


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
068 FMUS23 KWNH 170746 PRBEHL DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0745 UTC SAT MAY 17 2025 MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SAT MAY 17 2025 AKRON-CANTON_OH ALBANY_NY CAK 0520 0521 0522 0523 0524 ALB 0520 0521 0522 0523 0524 MIN 41 48 47 45 45 MIN 41 45 44 47 45 %>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 ASHEVILLE_NC ATLANTA_GA AVL 0520 0521 0522 0523 0524 ATL 0520 0521 0522 0523 0524 MIN 61 62 51 45 45 MIN 70 70 59 52 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 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 3 5 0 0 0 %>70 0 1 0 0 0 %>70 50 55 1 0 0 BALTIMORE_MD BIRMINGHAM_AL BWI 0520 0521 0522 0523 0524 BHM 0520 0521 0522 0523 0524 MIN 50 54 53 52 52 MIN 70 69 56 52 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 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 6 7 0 0 0 %>70 0 0 0 0 0 %>70 57 38 0 0 0 BOSTON_MA BUFFALO_NY BOS 0520 0521 0522 0523 0524 BUF 0520 0521 0522 0523 0524 MIN 47 46 46 49 47 MIN 38 41 47 45 45 %>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 0520 0521 0522 0523 0524 CRW 0520 0521 0522 0523 0524 MIN 73 74 67 59 59 MIN 53 59 49 46 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 1 0 0 0 %>85 0 0 0 0 0 %>80 1 9 1 0 0 %>80 0 0 0 0 0 %>75 27 43 8 0 0 %>75 0 0 0 0 0 %>70 80 81 31 1 4 %>70 0 2 0 0 0 CHARLOTTE_NC CHICAGO_IL CLT 0520 0521 0522 0523 0524 ORD 0520 0521 0522 0523 0524 MIN 66 67 58 52 52 MIN 45 44 43 44 48 %>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 1 4 0 0 0 %>75 0 0 0 0 0 %>70 17 27 1 0 0 %>70 0 0 0 0 0 CINCINNATI_OH CLEVELAND_OH LUK 0520 0521 0522 0523 0524 CLE 0520 0521 0522 0523 0524 MIN 51 55 47 46 49 MIN 45 49 49 47 49 %>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 1 0 0 0 %>70 0 0 0 0 0 COLUMBIA_SC COLUMBUS_OH CAE 0520 0521 0522 0523 0524 TZR 0520 0521 0522 0523 0524 MIN 70 71 62 54 55 MIN 47 51 48 46 48 %>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 4 0 0 0 %>80 0 0 0 0 0 %>75 9 23 1 0 0 %>75 0 0 0 0 0 %>70 47 62 7 0 0 %>70 0 0 0 0 0 DAYTON_OH DETROIT_MI MGY 0520 0521 0522 0523 0524 DET 0520 0521 0522 0523 0524 MIN 49 52 47 46 49 MIN 41 45 47 45 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 0 0 %>75 0 0 0 0 0 %>70 0 0 0 0 0 %>70 0 0 0 0 0 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0520 0521 0522 0523 0524 GRR 0520 0521 0522 0523 0524 MIN 65 60 48 49 53 MIN 39 41 42 43 44 %>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 1 0 0 0 0 %>75 0 0 0 0 0 %>70 10 2 0 0 0 %>70 0 0 0 0 0 GREENSBORO_NC HUNTSVILLE_AL GSO 0520 0521 0522 0523 0524 HSV 0520 0521 0522 0523 0524 MIN 62 63 56 50 50 MIN 71 68 54 52 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 0 0 %>80 0 1 0 0 0 %>75 0 2 0 0 0 %>75 2 10 0 0 0 %>70 3 11 0 0 0 %>70 80 38 0 0 0 INDIANAPOLIS_IN KNOXVILLE_TN IND 0520 0521 0522 