Alert archive / Florida / Red Flag Warnings in 2018
Red Flag Warning 2, NWS Miami, FL
NWS Miami, FL issued this red flag warning at Mar 21, 2018, 3:42 AM EDT for Broward County, Miami-Dade County, Palm Beach County, Florida. It took effect at Mar 21, 2018, 2:00 PM EDT. It was in force for 5 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 21, 2018, 3:42 AM EDT (07:42 UTC)
- In effect from
- Mar 21, 2018, 2:00 PM EDT
- Expired
- Mar 21, 2018, 7:00 PM EDT
- In force
- 5 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 7.7 hours before the alert went out and 39 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
- 625 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1124 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted.
068 WWUS82 KMFL 210742 RFWMFL Urgent - Fire Weather Message National Weather Service Miami FL 342 AM EDT Wed Mar 21 2018 FLZ063-066>068-070>074-212300- /O.NEW.KMFL.FW.W.0002.180321T1800Z-180321T2300Z/ Glades-Hendry-Inland Palm Beach-Metro Palm Beach-Inland Collier- Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade- 342 AM EDT Wed Mar 21 2018 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 7 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND 20 FOOT WINDS FOR FIRE WEATHER ZONES 063...066...067...068...070...071...072...073 AND 074... The National Weather Service in Miami has issued a Red Flag Warning...which is in effect from 2 PM this afternoon to 7 PM EDT this evening. * Affected area...fire weather zones 063...066...067...068... 070...071...072...073 and 074. * Wind...20 foot wind around 15 mph with gusts up to 25 mph. * Humidity...Lowest RH values around 30 to 35 percent for several hours this afternoon. * Impacts...Any fires that develop will likely see extreme fire behavior. 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. && $$
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 8:12 PM EDT | Special Weather Statement | MFL | Collier | 33 min |
| Mar 20, 8:22 PM EDT | Severe Thunderstorm Warning | MFL | Collier | 23 min |
| Mar 20, 8:48 PM EDT | Special Weather Statement | MFL | Collier | 57 min |
| Mar 20, 9:48 PM EDT | Special Weather Statement | MFL | Monroe | 57 min |
| Mar 21, 3:37 AM EDT | Rip Current Statement | MFL | Collier | 17 hr |
Nearby
Red Flag Warnings in Florida, 2018Every red flag warning in 2018
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.