Alert archive / Florida / Red Flag Warnings in 2020
Red Flag Warning 2, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this red flag warning at Mar 7, 2020, 4:24 AM EST for 7 counties in Florida. It took effect at Mar 7, 2020, 12:00 PM EST. 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
- Mar 7, 2020, 4:24 AM EST (09:24 UTC)
- In effect from
- Mar 7, 2020, 12:00 PM EST
- Expired
- Mar 7, 2020, 6:00 PM EST
- In force
- 6 hr
- Issued by
- NWS Tampa Bay, FL
Counties Charlotte County, FL, Hillsborough County, FL, Lee County, FL, Manatee County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL
The radar
The Tampa radar (KTBW), 38 km from the middle of the area, began a volume at 09:22 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, 9.4 hours before the alert went out and 38 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
- 1470 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -135 m²/s²
- 0-3 km storm-relative helicity
- -67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
598 WWUS82 KTBW 070924 RFWTBW URGENT - FIRE WEATHER MESSAGE National Weather Service Tampa Bay Area - Ruskin FL 424 AM EST Sat Mar 7 2020 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITIES ALONG WITH DRY SOILS AND WINDS GREATER THAN 15 MPH... .Dry air in place across the area will allow for several hours of relative humidity values below 35 percent this afternoon. In addition, dry soil conditions and winds greater than 15 mph will cause dangerous fire weather conditions. FLZ050-151-155-160-162-165-072300- /O.NEW.KTBW.FW.W.0002.200307T1700Z-200307T2300Z/ Pinellas-Coastal Hillsborough-Coastal Manatee-Coastal Sarasota- Coastal Charlotte-Coastal Lee- 424 AM EST Sat Mar 7 2020 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITIES ALONG WITH DRY SOILS AND WINDS GREATER THAN 15 MPH... The National Weather Service in Tampa Bay Area - Ruskin FL has issued a Red Flag Warning, which is in effect from noon today to 6 PM EST this evening. * AFFECTED AREA...Pinellas...Coastal Hillsborough...Coastal Manatee...Coastal Sarasota...Coastal Charlotte...Coastal Lee. * WIND...Northeast winds around 15 mph with gusts to 25 mph. * HUMIDITY...29 to 34 percent. * ERC...30 to 40. * 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. && $$
1 follow-up statement
504 WWUS82 KTBW 071353 RFWTBW URGENT - FIRE WEATHER MESSAGE National Weather Service Tampa Bay Area - Ruskin FL 853 AM EST Sat Mar 7 2020 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITIES ALONG WITH DRY SOILS AND WINDS GREATER THAN 15 MPH... .Dry air in place across the area will allow for several hours of relative humidity values below 35 percent this afternoon. In addition, dry soil conditions and winds greater than 15 mph will cause dangerous fire weather conditions. FLZ052-072300- /O.EXA.KTBW.FW.W.0002.200307T1700Z-200307T2300Z/ Polk- 853 AM EST Sat Mar 7 2020 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITIES ALONG WITH DRY SOILS AND WINDS GREATER THAN 15 MPH... The National Weather Service in Tampa Bay Area - Ruskin FL has issued a Red Flag Warning, which is in effect from noon today to 6 PM EST this evening. * AFFECTED AREA...Polk. * WIND...Northeast winds around 15 mph with gusts to 25 mph. * HUMIDITY...29 to 34 percent. * ERC...30 to 40. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ FLZ050-151-155-160-162-165-072300- /O.CON.KTBW.FW.W.0002.200307T1700Z-200307T2300Z/ Pinellas-Coastal Hillsborough-Coastal Manatee-Coastal Sarasota- Coastal Charlotte-Coastal Lee- 853 AM EST Sat Mar 7 2020 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM EST THIS EVENING FOR LONG DURATIONS OF LOW HUMIDITIES ALONG WITH DRY SOILS AND WINDS GREATER THAN 15 MPH... * AFFECTED AREA...Pinellas...Coastal Hillsborough...Coastal Manatee...Coastal Sarasota...Coastal Charlotte...Coastal Lee. * WIND...Northeast winds around 15 mph with gusts to 25 mph. * HUMIDITY...29 to 34 percent. * ERC...30 to 40. * 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. && $$
What forecasters said that day
The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tampa Bay, FL wrote its last area forecast discussion before this red flag warning went out at Mar 7, 4:09 AM EST, 15 minutes earlier.
