Alert archive / Florida / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 10, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at May 12, 2009, 3:39 PM EDT for Hernando County, Pasco County, Florida. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 12, 2009, 3:39 PM EDT (19:39 UTC)
- Expired
- May 12, 2009, 4:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Storm-based polygon
Counties Hernando County, FL, Pasco County, FL
The radar
The Tampa radar (KTBW), 81 km from the middle of the area, began a volume at 19:42 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 12, 2:30 PM EDT, 1 hour 9 minutes earlier.
Area forecast discussion, May 12, 2:30 PM EDT, 1 hour 9 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, May 12, 5:28 AM EDT, 10 hours 11 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 528 AM EDT TUE MAY 12 2009 FLZ039-042-043-048>052-055>057-060>062-065-121430- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 528 AM EDT TUE MAY 12 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... A COLD FRONT ACROSS THE PANHANDLE AND NORTHERN PENINSULA EARLY THIS MORNING WILL SAG SOUTH INTO THE NATURE COAST DURING THIS AFTERNOON. THIS FRONT COMBINED WITH A MOIST AND UNSTABLE AIR MASS WILL SUPPORT AN INCREASE IN SHOWER AND THUNDERSTORM COVERAGE...ESPECIALLY ALONG THE EAST AND WEST COAST SEA BREEZE CIRCULATIONS AND LEFTOVER OUTFLOW BOUNDARIES. AT THE CURRENT TIME THE GREATEST AREAL COVERAGE OF STORMS IS LIKELY TO SET UP OVER NORTHERN AND CENTRAL INTERIOR LOCATIONS OF WEST CENTRAL FLORIDA...WITH LESS ACTIVITY EXPECTED FROM THE TAMPA BAY AREA SOUTH TO FORT MYERS. RATHER COOL TEMPERATURES IN THE MID LEVELS OF THE ATMOSPHERE COMBINED WITH STRONG INSTABILITY MAY SUPPORT A FEW STRONG STORMS WITH HAIL AND STRONG GUSTY WINDS. IN ADDITION FREQUENT LIGHTNING WILL ACCOMPANY THE STORMS AND A WEAK STEERING FLOW WILL SUPPORT SLOW MOVING STORMS WITH LOCALLY HEAVY RAINFALL IN SOME LOCATIONS. RESIDENT AND VISITORS OF WEST CENTRAL AND SOUTHWEST FLORIDA SHOULD KEEP AN EYE TO THE SKY TODAY. IF YOU HEAR THUNDER OR OBSERVE LIGHTNING MOVE INDOORS IMMEDIATELY. ...FIRE WEATHER IMPACT... A SLOW INCREASE IN LOW LEVEL MOISTURE SHOULD KEEP HUMIDITY VALUES ABOVE CRITICAL LEVELS TODAY. HOWEVER AND INCREASE IN THUNDERSTORMS AND LIGHTNING ACTIVITY MAY SPARK SOME FIRES OVER THE REGION TODAY...BUT HOPEFULLY ENOUGH RAIN ASSOCIATED WITH THE STORMS WILL KEEP ANY EXISTING OR NEW FIRES IN CHECK. RESIDENTS SHOULD CONTINUE TO USE EXTREME CARE WITH ANY OUTDOOR OPEN FLAME TODAY AS EXTREMELY DRY CONDITIONS CONTINUE ACROSS THE REGION. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ...THUNDERSTORM IMPACT... AMPLE MOISTURE AND INSTABILITY COMBINED WITH THE EAST AND WEST COAST SEA BREEZE CIRCULATIONS WILL LEAD TO ADDITIONAL SCATTERED SHOWERS AND THUNDERSTORMS OVER THE REGION ON WEDNESDAY AND THURSDAY. ISOLATED STORMS ARE EXPECTED FRIDAY THROUGH MONDAY. STORMS THAT DEVELOP WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAIN...GUSTY WINDS...AND FREQUENT LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD MONITOR THE WEATHER TODAY AND SELF ACTIVATE IF NEEDED. MCMICHAEL
In the hours before
Special weather statement, May 12, 2:39 PM EDT, 1 hour before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL 239 PM EDT TUE MAY 12 2009 FLZ049-121915- PASCO- 239 PM EDT TUE MAY 12 2009 ...STRONG THUNDERSTORMS WILL AFFECT WESTERN PASCO COUNTY... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A THUNDERSTORM... MOVING EAST AT 5 MPH...WILL AFFECT AREAS AROUND THE INTERSECTION OF THE SUNCOAST PARKWAY AND STATE ROAD 52...UNTIL 315 PM EDT. GUSTY WINDS UP TO 50 MPH MAY CAUSE LOOSE OBJECTS TO BLOW AROUND. SOME DAMAGE TO TREE LIMBS AND WIRES IS POSSIBLE. HAIL UP TO ONE HALF INCH IN DIAMETER IS EXPECTED. LAT...LON 2842 8239 2825 8241 2826 8263 2841 8263 TIME...MOT...LOC 1840Z 273DEG 6KT 2834 8251
Special weather statement, May 12, 2:44 PM EDT, 55 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, May 12, 3:28 PM EDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
328 PM EDT TUE MAY 12 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0312 PM HAIL 9 W HOMOSASSA 28.76N 82.76W
05/12/2009 E0.75 INCH GMZ850 FL PUBLIC
HAIL REPORTED NEAR U.S. 19 AND CARDINAL LANE. ALSO HAD
ESTIMATED 35 KNOT WINDS.
