Alert archive / Florida / Special Weather Statements in 2020

Special Weather Statement, NWS Melbourne, FL

June 7, 2020Lake County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 7, 2020, 3:08 PM EDT for Lake County, Florida. It was in force for 37 min. 2 reports 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
Jun 7, 2020, 3:08 PM EDT (19:08 UTC)
Expired
Jun 7, 2020, 3:45 PM EDT
In force
37 min
Issued by
NWS Melbourne, FL

County Lake County, FL

The radar

The Tampa radar (KTBW), 141 km from the middle of the area, began a volume at 19:07 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

TimeReportWhereRemark
Jun 7, 3:40 PM EDTTORNADO4 Se Emeralda, FLRECIEVED SEVERAL PHOTOS AND VIDEOS VIA SOCIAL MEDIA OF A BRIEF TORNADO TOUCHING DOWN IN THE AREA OF LAKE GRIFFIN AND LAKE YALE IN LAKE COUNTY AROUND 340PM.
Jun 7, 3:47 PM EDTFUNNEL CLOUD4 Se Emeralda, FLMULTIPLE REPORTS FROM TRAINED SPOTTERS BETWEEN 347-350PM OF A FUNNEL CLOUD NEAR LAKE YALE. ONE SPOTTER NOTED IT WAS 3/4 OF THE WAY TO THE GROUND.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 7.1 hours before the alert went out and 141 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.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2020-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1010 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2020-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 239 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1010 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
239 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.8
Supercell composite
8.8

Open this sounding in Storm Lab

The text

As transmitted.

869 
WWUS82 KMLB 071908
SPSMLB

Special Weather Statement
National Weather Service Melbourne FL
308 PM EDT Sun Jun 7 2020

FLZ044-071945-
Northern Lake County-
308 PM EDT Sun Jun 7 2020

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL LAKE COUNTY...

At 308 PM EDT, a strong thunderstorm was located over Fruitland Park,
or over Leesburg, moving northeast at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Leesburg, Lady Lake, Lake Griffin, Lisbon and Emeralda. 

Funnel clouds can occasionally touch down and produce brief small
tornadoes. Move indoors and stay away from windows.

LAT...LON 2896 8195 2896 8171 2878 8185 2878 8195
TIME...MOT...LOC 1908Z 207DEG 21KT 2884 8191 

$$

Combs

What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 7, 9:24 AM EDT, 5 hours 44 minutes earlier.

Area forecast discussion, Jun 7, 9:24 AM EDT, 5 hours 44 minutes before
East Central Florida Forecast Discussion
National Weather Service Melbourne FL
924 AM EDT Sun Jun 7 2020

.DISCUSSION...

...Flood Watch Remains In Effect For All But Volusia County
Through This Evening...
...A Few Strong Storms Possible This Afternoon...

Update...The NWS Melbourne survey team is in process of determining
tornado rating, path length, and duration in several separate areas.

We will pass on information as we hear it from their findings.

Today-tonight...A very warm and moist atmosphere remains across the
region with deep moisture continuing to stream northward. Avbl short
range convective guidance indicates potential for a few strong
storms to develop from mid to late afternoon. More particularly along
the coast, while implying an east coast breeze boundary initiation
to storm potential. Affected locations may see wind gusty 40 to 50
mph along with briefly heavy rain and frequent lightning. A Flood
Watch remains in effect due to previous accumulations of rain in the
past few days and possibility of localized heavy rainfall
aggravating saturated soil.

By evening, coverage of showers and storms will decrease with light
to moderate rain in patches through the night. High temperatures
will climb to the mid to upper 80s and lows tonight will drop to the
mid 70s.

Monday-Wednesday...As "Cristobal" departs northward up the MS River
Valley Mon-Tue, mid level ridging will build over the eastern CONUS
and Florida, then link up with another building ridge to its west,
centered across Texas. The E-W orientation of the ridge will
eventually cause winds aloft to veer to NE by Wed. Deep moisture
with light S-SE surface flow will remain in place into mid week,
resulting in above normal coverage of diurnal showers/TS. The
Highest coverage (numerous/60 pct) will be over the interior, and
slightly lower (scattered/40-50) near the coast. Max temps in the
U80s along the coast/L90s inland Mon-Tue, dropping back by a couple
of degrees for Wed. Mins 70-75F.

&&

.AVIATION...
Outside brief MVFR cigs this morning, fair aviation conditions
through the morning. Then as SHRA coverage increases in the late
morning and TSRA in the afternoon, visibilities will be impacted in
moderate to heavy rain, and brief periods of gusty winds of 30 to 40
kt and frequent lightning. Especially along the coastal sites. By
evening, conditions should improve with isolated instances of low
cigs.

&&

.MARINE...
Today-tonight...With Cristobal to our west over the gulf and an
Atlantic ridge to our east, the east central FL coastal waters will
remain in a southeast to south wind flow of 10 to 15 kt today and
tonight. Seas 2-4 ft except near any storm that could produce
locally higher seas and winds.

