Alert archive / Florida / Red Flag Warnings in 2021
Red Flag Warning 4, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at Apr 10, 2021, 4:08 AM EDT for 6 counties in Florida. It took effect at Apr 10, 2021, 12:00 PM EDT. It was in force for 7 hr. 21 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 10, 2021, 4:08 AM EDT (08:08 UTC)
- In effect from
- Apr 10, 2021, 12:00 PM EDT
- Expired
- Apr 10, 2021, 7:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Melbourne, FL
Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 08:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 10, 5:24 PM EDT | TSTM WND GST 0 | Leesburg Airport, FL | ASOS AT LEESBURG INTERNATIONAL AIRPORT KLEE MEASURED A PEAK WIND GUST OF 38KT OR 44MPH FROM THE WEST. |
| Apr 10, 5:24 PM EDT | TSTM WND GST 44 | Leesburg Airport, FL | ASOS AT LEESBURG INTERNATIONAL AIRPORT KLEE MEASURED A PEAK WIND GUST OF 38KT OR 44MPH FROM THE WEST. |
| Apr 10, 5:30 PM EDT | TSTM WND GST 43 | 3 Wsw Oakland, FL | PEAK WIND GUST OF 43 MPH AT A WEATHEFLOW SITE SOUTH OF LAKE APOPKA, ON SHADY HOLLOW LOOP. |
| Apr 10, 5:30 PM EDT | TSTM WND GST 43 | 4 Wnw Eustis, FL | WEATHERFLOW STATION IN EUSTIS ON SANDY LANE MEASURED A PEAK WIND GUST OF 43 MPH. |
| Apr 10, 5:30 PM EDT | TSTM WND GST 45 | Leesburg Airport, FL | UPDATE TO PEAK GUST AT LEESBURG AIRPORT. PEAK GUST OF 39KT OR 45MPH FROM THE WEST. |
| Apr 10, 5:45 PM EDT | TSTM WND GST 42 | 5 S Okahumpka, FL | FAWN STATION IN OKAHUMPKA MEASURED A PEAK WIND GUST OF 42 MPH FROM THE SOUTHWEST. |
| Apr 10, 5:47 PM EDT | TSTM WND GST 48 | 5 Nw Bay Lake, FL | WEATHERFLOW SITE AT REEDY LAKE MEASURED A PEAK WIND GUST OF 48 MPH FROM THE WEST. |
| Apr 10, 5:48 PM EDT | TSTM WND GST 53 | Orlando International A, FL | ASOS AT ORLANDO INTERNATIONAL AIRPORT MEASURED A PEAK WIND GUST OF 46KT OR 53MPH FROM THE WEST. |
| Apr 10, 5:52 PM EDT | TSTM WND GST 53 | 5 Nw Bay Lake, FL | UPDATED, REEDY LAKE WEATHERFLOW PEAK GUST UP TO 53 MPH FROM THE WEST. |
| Apr 10, 6:05 PM EDT | TSTM WND GST 55 | Ocoee, FL | EM REPORTS ESTIMATED WIND GUSTS UP TO 50-55 MPH IN OCOEE. SMALL TREE BRANCHES HAVE BEEN DOWNED AND THERE IS DAMAGE TO POOL SCREEN ENCLOSURES. |
| Apr 10, 6:07 PM EDT | TSTM WND GST 44 | 1 Wsw Altamonte Springs, FL | SPRING LAKE WEATHERFLOW MESONET MEASURED A PEAK WIND GUST OF 44 MPH FROM THE SOUTHWEST. |
| Apr 10, 6:10 PM EDT | TSTM WND GST 43 | 3 Se Altamonte Springs, FL | WEATHERSTEM STATION AT MAITLAND FR 45 MEASURED A PEAK WIND GUST OF 43 MPH. |
| Apr 10, 6:13 PM EDT | TSTM WND GST 47 | Kissimmee Airport, FL | AWOS AT KISSIMMEE GATEWAY MEASURED A PEAK WIND GUST OF 47MPH OR 41 KNOTS FROM THE NORTHWEST. |
| Apr 10, 6:15 PM EDT | TSTM WND GST 47 | Orlando International A, FL | PEAK WIND GUST OF 41KT OR 47MPH AT THE ORLANDO INTERNATIONAL AIRPORT FROM THE NW. |
| Apr 10, 6:22 PM EDT | TSTM WND GST 50 | Sanford Airport, FL | PEAK WIND GUST OF 43KT OR 50MPH AT SANFORD INTERNATIONAL AIRPORT FROM THE WEST-NORTHWEST. |
