Alert archive / Florida / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 86, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 21, 2007, 4:58 PM EDT for Lake County, Florida. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 21, 2007, 4:58 PM EDT (20:58 UTC)
- Expired
- Jul 21, 2007, 6:00 PM EDT
- In force
- 62 min
- Issued by
- NWS Melbourne, FL
- Area
- Counties, with a storm outline in the text
County Lake County, FL
The radar
The Melbourne radar (KMLB), 126 km from the middle of the area, began a volume at 21:01 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 21, 5:00 PM EDT | TSTM WND DMG | 3 Sw Clermont, FL | TREE DOWN STATE ROAD 33 JUST SOUTH OF 474 |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 2 minutes after it went out.
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 21, 11:22 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 9.0 hours before the alert went out and 119 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1999 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1039 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS52 KMLB 212100
SVRMLB
FLC069-212200-
/O.NEW.KMLB.SV.W.0086.070721T2058Z-070721T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
458 PM EDT SAT JUL 21 2007
THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
LAKE COUNTY IN FLORIDA.
* UNTIL 600 PM EDT
* AT 452 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERAL CLUSTERS OF STORMS WITH THE POTENTIAL TO PRODUCE QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH OVER LAKE
COUNTY. ONE STORM WAS OVER LADY LAKE...AND MOVING EAST AT 5 MPH.
ANOTHER CLUSTER OF STORMS WAS BUILDING JUST SOUTH OF STATE ROAD
50 NEAR MASCOTTE...GROVELAND AND CELRMONT. THE THRIRD WAS JUST
ACROSS THE SAINT JOHNS RIVER FROM FOREST HILLS.
* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
LEESBURG...LAKE GRIFFIN...LAKE HARRIS...LISBON...HOWEY IN THE
HILLS...TAVARES...PAISLEY...MOUNT DORA...FERNDALE...EUSTIS...
CASSIA AND MID FLORIDA LAKES.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
LAT...LON 2922 8165 2919 8155 2898 8137 2889 8137
2880 8144 2877 8168 2838 8168 2835 8188
2838 8195 2895 8195 2898 8165 2928 8165
$$
CRISTALDI3 follow-up statements
000
WWUS52 KMLB 212121
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
520 PM EDT SAT JUL 21 2007
FLC069-212200-
/O.CON.KMLB.SV.W.0086.000000T0000Z-070721T2200Z/
LAKE FL-
520 PM EDT SAT JUL 21 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR LAKE COUNTY...
AT 520 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR CASSIA...MOVING WEST AT 5 TO 10 MPH.
OTHER SEVERE STORMS WERE NEAR LADY LAKE...EMERALDA...AND LAKE YALE...
WHILE ANOTHER CLUSTER OF SEVERE STORMS EXTENDED FROM LAKE DORA TO
FERNDALE...MINNEOLA AND CLERMONT.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR EAST CENTRAL FLORIDA.
LAT...LON 2922 8165 2919 8155 2898 8137 2889 8137
2880 8144 2877 8168 2838 8168 2835 8188
2838 8195 2895 8195 2898 8165 2928 8165
$$
CRISTALDI000
WWUS52 KMLB 212146
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
545 PM EDT SAT JUL 21 2007
FLC069-212200-
/O.CON.KMLB.SV.W.0086.000000T0000Z-070721T2200Z/
LAKE FL-
545 PM EDT SAT JUL 21 2007
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR LAKE COUNTY...
AT 545 PM EDT...A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH WAS
LOOCATED ALONG A LINE EXTENDING FROM MOUNT DORA TO CASSIA...AND WAS
BUILDING WESTWARD.
OTHER STORMS WERE NEAR MOUNT DORA...LAKE YALE...AND MOUNT PLYMOUTH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR EAST CENTRAL FLORIDA.
LAT...LON 2922 8165 2919 8155 2898 8137 2889 8137
2880 8144 2877 8168 2838 8168 2835 8188
2838 8195 2895 8195 2898 8165 2928 8165
$$
CRISTALDI000
WWUS52 KMLB 212204
SVSMLB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
602 PM EDT SAT JUL 21 2007
FLC069-212212-
/O.EXP.KMLB.SV.W.0086.000000T0000Z-070721T2200Z/
LAKE FL-
602 PM EDT SAT JUL 21 2007
...THE SEVERE THUNDERSTORM WARNING FOR LAKE COUNTY EXPIRES AT 600 PM
EDT...
AT 602 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
LARGE AREA OF SEVERE STORMS THAT PROMPTED THE WARNING FOR LAKE COUNTY
HAD WEAKENED SOME...WITH THE MOST INTENSE ACTIVITY SAGGING SOUTHWARD
INTO SEMINOLE COUNTY. THUS...THE WARNING HAS BEEN ALLOWED TO EXPIRE.
