...RED FLAG WARNING FOR ALL SOUTH FLORIDA FIRE WEATHER ZONES BETWEEN 11 AM EST AND 5 PM EST TODAY FOR FOUR OR MORE CONSECUTIVE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 5 PM EST THIS AFTERNOON. A STRONG COLD FRONT WILL CONTINUE TO PRESS SOUTHEASTWARD AND AWAY FROM SOUTH FLORIDA TODAY. IN THE WAKE OF THE RECENT FRONTAL PASSAGE...A COOLER AND DRIER CANADIAN AIR MASS HAS SPREAD OVER THE REGION. MINIMUM AFTERNOON RELATIVE HUMIDITY VALUES WILL BE WELL BELOW CRITICAL VALUES FOR A SIGNIFICANT FIRE WEATHER THREAT...WITH STRONG NORTHWEST FLOW IN THE TRANSPORT LAYER ALSO ENHANCING THE THREAT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. &&
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON FOR ALL OF SOUTH FLORIDA FROM 10 AM EST UNTIL 6 PM EST FOR 4 OR MORE HOURS OF BELOW 35 PERCENT RELATIVE HUMIDITIES... THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON. MUCH DRIER AIR WILL WORK INTO SOUTH FLORIDA TONIGHT INTO FRIDAY WHICH WILL ALLOW FOR THE DEW POINTS TO FALL INTO THE 30S. TEMPERATURES WILL ALSO WARM UP TO AROUND 70 OVER ALL OF SOUTH FLORIDA. THIS WILL ALLOW FOR THE RELATIVE HUMIDITIES TO FALL BELOW 35 PERCENT FOR 4 HOURS OR MORE LATE FRIDAY MORNING INTO FRIDAY AFTERNOON. THEREFORE...A FIRE WEATHER WATCH HAS BEEN ISSUED FOR ALL OF SOUTH FLORIDA FROM 10 AM EST UNTIL 6 PM EST. THE KEETCH BYRAM DROUGHT INDEX IS ALSO RUNNING HIGH OVER THE NORTHERN PORTION OF THE SOUTH FLORIDA. IN GLADES COUNTY IT IS RUNNING BETWEEN 550 AND 600...AND IN HENDRY AND PALM BEACH COUNTIES IT IS RUNNING AROUND 500. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR IN THE NEXT 48 HOURS. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. &&Note: In order to comply with National Weather Service safety tests, occasionally this product will display test alerts, which are normally conducted during calm, quiet weather.
(11/27/2009 4:35 AM)
(11/27/2009 4:00 AM)
(11/6/2009 5:30 AM)