Alert archive / Florida / Red Flag Warnings in 2017

Red Flag Warning 13, NWS Tampa Bay, FL

May 6, 20174 counties in Florida

NWS Tampa Bay, FL issued this red flag warning at May 6, 2017, 3:54 AM EDT for 4 counties in Florida. It took effect at May 6, 2017, 1:00 PM EDT. 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
May 6, 2017, 3:54 AM EDT (07:54 UTC)
In effect from
May 6, 2017, 1:00 PM EDT
Expired
May 6, 2017, 7:00 PM EDT
In force
6 hr
Issued by
NWS Tampa Bay, FL

Counties Citrus County, FL, Levy County, FL, Polk County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 111 km from the middle of the area, began a volume at 07:55 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, 7.9 hours before the alert went out and 111 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 2017-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 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 2017-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897117Sfc1 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
3 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1614 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

695 
WWUS82 KTBW 060754
RFWTBW

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tampa Bay Area - Ruskin FL
354 AM EDT Sat May 6 2017

...RED FLAG WARNING HAS BEEN ISSUED FOR HIGH WINDS AND LOW 
HUMIDITY VALUES THIS AFTERNOON...

.Dry air and breezy winds behind the front that moved through
Thursday night will increase the fire weather risk Saturday
afternoon. Red Flag Warnings may be needed.

FLZ043-052-239-062000-
/O.UPG.KTBW.FW.A.0001.170506T1700Z-170506T2300Z/
/O.NEW.KTBW.FW.W.0013.170506T1700Z-170506T2300Z/
Sumter-Polk-Inland Levy-
354 AM EDT Sat May 6 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITY...WINDS AND
HIGH ERC VALUES... 

The National Weather Service in Tampa Bay Area - Ruskin FL has
issued a Red Flag Warning, which is in effect from 1 PM this
afternoon to 7 PM EDT this evening. The Fire Weather Watch is no
longer in effect. 


* AFFECTED AREA...Sumter...Polk...Inland Levy.

* WIND...West to Northwest around 15 MPH

* HUMIDITY...27 to 35 percent

* ERC...36 to 42.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

FLZ242-062000-
/O.NEW.KTBW.FW.W.0013.170506T1700Z-170506T2300Z/
Inland Citrus-
354 AM EDT Sat May 6 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITY...WINDS AND
HIGH ERC VALUES... 

The National Weather Service in Tampa Bay Area - Ruskin FL has 
issued a Red Flag Warning, which is in effect from 1 PM this 
afternoon to 7 PM EDT this evening. 

* AFFECTED AREA...Inland Citrus.

* WIND...West to Northwest around 15 mph

* HUMIDITY...30 to 35 percent 

* ERC...36

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

Nearby

Red Flag Warnings in Florida, 2017Every red flag warning in 2017

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.