Interactive NWS Alert Information
Event Extended (time) for Montgomery County
Heat Advisory valid from Jun 20 12 12:00 PM to Jun 21 12 10:00 PM EDT
Sent to SMS and E-Mail at Jun 20 12 3:20 AM EDT
Radar Time: Jun 20 2012 12:00 PM EDT
DCZ001-MDZ006-007-009>011-013-014-016>018-VAZ052>057-201530- /O.EXT.KLWX.HT.Y.0002.120620T1600Z-120622T0200Z/ DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD- SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS- CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- INCLUDING THE CITIES OF...WASHINGTON...GAITHERSBURG...COLUMBIA... BALTIMORE...ANNAPOLIS...WALDORF...ST MARYS CITY...MANASSAS... MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH... FREDERICKSBURG 321 AM EDT WED JUN 20 2012 ...HEAT ADVISORY NOW IN EFFECT FROM NOON TODAY TO 10 PM EDT THURSDAY... * HEAT INDEX VALUES...100 TO 105 DEGREES TODAY...AROUND 105 DEGREES THURSDAY. OVERNIGHT HEAT INDEX REMAINING ABOVE 80 DEGREES IN THE SUBURBS AND NEAR 90 DEGREES IN THE URBAN CENTERS. * TEMPERATURES...HIGH TEMPERATURES TODAY IN THE MID TO UPPER 90S. LOW TEMPERATURES TONIGHT IN THE MID 70S AND LOWER 80S. HIGH TEMPERATURES THURSDAY IN THE UPPER 90S TO AROUND 100. * IMPACT...THOSE OUTDOORS FOR AN EXTENDED PERIOD OF TIME AS WELL AS THOSE PARTICULARLY SENSITIVE TO THE HEAT WILL BE AT RISK FOR HEAT EXHAUSTION AND OTHER HEAT-RELATED ILLNESS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK IN ON RELATIVES AND NEIGHBORS. TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE...RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER. TO REDUCE RISK DURING OUTDOOR WORK...THE OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN EMERGENCY - CALL 9 1 1. &&