MEAN 55 60 62 54 50 %>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 1 1 1 0 %>80 0 0 1 0 0 %>75 0 5 9 6 2 %>75 0 0 5 0 0 %>70 3 24 37 17 7 %>70 0 4 16 2 0 COLUMBIA_SC COLUMBUS_OH CAE 0423 0424 0425 0426 0427 TZR 0423 0424 0425 0426 0427 MEAN 76 75 76 76 73 MEAN 61 65 68 60 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 0 0 2 %>90 0 0 0 0 0 %>85 0 0 0 1 6 %>85 0 0 0 0 0 %>80 12 9 9 14 18 %>80 0 0 2 1 0 %>75 63 54 58 60 38 %>75 0 2 13 4 0 %>70 97 94 96 95 62 %>70 1 14 38 13 2 DAYTON_OH DETROIT_MI MGY 0423 0424 0425 0426 0427 DET 0423 0424 0425 0426 0427 MEAN 63 66 68 61 56 MEAN 56 59 61 54 50 %>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 1 2 1 0 %>80 0 0 0 0 0 %>75 0 5 12 5 1 %>75 0 0 3 0 0 %>70 3 23 37 15 4 %>70 0 3 11 2 0 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0423 0424 0425 0426 0427 GRR 0423 0424 0425 0426 0427 MEAN 66 70 69 66 62 MEAN 57 61 59 53 51 %>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 1 0 %>85 0 0 0 0 0 %>80 0 3 0 3 1 %>80 0 0 0 0 0 %>75 0 17 7 11 6 %>75 0 2 2 0 0 %>70 7 50 41 29 17 %>70 1 10 7 1 0 GREENSBORO_NC HUNTSVILLE_AL GSO 0423 0424 0425 0426 0427 HSV 0423 0424 0425 0426 0427 MEAN 69 68 72 71 66 MEAN 72 73 75 74 72 %>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 1 1 %>85 0 0 0 0 3 %>85 0 1 1 5 5 %>80 0 0 1 3 7 %>80 2 8 13 19 16 %>75 7 3 18 21 18 %>75 21 36 50 46 37 %>70 40 30 66 63 34 %>70 67 74 87 76 62 INDIANAPOLIS_IN KNOXVILLE_TN IND 0423 0424 0425 0426 0427 TYS 0423 0424 0425 0426 0427 MEAN 63 67 67 60 56 MEAN 69 70 72 71 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 0 %>90 0 0 0 0 1 %>85 0 0 0 0 0 %>85 0 0 0 2 3 %>80 0 1 1 1 0 %>80 1 1 3 8 9 %>75 0 8 8 3 1 %>75 10 11 24 27 23 %>70 5 29 30 11 3 %>70 43 46 68 57 44 LEXINGTON_KY LOUISVILLE_KY LEX 0423 0424 0425 0426 0427 SDF 0423 0424 0425 0426 0427 MEAN 64 67 69 64 61 MEAN 65 68 70 65 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 1 %>85 0 0 0 0 0 %>80 0 0 0 2 2 %>80 0 2 1 3 2 %>75 0 5 7 8 7 %>75 0 11 11 9 7 %>70 3 27 42 23 17 %>70 6 38 47 25 18 MEMPHIS_TN MIAMI_FL MEM 0423 0424 0425 0426 0427 MIA 0423 0424 0425 0426 0427 MEAN 72 73 74 72 70 MEAN 79 79 80 81 81 %>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 2 %>85 0 0 1 3 5 %>80 1 4 8 7 7 %>80 37 39 56 63 67 %>75 18 32 40 28 23 %>75 99 99 100 99 99 %>70 69 79 82 62 49 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0423 0424 0425 0426 0427 MOB 0423 0424 0425 0426 0427 MEAN 50 51 50 46 46 MEAN 76 77 77 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 0 0 0 0 %>85 0 0 0 1 2 %>80 0 0 0 0 0 %>80 4 11 10 18 23 %>75 0 0 0 0 0 %>75 59 72 79 75 75 %>70 0 0 0 0 0 %>70 99 99 100 99 98 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0423 0424 0425 0426 0427 NYC 0423 0424 0425 0426 0427 MEAN 69 72 74 71 68 MEAN 58 59 58 60 57 %>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 1 2 2 %>85 0 0 0 0 0 %>80 0 6 10 8 8 %>80 0 0 0 0 0 %>75 4 27 40 26 21 %>75 0 0 0 1 1 %>70 40 64 79 54 42 %>70 0 0 2 5 4 NORFOLK_VA ORLANDO_FL ORF 0423 0424 0425 0426 0427 ORL 0423 0424 0425 0426 0427 MEAN 64 62 67 70 64 MEAN 80 78 79 80 80 %>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 1 0 0 2 2 %>80 0 0 0 3 2 %>80 44 16 27 44 44 %>75 0 0 5 16 8 %>75 98 95 95 97 96 %>70 8 2 28 47 22 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0423 0424 0425 0426 0427 PIT 0423 0424 0425 0426 0427 MEAN 60 63 62 64 59 MEAN 58 64 67 60 54 %>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 1 0 %>80 0 0 1 1 0 %>75 0 0 1 5 2 %>75 0 1 9 4 0 %>70 1 4 7 19 7 %>70 0 8 31 13 1 PORTLAND_ME PROVIDENCE_RI PWM 0423 0424 0425 0426 0427 PVD 0423 0424 0425 0426 0427 MEAN 47 47 48 50 46 MEAN 54 53 54 56 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 1 0 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0423 0424 0425 0426 0427 RIC 0423 0424 0425 0426 0427 MEAN 72 70 73 74 68 MEAN 67 65 69 71 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 1 %>90 0 0 0 0 0 %>85 0 0 0 0 4 %>85 0 0 0 1 1 %>80 3 1 4 7 11 %>80 0 0 2 7 4 %>75 24 12 33 37 24 %>75 2 1 14 25 11 %>70 69 53 81 80 42 %>70 21 13 46 54 25 SAVANNAH_GA TALLAHASSEE_FL SAV 0423 0424 0425 0426 0427 TLH 0423 0424 0425 0426 0427 MEAN 78 77 77 78 77 MEAN 76 76 77 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 1 %>90 0 0 0 0 0 %>85 1 0 0 1 6 %>85 0 0 0 1 2 %>80 26 14 11 20 27 %>80 7 8 13 26 34 %>75 88 79 75 83 61 %>75 68 72 81 90 89 %>70 100 100 100 100 88 %>70 99 100 100 100 100 TAMPA_FL WASHINGTON_DC TPA 0423 0424 0425 0426 0427 DCA 0423 0424 0425 0426 0427 MEAN 81 81 81 81 81 MEAN 64 65 67 68 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 9 8 13 11 13 %>85 0 0 0 1 0 %>80 63 60 66 64 68 %>80 0 0 1 6 2 %>75 98 97 98 98 98 %>75 0 0 8 18 6 %>70 100 100 100 100 100 %>70 6 7 30 40 17 URL IS WWW.WPC.NCEP.NOAA.GOV $$