Alert archive / Florida / Red Flag Warnings in 2021
Red Flag Warning 2, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at May 22, 2021, 3:39 AM EDT for 15 counties in Florida. It took effect at May 22, 2021, 11:00 AM EDT. It was in force for 9 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 22, 2021, 3:39 AM EDT (07:39 UTC)
- In effect from
- May 22, 2021, 11:00 AM EDT
- Expired
- May 22, 2021, 8:00 PM EDT
- In force
- 9 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, Levy County, FL, Manatee County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 27 km from the middle of the area, began a volume at 07:44 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, 7.7 hours before the alert went out and 28 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
- 1750 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
997 WWUS82 KTBW 220739 RFWTBW URGENT - FIRE WEATHER MESSAGE National Weather Service Tampa Bay Area - Ruskin FL 339 AM EDT Sat May 22 2021 ...Critical relative humidity, breezy easterly winds, and high ERC values will result in elevated fire danger today... .Gusty easterly winds combined with dry conditions and low relative humidity values will lead to increased fire danger. FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165- 239-242-248-249-251-255-260-262-265-230000- /O.NEW.KTBW.FW.W.0002.210522T1500Z-210523T0000Z/ Sumter-Pinellas-Polk-Hardee-Highlands-DeSoto-Coastal Levy- Coastal Citrus-Coastal Hernando-Coastal Pasco- Coastal Hillsborough-Coastal Manatee-Coastal Sarasota- Coastal Charlotte-Coastal Lee-Inland Levy-Inland Citrus- Inland Hernando-Inland Pasco-Inland Hillsborough-Inland Manatee- Inland Sarasota-Inland Charlotte-Inland Lee- 339 AM EDT Sat May 22 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 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 11 AM this morning to 8 PM EDT this evening. * AFFECTED AREA...Sumter...Pinellas...Polk...Hardee... Highlands...DeSoto...Coastal Levy...Coastal Citrus...Coastal Hernando...Coastal Pasco...Coastal Hillsborough...Coastal Manatee...Coastal Sarasota...Coastal Charlotte...Coastal Lee... Inland Levy...Inland Citrus...Inland Hernando...Inland Pasco... Inland Hillsborough...Inland Manatee...Inland Sarasota... Inland Charlotte...Inland Lee. * WIND...East winds in the 15 to 20 mph range. * HUMIDITY...Around 35 percent. * ERC...34 to 46. * 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.