0523 0524 TYS 0520 0521 0522 0523 0524 MIN 50 52 45 46 49 MIN 66 67 54 49 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 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 4 16 0 0 0 LEXINGTON_KY LOUISVILLE_KY LEX 0520 0521 0522 0523 0524 SDF 0520 0521 0522 0523 0524 MIN 57 59 47 46 49 MIN 60 60 47 48 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 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 0 0 0 %>70 1 2 0 0 0 %>70 3 2 0 0 0 MEMPHIS_TN MIAMI_FL MEM 0520 0521 0522 0523 0524 MIA 0520 0521 0522 0523 0524 MIN 73 64 54 54 59 MIN 80 81 81 78 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 1 3 3 1 1 %>85 0 0 0 0 0 %>85 12 20 22 6 8 %>80 0 0 0 0 0 %>80 48 56 60 31 34 %>75 20 1 0 0 0 %>75 89 91 92 70 71 %>70 90 12 0 0 1 %>70 99 100 100 93 93 MILWAUKEE_WI MOBILE_AL MKE 0520 0521 0522 0523 0524 MOB 0520 0521 0522 0523 0524 MIN 43 42 42 43 46 MIN 75 76 64 59 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 1 0 0 0 %>80 0 0 0 0 0 %>80 9 15 0 0 0 %>75 0 0 0 0 0 %>75 51 55 2 0 1 %>70 0 0 0 0 0 %>70 91 90 12 2 6 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0520 0521 0522 0523 0524 NYC 0520 0521 0522 0523 0524 MIN 69 66 52 51 53 MIN 49 52 50 52 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 0 0 0 %>80 0 0 0 0 0 %>75 2 2 0 0 0 %>75 0 0 0 0 0 %>70 37 18 0 0 0 %>70 0 0 0 0 0 NORFOLK_VA ORLANDO_FL ORF 0520 0521 0522 0523 0524 ORL 0520 0521 0522 0523 0524 MIN 62 61 62 58 57 MIN 76 75 76 70 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 1 0 0 %>80 0 0 0 0 0 %>80 9 8 16 1 0 %>75 0 0 0 0 0 %>75 62 48 65 13 6 %>70 3 5 5 0 0 %>70 97 91 96 51 33 PHILADELPHIA_PA PITTSBURGH_PA PHL 0520 0521 0522 0523 0524 PIT 0520 0521 0522 0523 0524 MIN 46 51 51 51 49 MIN 42 50 47 46 45 %>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 PORTLAND_ME PROVIDENCE_RI PWM 0520 0521 0522 0523 0524 PVD 0520 0521 0522 0523 0524 MIN 45 43 42 46 44 MIN 46 46 46 50 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 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 0520 0521 0522 0523 0524 RIC 0520 0521 0522 0523 0524 MIN 64 64 59 53 53 MIN 56 57 56 51 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 1 0 0 0 %>80 0 0 0 0 0 %>75 0 4 0 0 0 %>75 0 0 0 0 0 %>70 7 18 2 0 0 %>70 0 1 1 0 0 SAVANNAH_GA TALLAHASSEE_FL SAV 0520 0521 0522 0523 0524 TLH 0520 0521 0522 0523 0524 MIN 72 74 68 58 60 MIN 70 73 67 60 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 1 0 0 0 %>85 0 0 0 0 0 %>80 3 9 1 0 0 %>80 1 3 1 0 0 %>75 28 39 9 0 0 %>75 11 32 8 0 0 %>70 73 77 33 2 3 %>70 54 82 32 2 4 TAMPA_FL WASHINGTON_DC TPA 0520 0521 0522 0523 0524 DCA 0520 0521 0522 0523 0524 MIN 78 78 80 73 70 MIN 51 55 54 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 3 2 10 1 0 %>85 0 0 0 0 0 %>80 27 27 50 9 2 %>80 0 0 0 0 0 %>75 73 76 85 36 18 %>75 0 0 0 0 0 %>70 97 97 97 73 55 %>70 0 0 0 0 0 URL IS WWW.WPC.NCEP.NOAA.GOV $$