Florida, 2001

Flash Flooding in Florida, July 21, 2001

July 21, 2001 · NWS MLB · 2 events in 2 counties and zones

2 flash flood, as filed by the National Weather Service.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$15,000
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before the first event at Jul 21, 1:45 PM EST, 3 hours 15 minutes earlier.

Area forecast discussion, Jul 21, 1:45 PM EST, 3 hours 15 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
245 PM EDT SAT JUL 21 2001

CURRENTLY/TONIGHT...AFTERNOON W/V IMAGES SHOW A SERIES OF UPPER
VORTICITY CIRCULATIONS DROPPING SOUTH TWD JAX AND OFF THE SW FL
COAST. SHOWER AND TSTM ACTIVITY HAS BEEN MOST NUMEROUS ACROSS THE
SRN THREE COUNTIES BUT ACTIVITY HAS ALSO BEEN FILLING IN FROM THE
WEST AND SEA BRZ IS TRYING TO GET GOING FROM MLB NORTHWARD ALONG
THE COAST. WITH UPPER LOW/SHEAR AXIS AND LOW PRES CENTER FCST TO
RETROGRADE EVER SO SLOWLY WESTWARD OVERNIGHT...DECENT LOW LVL MOIST
SW FLOW WILL CONTINUE ACROSS THE SRN 2/3 WHERE LIKELY POPS WILL BE
KEPT AND WILL GO WITH 50 PCT FOR THE FAR NORTH.

SUN...LEANING TOWARD AN ETA/AVN COMPROMISE THIS TIME OUT WITH UPPER
LOW/SHEAR AXIS POISED TO MOVE WEST JUST NW OF THE CWA. AT THE SFC...
ETA/AVN FRONTAL TROUGH POSITION SIMILIAR BUT AVN PROBABLY A MB OR
TWO TOO DEEP WITH SFC LOW. IN ANY EVENT...BOTH ETA/AVN SHOW GOOD LOW
LVL SW FLOW 20-30 KNOTS ACROSS THE SRN HALF TOMMORROW WHICH WILL TAP
GULF MOISTURE ACROSS A LONG STRETCH OF REAL ESTATE WHICH CONTAINS A
2 INCH+ PWAT AIRMASS. THIS AREA WILL ALSO SEE ADDITIONAL LIFT FROM
THE UPPER S/W JUST NW OF THE AREA. LOW LVL FLOW WILL BECOME MORE SSW
BY LATE AFTN AND HEAVIER RAINFALL MAY BEGIN TO FOCUS INTO CNTRL/NRN
SECTIONS BY EVENING. ETA/AVN REALLY FOCUS MAX QPF BAND ACROSS SRN
SECTIONS FROM SRN BREVARD AND OSCEOLA SOUTHWARD. NGM FOCUSES A BIT
FURTHER NORTH. THINK CNRTL/SRN SECTIONS MOST AT RISK FOR TRAINING
CELLS ON SUNDAY BUT WILL ALSO CONTINUE FAR NRN SECTIONS IN FLOOD
WATCH AS NGM SOLUTION STILL POSES A BIT OF UNCERTAINTY. NRN ZONES
ALSO CLOSER TO THE ACTUAL FRONTAL TROUGH BOUNDARY...WHICH COULD
SERVE AS A FOCUSING MECHANISM FOR SOME HEAVY RAINFALL.

SUN NGT/MON...STILL LIKE THE COMPROMISE ETA/AVN SOLUTION FOR SUN
NGT...NOT LIFTING THE RAIN BAND NORTH OF THE AREA BY 12Z LIKE THE
NGM. 50/60 POPS LOOK GOOD SUN NGT. ON MON...WILL TRIM POPS INTO
LIKELY RANGE BUT STILL GOOD S/SW LOW LVL FLOW WITH HIGH PWS (ETA
1.9/AVN 2.3). IF AVN IS CORRECT MAY NEED TO EXTEND FLOOD WATCH INTO
MONDAY. WILL LET LATER SHIFTS TAKE A LOOK. THE TREND LOOKS TO
EVENTUALLY MOVE SOME DRIER AIR TWD S FL AS BOUNDARY LIFTS NORTHWARD
AND SHIFT HIGHER POPS INTO THE NRN PENINSULA.

