Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Tampa Bay, FL

June 22, 2011Pasco County, Florida

NWS Tampa Bay, FL issued this special weather statement at Jun 22, 2011, 4:02 PM EDT for Pasco County, Florida. It was in force for 43 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 22, 2011, 4:02 PM EDT (20:02 UTC)
Expired: Jun 22, 2011, 4:45 PM EDT
In force: 43 min
Issued by: NWS Tampa Bay, FL

County Pasco County, FL

The radar

The Tampa radar (KTBW), 57 km from the middle of the area, began a volume at 20:05 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, 8.0 hours before the alert went out and 57 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: 1674 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 900 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: -17 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 22, 1:58 PM EDT, 2 hours 4 minutes earlier.

Area forecast discussion, Jun 22, 1:58 PM EDT, 2 hours 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
158 PM EDT WED JUN 22 2011

.SHORT TERM (TONIGHT-FRIDAY)...
MID/UPPER LEVEL RIDGE WILL BE SUPPRESSED TO THE SOUTH AND EAST AS
A TROUGH SETS UP OVER THE EASTERN U.S. DOWN INTO THE GULF OF
MEXICO DURING THE PERIOD. THIS WILL HELP PULL MORE MOISTURE
NORTHWARD INTO FLORIDA WITH PRECIPITABLE WATER VALUES EXPECTED TO
CLIMB TO BETWEEN 1.8 AND 2.0 INCHES. MEANWHILE AT THE SURFACE A
WEAKENING COOL FRONT WILL MOVE INTO THE SOUTHEAST U.S. WITH THE
RIDGE AXIS REMAINING ACROSS SOUTH CENTRAL FLORIDA. THIS WILL
CONTINUE THE OVERALL LIGHT SOUTHEAST TO SOUTH FLOW ACROSS THE
SOUTHERN AND CENTRAL ZONES AND SOUTH TO SOUTHWEST FLOW ACROSS THE
NORTH. THE WEST COAST SEA BREEZE WILL DEVELOP EACH AFTERNOON AND
SHOULD PUSH INLAND TO AROUND THE INTERSTATE 75 CORRIDOR. FOR
THURSDAY THE BEST CHANCE OF CONVECTION SHOULD BE GENERALLY ALONG
AND EAST OF INTERSTATE 75 ACROSS THE NORTHERN AND CENTRAL ZONES
AND ACROSS THE ENTIRE SOUTH. HAVE LEFT 40 POPS IN THESE AREAS AND
LOWERED TO 30 PERCENT FROM THE TAMPA BAY AREA NORTH NEAR THE
COAST. DURING THURSDAY NIGHT AND FRIDAY A BAND OF DEEPER MOISTURE
ASSOCIATED WITH THE REMNANTS OF THE BOUNDARY WILL MOVE INTO THE
NATURE COAST ENHANCING RAIN CHANCES HERE WITH MORE SCATTERED
AFTERNOON AND EVENING CONVECTION EXPECTED FURTHER SOUTH. HAVE
CONTINUED WITH THE 50 POPS FOR FRIDAY EVERYWHERE AT THIS TIME...
BUT LATER SHIFTS MAY NEED TO RAISE POPS ACROSS THE NATURE COAST
AND LOWER THEM ACROSS THE SOUTH. TEMPERATURES WILL BE NEAR TO
SLIGHTLY ABOVE NORMAL THROUGH THE SHORT TERM PERIOD.

.LONG TERM (FRIDAY NIGHT-WEDNESDAY)...
HIGH PRESSURE WILL RIDGE ACROSS THE AREA THROUGH THE PERIOD WITH
THE RIDGE AXIS REMAINING IN PLACE ACROSS NORTHERN FLORIDA. A WEAK
TROUGH WILL BE IN PLACE TO THE WEST AT THE UPPER LEVELS WITH WEAK
RIDGING ACROSS SOUTHERN FLORIDA. AFTERNOON SEA BREEZES WILL
DEVELOP ALONG THE COAST IN THE SOUTH TO SOUTHEAST PREDOMINANT FLOW
EACH DAY. SCATTERED THUNDERSTORMS WILL DEVELOP ALONG THE SEA
BREEZE AND OUTFLOW BOUNDARIES EACH AFTERNOON AND CONTINUE THROUGH
AROUND MIDNIGHT EACH NIGHT. TEMPERATURES WILL BE A DEGREE OR TWO
ABOVE NORMAL EACH DAY WITH HIGHS AROUND 90 TO THE LOWER 90S...AND
LOWS IN THE LOWER TO MID 70S EXCEPT UPPER 70S ALONG THE COAST.

