Alert archive / Florida / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 54, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 23, 2000, 4:57 PM EDT for Okeechobee County, Florida. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 23, 2000, 4:57 PM EDT (20:57 UTC)
- Expired
- Jul 23, 2000, 6:00 PM EDT
- In force
- 63 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Okeechobee County, FL
The radar
The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 20:57 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.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 9.0 hours before the alert went out and 153 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
- 75 J/kg
- Mixed-layer CIN
- -639 J/kg
- Mixed-layer LCL
- 1517 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 8 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 232058 SVRMLB FLC093-232200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 457 PM EDT SUN JUL 23 2000 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OKEECHOBEE COUNTY ...IN EAST CENTRAL FLORIDA * UNTIL 600 PM EDT * AT 455 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF OKEECHOBEE...MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... OKEECHOBEE AT 515 PM EDT FORT DRUM AT 535 PM 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. $$ LAT...LON 27z50 8116 2717 8086 2736 8070 2765 8087 28
What 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 23, 2:00 PM EDT, 2 hours 57 minutes earlier.
Area forecast discussion, Jul 23, 2:00 PM EDT, 2 hours 57 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION...CORRECTED CCF NOS NATIONAL WEATHER SERVICE MELBOURNE FL 155 PM EDT SUN JULY 23 2000 CURRENTLY...SHOWERS AND LIGHTNING STORMS FILLING IN ON THE RADAR FROM THE WEST...WITH SECONDARY ACTIVITY DEVELOPING OVER THE SPACE COAST SOUTH TO LAKE OKEECHOBEE. LITTLE CLOUD COVER WITH GOOD INSOLATION OVER INTERIOR SECTIONS WILL ALLOW FOR SOME STRONG STORMS TO DEVELOP INTO THE EVENING. TONIGHT/MONDAY...EXTENSIVE DEBRIS CLOUDS WITH LEFT OVER SHOWER ACTIVITY JUSTIFIES SCATTERED EVENING POPS. WILL TRIM BACK CLOUD COVER BEGINNING LATE TONIGHT. OVERALL...LITTLE CHANGE NOTED IN POSITION OF TROUGH JUST NORTH OF STATE. LARGE SCALE WIND SOUTH TO SOUTHWEST WITH HIGH PW VALUES OVER THE REGION. RIDGE AXIS OVER SOUTH FL BEGINS TO SWING NORTH ON MONDAY. SO MORE OF AN ONSHORE COMPONENT INITIALLY WILL ALLOW FOR SEA BREEZE DEVELOPMENT SOUTH OF ABOUT VOLUSIA COUNTY BY EARLY AFTERNOON. WILL LEAVE "LIKELY" WORDING FOR POPS MONDAY. MID-WEEK...BAND OF HIGHEST MOISTURE SHIFTS NORTH OF THE AREA AS H5 LOW BECOMES CUTOFF OVER GULF MEX AND DRIFTS WEST. ATLANTIC RIDGE BECOMES ESTABLISHED AS AXIS MOVES NORTH OF AREA. PREVAILING WINDS BECOME ONSHORE BY WED AND CONTINUE TO AT LEAST FRI. TRAJECTORY COULD BE ENOUGH FOR OVERNIGHT SHOWERS TO DEVELOP ALONG COASTAL COUNTIES. MARINE...NO HILIGHTS. WILL GO ON LOW SIDE OF GUID TEMPS OVERNIGHT. WILL GO A CAT LOWER FOR POPS ON TUE TO ACCOUNT FOR SLIGHTLY DRIER CONDITIONS OVERALL. PRELIM... DAB TT 072/090 073/091 073 4635 MCO TT 072/091 072/092 073 4635 MLB TT 072/090 072/091 073 4635 44 .MLB...NONE. PUBLIC/MARINE...PENDERGRAST AVIATION/FIRE WX...GLITTO
In the hours before
Special weather statement, Jul 23, 10:59 AM EDT, 5 hours 58 minutes before
FLZ041-044>047-053-054-058-059-064-232000- EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1059 AM EDT SUN JUL 23 2000 ...HEAVY RAINFALL POSSIBLE IN A FEW STRONG LIGHTNING STORMS... SCATTERED TO NUMEROUS SHOWERS AND LIGHTNING STORMS WILL FORM ALONG THE INTERIOR PENINSULA AND ALSO ALONG SEA BREEZE BOUNDARIES THIS AFTERNOON AND INTO THE EARLY EVENING. STEERING WINDS ALOFT WILL MOVE STORMS SLOWLY TO THE NORTHEAST. THIS WILL ALLOW AS MUCH AS 2 TO 3 INCHES OF RAIN TO FALL FROM SOME OF THE STRONGER SLOW MOVING STORMS. NUISANCE PONDING OF WATER ON ROADWAYS AND LOW LYING AREAS WILL BE POSSIBLE. MOTORISTS AND THOSE LIVING NEAR POOR DRAINAGE AREAS SHOULD BE PREPARED IN THE EVENT LOCALIZED FLOODING DEVELOPS. ISOLATED STRONG STORMS WILL PRODUCE WIND GUSTS TO 45 MPH AND SMALL HAIL. AS ALWAYS...OCCASIONAL TO FREQUENT CLOUD TO GROUND LIGHTNING WILL POSE A THREAT TO SAFETY. REMEMBER...LIGHTNING CAN STRIKE MILES AWAY FROM THE PARENT STORM. THE AFTERNOON LIGHTNING STORMS WILL EVENTUALLY AFFECT BOATERS IN THE INTRACOASTAL AND NEAR SHORE WATERS INTO THE EVENING. WIND GUSTS OVER 35 KNOTS...OCCASIONAL CLOUD TO WATER LIGHTNING...AND VISIBILITY NEAR ZERO IN TORRENTIAL RAIN WILL ACCOMPANY THE STRONGEST STORMS. RAIN GAUGE NETWORK OBSERVERS AND SPOTTERS ARE REQUESTED TO NOTIFY THE NATIONAL WEATHER SERVICE WHEN RAINFALL AMOUNTS EXCEED 3 INCHES. THE GRAPHICAL VERSION OF THIS HAZARDOUS WEATHER OUTLOOK IS AVAILABLE AT: HTTP://WWW.SRH.NOAA.GOV/MLB/HWOFILES/HWOMAIN.HTML PENDERGRAST
Nearby
Severe Thunderstorm Warnings in Florida, 2000Every severe thunderstorm warning in 2000
Sources
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.