Severe Thunderstorm Warning 2, NWS Miami, FL

857 
WWUS52 KMFL 112052
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
452 PM EDT MON MAY 11 2009

FLC021-086-087-112130-
/O.CON.KMFL.SV.W.0002.000000T0000Z-090511T2130Z/
COLLIER FL-MAINLAND MONROE FL-MIAMI-DADE FL-
452 PM EDT MON MAY 11 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR WEST CENTRAL MIAMI-DADE...NORTHEASTERN MAINLAND MONROE AND
EXTREME SOUTHEASTERN COLLIER COUNTIES...

AT 451 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.
THIS STORM WAS LOCATED NEAR FORTYMILE BEND AND THIS STORM WAS NEARLY
STATIONARY.

SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 60
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

LAT...LON 2576 8073 2572 8086 2581 8097 2586 8087
TIME...MOT...LOC 2051Z 045DEG 1KT 2581 8088

$$

KOB

659 
WWUS52 KMFL 112059
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
459 PM EDT MON MAY 11 2009

FLC021-086-087-112109-
/O.CAN.KMFL.SV.W.0002.000000T0000Z-090511T2130Z/
COLLIER FL-MAINLAND MONROE FL-MIAMI-DADE FL-
459 PM EDT MON MAY 11 2009

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MIAMI-DADE...
NORTHEASTERN MAINLAND MONROE AND EXTREME SOUTHEASTERN COLLIER
COUNTIES IS CANCELLED...

THUNDERSTORMS REMAIN IN THE AREA. FREQUENT LIGHTNING...GUSTY WINDS TO
40 MPH...VERY HEAVY RAINFALL AND SMALL HAIL ARE STILL POSSIBLE. STAY
TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES.

LAT...LON 2576 8073 2572 8086 2581 8097 2586 8087
TIME...MOT...LOC 2059Z 045DEG 1KT 2581 8088

$$

KOB

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
239 PM EDT MON MAY 11 2009

.DISCUSSION...A RIDGE AT THE SURFACE CONTINUES TO STRETCH ACROSS
THE ATLANTIC AND INTO THE GULF OF MEXICO WITH A SMALL WEAKNESS IN
THE RIDGE LOCATED ACROSS FLORIDA... THAT WEAKNESS IS MORE OF A
WEAK THERMAL LOW. THERE HAS ALSO BEEN A MID LEVEL RIDGE IN PLACE
THE LAST FEW DAYS, HOWEVER THIS FEATURE IS ERODING WHILE A FEW
MID LEVEL SHORT WAVES MOVE IN. TUESDAY THE MID AND SURFACE LEVEL
RIDGES WILL CONTINUE TO SLOW DEMISE AS A TROUGH CUTS INTO THE
EASTERN THIRD OF THE COUNTRY. THIS MAY LEAD TO INCREASE TSRA TOMORROW
AFTERNOON ALONG WITH TEMPERATURES A FEW DEGREES COOLER OVER THE
INTERIOR, BUT NOT MUCH FOR THE COASTAL SECTIONS OF S FL OUTSIDE OF
A FEW SHOWERS ALONG THE INTERIOR SUBURBS OF THE EAST AND WEST
COASTS. WEDNESDAY AND THURSDAY ANOTHER RIDGE WILL BUILD SOUTHWARD
ALONG THE EAST COAST OF THE U.S. AND INCREASE THE PRESSURE
GRADIENT. THIS IN TURN WILL INCREASE THE EAST FLOW AND ALLOW FOR
MORE MOISTURE INTO MOVE INTO S FL. A SLIGHT INCREASE IN SHRA WILL OCCUR,
BUT THE BIGGEST DIFFERENCE WILL BE FELT OVER THE INTERIOR WITH
TEMPS STAYING AROUND 90 AND NOT 100. THIS WEEKEND THE RIDGE DRIFTS
FARTHER SOUTH WHILE A MID LEVEL RIDGE REDEVELOPS WHICH WILL
DECREASE THE CHANCE OF POPS ONCE AGAIN.

