Alert archive / Florida / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 57, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jun 11, 2001, 5:54 PM EDT for Brevard County, Florida. It was in force for 66 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 11, 2001, 5:54 PM EDT (21:54 UTC)
- Expired
- Jun 11, 2001, 7:00 PM EDT
- In force
- 66 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Brevard County, FL
The radar
The Melbourne radar (KMLB), 21 km from the middle of the area, began a volume at 21:53 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 |
|---|---|---|---|
| Jun 11, 6:10 PM EDT | Hail 0.88 | Titusville, FL | |
| Jun 11, 6:50 PM EDT | Thunderstorm Wind 70 E | Cape Canavral Misl S, FL | A wind tower at Cape Canaveral AFS recorded a gust to 75 KTS at the 54 foot level. |
| Jun 11, 7:10 PM EDT | Hail 0.75 | Palm Bay, FL |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 9.9 hours before the alert went out and 27 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
- 643 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1014 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KMLB 112156 SVRMLB FLC009-112300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MELBOURNE FL 554 PM EDT MON JUN 11 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BREVARD COUNTY IN EAST CENTRAL FLORIDA * UNTIL 700 PM EDT. * AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 4 MILES NORTHWEST OF TITUSVILLE... MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE... NEAR MIMS AT 605 PM EDT NEAR KENNEDY SPACE CENTER AT 615 PM EDT 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 2877 8094 2850 8086 2852 8064 2878 8069 CRISTALDI
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 Jun 11, 2:45 PM EDT, 3 hours 9 minutes earlier.
Area forecast discussion, Jun 11, 2:45 PM EDT, 3 hours 9 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
245 PM EDT MON JUN 11 2001
SCATTERED STORMS BEGINNING TO FIRE ALONG WEST COAST BREEZE N OF
TBW...WITH WELL-DEFINED EAST COAST BREEZE BOUNDARY TAKING SHAPE JUST
INLAND AT THIS TIME. EXPECT EAST COAST BREEZE TO REMAIN OVER COASTAL
COUNTIES...WITH LATE AFTERNOON/EARLY EVENING INTERACTION BETWEEN
EASTWARD MOVING STORMS/OUTFLOWS AND ATLANTIC BOUNDARY LEADING TO
BEST COVERAGE INTO THE EVENING...ALONG WITH ISOLATED STRONG STORMS.
12Z MODEL SUITE INITIALIZED MID-LEVEL VORT AND SURFACE CENTER
ASSOCIATED WITH EX-ALLISON MUCH BETTER THAN PREVIOUS CYCLES. WITH
SYSTEM REMAINING TRAPPED SOUTH OF MID-LEVEL RIDGE...EXPECT CONTINUED
SLOW ENE MOTION ACROSS THE SE STATES. SUCH A TRACK WOULD KEEP
ASSOCIATED LARGE SCALE FORCING N OF CWA..WITH WEAK REGION OF
PERIPHERIAL SUBSIDENCE POSSIBLY AFFECTING N PENINSULA TUESDAY
AFTERNOON. GIVEN SLOW MOTION...ADVERTISED NORTHWARD SHIFT OF SOUTH
FLORIDA RIDGE AXIS WILL BE DELAYED ABOUT 24 HOURS. EXPECT CURRENT
PATTERN TO PERSIST THROUGH TUESDAY WITH W/SW STEERING FLOW AND
ENOUGH OFFSHORE SURFACE GRADIENT TO LIMIT/RESTRICT ATLANTIC SEA
BREEZE NORTH OF THE CAPE TUESDAY AND DELAY DEVELOPMENT OVER CENTRAL
COAST. MOISTURE SHOULD REMAIN SUFFICIENT FOR SCATTERED CONVECTIVE
DEVELOPMENT OVER THE INTERIOR MID/LATE AFTERNOON...REACHING EAST
COAST LATE IN THE DAY.
