Alert archive / Florida / Red Flag Warnings in 2009

Red Flag Warning 1, NWS Tampa Bay, FL

January 8, 20095 counties in Florida

NWS Tampa Bay, FL issued this red flag warning at Jan 8, 2009, 2:24 AM EST for 5 counties in Florida. It took effect at Jan 8, 2009, 12:00 PM EST. It was in force for 6 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: Jan 8, 2009, 2:24 AM EST (07:24 UTC)
In effect from: Jan 8, 2009, 12:00 PM EST
Expired: Jan 8, 2009, 6:00 PM EST
In force: 6 hr
Issued by: NWS Tampa Bay, FL

Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Polk County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 64 km from the middle of the area, began a volume at 07:28 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

Miami, FL (KMFL), launched 00:00Z, 7.4 hours before the alert went out and 257 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 967 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: -83 m²/s²
0-3 km storm-relative helicity: -72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

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 Jan 7, 9:32 PM EST, 4 hours 52 minutes earlier.

Area forecast discussion, Jan 7, 9:32 PM EST, 4 hours 52 minutes before

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Hazardous weather outlook, Jan 7, 4:31 AM EST, 21 hours 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
431 AM EST WED JAN 7 2009

FLZ039-042-043-048>052-055>057-060>062-065-072145-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE-
431 AM EST WED JAN 7 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST
FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
A PRE FRONTAL TROUGH AND COLD FRONT ARE EXPECTED TO PASS OVER THE
THE NATURE COAST THIS MORNING...THE TAMPA BAY AREA AROUND MID DAY
AND SOUTHWEST FLORIDA THIS AFTERNOON PRODUCING A GOOD CHANCE OF
SHOWERS WITH A CHANCE FOR THUNDERSTORMS. SOME STORMS MAY PRODUCE
STRONG GUSTY WINDS...BRIEF HEAVY RAINFALL AND DEADLY LIGHTNING.

...WIND AND SEA IMPACT...
WINDS AND SEAS WILL CONTINUE TO INCREASE IN ADVANCE OF THE COLD FRONT
MOVING THROUGH THE EASTERN GULF TODAY. STRONG HIGH PRESSURE WILL
BUILD OVER THE REGION BEHIND THE FRONT THROUGH THIS EVENING PRODUCING
ELEVATED WINDS AND SEAS MAKING FOR HAZARDOUS BOATING CONDITIONS.
FISHERMEN AND OTHER SMALL CRAFT OPERATORS MAY WANT TO POSTPONE TRIPS
UNTIL CONDITIONS IMPROVE.

ALSO WINDS OVER AREA LAKES ARE EXPECT TO GUSTY TODAY SO CAUTION
IS ADVISED ON LARGE LAKES TODAY AS WELL. OUTDOOR ENTHUSIASTS MAY
WISH TO POSTPONE LAKE RELATED ACTIVITIES UNTIL CONDITIONS IMPROVE.

...RIP CURRENT IMPACT...SOUTHWEST FLOW WILL CONTINUE TO INCREASE TODAY
AHEAD OF THE FRONT THEN BECOME WEST TO NORTHWESTERLY AND REMAIN GUSTY
LATER TODAY INTO THIS EVENING. THESE WINDS WILL PRODUCE CHOPPY BREAKING
WAVES ALONG AREA BEACHES TODAY INCREASING THE THREAT FOR DANGEROUS RIP
CURRENTS TODAY INTO THURSDAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

...FIRE WEATHER IMPACT...
A DRY AND COOL AIRMASS WILL FILTER INTO THE REGION THURSDAY AND
REMAIN OVER THE AREA FRIDAY PRODUCING CRITICALLY LOW HUMIDITIES WITH
MARGINAL 2 TO POSSIBLY 4 HOUR DURATIONS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD MONITOR THE WEATHER AND SELF ACTIVATE IF NEEDED.

RD

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 8, 2:24 AM EST	Fire Weather Watch	TBW	DeSoto, Hardee, Highlands, Polk, Sumter	27 hr

Nearby

Red Flag Warnings in Florida, 2009 Every red flag 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.