Alert archive / Florida / Red Flag Warnings in 2011
Red Flag Warning 16, NWS Melbourne, FL
NWS Melbourne, FL issued this red flag warning at May 7, 2011, 4:23 AM EDT for 5 counties in Florida. It took effect at May 7, 2011, 12:00 PM EDT. It was in force for 7 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 7, 2011, 4:23 AM EDT (08:23 UTC)
- In effect from
- May 7, 2011, 12:00 PM EDT
- Expired
- May 7, 2011, 7:00 PM EDT
- In force
- 7 hr
- Issued by
- NWS Melbourne, FL
Counties Lake County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 86 km from the middle of the area, began a volume at 08:24 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
Cape Canaveral, FL (KXMR), launched 00:00Z, 8.4 hours before the alert went out and 81 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
- 788 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 832 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
175 WWUS82 KMLB 070823 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 423 AM EDT SAT MAY 7 2011 FLZ041-044>046-053-141-144-072300- /O.NEW.KMLB.FW.W.0016.110507T1600Z-110507T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA- COASTAL VOLUSIA-SOUTHERN LAKE- 423 AM EDT SAT MAY 7 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING... 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. A DRY AIR MASS WILL MOVE INTO THE REGION TODAY BEHIND A WEAK COLD FRONT MOVING THROUGH THE STATE. 6 TO 7 HOURS OF RELATIVE HUMIDITY VALUES BELOW 35 PERCENT ARE EXPECTED IN THE WARNING AREA...WITH VALUES DROPPING TO AROUND 25 PERCENT. ENERGY RELEASE COMPONENT VALUES HAVE INCREASED INTO THE UPPER 30S OVER MOST OF THIS AREA AS WELL. 20 FT AND TRANSPORT WINDS WILL REMAIN AT 10 MPH OR LESS THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR WITHIN THE NEXT 24 HOURS. && $$ MOSES
2 follow-up statements
715 WWUS82 KMLB 071809 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 209 PM EDT SAT MAY 7 2011 FLZ041-044>046-053-144-080615- /O.NEW.KMLB.FW.A.0011.110508T1700Z-110508T2300Z/ /O.CON.KMLB.FW.W.0016.000000T0000Z-110507T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA- SOUTHERN LAKE- 209 PM EDT SAT MAY 7 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR FIRE WEATHER ZONES 041...044...045... 046...053 AND 144... ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR FIRE WEATHER ZONES 041...044...045...046...053 AND 144... THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING. A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING. A DRY AIR MASS OVER THE REGION WILL ALLOW AFTERNOON RELATIVE HUMIDITY VALUES TO FALL BELOW 35 PERCENT FOR 6 TO 7 HOURS TODAY AND FOR 4 TO 6 HOURS ON SUNDAY. ENERGY RELEASE COMPONENT VALUES HAVE INCREASED INTO THE UPPER 30S OVER MOST OF THIS AREA AS WELL. 20 FT AND TRANSPORT WINDS WILL REMAIN AT 10 MPH OR LESS THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR WITHIN THE NEXT 24 HOURS. A FIRE WEATHER WATCH IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE FORECAST TO OCCUR IN THE NEXT 24 TO 96 HOURS. PLEASE MONITOR UPCOMING FORECASTS FOR THE LATEST FIRE WEATHER INFORMATION. && $$ FLZ141-072300- /O.CON.KMLB.FW.W.0016.000000T0000Z-110507T2300Z/ COASTAL VOLUSIA- 209 PM EDT SAT MAY 7 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING FOR FIRE WEATHER ZONE 141... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING. A DRY AIR MASS WILL MOVE INTO THE REGION TODAY BEHIND A WEAK COLD FRONT MOVING THROUGH THE STATE. 6 TO 7 HOURS OF RELATIVE HUMIDITY VALUES BELOW 35 PERCENT ARE EXPECTED IN THE WARNING AREA...WITH VALUES DROPPING TO AROUND 25 PERCENT. ENERGY RELEASE COMPONENT VALUES HAVE INCREASED INTO THE UPPER 30S OVER MOST OF THIS AREA AS WELL. 20 FT AND TRANSPORT WINDS WILL REMAIN AT 10 MPH OR LESS THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR WITHIN THE NEXT 24 HOURS. && $$
182 WWUS82 KMLB 072328 RFWMLB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MELBOURNE FL 728 PM EDT SAT MAY 7 2011 FLZ041-044>046-053-144-081000- /O.EXP.KMLB.FW.W.0016.000000T0000Z-110507T2300Z/ /O.CON.KMLB.FW.A.0011.110508T1700Z-110508T2300Z/ INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA- SOUTHERN LAKE- 728 PM EDT SAT MAY 7 2011 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR FIRE WEATHER ZONES 041...044...045... 046...053 AND 144... A DRY AIR MASS OVER THE REGION WILL ALLOW AFTERNOON RELATIVE HUMIDITY VALUES TO FALL BELOW 35 PERCENT FOR 4 TO 6 HOURS ON SUNDAY. ENERGY RELEASE COMPONENT VALUES HAVE INCREASED INTO THE UPPER 30S OVER MOST OF THIS AREA. 20 FT AND TRANSPORT WINDS WILL REMAIN AT 10 MPH OR LESS THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR THE SPREAD OF WILDFIRE ARE FORECAST TO OCCUR IN THE NEXT 24 TO 96 HOURS. PLEASE MONITOR UPCOMING FORECASTS FOR THE LATEST FIRE WEATHER INFORMATION. && $$ FLZ141-080030- /O.EXP.KMLB.FW.W.0016.000000T0000Z-110507T2300Z/ COASTAL VOLUSIA- 728 PM EDT SAT MAY 7 2011 ...RED FLAG WARNING HAS EXPIRED FOR FIRE WEATHER ZONE 141... THE RED FLAG WARNING IS NO LONGER IN EFFECT. $$ SEDLOCK
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 2:09 PM EDT | Fire Weather Watch | MLB | Lake, Orange, Osceola, Seminole, Volusia | 14 hr |
Nearby
Red Flag Warnings in Florida, 2011Every red flag warning in 2011
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.