Alert archive / Florida / Red Flag Warnings in 2010

Red Flag Warning 90, NWS Tampa Bay, FL

December 27, 20106 counties in Florida

NWS Tampa Bay, FL issued this red flag warning at Dec 27, 2010, 5:15 AM EST for 6 counties in Florida. It took effect at Dec 28, 2010, 11:00 AM EST. It was in force for 7 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
Dec 27, 2010, 5:15 AM EST (10:15 UTC)
In effect from
Dec 28, 2010, 11:00 AM EST
Expired
Dec 28, 2010, 6:00 PM EST
In force
7 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 10:19 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 10.3 hours before the alert went out and 159 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-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 2010-12-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 2010-12-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
989 m above ground
0-6 km bulk shear
103 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 27, 1:13 AM ESTSmall Craft AdvisoryTBW3 hr
Dec 27, 4:59 AM ESTFreeze WatchTBWPinellas8 hr
Dec 27, 1:02 PM ESTFreeze WatchTBWDeSoto, Hardee, Highlands, Polk16 hr
Dec 27, 1:02 PM ESTFreeze WarningTBWPinellas20 hr
Dec 27, 1:02 PM ESTHard Freeze WatchTBWSumter16 hr
Dec 27, 1:02 PM ESTHard Freeze WarningTBWDeSoto, Hardee, Highlands, Polk, Sumter20 hr
Dec 27, 1:50 PM ESTFire Weather WatchTBWDeSoto, Hardee, Highlands, Polk, Sumter23 hr

Nearby

Red Flag Warnings in Florida, 2010Every red flag warning in 2010

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.