Alert archive / Florida / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 107, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Aug 8, 2003, 1:49 PM EDT for Brevard County, Florida. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2003, 1:49 PM EDT (17:49 UTC)
- Expired
- Aug 8, 2003, 2:15 PM EDT
- In force
- 26 min
- Issued by
- NWS Melbourne, FL
- Area
- Counties, with a storm outline in the text
County Brevard County, FL
The radar
The Melbourne radar (KMLB), 22 km from the middle of the area, began a volume at 17:51 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.
Did it verify
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.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 5.8 hours before the alert went out and 21 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
- 1183 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 607 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 11 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 081749 SVRMLB FLC009-081815- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 147 PM EDT FRI AUG 8 2003 THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL BREVARD COUNTY IN EAST CENTRAL FLORIDA * UNTIL 215 PM EDT * AT 141 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER PATRICK AIR FORCE BASE...OR ABOUT 4 MILES SOUTHWEST OF PATRICK AIRFORCE BASE...MOVING NORTHEAST AT 30 MPH. * A OTHER SEVERE THUNDERSTORMS WILL CROSS NORTH OF PATRICK AFB AND THE MERRITT ISLAND AREA. THERE WERE REPORTS OF TREES DOWN IN INDIAN HARBOR BEACH. 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. LAT...LON 2828 8077 2814 8065 2832 8032 2849 8045 $$
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 Aug 8, 9:30 AM EDT, 4 hours 19 minutes earlier.
Area forecast discussion, Aug 8, 9:30 AM EDT, 4 hours 19 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MELBOURNE FL 930 AM EDT FRI AUG 8 2003 .DISCUSSION... ACTIVE DAY ON TAP...NMRS SHRA/TSTMS ALONG THE WCSB PUSHING WELL INLAND...LITTLE CLOUD COVER OVER THE CWA ALLOWING FULL SUN...AND CONTINUED HIGH MOISTURE LVLS WITH PW VALUES OFF THE MORNING RAOBS 2.2-2.3 AT KTPA/KXMR RESPECTIVELY. H100-H50 SW FLOW HAS STRENGTHENED OVER THE LAST 24HRS...KXMR SOUNDING AVGERAGED 20KTS THROUGH THE LAYER...WHICH SHOULD OVERPOWER THE FORMATION OF THE ECSB TODAY. NEVERTHELESS...H50 SHORTWAVE ENERGY ROUNDING THE BASE OF THE HIGH AMPLITUDE TROF OVER THE ERN GOMEX/WRN PENINSULA WILL COMBINE WITH RR QUAD OF AN H25 JET MAX OVER GA/AL TO PROVIDE SUFFCIENT SYNOPTIC SCALE LIFT FOR 70/80 POPS...DESPITE THE LACK OF MESOSCALE BOUNDARIES. ZFP UPDATE...ONLY COSMETIC CHANGES NECESSARY THIS MORNING. .MARINE... OFFSHORE FLOW 15KTS WILL CONTINUE INTO SAT...WITH OFFSHORE MOVING TSTMS THE MOST SIGNIFICANT THREAT. WILL ADD COMMENT ABOUT WINDS/SEAS HIGHER NEAR TSTSMS...OTHERWISE NO SIGNIFICANT CHANGES. .MLB...NONE. SHORT TERM...LASCODY LONG TERM...BRAGAW
Hazardous weather outlook, Aug 8, 11:30 AM EDT, 2 hours 19 minutes before
AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147- 082100- EAST CENTRAL FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MELBOURNE FL 1130 AM EDT FRI AUG 8 2003 .DAY ONE...TODAY: DEEP LAYER MOISTURE AND FORCING IN THE MID AND UPPER LEVELS WILL PRODUCE WIDESPREAD STORMS TODAY...WHICH ARE EXPECTED TO LINGER INTO THE OVERNIGHT HOURS TONIGHT. STORMS WERE ALREADY FORMING OVER EAST CENTRAL FLORIDA BEFORE NOON...AND WILL INCREASE IN NUMBER AS THE AFTERNOON PROGRESSES. DEEP LAYER SOUTHWEST FLOW WILL ALLOW SOME STORMS TO TRAIN ACROSS THE SAME AREA. VERY HEAVY RAINFALL WITH TOTAL ACCUMULATIONS OF TWO TO THREE INCHES WILL OCCUR IN SOME AREAS...AND LIKELY WILL CAUSE TEMPORARY FLOODING OF ROADWAYS...INTERSECTIONS... AS WELL AS LOW LYING AND POOR DRAINAGE AREAS. STRONG WIND GUSTS UP TO 40 MPH WILL ACCOMPANY THE STRONGER STORMS...WITH A FEW SEVERE THUNDERSTORMS PRODUCING DAMAGING WINDS POSSIBLE. ALL STORMS WILL PRODUCE DEADLY CLOUD TO GROUND LIGHTNING...SOME OF WHICH MAY BECOME EXCESSIVE IN STRONGER STORMS. REMEMBER...LIGHTNING CAN STRIKE WELL BEYOND THE AUDIBLE RANGE OF THUNDER. IF YOU HEAR THUNDER...YOU ARE WITHIN STRIKING RANGE OF THE STORM. SEEK SAFE SHELTER IN AN ENCLOSED BUILDING OR AUTOMOBILE IMMEDIATELY...AS WEATHER CONDITIONS MAY DETERIORATE RAPIDLY. BEACH GOERS SHOULD BE ESPECIALLY CAREFUL...AS STORMS WILL APPROACH FROM THE WEST. FOR MARINE INTERESTS...STRONG STORMS MOVING OFFSHORE MAY PRODUCE GUSTY WINDS...LOCALLY ROUGH SEAS...FREQUENT TO EXCESSIVE CLOUD TO WATER LIGHTNING...AND REDUCED VISIBILITY IN TORRENTIAL RAINFALL THIS AFTERNOON AND EARLY EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY: SCATTERED TO NUMEROUS LIGHTNING STORMS WILL BE THE PRIMARY HAZARD DURING THE AFTERNOON AND EVENING HOURS. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTERS ARE ASKED TO SELF ACTIVATE THIS AFTERNOON IF STRONG STORMS DEVELOP...AND RELAY ANY REPORTS OF SIGNIFICANT WEATHER INCLUDING RAINFALL AMOUNTS GREATER THAN 2 INCHES TO THE NATIONAL WEATHER SERVICE IN MELBOURNE. FOR A GRAPHICAL VERSION OF THIS HAZARDOUS WEATHER OUTLOOK...GO TO WWW.WEATHER.GOV AND CLICK ON EAST CENTRAL FLORIDA. BRAGAW
In the hours before
Special weather statement, Aug 8, 12:40 PM EDT, 1 hour 9 minutes before
FLZ047-053-054-058-059-081730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 1240 PM EDT FRI AUG 8 2003 ...STORMS CAPABLE OF PRODUCING FUNNEL CLOUDS OVER OKEECHOBEE COUNTY...SOUTHEASTERN OSCEOLA COUNTY...MOVING NORTHEAST... NORTHERN ST. LUCIE COUNTY...SOUTHERN BREVARD COUNTY...INDIAN RIVER COUNTY... AT 1230 PM EDT...WEATHER SPOTTERS REPORTED IN OKEECHOBEE COUNTY REPORTED A NUMBER OF FUNNEL CLOUDS JUST NORTH OF THE OKEECHOBEE CITY LIMITS. STORMS IN THIS AREA WERE MOVING NORTHEAST AT 15 MPH. THESE STORMS WILL TRACK INTO SOUTH BREVARD...INDIAN RIVER...AND NORTHWEST SAINT LUCIE COUNTY THROUGH 300 PM. RESIDENTS IN THESE AREAS SHOULD MAINTAIN A CLOSE EYE ON THE WEATHER AND BE READY TO TAKE QUICK ACTION IF CONDITIONS DETERIORATE. IF THE STORMS STRENGTHEN FURTHER...A WARNING WILL BE ISSUED. BRAGAW