Area forecast discussion, Mar 7, 4:09 AM EST, 15 minutes before
Area Forecast Discussion
National Weather Service Tampa Bay Ruskin FL
409 AM EST Sat Mar 7 2020
.SHORT TERM (Today-Sunday)...
Cooler and drier air is in place across the area this morning,
with an interesting pocket of very low dew points around TPA/MCF
and even extending down across the office. Highs today only
reaching into the mid 60s to around 70, with several hours of
humidities below 35 percent this afternoon. Winds will be turning
from the north to the NE this afternoon as high pressure settles
east into the SE US. The high center continue to shift SE tonight
and Sunday turning winds more easterly and allowing for some
moderation of temps and moisture. Lows tonight are expected around
40 north and in the mid 40s to lower 50s central and south. Highs
Sunday in the lower to mid 70s.
.LONG TERM (Sunday night - Friday)...
Mid level ridging will build over the Gulf and Florida through the
upcoming week in response to a deep cutoff upper-level low
approaching and moving onshore the southern California coast by
mid week. At the surface strong high pressure (1036MB) initially
moving offshore the mid Atlantic coast Sunday night will move
eastward into the Atlantic and extend back to the west across the
northern Florida peninsula through the period with a return east-
southeast wind flow developing across the forecast area.
Dry/stable conditions under the ridge will keep rain chances out
of the forecast as the ridging keeps storm systems and fronts at
bay well to the north of the area, with a slow increase in low
level moisture and warming temperatures expected. Near normal
temperatures on Monday will climb to above normal Tuesday through
Friday with overnight lows warming into the 50s and 60s, with
daytime highs climbing into the upper 70s to around 80 on Monday,
then reaching the lower to mid 80s Tuesday through Friday.
&&
.AVIATION...
VFR conditions through the period with clear skies. Winds will be
from the N/NE increasing in the afternoon.
&&
.MARINE...
SCA continues for the coastal waters through this afternoon, then
should be subsiding. High pressure will remain in place across the
waters through the week, with the high center shifting east of the
area today.
&&
.FIRE WEATHER...
Several hours of critical RH values across the area this
afternoon, but winds should remain below 15 mph except right along
the coast. Most ERC values are in the 30s, so with that, will be
raising a red flag warning for the coastal counties from Pinellas
south through Lee.
&&
.Preliminary Point Temps/PoPs...
TPA 67 49 73 56 / 0 0 0 0
FMY 70 51 75 55 / 0 0 0 0
GIF 68 48 73 55 / 0 0 0 0
SRQ 70 47 76 55 / 0 0 0 0
BKV 66 41 74 49 / 0 0 0 0
SPG 68 54 72 60 / 0 0 0 0
&&
.TBW WATCHES/WARNINGS/ADVISORIES...
FL...High Rip Current Risk through this evening for Coastal Charlotte-
Coastal Hillsborough-Coastal Lee-Coastal Manatee-Coastal
Sarasota-Pinellas.
Red Flag Warning from noon today to 6 PM EST this evening for
Coastal Charlotte-Coastal Hillsborough-Coastal Lee-Coastal
Manatee-Coastal Sarasota-Pinellas.
Gulf waters...Small Craft Advisory until 3 PM EST this afternoon for Coastal
waters from Bonita Beach to Englewood FL out 20 NM-Coastal
waters from Englewood to Tarpon Springs FL out 20 NM-
Coastal waters from Tarpon Springs to Suwannee River FL out
20 NM-Waters from Bonita Beach to Englewood FL out 20 to 60
NM-Waters from Englewood to Tarpon Springs FL out 20 to 60
NM-Waters from Tarpon Springs to Suwannee River FL out 20
to 60 NM.
&&
SHORT TERM/AVIATION/MARINE/FIRE WEATHER...24/Hubbard
MID TERM/LONG TERM/DECISION SUPPORT...57/McMichaelNearby
Red Flag Warnings in Florida, 2020Every red flag warning in 2020
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.