Alert archive / Florida / Red Flag Warnings in 2021
Red Flag Warning 1, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at May 20, 2021, 3:05 PM EDT for 13 counties in Florida. It took effect at May 21, 2021, 8:00 AM EDT. It was in force for 12 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 20, 2021, 3:05 PM EDT (19:05 UTC)
- In effect from
- May 21, 2021, 8:00 AM EDT
- Expired
- May 21, 2021, 8:00 PM EDT
- In force
- 12 hr
- Issued by
- NWS Tampa Bay, FL
Counties Charlotte County, FL, Citrus County, FL, DeSoto County, FL, Hardee County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Lee County, FL, Manatee County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL
The radar
The Tampa radar (KTBW), 27 km from the middle of the area, began a volume at 19:10 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 12:00Z, 7.1 hours before the alert went out and 27 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 830 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
154 WWUS82 KTBW 201905 RFWTBW URGENT - FIRE WEATHER MESSAGE National Weather Service Tampa Bay Area - Ruskin FL 305 PM EDT Thu May 20 2021 ...Critical relative humidity, elevated easterly winds, and high ERC values will result in an elevated fire danger Friday... .Gusty easterly winds expected tomorrow. Meanwhile, dry conditions across the area coupled with low afternoon humidity will combine to create an increased fire danger. FLZ061-151-242-248-249-251-255-260-262-265-220000- /O.NEW.KTBW.FW.W.0001.210521T1200Z-210522T0000Z/ DeSoto-Coastal Hillsborough-Inland Citrus-Inland Hernando- Inland Pasco-Inland Hillsborough-Inland Manatee-Inland Sarasota- Inland Charlotte-Inland Lee- 305 PM EDT Thu May 20 2021 ...RED FLAG WARNING IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY FOR... GUSTY WINDS...LOW HUMIDITY 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 8 AM to 8 PM EDT Friday. * AFFECTED AREA...DeSoto...Coastal Hillsborough...Inland Citrus...Inland Hernando...Inland Pasco...Inland Hillsborough...Inland Manatee...Inland Sarasota...Inland Charlotte...Inland Lee. * WIND...East winds sustained around 15 mph with gusts to 20 mph. * HUMIDITY...Around 35 percent. * ERC...33-39. * 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. && $$
2 follow-up statements
205 WWUS82 KTBW 202245 RFWTBW URGENT - FIRE WEATHER MESSAGE National Weather Service Tampa Bay Area - Ruskin FL 645 PM EDT Thu May 20 2021 ...Critical relative humidity, elevated easterly winds, and high ERC values will result in an elevated fire danger Friday... .Gusty easterly winds expected tomorrow. Meanwhile, dry conditions across the area coupled with low afternoon humidity will combine to create an increased fire danger. FLZ052-056-057-212345- /O.EXA.KTBW.FW.W.0001.210521T1200Z-210522T0000Z/ Polk-Hardee-Highlands- 645 PM EDT Thu May 20 2021 ...RED FLAG WARNING IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY FOR... GUSTY WINDS...LOW HUMIDITY AND HIGH ERC VALUES. ... The National Weather Service in Tampa Bay Area - Ruskin FL has issued a Red Flag Warning, which is in effect from 8 AM to 8 PM EDT Friday. * AFFECTED AREA...Polk...Hardee...Highlands. * WIND...East winds sustained around 15 mph with gusts to 20 mph. * HUMIDITY...Around 35 percent. * ERC...33-39. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ FLZ061-151-242-248-249-251-255-260-262-265-212345- /O.CON.KTBW.FW.W.0001.210521T1200Z-210522T0000Z/ DeSoto-Coastal Hillsborough-Inland Citrus-Inland Hernando- Inland Pasco-Inland Hillsborough-Inland Manatee-Inland Sarasota- Inland Charlotte-Inland Lee- 645 PM EDT Thu May 20 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM TO 8 PM EDT FRIDAY FOR...GUSTY WINDS...LOW HUMIDITY AND HIGH ERC VALUES. ... * AFFECTED AREA...DeSoto...Coastal Hillsborough...Inland Citrus...Inland Hernando...Inland Pasco...Inland Hillsborough...Inland Manatee...Inland Sarasota...Inland Charlotte...Inland Lee. * WIND...East winds sustained around 15 mph with gusts to 20 mph. * HUMIDITY...Around 35 percent. * ERC...33-39. * 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. && $$
827 WWUS82 KTBW 211519 RFWTBW URGENT - FIRE WEATHER MESSAGE National Weather Service Tampa Bay Area - Ruskin FL 1119 AM EDT Fri May 21 2021 ...Critical relative humidity, elevated easterly winds, and high ERC values will result in an elevated fire danger today... .Gusty easterly winds combined with dry conditions and low humidity values will create an increased fire danger. FLZ050-148-149-155-160-162-165-220000- /O.EXA.KTBW.FW.W.0001.000000T0000Z-210522T0000Z/ Pinellas-Coastal Hernando-Coastal Pasco-Coastal Manatee- Coastal Sarasota-Coastal Charlotte-Coastal Lee- 1119 AM EDT Fri May 21 2021 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR... GUSTY WINDS LOW HUMIDITY AND HIGH ERC VALUES... The National Weather Service in Tampa Bay Area - Ruskin FL has issued a Red Flag Warning, which is in effect until 8 PM EDT this evening. * AFFECTED AREA...Pinellas...Coastal Hernando...Coastal Pasco... Coastal Manatee...Coastal Sarasota...Coastal Charlotte... Coastal Lee. * WIND...East winds sustained in the 15 to 20 mph range with gusts to 25 to 30 mph. * HUMIDITY...Around 35 percent. * ERC...33-39. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ FLZ052-056-057-061-151-242-248-249-251-255-260-262-265-220000- /O.CON.KTBW.FW.W.0001.000000T0000Z-210522T0000Z/ Polk-Hardee-Highlands-DeSoto-Coastal Hillsborough-Inland Citrus- Inland Hernando-Inland Pasco-Inland Hillsborough-Inland Manatee- Inland Sarasota-Inland Charlotte-Inland Lee- 1119 AM EDT Fri May 21 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR GUSTY WINDS LOW HUMIDITY 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 8 AM to 8 PM EDT Friday. * AFFECTED AREA...Polk...Hardee...Highlands...DeSoto...Coastal Hillsborough...Inland Citrus...Inland Hernando...Inland Pasco...Inland Hillsborough...Inland Manatee...Inland Sarasota...Inland Charlotte...Inland Lee. * WIND...East winds sustained 15 to 20 mph with gusts to 25 to 30 mph. * HUMIDITY...Less than 35 percent. * ERC...33-39. * 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, 2021Every red flag warning in 2021
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.