Red Flag Warning 47, NWS Miami, FL

000 
WWUS82 KMFL 231722
RFWMFL

RED FLAG WARNING
NATIONAL WEATHER SERVICE MIAMI FL
122 PM EDT MON APR 23 2007

...RED FLAG WARNING IN EFFECT THIS AFTERNOON THROUGH EARLY
EVENING FOR 4 OR MORE HOURS OF RELATIVE HUMIDITY BELOW 35 PERCENT
FOR GLADES, HENDRY, AND ALL OF COLLIER COUNTIES...

FLZ067-071-073-075-231830-
/O.CAN.KMFL.FW.W.0047.000000T0000Z-070423T2300Z/
PALM BEACH WESTERN-WESTERN BROWARD-WESTERN DADE-MAINLAND MONROE-
122 PM EDT MON APR 23 2007

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS CANCELED THE RED FLAG
WARNING. 

EASTERLY LOW-LEVEL FLOW HAS BEEN VERY STRONG TODAY, AND HAS PUSHED
AMPLE MOISTURE INLAND TO KEEP DEWPOINTS FROM DROPPING VERY MUCH.
THIS IS COMBINING WITH SOME CLOUDINESS WHICH IS PREVENTING
TEMPERATURES FROM RISING TO KEEP THESE LOCATIONS ABOVE RED FLAG
CRITERIA...AND THESE LOCATIONS MAY DROP BELOW 35 PERCENT RELATIVE
HUMIDITY FOR A SHORT TIME LATE THIS AFTERNOON BUT THIS WILL NOT
LAST MORE THAN AN HOUR OR TWO. THUS, THE RED FLAG WARNING HAS BEEN
CANCELED.

$$

FLZ063-066-069-070-232300-
/O.CON.KMFL.FW.W.0047.000000T0000Z-070423T2300Z/
GLADES-HENDRY-WESTERN COLLIER-EASTERN COLLIER-
122 PM EDT MON APR 23 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING.

A DRY AIRMASS WILL REMAIN OVER WESTERN PARTS OF SOUTH FLORIDA
THROUGH THIS EVENING. THE DRY AIR...COUPLED WITH ABUNDANT HEATING
OF THE SURFACE AIRMASS...WILL ALLOW RELATIVE HUMIDITY VALUES TO
FALL BELOW 35 PERCENT FOR 4 OR MORE CONSECUTIVE HOURS FROM EARLY
AFTERNOON INTO THE EARLY EVENING. ADDITIONALLY...20 FOOT WIND
SPEEDS WILL LIKELY APPROACH OR SLIGHTLY EXCEED 15 MPH ACROSS A
MAJORITY OF THE WARNING AREA.

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.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
256 PM EDT SUN APR 22 2007

.DISCUSSION...
MODELS ARE IN GOOD AGREEMENT ONCE AGAIN FOR THE NEXT SEVERAL DAYS. A
LARGE, DEEP-LAYERED RIDGE WILL BUILD OVER THE FL VICINITY THROUGH
THE MID WEEK PERIOD BEFORE GRADUALLY SHIFTING INTO THE WESTERN
ATLANTIC AS SEVERAL SHORTWAVES SHEAR OUT THROUGH THE CENTRAL AND
EASTERN CONUS AND ALLOW FOR SOME DEAMPLIFICATION OF THE UPPER FLOW.
AT THE SURFACE...LARGE SPRAWLING HIGH PRESSURE WILL MOVE ONLY SLOWLY
EAST THROUGH THE WESTERN ATLANTIC THROUGH MID-WEEK, ALLOWING FOR
EASTERLY SURFACE FLOW TO CONTINUE AT A MODERATE PACE.  MODEL
SOUNDINGS SHOW THE BOUNDARY LAYER WILL BE FAIRLY DRY...SO THE WIDELY
SCATTERED EAST COAST SHOWERS THAT TYPICALLY HAPPEN IN AN EASTERLY
FLOW REGIME SUCH AS THIS ONE SEEM LESS LIKELY THAN NORMAL. AS A
RESULT, PARTLY CLOUDY SKIES AND LITTLE IF ANY RAINFALL CAN BE
EXPECTED THE NEXT SEVERAL DAYS. BY LATE WEDNESDAY INTO THURSDAY THE
SURFACE HIGH SHIFTS TO THE EAST AND OUR FLOW BECOMES SOUTHEASTERLY
AND EVENTUALLY SOUTHERLY LATE IN THE WEEK...WHICH SHOULD ALLOW FOR
WARMING TEMPERATURES AND SOME INCREASE IN MOISTURE...BUT NOT ENOUGH
FOR ANY SIGNIFICANT RAINFALL. INTERIOR LOCATIONS WILL LIKELY REACH
90 DEGREES BY MID WEEK AS THE UPPER RIDGE OVERHEAD COMBINES WITH
850MB TEMPS OF AROUND +14C AND VERY DRY SOIL TO CREATE OPTIMAL
HEATING CONDITIONS.