&&

.AVIATION...
SOUTHWEST/WEST FLOW WILL CONTINUE NEAR THE COAST THROUGH THE
EARLY EVENING HOURS. PIE MAY STILL EXPERIENCE NE WINDS THROUGH MID
AFTERNOON AS THE BAY BREEZE GRADUALLY WEAKENS. A FEW THUNDERSTORMS
ARE POSSIBLE...MAINLY IN THE VICINITY OF FMY AND RSW WITH BRIEF
MVFR/LOCAL IFR CONDITIONS THROUGH EARLY THIS EVENING. CONVECTION
SHOULD REMAIN EAST OF TPA/PIE/SRQ THIS AFTERNOON...BUT COULD
MOVE BACK TOWARD THESE SITES THIS EVENING. WINDS WILL AGAIN BECOME
LIGHT AND SKIES CLEAR AFTER 02Z. A SIMILAR DAY WEATHERWISE IS
EXPECTED ON THURSDAY.

&&

.MARINE...
THE SURFACE HIGH PRESSURE RIDGE AXIS WILL REMAIN ACROSS THE REGION
FOR THE NEXT FEW DAYS SUPPORTING LIGHT WINDS AND SLIGHT SEAS FOR THE
NEXT FEW DAYS. A SEA BREEZE WILL DEVELOP ALONG THE COAST EACH
AFTERNOON.

&&

.FIRE WEATHER...
NO FIRE WEATHER HIGHLIGHTS OVER THE NEXT FEW DAYS AS LOW LEVEL
MOISTURE WILL BE INCREASING KEEPING RELATIVE HUMIDITY VALUES
ABOVE CRITICAL LEVELS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA  78  92  78  90 /  20  30  30  50
FMY  76  93  76  91 /  20  40  30  50
GIF  75  94  75  92 /  20  40  30  50
SRQ  76  91  76  89 /  20  30  30  50
BKV  72  94  72  91 /  20  30  30  50
SPG  80  91  80  89 /  20  30  30  50

&&

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

SHORT TERM/MARINE/FIRE WEATHER...69/CLOSE
LONG TERM...24/COLSON
AVIATION...22/REYNES

Hazardous weather outlook, Jun 22, 4:51 AM EDT, 11 hours 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
451 AM EDT WED JUN 22 2011

FLZ039-042-043-048>052-055>057-060>062-065-222000-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE-
451 AM EDT WED JUN 22 2011

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

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
A SLOW INCREASE IN MOISTURE WILL ALLOW SCATTERED THUNDERSTORMS TO
DEVELOP OVER WEST CENTRAL AND SOUTHWEST FLORIDA TODAY AS THE EAST
AND WEST COAST SEA BREEZE BOUNDARIES COLLIDE OVER INLAND LOCATIONS
DURING THE LATE AFTERNOON AND EARLY EVENING HOURS. THE STORMS WILL
LIKELY LINGER AND MOVE TOWARD COASTAL LOCATIONS THROUGH THE EVENING
HOURS TONIGHT AS THE SEA BREEZE AND OUTFLOW BOUNDARIES DRIFT TOWARD
THE WEST UNDER A LIGHT EAST SOUTHEAST STEERING FLOW. STORMS THAT
DEVELOP TODAY WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINS...
STRONG GUSTY WINDS...FREQUENT LIGHTNING STRIKES...AND SMALL HAIL.

...EXCESSIVE HEAT IMPACT...
TEMPERATURES CLIMBING INTO THE MID AND UPPER 90S COMBINED WITH A
HUMID AIR MASS WILL PRODUCE HEAT INDICES IN THE 103 TO 109 DEGREE
RANGE OVER INLAND LOCATIONS DURING THE AFTERNOON. IF YOU WORK
OUTDOORS REMEMBER TO DRINK PLENTY OF WATER AND TAKE FREQUENT BREAKS
IN THE SHADE. DO NOT LEAVE CHILDREN OR PETS IN LOCKED VEHICLES!
TEMPERATURES CAN RISE ABOVE 130 DEGREES IN MINUTES...QUICKLY
INCREASING THE CHANCE FOR HEAT STROKE AND POSSIBLE DEATH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

...THUNDERSTORM IMPACT...
A CONTINUED INCREASE IN MOISTURE COUPLED WITH UPPER LEVEL
DISTURBANCES AND THE SEA BREEZE CIRCULATIONS WILL FAVOR SCATTERED
SHOWERS AND THUNDERSTORMS ACROSS THE REGION EACH DAY DURING THE
AFTERNOON AND EARLY EVENING HOURS. STORMS THAT DEVELOP WILL BE
CAPABLE OF PRODUCING LOCALLY HEAVY RAINS...FREQUENT LIGHTNING
STRIKES...STRONG GUSTY WINDS...AND SMALL HAIL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

MCMICHAEL

In the hours before

Special weather statement, Jun 22, 2:29 PM EDT, 1 hour 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
229 PM EDT WED JUN 22 2011

FLZ050-221915-
PINELLAS-
229 PM EDT WED JUN 22 2011

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL PINELLAS COUNTY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A THUNDERSTORM
LOCATED NEAR PINELLAS PARK...AND NEARLY STATIONARY...WILL AFFECT
PINELLAS PARK...LEALMAN...KENNETH CITY AND HIGHPOINT...UNTIL 315 PM
EDT.