HOWEVER...VERY HEAVY RAIN AND FREQUENT LIGHTNING WILL CONTINUE OVER
MOST OF NORTHEASTERN LAKE COUNTY THROUGH 700 PM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR EAST CENTRAL FLORIDA.
LAT...LON 2922 8165 2919 8155 2898 8137 2889 8137
2880 8144 2877 8168 2838 8168 2835 8188
2838 8195 2895 8195 2898 8165 2928 8165
$$
CRISTALDIWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 21, 4:00 PM EDT, 58 minutes earlier.
Area forecast discussion, Jul 21, 4:00 PM EDT, 58 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 4 PM EDT SAT JUL 21 2007 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF EC FL AND NEAR SHORE COASTAL WATERS UNTIL 9 PM THIS EVENING... .DISCUSSION... TONIGHT...STORM/SEVERE ACTIVITY HAS BEEN CONFINED TO AREAS NEAR AND SOUTH OF SURFACE TROF THUS FAR...MAINLY AREAS FROM BREVARD AND SOUTH OSCEOLA SOUTHWARD. STORMS NEAR THE EAST COAST HAVE PUSHED A WELL-DEFINED OUTFLOW BOUNDARY WELL INLAND AND ACTIVITY SHOULD INCREASE OVER THE NORTHERN SECTIONS THROUGH LATE AFTERNOON AS THIS BOUNDARY INTERACTS WITH THE WEST COAST SEA BREEZE. VORT LOBE MOVING THROUGH BASE OF MID/UPPER TROF WILL ENHANCE LIFT INTO THIS EVENING. SEVERE THUNDERSTORM WATCH WILL CONTINUE FOR ALL AREAS WITH AFTERNOON PACKAGE ISSUANCE. WITH APPROACH OF DISTURBANCE ALOFT... ACTIVITY MAY GO WELL INTO THE NIGHT TIME HOURS AND TRENDED ZONES AS SUCH. SUN/TUE... WEAKENING TROUGH WILL DRIFT INTO CENTRAL FL WITH SOME DRYING INDICATED OVER THE EXTREME NORTH AS HIGH PRESSURE TRIES TO WORK SOUTH INTO N FL. AIRMASS REMAINS QUITE MOIST AND GUID SUGGESTS HIGH COVERAGE OF PRECIP ONCE AGAIN DURING THE HEAT OF THE AFTERNOON. ANOMALOUS FLOW PATTERN ALOFT WITH CUTOFF LOW DROPPING SWD FROM THE APPALACHIANS WL ADD TO INSTABILITY COMPONENT AS WELL INTO MON. VEERING FLOW IN RESPONSE TO HIGH PRESSURE RIDGING BECOMING RE-ESTABLISHED OVER THE ATLC MARINE AREA ON MON-TUE. WL REDUCE PRECIP TO 50 PERCENT COVERAGE MON AND TUE. WED-FRI...BROAD ATLC HIGH PRESSURE WL CONTROL THE REGION WITH THE RIDGE AXIS REMAINING NORTH OF THE STATE. DEEP E/ESE FLOW WL OPEN UP THE MARINE AREA FOR WEATHER SOURCE. SEASONALLY SCT PRECIP EXPECTED DIURNALLY BASED WITH HIGH MOISTURE. && .AVIATION...STORM COVERAGE WILL INCREASE THROUGH NORTHERN TAF SITES LATE AFTERNOON AND MAY LINGER WELL INTO EVENING. STRONGER STORMS WILL BE CAPABLE OF PRODUCING COIN SIZE HAIL AND SFC WND G50KT. && .MARINE...MAIN CONCERN TO BOATERS THROUGH TONIGHT WILL BE STORMS OVER INTRACOASTAL AND NEAR SHORE WATERS...A FEW WITH WIND G35+ KT...FREQUENT LIGHTNING AND COIN SIZE HAIL. PRESENCE OF TROUGH AND NUMEROUS STORMS WILL LEAD TO HIGHEST WINDS AND SEAS DURING AFTERNOON SUNDAY. && .PRELIMINARY POINT TEMPS/POPS... DAB 75 89 74 88 / 50 60 40 60 MCO 75 90 73 90 / 50 60 40 60 MLB 75 87 74 89 / 50 60 40 50 VRB 75 88 74 89 / 40 60 40 50 && .MLB WATCHES/WARNINGS/ADVISORIES... FL...SEVERE THUNDERSTORM WATCH 551 IN EFFECT FOR ALL EC FL COUNTIES UNTIL 9 PM. AM...SEVERE THUNDERSTORM WATCH 551 IN EFFECT FOR NEAR SHORE COASTAL WATERS UNTIL 9 PM. && SHORT TERM/AVIATION...GLITTO LONG TERM....PENDERGRAST
