Severe Thunderstorm Warning 43, NWS Melbourne, FL

Issued

Aug 12, 2002, 5:59 PM EDT (21:59 UTC)

Expired

Aug 12, 2002, 7:00 PM EDT

In force

61 min

Issued by

NWS Melbourne, FL

Area

Counties, with a storm outline in the text

Counties Indian River County, FL, Osceola County, FL

The Melbourne radar (KMLB), 50 km from the middle of the area, began a volume at 22:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

323 
WUUS52 KMLB 122159
SVRMLB
FLC061-097-122300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
556 PM EDT MON AUG 12 2002

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN INDIAN RIVER COUNTY
  SOUTH OSCEOLA COUNTY
  IN EAST CENTRAL FLORIDA

* UNTIL 700 PM EDT

* AT 551 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM NEAR BLUE CYPRESS LAKE...MOVING VERY SLOWY
  NORTH AT 5 MPH.

  ANOTHER SEVERE STORM WAS JUST A FEW MILES WEST OF YEEHAW JUNCTION
  IN SOUTH OSCEOLA COUNTY AND WAS ALSO MOVING SLOWLY NORTH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. IF
THE STORM APPROACHES YOU...MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR.

LARGE HAIL...EXCESSIVE LIGHTNING AND DAMAGING WINDS ARE LIKELY. TAKE 
COVER IN A STURDY BUILDING UNTIL THE STORM PASSES. LOCALLY HEAVY 
RAIN MAY ALSO ACCUMULATE TO 3 TO 4 INCHES.

LAT...LON 2783 8118 2766 8112 2765 8067 2781 8069

$$
DWS

NWS Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 12, 2:00 PM EDT, 3 hours 59 minutes earlier.

EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
200 PM EDT MON AUG 12 2002

CURRENTLY/TONIGHT...CONVECTION SLOW GETTING STARTED...EXCEPT FOR
SOME CELLS ALONG REMNANT BOUNDARY OVER NORTHERN SECTIONS.  THE
ATMOSPHERE MAY BE SLIGHTLY SUPPRESSED BETWEEN CONVECTIVE COMPLEXES
TO OUR EAST AND WEST.  STILL THINK THAT HIGH MOISTURE WILL
EVENTUALLY LEAD TO A GENEROUS COVERAGE...JUST A LITTLE LATER THAN
PREVIOUSLY THOUGHT.  EVENING POPS WILL DEPEND ON LATE AFTERNOON
RADAR TRENDS.

TUE/WED...DO NOT SEE MUCH DIFFERENCE FROM EARLIER RUNS AS WEAK
SURFACE TROUGH LIFTS NORTH OF THE AREA WITH RIDGE AXIS BUILDING
ACROSS THE CENTRAL PENINSULA BEHIND IT.  EXPECT THAT DEEPEST
MOISTURE WILL SHIFT NORTH OF THE AREA AS A RESULT.  UPPER LEVEL
WINDS ARE FORECAST TO BECOME VERY LIGHT SO DO NOT SEE ANY SIGN OF
SIGNIFICANT DRYING/SUPPRESSION.  CURRENT FORECAST OF 50/40 POPS
LOOKS OKAY.

THU-MON...SURFACE RIDGE AXIS IS STILL PROGGED TO SHIFT NORTH OF THE
AREA WITH PRESSURES ABOVE 1020 MB THROUGH SATURDAY.  AVN SHOWS WEAK
H85 TROUGH APPROACHING THU...WHICH IS LIKELY THE FEATURE NORTH OF
PUERTO RICO AT THE PRESENT TIME.  THIS MAY KEEP POPS AT OR ABOVE
CLIMO FOR ANOTHER DAY...BUT FOR FRI/SAT H50 RIDGE WITH WARMING ALOFT
(MINUS 5-6) IS PROGGED OVER THE AREA.  THIS SHOULD REDUCE COVERAGE
OF RAINFALL TO BELOW CLIMO LEVELS.  UPPER RIDGE IS FORECAST TO
RETROGRADE AND WEAKEN BY SUNDAY WITH SURFACE PRESSURES LOWERING...
WHICH MAY INCREASE RAIN CHANCES TO CLIMO BUT WILL NOT TRY TO
DIFFERENTIATE AT THIS POINT.

MARINE...WINDS SUBSIDING AS EARLIER SUSPECTED THEREFORE FORECAST
SHOULD TREND TOWARDS 10 KNOTS WITH RIDGE IN THE VICINITY FOR THE
NEXT FEW DAYS.  TOWARDS THE LATTER PART OF THE WEEK...THE WEAK WAVE
ELUDED TO ABOVE MAY INCREASE WINDS OVER THE SOUTH SLIGHTLY...WHILE
THE NORTH IN CLOSER PROXIMITY TO THE RIDGE SHOULD NOT EXCEED 10 KNOT
EAST/SOUTHEAST FLOW.

PRELIMINARY NUMBERS...
DAB TB 072/088 073/090 074 4534
MCO TB 073/090 074/091 074 4524
MLB WB 074/088 075/089 075 4424

.MLB...NONE.

PUBLIC/MARINE...LASCODY
AVIATION/FIRE WX...GLITTO

Severe Thunderstorm Warnings in Florida, 2002Every severe thunderstorm warning in 2002

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.