&&

.AVIATION...
VFR CONDITIONS EXPECTED THROUGH MONDAY WITH MAINLY SCATTERED CLOUDS
BETWEEN 3500 AND 5000 FEET. NORTHEAST TO EAST WINDS 12 TO 16 KT AND
A LITTLE GUSTY ESPECIALLY EAST COAST TERMINALS EXCEPT FOR A LITTLE
LESS WIND LATER TONIGHT AND EARLY MONDAY MORNING. TOO DRY AND
EASTERLIES TOO SHALLOW FOR PRECIPITATION.

&&

.MARINE...
EASTERLY WINDS OF 15 TO 20 KNOTS WITH HIGHER GUSTS WILL LIKELY
CONTINUE THROUGH MONDAY. THUS A SMALL CRAFT ADVISORY WILL
REMAIN IN EFFECT FOR THE ATLANTIC WATERS...AND BOATERS ON
BISCAYNE BAY AND THE GULF OF MEXICO SHOULD EXERCISE CAUTION FOR WINDS
TONIGHT. GULF STREAM SEAS WILL RUN AROUND 8 FEET INTO THIS EVENING
BEFORE SUBSIDING TO AROUND 7 FEET OVERNIGHT AND MONDAY.

&&

.FIRE WEATHER...
RED FLAG WARNING CONTINUES FOR ALL BUT THE EAST COAST METRO ZONES
THROUGH THIS EVENING AS DEWPOINTS HAVE DROPPED TO AROUND 50 WHICH
GIVES RHS OF 30 TO 35 PERCENT MOST AREAS SINCE TEMPS HAVE CLIMBED
INTO THE LOW 80S. SIMILAR CONDITIONS ARE EXPECTED ACROSS THESE
AREAS TOMORROW AS AN ABUNDANCE OF MID LEVEL DRY AIR WILL REMAIN IN
PLACE...AND HAVE POSTED A FIRE WEATHER WATCH FOR THESE SAME AREAS
TOMORROW.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  67  79  68  80 / -  0 -  -
FORT LAUDERDALE  68  81  71  82 / -  0 -  -
MIAMI            66  81  68  82 / -  0 -  -
NAPLES           60  85  63  85 / -  0 -  -

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...RED FLAG WARNING UNTIL 7 PM EDT THIS EVENING FOR FLZ063-FLZ066-
     FLZ067-FLZ069-FLZ070-FLZ071-FLZ073-FLZ075.

     FIRE WEATHER WATCH FROM MONDAY AFTERNOON THROUGH MONDAY EVENING
     FOR FLZ063-FLZ066-FLZ067-FLZ069-FLZ070-FLZ071-FLZ073-FLZ075.

AM...SMALL CRAFT ADVISORY UNTIL 8 PM EDT MONDAY FOR AMZ650-AMZ651-
     AMZ670-AMZ671.

GM...NONE.
&&

PUBLIC/FIRE/MARINE...STRASSBERG
AVIATION...18/GR

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
711 PM EDT SUN APR 22 2007

FLZ063-066>075-231115-
GLADES-HENDRY-PALM BEACH WESTERN-PALM BEACH EASTERN-
WESTERN COLLIER-EASTERN COLLIER-WESTERN BROWARD-
BROWARD METROPOLITAN-WESTERN DADE-DADE METROPOLITAN-
MAINLAND MONROE-
711 PM EDT SUN APR 22 2007

...HIGH RISK OF RIP CURRENTS EAST COAST BEACHES TONIGHT...
...SEAS 6 TO 8 FEET IN THE GULF STREAM THROUGH MONDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...THIS EVENING

RIP CURRENTS: A HIGH RISK OF RIP CURRENTS WILL CONTINUE ALONG THE
EAST COAST BEACHES THIS EVENING AND TONIGHT...AS MODERATE TO
STRONG NORTHEASTERLY WINDS CONTINUE. IN PALM BEACH COUNTY THE
WINDS WILL COMBINE WITH A MODERATE NORTHEAST SWELL TO MAKE THE
RISK OF RIP CURRENTS EVEN HIGHER.

PERSONS VENTURING INTO THE WATER ARE URGED TO USE EXTREME
CAUTION ESPECIALLY DURING TIMES OF LOW TIDE WHICH WILL OCCUR
BETWEEN 7 AND 730 PM THIS EVENING AND AROUND 7 AM ON MONDAY.

WAVES: NORTHEAST WINDS OF 15 TO 20 KNOTS WILL CONTINUE ACROSS THE
COASTAL WATERS OF SOUTH FLORIDA THROUGH MONDAY MORNING. THIS WILL RESULT
IN SEAS OF 6 TO 8 FEET IN THE GULF STREAM...AND A SMALL CRAFT
ADVISORY CONTINUES IN EFFECT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

GULF STREAM SEAS WILL HOVER IN THE 4 TO 6 FOOT RANGE THROUGH
TUESDAY MORNING...BEFORE SLOWLY SUBSIDING AS NORTHEAST WINDS
DECREASE TO 10 TO 20 MPH.

NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.