Special weather statement, Aug 8, 12:40 PM EDT, 1 hour 9 minutes before
FLZ047-053-054-058-059-081730- SPECIAL WEATHER STATEMENT...CORRECTED... NATIONAL WEATHER SERVICE MELBOURNE FL 1240 PM EDT FRI AUG 8 2003 ...STORMS CAPABLE OF PRODUCING FUNNEL CLOUDS OVER OKEECHOBEE COUNTY...SOUTHEASTERN OSCEOLA COUNTY...MOVING NORTHEAST... AT 1230 PM EDT...WEATHER SPOTTERS REPORTED IN OKEECHOBEE COUNTY REPORTED A NUMBER OF FUNNEL CLOUDS JUST NORTH OF THE OKEECHOBEE CITY LIMITS. STORMS IN THIS AREA WERE MOVING NORTHEAST AT 15 MPH. THESE STORMS WILL TRACK INTO SOUTH BREVARD...INDIAN RIVER...AND NORTHWEST SAINT LUCIE COUNTY THROUGH 300 PM. RESIDENTS IN THESE AREAS SHOULD MAINTAIN A CLOSE EYE ON THE WEATHER AND BE READY TO TAKE QUICK ACTION IF CONDITIONS DETERIORATE. IF THE STORMS STRENGTHEN FURTHER...A WARNING WILL BE ISSUED. BRAGAW
Special weather statement, Aug 8, 1:13 PM EDT, 36 minutes before
FLZ046-141-081800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 113 PM EDT FRI AUG 8 2003 ...STRONG STORM CAPABLE OF PRODUCING WINDS UP TO 50 MPH AND SMALL HAIL ORANGE...SEMINOLE COUNTY...SOUTH CENTRAL VOLUSIA COUNTY... AT 111 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF THUNDERSTORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL BETWEEN ORLANDO AND SANFORD MOVING NORTHEAST AT 30 MPH. SMALL HAIL AND FUNNEL CLOUDS HAVE BEEN REPORTED WITH THESE STORMS. LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS AND SMALL HAIL INCLUDE ALTAMONTE SPRINGS...SANFORD...DELTONA AND EDGEWATER. IF THE STORM STRENGTHENS FURTHER...A WARNING WILL BE ISSUED.
Special weather statement, Aug 8, 1:21 PM EDT, 28 minutes before
FLZ047-054-081815- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MELBOURNE FL 121 PM EDT FRI AUG 8 2003 ...STRONG STORM CAPABLE OF PRODUCING WINDS UP TO 50 MPH AND SMALL HAIL SOUTHERN BREVARD COUNTY...EASTERN INDIAN RIVER COUNTY... AT 116 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A A CLUSTER OF THUNDERSTORMS CAPABLE OF PRODUCING STRONG WINDS AND SMALL HAIL OVER PALM BAY...SEBASTIAN...AND FORT PIERCE...MOVING NORTHEAST AT 30 MPH. THESE STORMS HAVE A HISTORY OF PRODUCING WIND GUSTS TO NEAR 40 MPH AND SMALL HAIL AND THEY ARE EXPECTED TO INTENSIFY DURING THE AFTERNOON. FUNNEL CLOUDS HAVE BEEN REPORTED NEAR OKEECHOBEE AND NEAR ORLANDO. RESIDENTS OF EAST CENTRAL FLORIDA SHOULD BE ALERT TO THE POSSIBILITY OF DAMAGING WINDS AND BE PREPARED TO TAKE COVER IF A WARNING IS ISSUED.
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 12:47 PM EDT | Special Marine Warning | MLB | 118 min | |
| Aug 8, 12:47 PM EDT | Special Marine Warning | MLB | 118 min | |
| Aug 8, 2:12 PM EDT | Special Marine Warning | MLB | 2 hr | |
| Aug 8, 2:20 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 40 min |
| Aug 8, 2:35 PM EDT | Special Marine Warning | MLB | 115 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2003Every severe thunderstorm warning in 2003
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.