Alert archive / Florida / Red Flag Warnings in 2013
Red Flag Warning 18, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at Mar 25, 2013, 5:52 AM EDT for 6 counties in Florida. It took effect at Mar 25, 2013, 12:00 PM EDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 25, 2013, 5:52 AM EDT (09:52 UTC)
- In effect from
- Mar 25, 2013, 12:00 PM EDT
- Expired
- Mar 25, 2013, 9:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Tampa Bay, FL
Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Pinellas County, FL, Polk County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 49 km from the middle of the area, began a volume at 09:54 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 00:00Z, 9.9 hours before the alert went out and 49 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
- 2028 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 487 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.5
What forecasters said that day
The local office's own words before this red flag 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 red flag warning went out at Mar 25, 5:06 AM EDT, 46 minutes earlier.
Area forecast discussion, Mar 25, 5:06 AM EDT, 46 minutes before
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</html>Hazardous weather outlook, Mar 24, 6:11 AM EDT, 23 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 611 AM EDT SUN MAR 24 2013 FLZ039-042-043-048>052-055>057-060>062-065-GMZ830-850-853-856-870- 873-876-242200- 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- 611 AM EDT SUN MAR 24 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...THUNDERSTORM IMPACT... A COLD FRONT WILL APPROACH AND MOVE ACROSS THE REGION BRINGING SHOWERS AND THUNDERSTORMS INTO WEST CENTRAL AND SOUTHWEST FLORIDA TODAY INTO EARLY TONIGHT. SOME OF THE STORMS COULD BECOME STRONG TO SEVERE...MAINLY NORTH OF THE TAMPA BAY AREA. POTENTIAL HAZARDS INCLUDE DAMAGING STRAIGHT LINE WINDS...LARGE HAIL... ISOLATED TORNADOES AND WATERSPOUTS...AND FREQUENT CLOUD TO GROUND LIGHTNING. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE WHICH COULD CAUSE MINOR FLOODING OF LOW LYING AND POOR DRAINAGE AREAS. ...WIND AND SEA IMPACT... A BREEZY SOUTHERLY FLOW AT 15 TO 20 KNOTS WILL BECOME ESTABLISHED AHEAD OF THE COLD FRONT TODAY THEN SHIFT TO NORTHWEST AND INCREASE TO AROUND 20 KNOTS BEHIND THE FRONT LATE TONIGHT. THIS WILL PRODUCE HAZARDOUS CONDITIONS FOR SMALL CRAFT AND THUS SMALL CRAFT SHOULD EXERCISE CAUTION TODAY WITH SMALL CRAFT ADVISORIES LIKELY BEING NEEDED LATE TONIGHT. ...LAKE WIND IMPACT... A BREEZY SOUTH TO SOUTHWEST FLOW WITH WINDS BETWEEN 20 AND 25 MPH WITH SOME HIGHER GUSTS WILL SETUP TODAY. WINDS OF THESE MAGNITUDES WILL CREATE ROUGH CONDITIONS ON LARGER AREA LAKES WHICH COULD PRODUCE DAMAGE TO...OR FLIP...SMALL PLEASURE CRAFT AND THUS A LAKE WIND ADVISORY IS IN EFFECT. ...RIP CURRENT IMPACT... THE BREEZY WINDS WILL LEAD TO A MODERATE RISK OF RIP CURRENTS AT AREA BEACHES TODAY. BEACH GOERS SHOULD USE CAUTION WHEN IN OR NEAR THE WATER. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. ...WIND AND SEA IMPACT... BREEZY NORTHERLY WINDS BEHIND THE COLD FRONT WILL CONTINUE INTO TUESDAY AND SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED DURING THIS TIME. ...EXCESSIVE COLD IMPACT... MUCH COOLER DRIER AIR WILL MOVE INTO THE REGION EARLY THIS WEEK WITH OVERNIGHT LOW TEMPERATURES EXPECTED TO FALL INTO THE 30S ACROSS PORTIONS OF THE NATURE COAST MONDAY NIGHT...TUESDAY NIGHT AND WEDNESDAY NIGHT. DURING MONDAY NIGHT WINDS WILL REMAIN BETWEEN 5 AND 10 MPH AND THIS SHOULD LIMIT THE THREAT OF FROST AND FREEZING TEMPERATURES. HOWEVER...DURING TUESDAY NIGHT AND WEDNESDAY NIGHT WINDS SHOULD DIMINISH AND THERE WILL BE A CHANCE OF SOME FROST AND FREEZING TEMPERATURES DURING THESE NIGHTS FROM ABOUT HERNANDO AND SUMTER COUNTIES NORTHWARD. ...FIRE WEATHER IMPACT... LONG DURATIONS OF CRITICAL RELATIVE HUMIDITY WILL BE POSSIBLE MONDAY THROUGH THURSDAY WHICH COULD PRODUCE RED FLAG CONDITIONS OVER PORTIONS OF WEST CENTRAL AND SOUTHWEST FLORIDA. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED. PRC
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 8:21 PM EDT | Beach Hazards Statement | TBW | Pinellas | 24 hr |
| Mar 24, 8:41 PM EDT | Fire Weather Watch | TBW | DeSoto, Hardee, Highlands, Polk | 9 hr |
| Mar 25, 4:45 AM EDT | Lake Wind Advisory | TBW | DeSoto, Hardee, Highlands, Pinellas, Polk, Sumter | 15 hr |
| Mar 25, 6:08 AM EDT | High Surf Advisory | TBW | Pinellas | 14 hr |
| Mar 25, 4:06 PM EDT | Freeze Watch | TBW | 24 hr |
Nearby
Red Flag Warnings in Florida, 2013Every red flag 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.