THIS INCLUDES INTERSTATE 275 BETWEEN EXITS 20 AND 31.

GUSTY WINDS 35 TO 45 MPH WILL OCCUR. FREQUENT LIGHTNING IS EXPECTED.
TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT OUTSIDE...FIND A LOW
SPOT...AND STAY AWAY FROM TALL OBJECTS. WHEN DRIVING THROUGH HEAVY
RAIN...SLOW DOWN. ALWAYS LEAVE A SAFE DISTANCE BETWEEN YOU AND OTHER
VEHICLES.

&&

LAT...LON 2805 8282 2796 8266 2795 8271 2792 8265
      2789 8261 2775 8268 2779 8276 2778 8276
      2779 8282 2786 8286 2791 8286
TIME...MOT...LOC 1828Z 116DEG 2KT 2787 8273

JOHNSON

Special weather statement, Jun 22, 3:38 PM EDT, 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
338 PM EDT WED JUN 22 2011

FLZ039-222030-
LEVY-
338 PM EDT WED JUN 22 2011

...STRONG THUNDERSTORMS WILL AFFECT CENTRAL LEVY COUNTY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THUNDERSTORMS
LOCATED NEAR OTTER CREEK...OR 11 MILES SOUTHWEST OF BRONSON...MOVING
NORTHWEST AT 15 MPH...WILL AFFECT OTTER CREEK AND CHIEFLAND...UNTIL
430 PM EDT.

GUSTY WINDS 35 TO 45 MPH WILL OCCUR. FREQUENT LIGHTNING IS EXPECTED.
TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT OUTSIDE...FIND A LOW
SPOT...AND STAY AWAY FROM TALL OBJECTS. WHEN DRIVING THROUGH HEAVY
RAIN...SLOW DOWN. ALWAYS LEAVE A SAFE DISTANCE BETWEEN YOU AND OTHER
VEHICLES.

&&

LAT...LON 2932 8261 2922 8274 2940 8304 2944 8302
      2948 8299 2951 8299 2961 8292 2960 8286
TIME...MOT...LOC 1939Z 136DEG 11KT 2932 8276

JOHNSON

Special weather statement, Jun 22, 4:02 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
402 PM EDT WED JUN 22 2011

FLZ049>051-222045-
PINELLAS-HILLSBOROUGH-PASCO-
402 PM EDT WED JUN 22 2011

...STRONG THUNDERSTORMS WILL AFFECT SOUTHWESTERN PASCO...NORTHWESTERN
HILLSBOROUGH AND NORTHERN PINELLAS COUNTIES...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THUNDERSTORMS
LOCATED NEAR OLDSMAR...OR 7 MILES EAST OF PALM HARBOR...MOVING
NORTHWEST AT 10 MPH...WILL AFFECT OLDSMAR...PALM HARBOR...TARPON
SPRINGS AND HOLIDAY...UNTIL 445 PM EDT.

GUSTY WINDS 35 TO 45 MPH WILL OCCUR. FREQUENT LIGHTNING IS EXPECTED.
TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT OUTSIDE...FIND A LOW
SPOT...AND STAY AWAY FROM TALL OBJECTS. WHEN DRIVING THROUGH HEAVY
RAIN...SLOW DOWN. ALWAYS LEAVE A SAFE DISTANCE BETWEEN YOU AND OTHER
VEHICLES.

&&

LAT...LON 2810 8280 2811 8279 2815 8279 2816 8281
      2825 8274 2812 8256 2802 8261 2807 8279
      2808 8279 2809 8281
TIME...MOT...LOC 2002Z 133DEG 7KT 2810 8265

JOHNSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 8:13 PM EDT	Special Weather Statement	TBW	Hillsborough	47 min
Jun 21, 9:48 PM EDT	Special Marine Warning	TBW		27 min
Jun 21, 9:48 PM EDT	Special Weather Statement	TBW	Hillsborough	42 min
Jun 22, 2:29 PM EDT	Special Weather Statement	TBW	Pinellas	46 min
Jun 22, 3:38 PM EDT	Special Weather Statement	TBW	Levy	52 min
Jun 22, 4:30 PM EDT	Special Weather Statement	TBW	Hillsborough	45 min
Jun 22, 5:00 PM EDT	Special Weather Statement	TBW	Lee	45 min
Jun 22, 5:28 PM EDT	Severe Thunderstorm Warning	TBW	Lee	47 min
Jun 22, 6:13 PM EDT	Severe Thunderstorm Warning	TBW	Charlotte, Lee	47 min
Jun 22, 6:57 PM EDT	Special Weather Statement	TBW	Charlotte, DeSoto	48 min
Jun 22, 7:15 PM EDT	Special Weather Statement	TBW	Highlands	30 min
Jun 22, 7:41 PM EDT	Special Weather Statement	TBW	DeSoto, Hardee	49 min

Nearby

Special Weather Statements in Florida, 2011 Every special weather statement in 2011

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.