Alert archive / Florida / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 36, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this severe thunderstorm warning at Aug 17, 2013, 3:08 AM EDT for Levy County, Florida. It was in force for 52 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
- Aug 17, 2013, 3:08 AM EDT (07:08 UTC)
- Expired
- Aug 17, 2013, 4:00 AM EDT
- In force
- 52 min
- Issued by
- NWS Tampa Bay, FL
- Area
- Storm-based polygon
County Levy County, FL
The radar
The Jacksonville radar (KJAX), 170 km from the middle of the area, began a volume at 07:10 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.1 hours before the alert went out and 192 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
- 127 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 562 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- -19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 16, 9:36 PM EDT, 5 hours 32 minutes earlier.
Area forecast discussion, Aug 16, 9:36 PM EDT, 5 hours 32 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 936 PM EDT FRI AUG 16 2013 .DISCUSSION... SOME SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE MAINLY ACROSS THE INTERIOR AND SOUTHERN ZONES. THIS ACTIVITY SHOULD DIMINISH AROUND MIDNIGHT...BUT STORMS WILL CONTINUE TO BE POSSIBLE ACROSS THE NORTH IN THE VICINITY OF THE STALLED BOUNDARY. HAVE LOWERED RAIN CHANCES ACROSS THE AREA FOR THE REST OF THIS EVENING AND WILL UPDATE FOR THIS. REST OF THE FORECAST IS ON TRACK WITH LOWS FALLING INTO THE LOWER 70S INLAND TO THE UPPER 70S COASTAL. && .AVIATION... THERE ARE STILL SOME LINGERING SHOWERS AND THUNDERSTORMS ACROSS INTERIOR AND SOUTHERN AREAS...CLOSE TO KLAL AND THE SOUTHERN SITES...SO HAVE LEFT VCTS IN FOR THOSE TERMINALS UNTIL MIDNIGHT. WINDS WILL BE LIGHT AND VARIABLE THROUGH SATURDAY MORNING. VCTS FOR ALL SITES STARTING AROUND 18Z. VFR EXPECTED OUTSIDE OF CONVECTION. && .MARINE... BUOYS SHOWING WINDS ALONG THE COAST GENERALLY FROM THE WEST AT 5 TO 10 KNOTS WITH WINDS OFFSHORE FROM THE S/SE AT 10 TO 15 KNOTS. SEAS OFFSHORE ARE 2-4 FEET. WILL MAKE A FEW MINOR ADJUSTMENTS FOR THE UPDATE...BUT THE FORECAST IS GENERALLY ON TRACK. && .TBW WATCHES/WARNINGS/ADVISORIES... FL...NONE. GULF WATERS...NONE. && SHORT TERM/MARINE/FIRE WEATHER...24/COLSON LONG TERM/AVIATION...05/CARLISLE
Hazardous weather outlook, Aug 16, 5:32 AM EDT, 21 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 532 AM EDT FRI AUG 16 2013 FLZ039-042-043-048>052-055>057-060>062-065-GMZ830-850-853-856-870- 873-876-162145- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DESOTO-CHARLOTTE-LEE- TAMPA BAY WATERS-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- 532 AM EDT FRI AUG 16 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... DEEP TROPICAL MOISTURE OVER THE REGION WITH WEAK DAYTIME HEATING WILL GENERATE SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS TODAY WITH THE HIGHEST AREAL COVERAGE OVER THE NATURE COAST AND INTERIOR PENINSULA. MAIN THREAT WILL BE LOCALLY HEAVY RAIN...FREQUENT CLOUD TO GROUND LIGHTNING...AND WIND GUSTS OF 35 TO 45 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. ...THUNDERSTORM IMPACT... SCATTERED THUNDERSTORMS SATURDAY...WITH AN INCREASING CHANCE OF AFTERNOON THUNDERSTORMS NEAR THE COAST SUNDAY AND MONDAY AS EASTERLY FLOW DEVELOPS AND THE WEST COAST SEA BREEZE BECOMES THE FOCUS FOR CONVECTION DURING THE MID TO LATE AFTERNOON. MAIN THREAT FROM STRONGER STORMS THROUGH SATURDAY WILL BE LOCALLY HEAVY RAIN AND WIND GUSTS OF 35 TO 45 MPH. SUNDAY THROUGH THURSDAY...A FEW STORMS MAY PRODUCE WIND GUSTS OF 40 TO 50 MPH WITH AN ISOLATED PULSE SEVERE THUNDERSTORM POSSIBLE EACH AFTERNOON. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. OGLESBY
In the hours before
Special weather statement, Aug 17, 12:41 AM EDT, 2 hours 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1241 AM EDT SAT AUG 17 2013
FLZ049-050-170530-
PASCO-PINELLAS-
1241 AM EDT SAT AUG 17 2013
...STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN PINELLAS AND
SOUTHWESTERN PASCO COUNTIES...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THUNDERSTORMS
LOCATED NEAR DUNEDIN...MOVING NORTH AT 15 MPH...WILL AFFECT HONEYMOON
ISLAND...OLDSMAR...CALADESI ISLAND AND SAFETY HARBOR...UNTIL 130 AM
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. TORRENTIAL RAINS WILL REDUCE
VISIBILITY TO NEAR ZERO AND WILL CAUSE PONDING OF WATER ON ROADWAYS.
&&
LAT...LON 2822 8284 2819 8281 2822 8278 2836 8273
2836 8264 2799 8268 2798 8284 2808 8285
2809 8282 2806 8279 2813 8279 2815 8282
2818 8282 2816 8285 2821 8286
TIME...MOT...LOC 0441Z 180DEG 13KT 2807 8278Local storm report, Aug 17, 1:14 AM EDT, 1 hour 54 minutes before
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</html>Local storm report, Aug 17, 2:12 AM EDT, 56 minutes before
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</html>The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 12:05 AM EDT | Special Marine Warning | TBW | 55 min | |
| Aug 17, 12:35 AM EDT | Special Weather Statement | TBW | Hillsborough | 40 min |
| Aug 17, 12:41 AM EDT | Special Weather Statement | TBW | Pasco | 49 min |
| Aug 17, 12:53 AM EDT | Special Marine Warning | TBW | 52 min | |
| Aug 17, 12:59 AM EDT | Areal Flood Advisory | TBW | Hillsborough, Pasco, Pinellas | 61 min |
| Aug 17, 1:44 AM EDT | Special Marine Warning | TBW | 61 min | |
| Aug 17, 2:40 AM EDT | Special Weather Statement | TBW | Levy | 50 min |
| Aug 17, 2:41 AM EDT | Special Marine Warning | TBW | 49 min | |
| Aug 17, 4:37 AM EDT | Special Marine Warning | TBW | 53 min | |
| Aug 17, 2:56 PM EDT | Special Weather Statement | TBW | Manatee | 49 min |
| Aug 17, 3:54 PM EDT | Special Marine Warning | TBW | 66 min | |
| Aug 17, 5:12 PM EDT | Special Weather Statement | TBW | Charlotte | 48 min |
| Aug 17, 5:15 PM EDT | Special Weather Statement | TBW | Pasco | 45 min |
| Aug 17, 5:47 PM EDT | Special Marine Warning | TBW | 58 min | |
| Aug 17, 5:57 PM EDT | Special Weather Statement | TBW | Hernando, Pasco | 48 min |
| Aug 17, 6:51 PM EDT | Areal Flood Advisory | TBW | Citrus, Hernando | 114 min |
| Aug 17, 6:55 PM EDT | Special Weather Statement | TBW | Citrus | 50 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2013Every severe thunderstorm warning in 2013
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.