MARINE...AVN LOOKS TOO STRONG WITH ITS WIND FIELDS WITH DEEPER SFC
LOW. FOR NOW WILL HOLD WINDS TO 15 KNOTS AND GUSTY FOR THE HIGH END
ACROSS THE SRN LEG. MAY NEED SCEC THERE EVENTUALLY BUT WILL LET
LATER SHIFTS RAMP UP TO THIS LEVEL IF NEEDED. SCATTERED TO NUMEROUS
SHOWERS AND TSTMS FOR THE NEXT TWO DAYS ACROSS THE WATERS.

EXTENDED...MORE TYPICAL SUMMERTIME PATTERN SETTING UP FOR LATTER
HALF OF THE WEEK WITH A RIDGE BEGINNING TO TAKE CONTROL SFC AND
ALOFT. WILL STILL SEE TYPICAL DIURNAL SEA BRZ SHOWER/TSTMS EVEN AS
UPPER RIDGE BUILDS OVERHEAD BY THU-FRI.

COORD WITH TBW.

PRELIM...
DAB TT 073/086 073/089 073 15675
MCO TT 073/087 074/088 073 15686
MLB TT 074/087 074/088 074 15686

.MLB...FLOOD WATCH FOR ALL OF EAST CENTRAL FLORIDA THROUGH SUNDAY.

PUBLIC/MARINE...VOLKMER
AVIATION/FIRE WX...KELLY

In the hours before

Special weather statement, Jul 21, 3:40 PM EST, 1 hour 20 minutes before
AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147-
221000-

EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
440 PM EDT SAT JUL 21 2001

...FLOOD WATCH CONTINUES FOR ALL OF EAST CENTRAL FLORIDA THROUGH
SUNDAY...

ABUNDANT MOISTURE WILL COMBINE WITH A FRONTAL TROUGH ACROSS CENTRAL
FLORIDA AND A SERIES OF UPPER LEVEL DISTURBANCES...TO PRODUCE PERIODS
OF SHOWERS AND LIGHTNING STORMS AGAIN SUNDAY...SOME WITH HEAVY RAIN.
ADDITIONAL RAINFALL TOTALS BETWEEN 1 AND 2 INCHES...WITH LOCALLY
HIGHER AMOUNTS OF 3 TO 4 INCHES...WILL BE POSSIBLE.

OVER THE PAST WEEK...HEAVY RAINS OF 4 TO 10 INCHES ACROSS PORTIONS OF
EAST CENTRAL FLORIDA HAVE PRODUCED STANDING WATER IN CULVERTS AND LOW
LYING AREAS...AND HAVE SIGNIFICANTLY RAISED WATER LEVELS IN RETENTION
PONDS. THESE AREAS WILL BE MOST VULNERABLE TO URBAN AND POOR DRAINAGE
FLOODING OVER THE NEXT SEVERAL DAYS.

A FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SIGNIFICANT
FLOODING OF ROADS AND PROPERTIES TO OCCUR...AND POSSIBLY FOR WATER TO
ENTER SOME HOMES. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR LOCAL
COMMERCIAL RADIO OR TELEVISION STATION FOR LATER STATEMENTS AND
POSSIBLE WARNINGS.

RAINFALL SPOTTERS ARE ASKED TO CONTACT THE NATIONAL WEATHER SERVICE
IN MELBOURNE IF RAINFALL ACCUMULATIONS EXCEED 2 INCHES.

THE GRAPHICAL VERSION OF THIS HAZARDOUS WEATHER OUTLOOK IS AVAILABLE
AT HTTP://WWW.SRH.NOAA.GOV/MLB/HWOFILES/HWOMAIN.HTML

KELLY

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 flash flood. Local standard time, as filed.

Flash Flood, Seminole

When
July 21, 5:00 PM EST
Where
Seminole County, Winter Spgs
Property damage
$15,000
Reported by
TRAINED SPOTTER
Coordinates
28.717, -81.236 (the zone’s center; the record gives no point)

Heavy rain produced flash flooding in the Tuskawilla area of Winter Springs. Three homes were flooded.

Flash Flood, Orange

When
July 21, 6:05 PM EST
Where
Orange County, Winter Park
Reported by
TRAINED SPOTTER
Coordinates
28.514, -81.323 (the zone’s center; the record gives no point)

About 5 inches of rain fell in the Winter Park and Maitland areas causing flooding of major roadways throughout the area.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Florida in 2001Every state in 2001This day in weather historyWarnings in Florida, July 2001

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5259554, 5259553.