Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 40, NWS Tampa Bay, FL

December 22, 2012Pinellas County, Florida

NWS Tampa Bay, FL issued this red flag warning at Dec 22, 2012, 3:23 AM EST for Pinellas County, Florida. It took effect at Dec 22, 2012, 10:00 AM EST. It was in force for 8 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 22, 2012, 3:23 AM EST (08:23 UTC)
In effect from
Dec 22, 2012, 10:00 AM EST
Expired
Dec 22, 2012, 6:00 PM EST
In force
8 hr
Issued by
NWS Tampa Bay, FL

County Pinellas County, FL

The radar

The Tampa radar (KTBW), 40 km from the middle of the area, began a volume at 08:29 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, 8.4 hours before the alert went out and 40 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, Tampa Bay, FL at 00:00Z on 2012-12-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2012-12-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -95 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1377 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-95 m²/s²
0-3 km storm-relative helicity
-153 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

031 
WWUS82 KTBW 220823
RFWTBW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
323 AM EST SAT DEC 22 2012

...VERY DRY AIR OVER WEST CENTRAL AND SOUTHWEST FLORIDA...

.RELATIVE HUMDITY VALUES WILL DROP BELOW 35 PERCENT FOR OVER FOUR
HOURS ACROSS ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA THIS
AFTERNOON. ERC VALUES OF 35 OR GREATER COMBINED WITH THE LOW
RELATIVE HUMIDITY WILL CREATE RED FLAG CONDITIONS ACROSS PINELLAS
AND LEE COUNTIES.

FLZ050-065-222030-
/O.NEW.KTBW.FW.W.0040.121222T1500Z-121222T2300Z/
PINELLAS-LEE-
323 AM EST SAT DEC 22 2012

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM EST
THIS EVENING FOR...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS
MORNING TO 6 PM EST THIS EVENING. 

* AFFECTED AREA...PINELLAS...LEE.

* WIND...NORTH AT 5 TO 10 MPH.

* HUMIDITY...20 TO 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN
24 HOURS.

&&

$$
3 follow-up statements
941 
WWUS82 KTBW 220826
RFWTBW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
326 AM EST SAT DEC 22 2012

...VERY DRY AIR OVER WEST CENTRAL AND SOUTHWEST FLORIDA...

.RELATIVE HUMDITY VALUES WILL DROP BELOW 35 PERCENT FOR OVER FOUR
HOURS ACROSS ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA THIS
AFTERNOON. ERC VALUES OF 35 OR GREATER COMBINED WITH THE LOW
RELATIVE HUMIDITY WILL CREATE RED FLAG CONDITIONS ACROSS PINELLAS
AND LEE COUNTIES.

FLZ050-065-222300-
/O.CON.KTBW.FW.W.0040.121222T1500Z-121222T2300Z/
PINELLAS-LEE-
326 AM EST SAT DEC 22 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
6 PM EST THIS EVENING FOR...

* AFFECTED AREA...PINELLAS...LEE.

* WIND...NORTH AT 5 TO 10 MPH.

* HUMIDITY...20 TO 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN
24 HOURS.

&&

$$
885 
WWUS82 KTBW 221855
RFWTBW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
155 PM EST SAT DEC 22 2012

...VERY DRY AIR OVER WEST CENTRAL AND SOUTHWEST FLORIDA...

.RELATIVE HUMIDITY VALUES WILL DROP BELOW 35 PERCENT FOR MORE THAN
FOUR HOURS ACROSS ALL OF WEST CENTRAL AND SOUTHWEST FLORIDA THIS
AFTERNOON AND LIKELY AGAIN ON SUNDAY. ERC VALUES OF 35 OR GREATER
COMBINED WITH THE LOW RELATIVE HUMIDITY WILL CREATE RED FLAG
CONDITIONS ACROSS PINELLAS AND LEE COUNTIES THIS AFTERNOON AND THE
POTENTIAL FOR RED FLAG CONDITIONS SUNDAY.

FLZ050-065-231100-
/O.NEW.KTBW.FW.A.0020.121223T1600Z-121223T2300Z/
/O.CON.KTBW.FW.W.0040.000000T0000Z-121222T2300Z/
PINELLAS-LEE-
155 PM EST SAT DEC 22 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING
FOR...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON FOR...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY AREA - RUSKIN FL HAS
ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM SUNDAY
MORNING THROUGH SUNDAY AFTERNOON. 

* AFFECTED AREA...PINELLAS...LEE.

* WIND...NORTH AROUND 10 MPH THIS AFTERNOON AND EASTERLY 5 TO 10
  MPH ON SUNDAY.

* HUMIDITY...20 TO 25 PERCENT THIS AFTERNOON AND 25 TO 30 PERCENT
  SUNDAY.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL OCCUR WITHIN
24 HOURS.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD.

&&

$$
939 
WWUS82 KTBW 222257
RFWTBW

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
557 PM EST SAT DEC 22 2012

...VERY DRY AIR OVER WEST CENTRAL AND SOUTHWEST FLORIDA...

.ENERGY RELEASE COMPONENT VALUES OF 35 OR GREATER COMBINED WITH
THE LOW RELATIVE HUMIDITY MAY RESULT IN RED FLAG CONDITIONS ON
SUNDAY.

FLZ050-065-231100-
/O.EXP.KTBW.FW.W.0040.000000T0000Z-121222T2300Z/
/O.CON.KTBW.FW.A.0020.121223T1600Z-121223T2300Z/
PINELLAS-LEE-
557 PM EST SAT DEC 22 2012

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH SUNDAY AFTERNOON FOR LOW RELATIVE HUMIDITIES AND A HIGH
ENERGY RELEASE COMPONENT... 
...RED FLAG WARNING WILL EXPIRE AT 6 PM EST THIS EVENING FOR LOW
RELATIVE HUMIDITIES AND A HIGH ENERGY RELEASE COMPONENT...

* AFFECTED AREA...PINELLAS...LEE.

* WIND...EASTERLY AT 5 TO 10 MPH.

* HUMIDITY...25 TO 30 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 22, 1:55 PM ESTFire Weather WatchTBWPinellas8 hr
Dec 22, 2:52 PM ESTFrost AdvisoryTBWPolk18 hr
Dec 22, 2:52 PM ESTFreeze WarningTBWDeSoto, Hardee, Highlands, Sumter18 hr
Dec 22, 2:52 PM ESTHard Freeze WarningTBW18 hr

Nearby

Red Flag Warnings in Florida, 2012Every red flag warning in 2012

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.