Alert archive / Florida / Special Weather Statements in 2014

Special Weather Statement, NWS Tampa Bay, FL

August 7, 2014Highlands County, Florida

NWS Tampa Bay, FL issued this special weather statement at Aug 7, 2014, 4:22 PM EDT for Highlands County, Florida. It was in force for 38 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 7, 2014, 4:22 PM EDT (20:22 UTC)
Expired
Aug 7, 2014, 5:00 PM EDT
In force
38 min
Issued by
NWS Tampa Bay, FL

County Highlands County, FL

The radar

The Tampa radar (KTBW), 116 km from the middle of the area, began a volume at 20:24 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, 8.4 hours before the alert went out and 116 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 2014-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1410 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 2014-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 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
1410 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
957 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
0 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 Aug 7, 3:09 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Aug 7, 3:09 PM EDT, 1 hour 13 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
309 PM EDT THU AUG 7 2014

.SHORT TERM (TONIGHT AND FRIDAY)...
SCATTERED THUNDERSTORMS DEVELOPING ON SCHEDULE WITH OUTFLOW AND
SEA BREEZE BOUNDARIES BEGINNING TO PUSH INLAND. EXPECT ACTIVITY TO
BECOME MORE NUMEROUS WITH SOME HEAVY RAIN POTENTIAL OVER THE
INTERIOR LATER THIS AFTERNOON AND INTO THE EVENING HOURS.

TONIGHT AND FRIDAY WILL FEATURE WEAK HIGH PRESSURE OVER THE STATE
AT THE SURFACE AND NO REAL SYNOPTIC SCALE FORCING TO SPEAK OF
ALOFT. MODELS DO SHOW SOME SLIGHTLY COOLER MID-LEVEL AIR MOVING IN
DURING THE DAY ON FRIDAY...AND THIS COULD HELP TO STEEPEN LAPSE
RATES ENOUGH TO RESULT IN MORE CONCENTRATED THUNDERSTORM ACTIVITY
WITH A FEW STRONG STORMS OVER THE INTERIOR. EVEN SO...WE ARE ONLY
TALKING ABOUT 500MB TEMPERATURES OF -7C AS OPPOSED TO -6C TODAY.

INITIAL ISOLATED TO SCATTERED SHOWERS AND STORMS NEAR THE COAST ON
FRIDAY WILL BECOME MORE NUMEROUS AS THEY PUSH EAST OF I-75 DURING
THE AFTERNOON HOURS.

.LONG TERM (PREVIOUS DISCUSSION FRIDAY NIGHT-WEDNESDAY)...
FOR THE WEEKEND...THE AREA WILL REMAIN UNDER RATHER LIGHT FLOW WITH
THE SURFACE RIDGE AXIS OVER SOUTH FLORIDA. AN UPPER LEVEL RIDGE WILL
REMAIN OVER THE WESTERN ATLANTIC WITH A SHORTWAVE MOVING THROUGH THE
SOUTHEASTERN U.S. BOTH THE ECMWF AND THE GFS SHOW A SURFACE LOW
FORMING AROUND THE CAROLINAS ON SUNDAY AND MOVING OFFSHORE FOR
MONDAY. THE RIDGE AXIS WILL SHIFT NORTH SOME THROUGH THE MIDDLE PART
OF THE WEEK WITH SOUTHWEST TO WEST FLOW CONTINUING. THE SEA BREEZE
CIRCULATION WILL BE THE DOMINANT FACTOR IN CONVECTION...WITH THE
BEST RAIN CHANCES CONTINUING TO BE OVER INLAND AREAS EACH AFTERNOON
AND EVENING.

&&

.AVIATION...
STILL EXPECTING MAINLY VFR BUT KTPA...KPGD...KFMY...AND KRSW
WILL HAVE STORMS NEARBY AND COULD BRIEFLY SEE IFR CONDITIONS IF
ONE MOVES OVERHEAD. ACTIVITY WILL PUSH INLAND WITH KLAL HAVING
HIGHEST POTENTIAL FOR IFR AFTER 20Z. ALL TERMINALS SHOULD BE VFR
AFTER 02Z WITH SOME TSRA DEVELOPING AGAIN TOWARD END OF TAF
PERIOD.

&&

.MARINE...
HIGH PRESSURE OVER SOUTHERN FLORIDA AND IN THE CENTRAL GULF OF
MEXICO WILL PRODUCE LIGHT WEST TO NORTHWEST WINDS AND SEAS
FOR THE REMAINDER OF THE WEEK. HIGH PRESSURE IN THE ATLANTIC
BECOMES THE DOMINANT FEATURE BY THE WEEKEND...PRODUCING LIGHT
EAST SOUTHEAST WIND FLOW AND SEAS. THUNDERSTORM ACTIVITY OVER
THE COASTAL WATERS WILL BE MINIMAL. THE ONLY OTHER HAZARDS
WILL BE HIGHER WINDS AND SEAS IN THE VICINITY OF ISOLATED
THUNDERSTORMS.

