Alert archive / Florida / Special Weather Statements in 2013

Special Weather Statement, NWS Tampa Bay, FL

June 13, 2013Highlands County, Florida

NWS Tampa Bay, FL issued this special weather statement at Jun 13, 2013, 4:12 PM EDT for Highlands County, Florida. It was in force for 48 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: Jun 13, 2013, 4:12 PM EDT (20:12 UTC)
Expired: Jun 13, 2013, 5:00 PM EDT
In force: 48 min
Issued by: NWS Tampa Bay, FL

County Highlands County, FL

The radar

The Tampa radar (KTBW), 87 km from the middle of the area, began a volume at 20:14 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

Miami, FL (KMFL), launched 12:00Z, 8.2 hours before the alert went out and 224 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1929 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Tampa Bay, FL wrote its last area forecast discussion before this special weather statement went out at Jun 12, 4:22 PM EDT, 23 hours 50 minutes earlier.

Area forecast discussion, Jun 12, 4:22 PM EDT, 23 hours 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
422 PM EDT WED JUN 12 2013

.SHORT TERM (TONIGHT-FRIDAY)...
SOME DRIER AIR BEGINNING TO MOVE INTO THE NORTHERN HALF OF THE
AREA WHICH IS LIMITING CONVECTION. HOWEVER...ACROSS SOUTH OF THE
RIDGE AXIS OVER OUR SOUTHERN ZONES THE MOISTURE REMAINS DEEP AND
THIS IS COMBINING WITH THE SEA BREEZE AND OUTFLOW BOUNDARIES TO
CAUSE SCATTERED TO NUMEROUS STORMS. CONVECTION WILL WIND DOWN THIS
EVENING WITH MOSTLY CLEAR TO PARTLY CLOUDY SKIES OVERNIGHT. ON
THURSDAY THE RIDGE AXIS WILL CONTINUE TO DRIFT SOUTH WITH THE
DRIER AIR CONTINUING ACROSS THE NORTHERN HALF OF THE REGION AND
WINDS BECOMING MORE WESTERLY ACROSS THE AREA. THIS WILL LIMIT RAIN
CHANCES TO 20 PERCENT FOR ALL BUT THE SOUTHERN INTERIOR AND
SOUTHWEST ZONES WHERE AM PLANNING ON GOING WITH 30 POPS. THURSDAY
NIGHT INTO FRIDAY THE RIDGE AXIS SINKS INTO THE FLORIDA KEYS WITH
A WEAKENING COLD FRONT DROPPING INTO NORTH FLORIDA AND EVENTUALLY
OUR AREA DURING FRIDAY. MOISTURE WILL REMAIN LIMITED SO HAVE ONLY
GONE WITH SLIGHT CHANCE POPS AT THIS TIME. HIGH TEMPERATURES WILL
CLIMB INTO THE MID 90S OVER INLAND AREAS WITH THE WESTERLY WINDS
OFF THE GULF KEEPING COASTAL AREAS IN THE 80S. OVERNIGHT LOWS WILL
FALL TO AROUND 70 OVER INLAND AREAS AND REMAIN IN THE MID TO UPPER
70S CLOSE TO THE COAST.

.LONG TERM (FRIDAY NIGHT-WEDNESDAY)...
THE LONG TERM PERIOD BEGINS WITH A DECAYING FRONTAL BOUNDARY
ACROSS THE PENINSULA. BY SATURDAY AFTERNOON...SURFACE AND UPPER
LEVEL RIDGING WILL BUILD ACROSS THE REGION. THE SURFACE HIGH WILL
SHIFT EAST THROUGH THE EARLY PART OF NEXT WEEK...WITH THE AXIS
REMAINING NORTH OF THE AREA AND KEEPING EAST TO SOUTHEAST WINDS IN
PLACE WITH A SEA BREEZE FORMING EACH AFTERNOON. BEST RAIN CHANCES
WILL CONTINUE TO BE IN THE AFTERNOON AND EVENING HOURS EACH DAY...
ALTHOUGH SOMEWHAT DRIER AIR WILL BE IN PLACE. TEMPERATURES WILL BE
WITHIN A DEGREE OR TWO OF NORMAL VALUES.

&&

.AVIATION...
MAINLY VFR CONDITIONS WILL PERSIST WITH SCATTERED STORMS AROUND
PGD...FMY AND RSW INTO THE EVENING HOURS.

&&

.MARINE...
SURFACE RIDGE AXIS WILL DRIFT SOUTH INTO THE FLORIDA STRAITS OVER
THE NEXT FEW DAYS WITH AN INCREASING WESTERLY FLOW SETTING UP
THROUGH FRIDAY THEN A MORE LIGHT AND VARIABLE FLOW WILL RETURN
OVER THE WEEKEND. WINDS COULD REACH EXERCISE CAUTION CRITERIA OVER
THE NORTHERN WATERS DURING FRIDAY.

&&

.FIRE WEATHER...
NO FIRE WEATHER CONCERNS FOR THE NEXT FEW DAYS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA  76  91  76  90 /  20  10  10  20
FMY  73  91  74  91 /  20  30  20  20
GIF  73  94  73  93 /  20  20  10  20
SRQ  74  89  74  89 /  20  10  10  20
BKV  70  93  71  92 /  10  10  10  20
SPG  78  91  78  90 /  20  10  10  20

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GULF WATERS...NONE.
&&

SHORT TERM/MARINE/FIRE WEATHER...69/CLOSE
LONG TERM...05/CARLISLE
AVIATION...63/JILLSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 2:53 PM EDT	Special Weather Statement	TBW	Charlotte	52 min
Jun 13, 3:36 PM EDT	Special Weather Statement	TBW	DeSoto	39 min
Jun 13, 4:17 PM EDT	Special Weather Statement	TBW	Charlotte	43 min
Jun 13, 4:25 PM EDT	Areal Flood Advisory	TBW	Highlands	65 min
Jun 13, 5:00 PM EDT	Special Weather Statement	TBW	Lee	60 min
Jun 13, 5:30 PM EDT	Areal Flood Advisory	TBW	Lee	60 min

Nearby

Special Weather Statements in Florida, 2013 Every special weather statement in 2013

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.