Hazardous weather outlook, Jul 21, 11:54 AM EDT, 5 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1154 AM EDT SAT JUL 21 2007 AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147- 220100- COASTAL WATERS FROM FLAGLER BEACH TO COCOA BEACH OUT 20 NM- COASTAL WATERS FROM COCOA BEACH TO JUPITER INLET OUT 20 NM- WATERS FROM FLAGLER BEACH TO COCOA BEACH 20 TO 60 NM OFFSHORE- WATERS FROM COCOA BEACH TO JUPITER INLET 20 TO 60 NM OFFSHORE- INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD- OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA- SOUTHERN LAKE-NORTHERN BREVARD- 1154 AM EDT SAT JUL 21 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...THIS AFTERNOON AND TONIGHT. ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 9 PM FOR ALL OF EAST CENTRAL FLORIDA AND THE NEAR SHORE COASTAL WATERS... ...THUNDERSTORM IMPACT... AN UPPER LEVEL DISTURBANCE COMBINED WITH AMPLE MOISTURE AND INSTABILITY WILL RESULT IN THE FORMATION OF NUMEROUS LIGHTNING STORMS THIS AFTERNOON AND EVENING. STORMS WILL INITIALLY FORM OVER SOUTHERN SECTIONS OF EAST CENTRAL FLORIDA...NEAR AND SOUTH OF A SURFACE TROUGH DRIFTING SOUTH THROUGH THE CENTRAL PENINSULA. STORMS WILL INCREASE IN COVERAGE AND INTENSITY AS THE AFTERNOON PROGRESSES... AND ALSO INCREASE THROUGH THE NORTHERN SECTIONS BY MID TO LATE AFTERNOON AS AN UPPER LEVEL DISTURBANCE APPROACHES. UNSEASONABLY COOL AIR AT MID LEVELS AND SOME DRIER AIR ALOFT WILL MAKE THE MAIN THREATS FROM MORE INTENSE STORMS HAIL UP TO THE SIZE OF GOLF BALLS AND DAMAGING WIND GUSTS. ADDITIONALLY...ALL STORMS WILL PRODUCE DEADLY CLOUD TO GROUND LIGHTNING AND AN ISOLATED BRIEF TORNADO WILL BE POSSIBLE ALONG BOUNDARY COLLISIONS. STORMS MAY PERSIST WELL INTO THE NIGHT TIME HOURS. PERSONS IN EAST CENTRAL FLORIDA SHOULD KEEP ALERT OF THE WEATHER AND MOVE INDOORS TO AN INTERIOR LOCATION AWAY FROM WINDOWS IF STORMS THREATEN. ...FLOOD IMPACT... STORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY DOWNPOURS...RESULTING IN A QUICK TWO OR THREE INCHES OF RAINFALL. THESE HEAVY AMOUNTS WILL LEAD TO PONDING OF WATER ON ROADS AND IN LOW LYING AREAS. REMEMBER TO SLOW DOWN AND USE LOW BEAM HEADLIGHTS WHEN DRIVING IN RAIN. IT IS EASY TO LOSE CONTROL OF YOUR VEHICLE AND HYDROPLANE. ...MARINE THUNDERSTORM GUST IMPACT... SCATTERED TO NUMEROUS STORMS WILL MOVE OVER THE INTRACOASTAL AND COASTAL WATERS THIS AFTERNOON TODAY AND TONIGHT. AS THE STORMS CROSS THE INTRACOASTAL WATERWAYS...BARRIER ISLANDS...AND SPREAD INTO THE ATLANTIC...WIND GUSTS OVER 35 KNOTS WILL OCCUR WITH SEVERAL OF THE STORMS. FREQUENT LIGHTNING AND VERY HEAVY DOWNPOURS WILL ALSO BE POSSIBLE. MARINERS SHOULD TAKE SAFE HARBOR WELL IN ADVANCE OF STORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. NUMEROUS LIGHTNING STORMS ARE EXPECTED SUNDAY AND MONDAY...WITH A THREAT FOR LOCALIZED SEVERE WEATHER. THE COVERAGE OF STORMS IS FORECAST TO LESSEN BEGINNING TUESDAY...WITH A RETURN TO MORE TYPICAL SCATTERED AFTERNOON ACTIVITY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. GLITTO
In the hours before
Local storm report, Jul 21, 2:00 PM EDT, 2 hours 58 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
200 PM EDT SAT JUL 21 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0145 PM HAIL MELBOURNE 28.08N 80.61W
07/21/2007 E0.88 INCH BREVARD FL PUBLIC
PUBLIC REPORT OF DIME TO NICKEL SIZE HAIL ON IXORA DRIVE.