| Apr 10, 6:25 PM EDT | TSTM WND DMG | 2 S Lake Jessup, FL | BROADCAST MEDIA REPORTS WIND DAMAGE IN BARRINGTON ESTATES IN WINTER SPRINGS. SEVERAL TREE LIMBS DOWNED, FENCES AND OTHER BACKYARD ITEMS KNOCKED DOWN. TIME ESTIMATED FROM RADAR. |
| Apr 10, 6:27 PM EDT | TSTM WND GST 47 | Daytona Beach Airport, FL | PEAK WIND GUST OF 41KT OR 47MPH AT THE DAYTONA BEACH INTERNATIONAL AIRPORT FROM THE WEST-NORTHWEST. |
| Apr 10, 6:30 PM EDT | TSTM WND GST 40 | 1 W Geneva, FL | WEATHERFLOW SITE IN GENEVA ON COPELAND COURT MEASURED A PEAK WIND GUST OF 40MPH. |
| Apr 10, 6:35 PM EDT | TSTM WND DMG | 5 S Daytona Beach, FL | PUBLIC REPORTS LARGE TREE DOWNED IN PORT ORANGE, NEAR CLYDE MORRIS BLVD AND COLONY ROAD. TIME ESTIMATED FROM RADAR. |
| Apr 10, 6:45 PM EDT | TSTM WND GST 46 | 6 Sse West Lake Toho, FL | SFWMD STATION SOUTH OF LAKE TOHO MEASURED A PEAK WIND GUST OF 46 MPH. |
| Apr 10, 6:47 PM EDT | TSTM WND GST 48 | New Smyrna Beach Airpor, FL | AWOS AT NEW SMYRNA BEACH REGIONAL AIRPORT MEASURED A PEAK WIND GUST OF 42KT OR 48MPH FROM THE WNW. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 00:00Z, 8.1 hours before the alert went out and 73 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
- 27 J/kg
- Mixed-layer CIN
- -222 J/kg
- Mixed-layer LCL
- 1105 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
389 WWUS82 KMLB 100808 RFWMLB URGENT - FIRE WEATHER MESSAGE National Weather Service Melbourne FL 408 AM EDT Sat Apr 10 2021 ...DANGEROUS FIRE WEATHER CONDITIONS ARE EXPECTED THIS AFTERNOON... FLZ041-044>046-053-058-144-102300- /O.UPG.KMLB.FW.A.0004.210410T1600Z-210410T2300Z/ /O.NEW.KMLB.FW.W.0004.210410T1600Z-210410T2300Z/ Inland Volusia-Northern Lake-Orange-Seminole-Osceola-Okeechobee- Southern Lake- 408 AM EDT Sat Apr 10 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING FOR LOW RELATIVE HUMIDITY, BREEZY SOUTH TO SOUTHWEST WINDS, HIGH DISPERSION, AND DRY GROUND CONDITIONS ACROSS INTERIOR EAST CENTRAL FLORIDA... The National Weather Service in Melbourne has issued a Red Flag Warning, which is in effect from noon today to 7 PM EDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA... Inland Volusia... Northern Lake... Orange... Seminole... Osceola... Okeechobee... Southern Lake. * WIND...South to southwest winds around 15 mph gusting to 20 to 25 mph. * HUMIDITY...33 to 37 percent. * 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. && $$
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 2:49 AM EDT | Small Craft Advisory | MLB | 25 hr | |
| Apr 10, 3:29 AM EDT | Beach Hazards Statement | MLB | Volusia | 16 hr |
| Apr 10, 5:08 PM EDT | Special Weather Statement | MLB | Lake, Orange | 82 min |
| Apr 10, 5:56 PM EDT | Special Weather Statement | MLB | Brevard, Seminole, Volusia | 64 min |
| Apr 10, 6:06 PM EDT | Special Marine Warning | MLB | 84 min | |
| Apr 10, 6:33 PM EDT | Special Weather Statement | MLB | Okeechobee, Osceola | 87 min |
| Apr 10, 6:56 PM EDT | Special Marine Warning | MLB | 94 min | |
| Apr 10, 7:12 PM EDT | Special Weather Statement | MLB | Indian River, Martin, Saint Lucie | 63 min |
| Apr 10, 7:31 PM EDT | Special Marine Warning | MLB | 89 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.