WEDNESDAY LOOKS TO BE THE TRANSITION DAY FROM OFFSHORE STEERING TO
ONSHORE STEERING ACROSS THE SOUTHERN CWA. ACROSS THE NORTH
HALF...WESTERLY COMPONENT WILL STILL DOMINATE...BUT WITH LIGHER
SURFACE GRADIENT...EARLIER ATLANTIC SEA BREEZE FORMATION LIKELY WITH
INTERACTION OVER THE WESTERN PORTION OF COASTAL COUNTIES.
THURSDAY/FRIDAY...LOW LEVEL RIDGE AXIS CONTINUES TO SHIFT SLOWLY
NORTH. RIDGE SHOULD REACH CENTRAL PENINSULA THURSDAY...MEANING MID
DAY STORMS OVER EASTERN COUNTIES THEN SHIFTING TO INTERIOR COUNTIES
DURING THE AFTERNOON. OVER NORTHERN COUNTIES...ACTIVITY WILL STILL
FAVOR THE EAST COAST LATE IN THE DAY. BY FRIDAY...RIDGE AXIS SHOULD
REACH LATITUDE OF DAYTONA BEACH...WITH MAJORITY OF CWA WITHIN
ONSHORE FLOW...ACTING TO PUSH STORMS INLAND DURING THE DAY. MOISTURE
LEVELS EXPECTED TO REMAIN NEAR CLIMO...THEREFORE WILL CONTINUE WITH
NEAR 30 PERCENT DIURNAL COVERAGE.
WEEKEND...WILL SUSTAIN CURRENT FORECAST PHILOSOPHY OF ASSUMING RIDGE
WILL HOLD TO NORTH OF CWA AND PERSIST CLIMO PATTERN OF MORNING/MID
DAY CONVECTION EASTERN CWA AND AFTERNOON/EARLY EVENING TIMING OVER
INTERIOR.
MARINE...NO HIGHLIGHTS AS RIDGE AXIS SHIFTS NORTHWARD MID-LATE WEEK.
FIRE WX...HAVE RAISED FIRE WX WATCH FOR N HALF OF CWA TUESDAY GIVEN
HIGH DISPERSION INDEX VALUES DUE TO WARM TEMPS...HIGH MIXING
HEIGHTS...AND 15 KNOTS TRANSPORT WINDS.
DAB BB 070/092 070/091 070 65333
MCO BB 070/092 070/092 071 65231
MLB BB 072/092 072/089 073 65432
.MLB...FIRE WX WATCH TUESDAY FOR HIGH DISPERSION INDICIES
OSCEOLA/BREVARD/ORANGE/SEMINOLE/LAKE/VOLUSIA.
PUBLIC/MARINE...SPRATT
AVIATION/FIRE WX...PENDERGRASTIn the hours before
Local storm report, Jun 11, 5:41 PM EDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MELBOURNE FL
541 PM EDT MON JUN 11 2001
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0447 PM ORMOND BEACH FL 0.75 INCH HAIL
06/11/01 VOLUSIA DIME SIZE HAIL REPORTED
BY HAM KF4VRS.
0515 PM 5NW NEW SMYRNA BEACH FL 0.75 INCH HAIL
05/22/01 VOLUSIA DIME SIZE HAIL REPORTED
AT SPRUCE CREEK AIRPARK.
HAIL LASTED 10 MINUTES.
0517 PM DAYTONA BEACH FL WIND DAMAGE
05/22/01 VOLUSIA TREE DOWNED IN SOUTH
DAYTONA. REPORTED BY HAM
OPERATOR. ESTIMATED 60
MPH WIND GUST.
0535 PM PONCE INLET FL 0.75 INCH HAIL
05/22/01 VOLUSIA DIME SIZED HAIL OBSERVED
AT PONCE INLET COAST
GUARD STATION. LASTED 5
MINUTES.
SPRATT/CRISTALDIThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 4:31 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 59 min |
| Jun 11, 5:26 PM EDT | Severe Thunderstorm Warning | MLB | Volusia | 64 min |
| Jun 11, 7:04 PM EDT | Severe Thunderstorm Warning | MLB | Brevard | 26 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.