&&
RJSThe office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 8:58 PM EDT | Special Weather Statement | TBW | Polk | 32 min |
| May 12, 2:39 PM EDT | Special Weather Statement | TBW | Pasco | 36 min |
| May 12, 2:44 PM EDT | Special Weather Statement | TBW | Citrus | 46 min |
| May 12, 2:52 PM EDT | Severe Thunderstorm Warning | TBW | Citrus | 23 min |
| May 12, 3:09 PM EDT | Severe Thunderstorm Warning | TBW | Citrus, Hernando | 36 min |
| May 12, 3:11 PM EDT | Special Marine Warning | TBW | 34 min | |
| May 12, 3:52 PM EDT | Severe Thunderstorm Warning | TBW | Citrus, Sumter | 23 min |
| May 12, 4:02 PM EDT | Severe Thunderstorm Warning | TBW | Hernando, Pasco | 28 min |
| May 12, 4:15 PM EDT | Severe Thunderstorm Warning | TBW | Pasco | 30 min |
| May 12, 4:19 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 26 min |
| May 12, 4:29 PM EDT | Severe Thunderstorm Warning | TBW | Hernando, Pasco, Sumter | 16 min |
| May 12, 4:30 PM EDT | Areal Flood Advisory | TBW | Hernando, Pasco | 2 hr |
| May 12, 4:41 PM EDT | Severe Thunderstorm Warning | TBW | Polk, Sumter | 34 min |
| May 12, 4:42 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough, Polk | 48 min |
| May 12, 4:58 PM EDT | Special Weather Statement | TBW | Lee | 47 min |
| May 12, 5:20 PM EDT | Severe Thunderstorm Warning | TBW | Hardee, Manatee | 25 min |
| May 12, 5:28 PM EDT | Special Marine Warning | TBW | 47 min | |
| May 12, 5:28 PM EDT | Severe Thunderstorm Warning | TBW | Polk | 32 min |
| May 12, 5:30 PM EDT | Severe Thunderstorm Warning | TBW | Hillsborough | 30 min |
| May 12, 5:35 PM EDT | Areal Flood Advisory | TBW | Polk | 55 min |
| May 12, 5:37 PM EDT | Areal Flood Advisory | TBW | Hillsborough | 60 min |
| May 12, 5:51 PM EDT | Special Weather Statement | TBW | DeSoto, Hardee | 39 min |
| May 12, 5:54 PM EDT | Special Marine Warning | TBW | 51 min | |
| May 12, 6:27 PM EDT | Severe Thunderstorm Warning | TBW | DeSoto, Highlands | 33 min |
| May 12, 6:44 PM EDT | Special Marine Warning | TBW | 46 min | |
| May 12, 7:00 PM EDT | Severe Thunderstorm Warning | TBW | Highlands | 30 min |
| May 12, 7:29 PM EDT | Severe Thunderstorm Warning | TBW | Highlands | 31 min |
| May 12, 7:33 PM EDT | Special Marine Warning | TBW | 42 min | |
| May 12, 7:37 PM EDT | Areal Flood Advisory | TBW | Highlands | 113 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2009Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.