Alert archive / Florida / Special Weather Statements in 2009
Special Weather Statement, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this special weather statement at Jun 15, 2009, 4:21 PM EDT for Pasco County, Florida. It was in force for 39 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 15, 2009, 4:21 PM EDT (20:21 UTC)
- Expired
- Jun 15, 2009, 5:00 PM EDT
- In force
- 39 min
- Issued by
- NWS Tampa Bay, FL
County Pasco County, FL
The radar
The Tampa radar (KTBW), 88 km from the middle of the area, began a volume at 20:21 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 88 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
- 2023 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 618 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 15, 1:24 PM EDT, 2 hours 57 minutes earlier.
Area forecast discussion, Jun 15, 1:24 PM EDT, 2 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 124 PM EDT MON JUN 15 2009 .SHORT TERM (TONIGHT - WEDNESDAY)...THE GFS AND NAM DIFFER SOMEWHAT WITH REGARDS TO THE POSITION OF THE SURFACE RIDGE OVER THE STATE. THIS WILL HAVE SOME IMPACT ON WHERE SEA BREEZE CONVERGENCE BOUNDARIES SET UP...AND ULTIMATELY WHO SEES A FEW STORMS AND WHO DOES NOT. THIS IS ESPECIALLY EVIDENT ON WEDNESDAY WHEN THE NAM BRINGS STRONGER EASTERLY FLOW ACROSS OUR REGION...EFFECTIVELY PINNING THE GULF COAST SEA BREEZE TO NEAR THE I-75 CORRIDOR. THE GFS MAINTAINS THE RIDGE OVER OUR SOUTHERN ZONES...KEEPING SOUTH TO SOUTHWESTERLY FLOW OVER MOST OF OUR FORECAST AREA. THIS WOULD FAVOR A MORE PROGRESSIVE SEA BREEZE...WITH THE MAIN ACTIVITY OCCURRING WELL EAST OF I-75. PREVIOUS FORECASTS FAVORED A MORE WESTERLY EVENT WITH HIGHER RAIN CHANCES OVER THE INTERIOR. WILL STICK WITH PERSISTENCE FOR THIS FORECAST AND CONTINUE ONLY SLIGHT CHANCE POPS ALONG THE COAST. IT WILL CONTINUE ON THE HOT SIDE EACH DAY WITH HIGHS IN THE MID 90S AWAY FROM THE COOLING INFLUENCE OF THE SEA BREEZE. .LONG TERM (WEDNESDAY NIGHT-MONDAY)...THE MID/UPPER HIGH REMAINS OVER THE GULF STATES PROVIDING A DRIER NORTHERLY FLOW ALOFT. THAT MEANS CLOUDS AND AFTERNOON CONVECTION WILL CONTINUE TO BE BELOW NORMAL INTO THE WEEKEND. WITH FEWER CLOUDS... DAYTIME TEMPERATURES WILL BE A FEW DEGREES ABOVE NORMAL. OVER THE WEEKEND A SHORTWAVE WILL APPROACH AND SINK SOUTHWARD ALONG THE EASTERN EDGE OF THE HIGH CARVING OUT THE EAST SIDE OF THE HIGH. THIS MAY ENHANCE CONVECTION BRIEFLY BUT THIS ACTUALLY JUST USHERS IN MORE DRY AND STABLE MID LEVEL FLOW WITH A NORTHERLY COMPONENT. && .AVIATION...AS CONVECTION DEVELOPS ALONG THE SEA BREEZE THIS AFTERNOON TSRA IS POSSIBLE NEAR THE AIRPORTS. THEN VFR CONDITIONS WILL PREVAIL AS CONVECTION MOVES INLAND WITH THE SEA BREEZE THIS AFTERNOON. NEAR AND AFTER DAYBREAK TUESDAY LOW CLOUDS MAY PRODUCE MVFR CONDITIONS. && .MARINE...NO CONCERNS NEXT 5 DAYS AS RIDGE OF HIGH PRESSURE REMAINS OVER OR JUST SOUTH OF OUR WATERS. AFTERNOON SEA BREEZES WILL PRODUCE A BIT MORE CHOP ON THE NEAR SHORE AND BAY WATERS EACH DAY. && .FIRE WEATHER...NO FIRE WEATHER CONCERNS AS LOW-LEVEL MOISTURE REMAINS PLENTIFUL IN GENERALLY HOT AND HUMID AIRMASS. && .PRELIMINARY POINT TEMPS/POPS... TPA 77 93 77 93 / 10 20 10 20 FMY 76 93 75 94 / 10 30 10 30 GIF 76 95 76 95 / 10 40 10 30 SRQ 76 91 75 91 / 10 20 10 20 BKV 70 94 71 94 / 10 30 10 30 SPG 80 92 80 92 / 10 20 10 20 && .TBW WATCHES/WARNINGS/ADVISORIES... FL...NONE. GULF WATERS...NONE. && SHORT TERM/MARINE/FIRE WEATHER...JILLSON LONG TERM/AVIATION...PAXTON