&&
JRCLocal storm report, Jul 21, 2:42 PM EDT, 2 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE MELBOURNE FL
242 PM EDT SAT JUL 21 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0130 PM HAIL PATRICK AIR FORCE BASE 28.23N 80.61W
07/21/2007 M1.00 INCH BREVARD FL OTHER FEDERAL
NICKEL TO QUARTER SIZE HAIL REPORTED AT SOUTH HOUSING AT
PATRICK AIR FORCE BASE.
&&
JRCSpecial weather statement, Jul 21, 2:57 PM EDT, 2 hours 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 257 PM EDT SAT JUL 21 2007 FLZ053-211945- OSCEOLA- 257 PM EDT SAT JUL 21 2007 ...STRONG THUNDERSTORMS AFFECTING OSCEOLA COUNTY... AT 258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG STORM OVER LAKE MARIAN...DRIFTING SLOWLY. THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORM PASSES. A BRIEF PERIOD OF SMALL HAIL...PEA TO DIME SIZE...WILL ALSO BE POSSIBLE IN LOCALIZED AREAS. 52
Local storm report, Jul 21, 3:09 PM EDT, 1 hour 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
309 PM EDT SAT JUL 21 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0218 PM HEAVY RAIN WEST MELBOURNE 28.08N 80.67W
07/21/2007 M3.25 INCH BREVARD FL NWS EMPLOYEE
3.25 INCHES IN 90 MINUTES
&&
FXDSpecial weather statement, Jul 21, 4:33 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 433 PM EDT SAT JUL 21 2007 FLZ044-212115- NORTHERN LAKE COUNTY- 433 PM EDT SAT JUL 21 2007 ...STRONG THUNDERSTORMS AFFECTING NORTHEASTERN LAKE COUNTY... AT 427 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG STORM 4 MILES NORTH OF ALTOONA...NEARLY STATIONARY. OTHER STORMS ARE EXPECTED TO FORM OVER NORTHEAST LAKE COUNTY FROM HIGHWAY 19 EAST TO THE SAINT JOHNS RIVER...MAINLY NORTH OF HIGHWAY 44. THE PRIMARY THREATS WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORM PASSES. A BRIEF PERIOD OF SMALL HAIL...PEA TO DIME SIZE...WILL ALSO BE POSSIBLE IN LOCALIZED AREAS. STORMS WILL ALSO BE CAPABLE OF PRODUCING EXCESSIVE LIGHTNING STRIKES ...DEFINED AS 12 OR MORE CLOUD TO GROUND STRIKES PER MINUTE. SEEK SHELTER IN AN ENCLOSED BUILDING OR HARD TOPPED AUTOMOBILE. OPEN SHELTERS FOUND IN PARKS...ON BEACHES OR GOLF COURSES OFFER NO PROTECTION FROM THE DANGERS OF LIGHTNING. CRISTALDI
Special weather statement, Jul 21, 4:38 PM EDT, 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 438 PM EDT SAT JUL 21 2007 FLZ045-053-144-212130- ORANGE-OSCEOLA-SOUTHERN LAKE COUNTY- 438 PM EDT SAT JUL 21 2007 ...STRONG THUNDERSTORMS AFFECTING SOUTHEAST LAKE...SOUTHWEST ORANGE AND NORTHWEST OSCEOLA COUNTIES... AT 435 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LARGE CLUSTER OF STRONG STORMS EXTENDING FORM THE GREEN SWAMP INTO THE ATTRACTIONS AREA OF SOUTHEAST ORANGE AND NORTHWEST OSCEOLA COUNTIES. LOCATIONS IN THE PATH OF THESE STRONG STORMS INCLUDE BAY HILL...DOCTOR PHILLIPS...PLEASURE ISLAND AND SEA WORLD. THE PRIMARY THREATS WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE STORMS PASS. A BRIEF PERIOD OF SMALL HAIL...PEA TO DIME SIZE...WILL ALSO BE POSSIBLE IN LOCALIZED AREAS. VISITORS TO THE ORLANDO THEME PARKS SHOULD MOVE INDOORS AND AWAY FROM RIDES AS SOON AS THUNDER IS HEARD. FOLLOW THE DIRECTIONS OF PARK STAFF. CRISTALDI
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 8:52 PM EDT | Severe Thunderstorm Warning | MLB | Martin | 21 min |
| Jul 21, 12:23 PM EDT | Severe Thunderstorm Warning | MLB | Indian River | 52 min |
| Jul 21, 12:56 PM EDT | Special Marine Warning | MLB | 94 min | |
| Jul 21, 1:11 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 64 min |
| Jul 21, 1:21 PM EDT | Special Marine Warning | MLB | 84 min | |
| Jul 21, 1:40 PM EDT | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 50 min |
| Jul 21, 5:39 PM EDT | Severe Thunderstorm Warning | MLB | Seminole | 49 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2007Every severe thunderstorm warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.