Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this special weather statement at Aug 9, 2011, 11:06 AM EDT for Polk 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
- Aug 9, 2011, 11:06 AM EDT (15:06 UTC)
- Expired
- Aug 9, 2011, 11:45 AM EDT
- In force
- 39 min
- Issued by
- NWS Tampa Bay, FL
County Polk County, FL
The radar
The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 15:07 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.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 3.1 hours before the alert went out and 95 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
- 3252 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 563 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 68 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 Aug 9, 9:05 AM EDT, 2 hours 1 minute earlier.
Area forecast discussion, Aug 9, 9:05 AM EDT, 2 hours 1 minute before
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</html>Hazardous weather outlook, Aug 9, 5:41 AM EDT, 5 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 541 AM EDT TUE AUG 9 2011 FLZ039-042-043-048>052-055>057-060>062-065-091600- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 541 AM EDT TUE AUG 9 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... NUMEROUS THUNDERSTORMS WILL BE POSSIBLE TODAY AND TONIGHT UNDER A WARM AND MOIST WESTERLY FLOW. HEAVY RAINS...GUSTY WINDS AND FREQUENT DEADLY LIGHTNING WILL BE THE MAIN HAZARDS WITH THE STORMS. ...RIP CURRENT IMPACT... THERE IS A MODERATE RISK OF RIP CURRENTS AT AREA BEACHES TODAY WITH A MODERATE WESTERLY FLOW IN PLACE. A RIP CURRENT IS A 10 TO 30 YARD WIDE CHANNEL OF WATER THAT CAN PULL EVEN A STRONG SWIMMER INTO DEEPER WATER. TO AVOID GETTING CAUGHT IN A RIP CURRENT...SWIM AT GUARDED BEACHES AND HEED THE ADVICE OF THE BEACH PATROL. AT UNGUARDED BEACHES AND NEAR PIERS...JETTIES...AND INLETS...DO NOT GO INTO THE SURF MUCH ABOVE YOUR KNEES. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ...THUNDERSTORM IMPACT... SCATTERED TO NUMEROUS THUNDERSTORMS WILL BE POSSIBLE EACH DAY AND NIGHT WITH GUSTY WINDS...HEAVY RAINS AND FREQUENT DEADLY LIGHTNING POSSIBLE. ...EXCESSIVE HEAT IMPACT... AFTERNOON TEMPERATURES WILL CLIMB INTO THE LOWER TO MID 90S FOR THE END OF THE WEEK. THIS WILL ALLOW HEAT INDEX VALUES TO BE GENERALLY AROUND 105. ...RIP CURRENT IMPACT... WESTERLY WINDS WILL BRING A MODERATE RISK OF RIP CURRENTS TO AREA BEACHES THROUGH THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. COLSON
In the hours before
Special weather statement, Aug 9, 11:06 AM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1106 AM EDT TUE AUG 9 2011
FLZ051-052-091545-
POLK-HILLSBOROUGH-
1106 AM EDT TUE AUG 9 2011
...STRONG THUNDERSTORMS WILL AFFECT SOUTHEASTERN HILLSBOROUGH AND
POLK COUNTIES...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THUNDERSTORMS
LOCATED ALONG A LINE EXTENDING FROM LOUGHMAN TO FORT LONESOME...OR
ALONG A LINE EXTENDING FROM INTERCESSION CITY TO 20 MILES SOUTHEAST
OF BRANDON...MOVING EAST AT 20 MPH...WILL AFFECT WINTER HAVEN...
MULBERRY...LAKE ALFRED AND INWOOD...UNTIL 1145 AM EDT.
GUSTY WINDS 35 TO 45 MPH WILL OCCUR. TORRENTIAL RAINS WILL REDUCE
VISIBILITY TO NEAR ZERO AND WILL CAUSE PONDING OF WATER ON ROADWAYS.
&&
LAT...LON 2802 8138 2805 8145 2800 8141 2801 8139
2800 8138 2797 8137 2765 8173 2765 8226
2827 8156 2820 8152 2815 8152 2815 8146
2809 8144 2808 8134
TIME...MOT...LOC 1506Z 274DEG 17KT 2821 8151 2769 8208The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 10:41 AM EDT | Special Marine Warning | TBW | 34 min | |
| Aug 9, 12:10 PM EDT | Special Weather Statement | TBW | Hardee | 50 min |
| Aug 9, 1:45 PM EDT | Areal Flood Advisory | TBW | Hillsborough, Pasco | 60 min |
| Aug 9, 2:13 PM EDT | Areal Flood Advisory | TBW | Pinellas | 3 hr |
| Aug 9, 2:22 PM EDT | Special Marine Warning | TBW | 23 min | |
| Aug 9, 2:24 PM EDT | Special Marine Warning | TBW | 51 min | |
| Aug 9, 2:46 PM EDT | Areal Flood Advisory | TBW | Hillsborough | 3 hr |
| Aug 9, 2:46 PM EDT | Special Weather Statement | TBW | Manatee | 44 min |
| Aug 9, 2:49 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough, Manatee | 41 min |
| Aug 9, 3:04 PM EDT | Special Weather Statement | TBW | Manatee, Sarasota | 41 min |
| Aug 9, 3:05 PM EDT | Special Marine Warning | TBW | 29 min | |
| Aug 9, 3:16 PM EDT | Areal Flood Advisory | TBW | Hillsborough, Manatee | 119 min |
| Aug 9, 3:24 PM EDT | Special Weather Statement | TBW | Manatee | 51 min |
| Aug 9, 3:46 PM EDT | Severe Thunderstorm Warning | TBW | DeSoto, Hardee, Manatee | 29 min |
| Aug 9, 4:39 PM EDT | Special Weather Statement | TBW | Highlands | 51 min |
| Aug 9, 5:01 PM EDT | Special Marine Warning | TBW | 44 min | |
| Aug 9, 6:41 PM EDT | Special Marine Warning | TBW | 34 min |
Nearby
Special Weather Statements in Florida, 2011Every 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.