Hazardous weather outlook, Jun 15, 4:11 AM EDT, 12 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 411 AM EDT MON JUN 15 2009 FLZ039-042-043-048>052-055>057-060>062-065-152015- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 411 AM EDT MON JUN 15 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... THUNDERSTORMS ARE EXPECTED TO FORM THIS AFTERNOON AND PRODUCE FREQUENT LIGHTNING...GUSTY WINDS AND HEAVY BUT BRIEF RAINFALL. COVERAGE WILL BE SCATTERED OVER THE INTERIOR BUT ONLY ISOLATED NEAR THE COAST. ...EXCESSIVE HEAT IMPACT... TEMPERATURES WILL RISE QUICKLY INTO THE MID 90S BY MID AFTERNOON WITH HEAT INDICES OF 100 TO 105 IN SCATTERED LOCATIONS AWAY FROM THE GULF. DRINK PLENTY OF WATER...BEFORE YOU GET THIRSTY. WEAR LIGHTWEIGHT AND LIGHT COLORED CLOTHING. RESERVE STRENUOUS EXERCISE FOR EARLY MORNING OR EVENING HOURS. STAY NEAR AIR CONDITIONED LOCATIONS IF POSSIBLE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. ...THUNDERSTORM IMPACT... ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED EACH DAY...FROM EARLY AFTERNOON THROUGH EARLY EVENING. THE SCATTERED STORMS WILL BE MAINLY OVER THE INTERIOR DURING AFTERNOON HOURS. TEMPERATURES WILL CONTINUE TO RUN ABOVE NORMAL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. 09/RKR
In the hours before
Special weather statement, Jun 15, 4:21 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
421 PM EDT MON JUN 15 2009
FLZ048-049-152100-
HERNANDO-PASCO-
421 PM EDT MON JUN 15 2009
...STRONG THUNDERSTORMS WILL AFFECT EASTERN PASCO AND EASTERN
HERNANDO COUNTIES...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A LINE OF
THUNDERSTORMS...MOVING SOUTH AT 10 MPH...WILL AFFECT THE MENTIONED
AREA INCLUDING BROOKSVILLE...RIDGE MANOR...DADE CITY...ZEPHYRHILLS
AND MASARYKTOWN...UNTIL 500 PM EDT.
GUSTY WINDS UP TO 40 MPH WILL OCCUR. FREQUENT LIGHTNING IS EXPECTED.
IF CAUGHT OUTSIDE...FIND A LOW SPOT...AND STAY AWAY FROM TALL
OBJECTS. THESE STORMS MAY PRODUCE PEA SIZE HAIL.
WHEN DRIVING THROUGH HEAVY RAIN...SLOW DOWN. ALWAYS LEAVE A SAFE
DISTANCE BETWEEN YOU AND OTHER VEHICLES.
LAT...LON 2864 8227 2855 8220 2852 8207 2834 8206
2819 8215 2820 8228 2845 8249 2868 8247
2863 8236
TIME...MOT...LOC 2019Z 351DEG 6KT 2856 8234
22The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 5:13 PM EDT | Special Weather Statement | TBW | Citrus | 47 min |
| Jun 15, 5:42 PM EDT | Special Weather Statement | TBW | Polk | 48 min |
| Jun 15, 6:29 PM EDT | Special Weather Statement | TBW | Polk | 31 min |
| Jun 15, 6:48 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 27 min |
| Jun 15, 7:03 PM EDT | Areal Flood Advisory | TBW | Polk | 117 min |
| Jun 15, 7:16 PM EDT | Special Weather Statement | TBW | Hardee | 44 min |
Nearby
Special Weather Statements in Florida, 2009Every special weather statement in 2009
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.