Monday-Thursday...Atlantic high pressure ridge will maintain
light/moderate SE-S flow through Wed, backing to easterly and
freshening some as a second high builds offshore the SE CONUS.
Showers/few TS decrease in coverage from early to mid week to
isolated-scattered. Seas 3ft or less.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...Flood Watch through this evening for Indian River-Martin-
     Northern Brevard-Northern Lake-Okeechobee-Orange-Osceola-
     Seminole-Southern Brevard-Southern Lake-St. Lucie.

AM...None.

&&

JP/JC
Hazardous weather outlook, Jun 7, 9:45 AM EDT, 5 hours 23 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
945 AM EDT Sun Jun 7 2020

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-080000-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia-
Northern Lake-Orange-Seminole-Southern Brevard-Osceola-
Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia-
Southern Lake-Northern Brevard-
945 AM EDT Sun Jun 7 2020

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
Isolated to scattered thunderstorms are possible late this morning
and afternoon, with higher coverage north of Okeechobee and
Brevard Counties. Storms will be capable of producing localized
gusty winds of 40 to 50 mph, frequent lightning strikes, and
higher rainfall amounts. Wind profiles also support the potential
for a couple of tornadoes as well.

.FLOOD IMPACT...
Showers and isolated thunderstorms will once again develop late
this morning and afternoon across the area, mostly north of
Okeechobee and Brevard Counties. New rainfall amounts of 1 to 2
inches are possible, with locally higher amounts in stronger
thunderstorms or areas under persistent rainfall. The Flood Watch
remains in effect through this evening for most of east central
Florida except Volusia county.

.MARINE THUNDERSTORM GUST IMPACT...
Isolated to scattered thunderstorms over the east central coastal
waters and inland lakes today will be capable of producing wind
gusts of 34 knots. Mariners should seek safe harbor when storms
threaten.

.WATERSPOUT IMPACT...
Conditions are favorable for the development of a few waterspouts
across the area again this afternoon. These waterspouts could
develop over large inland lake, rivers, the coastal waterways, and
adjacent Atlantic waters.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
Scattered to numerous showers and isolated to scattered thunderstorms
are expected from Mon through the end of the week. Deadly cloud
to ground lightning strikes and gusty winds will be the primary
storm threats. Localized heavy rainfall will continue to pose a
flood threat, especially across areas that have seen excessive
rainfall over the past week.

.SPOTTER INFORMATION STATEMENT...
Spotters are requested to monitor the weather and self activate
if needed.

Combs

In the hours before

Special weather statement, Jun 7, 3:08 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Melbourne FL
308 PM EDT Sun Jun 7 2020

FLZ044-071945-
Northern Lake County-
308 PM EDT Sun Jun 7 2020

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL LAKE COUNTY...

At 308 PM EDT, a strong thunderstorm was located over Fruitland Park,
or over Leesburg, moving northeast at 25 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Leesburg, Lady Lake, Lake Griffin, Lisbon and Emeralda.

Funnel clouds can occasionally touch down and produce brief small
tornadoes. Move indoors and stay away from windows.

LAT...LON 2896 8195 2896 8171 2878 8185 2878 8195
TIME...MOT...LOC 1908Z 207DEG 21KT 2884 8191

Combs

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 8:01 PM EDTTornado WarningMLBLake, Volusia29 min
Jun 6, 8:04 PM EDTSpecial Weather StatementMLBLake, Orange56 min
Jun 6, 8:14 PM EDTTornado WarningMLBSeminole, Volusia31 min
Jun 6, 8:43 PM EDTTornado WarningMLBOrange17 min
Jun 6, 8:45 PM EDTSevere Thunderstorm WarningMLBVolusia60 min
Jun 6, 8:59 PM EDTTornado Warning Tornado observedMLBOrange, Seminole31 min
Jun 6, 9:14 PM EDTTornado WarningMLBLake31 min
Jun 6, 9:19 PM EDTSpecial Marine WarningMLB116 min
Jun 6, 9:26 PM EDTSpecial Weather StatementMLBOrange, Seminole, Volusia49 min
Jun 6, 11:14 PM EDTSpecial Marine WarningMLB91 min
Jun 7, 10:35 AM EDTSpecial Marine WarningMLB85 min
Jun 7, 3:13 PM EDTTornado WarningMLBLake32 min
Jun 7, 3:44 PM EDTTornado WarningMLBLake31 min
Jun 7, 4:20 PM EDTAreal Flood AdvisoryMLBMartin55 min
Jun 7, 4:22 PM EDTSpecial Weather StatementMLBVolusia53 min
Jun 7, 4:53 PM EDTSpecial Marine WarningMLB67 min
Jun 7, 5:47 PM EDTSpecial Weather StatementMLBOsceola43 min
Jun 7, 6:15 PM EDTSpecial Weather StatementMLBOrange45 min
Jun 7, 6:32 PM EDTSpecial Weather StatementMLBLake43 min
Jun 7, 7:30 PM EDTSpecial Weather StatementMLBVolusia45 min
Jun 7, 7:40 PM EDTSpecial Weather StatementMLBSaint Lucie35 min
Jun 7, 7:43 PM EDTSpecial Marine WarningMLB47 min
Jun 7, 7:46 PM EDTSpecial Weather StatementMLBSeminole44 min

Nearby

Special Weather Statements in Florida, 2020Every special weather statement in 2020

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.