&&

.AVIATION...SE WIND FLOW AROUND 10 KTS SHOULD CONTINUE OVER THE
ERN TERMINALS THROUGH THE REST OF THE AFTERNOON AND EVENING HOURS,
BUT DECREASING TO 3 TO 5 KTS AFTER 03Z. A LIGHT LAND
BREEZE/DRAINAGE FLOW MAY DEVELOP OVER SOME OF THE ERN TERMINALS
RIGHT BEFORE SUNRISE TUESDAY BUT QUICKLY RETURNING TO SE BY MID
MORNING. OVER KAPF, A SEA BREEZE WILL CONTINUE THROUGH THE
AFTERNOON AND EVENING BUT BECOMING LIGHT AND VARIABLE AFTR 05Z. SW
WINDS SHOULD PREVAIL AFTER 15Z TUE. A SHOWER/TSTMS OR TWO MAY
DEVELOP THIS AFTERNOON OVER INLAND AREAS BUT BELIEVE THEY WILL
STAY AWAY FROM THE TERMINALS NOT HAVING ANY SIGNIFICANT IMPACT ON
OPERATIONS. /RHG

&&

.MARINE...TRANQUIL MARINE CONDITIONS WILL CONTINUE ACROSS THE
COASTAL WATERS INTO MID WEEK, HOWEVER ON WEDNESDAY A RIDGE OF HIGH
PRESSURE WILL BUILD SOUTHWARD ALONG THE ATLANTIC COAST AND INTO S
FL. THIS WILL INCREASE THE GRADIENT AND THE EASTERLY WINDS INTO
THE COMING WEEKEND.

&&

.FIRE WEATHER...HOT AND DRY CONDITIONS ARE EXPECTED THROUGH THE
AFTERNOON AND AGAIN ON TUESDAY AFTERNOON, HOWEVER A FEW MORE
CLOUDS AND THUNDERSTORMS MAY DEVELOP OVER INTERIOR LOCATIONS
TOMORROW AFTERNOON KEEPING TEMPS DOWN JUST A FEW COMPARED TO THE
PREVIOUS FEW DAYS. FAIRLY DRY AND HOT CONDITIONS ARE EXPECTED AGAIN
ON WEDNESDAY, BUT AS THE EASTERLY FLOW INCREASES MID WEEK ON
MOISTURE IS EXPECTED TO INCREASE TAKING THE AREA OUT OF THE RFW
CONDITIONS.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  75  88  74  86 / 10 10 10 10
FORT LAUDERDALE  77  87  76  86 / 10 10 10 10
MIAMI            76  89  75  87 / 10 10 10 10
NAPLES           73  88  71  89 / 10 10 10 10

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...RED FLAG WARNING UNTIL 8 PM EDT THIS EVENING FOR FLZ063-FLZ066-
     FLZ067-FLZ070-FLZ071.

     FIRE WEATHER WATCH FROM TUESDAY AFTERNOON THROUGH TUESDAY
     EVENING FOR FLZ063-FLZ066-FLZ067-FLZ070-FLZ071.

AM...NONE.
GM...NONE.
&&

LONG TERM...04/TINGLER
SHORT TERM/AVIATION...47/RHG

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
1059 AM EDT MON MAY 11 2009

FLZ063-066>075-168-172>174-120415-
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-
METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH-
COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE-
1059 AM EDT MON MAY 11 2009

...SLIGHT CHANCE OF THUNDERSTORMS WESTERN INTERIOR TODAY...
...SLIGHT RISK OF WATERSPOUTS ATLANTIC WATERS THIS MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

RIP CURRENTS: SOUTHEAST WINDS NEAR 10 MPH ALONG WITH A LATE
AFTERNOON LOW TIDE WILL RESULT IN A SLIGHT RISK OF RIP CURRENTS
ALONG THE ATLANTIC BEACHES OF SOUTHEAST FLORIDA.

THUNDERSTORMS: THERE IS A SLIGHT CHANCE OF THUNDERSTORMS
ACROSS WESTERN INTERIOR PORTIONS OF SOUTH FLORIDA LATE THIS
AFTERNOON. LIGHTNING STRIKES WILL BE THE MAIN RISK FROM ANY STORMS
THAT DEVELOP.

WATERSPOUTS: LIGHT OVERALL LOW LEVEL WINDS IN THE PRESENCE OF CLOUD
CONVERGENCE LINES MAY LEAD TO WATERSPOUT FORMATION ACROSS THE
ATLANTIC WATERS THIS MORNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ACROSS INTERIOR AREAS
THROUGH WEDNESDAY, WITH THESE SLIGHT CHANCES EXPANDING TO ALL OF
SOUTH FLORIDA LATE THIS WEEK AND POSSIBLY THIS WEEKEND.

THE RISK OF RIP CURRENTS WILL INCREASE ALONG THE ATLANTIC BEACHES
LATE IN THE WEEK AS EASTERLY WINDS WILL BE ON THE INCREASE.

.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.