Thursday’s official high temperature in Baltimore recorded at BWI-Marshall Airport was 100°, short of the record 104° set in 1930. The high temperature at the Maryland Science Center at the Inner Harbor was 103°.
100° or higher temperatures are expected again on Friday and possibly Saturday.
The high temperature forecast map for Friday shows the concentration of 100°+ temperatures will be concentrated along the East Coast, central and southern Plains and the desert Southwest. This is an unusually widespread outbreak of extreme temperatures.
Along the eastern seaboard, the high humidity levels make conditions worse.
When humidity levels are taken into account, it will “feel like” temperatures will be in the range of 110° to 120° during the afternoon hours. An Excessive Heat Warning is in Effect. Check wbaltv.com for tips for staying safe during this heat wave.
The following are some interesting statistics compiled by the National Weather Service.
Update Friday evening at 7:48pm edt.
Additional information from the Sterling, VA office of the National Weather Service on Friday high temperatures.
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 646 PM EDT FRI JULY 22 2011 ...MAXIMUM TEMPERATURE AND HEAT INDEX... THE FOLLOWING LIST SHOWS PRELIMINARY MAXIMUM TEMPERATURES AND HEAT INDICES SO FAR FOR SEVERAL LOCATIONS ON FRIDAY JULY 22 2011 UP THROUGH 6 PM EDT... MAX MAX CITY TEMP F HEAT INDEX F BALTIMORE MD INNER HARBOR...DMH 108 124 WASHINGTON DC REAGAN NATL...DCA 102 121 ANNAPOLIS MD................NAK 101 119 BALTIMORE MD BWI AIRPORT....BWI 106R 118 DULLES VA AIRPORT...........IAD 105R 117 CHARLOTTESVILLE VA..........CHO 102 112 MARTINSBURG WV..............MRB 103 111 HAGERSTOWN MD...............HGR 100 110 BALTIMORE MD-BWI BROKE A DAILY RECORD HIGH FOR THE DATE. DULLES AIRPORT VA-BROKE ITS ALL TIME HIGH TEMPERATURE RECORD...ITS TEMPERATURE RECORDS GO BACK TO NOV 1962. NOTE...THE NWS DOES NOT KEEP HEAT INDEX RECORDS. I would add to this that the Friday morning low temperature at BWI-Marshall Airport was 81 degrees, tying the the "record high minimum" temperature for the date.