&&

.FIRE WEATHER...
NO FIRE WEATHER CONCERNS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA  78  91  78  90 /  10  40  30  50
FMY  76  92  76  92 /  20  50  30  50
GIF  75  93  75  93 /  30  60  20  50
SRQ  76  90  75  90 /  10  30  20  40
BKV  72  92  72  92 /  10  40  20  50
SPG  80  90  79  90 /  10  40  30  40

&&

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

&&

SHORT TERM/AVIATION/FIRE WEATHER...JILLSON
PREVIOUS LONG TERM...CARLISLE
MARINE...WYNN
DECISION SUPPORT...DAVIS/MCMICHAEL
Hazardous weather outlook, Aug 7, 5:16 AM EDT, 11 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
516 AM EDT THU AUG 7 2014

FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-
239-242-248-249-251-255-260-262-265-GMZ830-836-850-853-856-870-
873-876-080930-
SUMTER-PINELLAS-POLK-HARDEE-HIGHLANDS-DESOTO-COASTAL LEVY-
COASTAL CITRUS-COASTAL HERNANDO-COASTAL PASCO-
COASTAL HILLSBOROUGH-COASTAL MANATEE-COASTAL SARASOTA-
COASTAL CHARLOTTE-COASTAL LEE-INLAND LEVY-INLAND CITRUS-
INLAND HERNANDO-INLAND PASCO-INLAND HILLSBOROUGH-INLAND MANATEE-
INLAND SARASOTA-INLAND CHARLOTTE-INLAND LEE-TAMPA BAY WATERS-
CHARLOTTE HARBOR AND PINE ISLAND SOUND-
TARPON SPRINGS TO SUWANNEE RIVER OUT 20 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 NM-
TARPON SPRINGS TO SUWANNEE RIVER OUT 20 TO 60 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 TO 60 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 TO 60 NM-
516 AM EDT THU AUG 7 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST
FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
SCATTERED THUNDERSTORMS ARE EXPECTED. THUNDERSTORMS THAT DEVELOP
WILL BE CAPABLE OF PRODUCING STRONG GUSTY WINDS...LOCALLY HEAVY
RAINS... AND FREQUENT DEADLY LIGHTNING STRIKES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

...THUNDERSTORM IMPACT...
SCATTERED THUNDERSTORMS ARE EXPECTED. THUNDERSTORMS WILL BE
CAPABLE OF PRODUCING STRONG GUSTY WINDS...LOCALLY HEAVY
RAINS...AND FREQUENT DEADLY LIGHTNING STRIKES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

CARLISLE

In the hours before

Special weather statement, Aug 7, 3:23 PM EDT, 59 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
323 PM EDT THU AUG 7 2014

FLZ052-056-061-251-255-260-072000-
DESOTO-HARDEE-POLK-INLAND MANATEE-INLAND SARASOTA-INLAND HILLSBOROUGH-
323 PM EDT THU AUG 7 2014

...STRONG THUNDERSTORMS WILL AFFECT EAST CENTRAL SARASOTA...EASTERN
MANATEE...SOUTHEASTERN HILLSBOROUGH...SOUTHWESTERN POLK...WESTERN
DESOTO AND WESTERN HARDEE COUNTIES...

AT 322 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
LINE OF STRONG THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM FORT
LONESOME TO 8 MILES WEST OF PINE LEVEL...OR ALONG A LINE EXTENDING
FROM 14 MILES SOUTHEAST OF FISH HAWK TO 14 MILES NORTH OF NORTH
PORT...MOVING SOUTHEAST AT 5 MPH...WILL AFFECT ALAFIA RIVER STATE
PARK...FORT LONESOME...DUETTE AND MYAKKA CITY...UNTIL 400 PM EDT.

GUSTY WINDS 35 TO 45 MPH WILL BE POSSIBLE. FREQUENT LIGHTNING IS
EXPECTED. TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT
OUTSIDE...FIND A LOW SPOT...AND STAY AWAY FROM TALL OBJECTS.
TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO AND WILL CAUSE
PONDING OF WATER ON ROADWAYS. MOTORISTS SHOULD EXERCISE CAUTION IF
ENCOUNTERING HEAVY RAIN.

&&

LAT...LON 2781 8176 2707 8179 2710 8220 2781 8218
TIME...MOT...LOC 1922Z 293DEG 6KT 2768 8209 2723 8211
Special weather statement, Aug 7, 4:22 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
422 PM EDT THU AUG 7 2014

FLZ057-072100-
HIGHLANDS-
422 PM EDT THU AUG 7 2014

...STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN HIGHLANDS COUNTY...

AT 421 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
STRONG THUNDERSTORMS LOCATED NEAR PLACID LAKES...OR 6 MILES
SOUTHWEST OF LAKE PLACID...MOVING EAST AT 5 MPH...WILL AFFECT LAKE
PLACID..LAKE JOSEPHINE...VENUS...AND ARCHBOLD...UNTIL 500 PM EDT.

GUSTY WINDS 35 TO 45 MPH WILL BE POSSIBLE. FREQUENT LIGHTNING IS
EXPECTED. TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT
OUTSIDE...FIND A LOW SPOT...AND STAY AWAY FROM TALL OBJECTS.
TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO AND WILL CAUSE
PONDING OF WATER ON ROADWAYS. MOTORISTS SHOULD EXERCISE CAUTION.

&&

LAT...LON 2703 8127 2704 8148 2734 8155 2742 8140
      2737 8125
TIME...MOT...LOC 2021Z 260DEG 4KT 2722 8142

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 3:23 PM EDTSpecial Weather StatementTBWDeSoto, Hardee37 min
Aug 7, 5:17 PM EDTSpecial Weather StatementTBWHighlands43 min
Aug 7, 5:24 PM EDTSevere Thunderstorm WarningTBWHighlands36 min
Aug 7, 5:49 PM EDTAreal Flood AdvisoryTBWHighlands56 min
Aug 7, 6:02 PM EDTSpecial Weather StatementTBWHighlands43 min
Aug 7, 6:06 PM EDTSevere Thunderstorm WarningTBWPolk24 min
Aug 7, 6:32 PM EDTAreal Flood AdvisoryTBWPolk58 min

Nearby

Special Weather Statements in Florida, 2014Every special weather statement in 2014

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.