Alert archive / Florida / Tornado Warnings in 2023

Tornado Warning 22, NWS Melbourne, FL

August 30, 2023Orange County, Seminole County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 30, 2023, 4:34 AM EDT for Orange County, Seminole County, Florida. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 30, 2023, 4:34 AM EDT (08:34 UTC)
Expired
Aug 30, 2023, 5:00 AM EDT
In force
26 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Orange County, FL, Seminole County, FL

The radar

The Melbourne radar (KMLB), 73 km from the middle of the area, began a volume at 08:36 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 29, 8:28 PM EDTTornado WatchSPC10 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.6 hours before the alert went out and 58 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.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 2023-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 2023-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
114 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1012 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

527 
WFUS52 KMLB 300834
TORMLB
FLC095-117-300900-
/O.NEW.KMLB.TO.W.0022.230830T0834Z-230830T0900Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
434 AM EDT Wed Aug 30 2023

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  Southeastern Seminole County in east central Florida...
  East central Orange County in east central Florida...

* Until 500 AM EDT.
    
* At 434 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Bithlo, moving north at 40 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Oviedo, Bithlo, and Chuluota around 440 AM EDT.
  Geneva around 450 AM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Melbourne.

&&

LAT...LON 2874 8105 2872 8103 2871 8104 2870 8102
      2868 8102 2866 8101 2865 8101 2849 8106
      2851 8118 2875 8113
TIME...MOT...LOC 0834Z 193DEG 34KT 2854 8110 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Cristaldi
2 follow-up statements
805 
WWUS52 KMLB 300852
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
452 AM EDT Wed Aug 30 2023

FLC095-300901-
/O.CAN.KMLB.TO.W.0022.000000T0000Z-230830T0900Z/
Orange FL-
452 AM EDT Wed Aug 30 2023

...THE TORNADO WARNING FOR EAST CENTRAL ORANGE COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM EDT for east central
Florida.

LAT...LON 2874 8105 2872 8103 2871 8104 2870 8102
      2868 8102 2866 8101 2865 8101 2861 8102
      2861 8112 2875 8113
TIME...MOT...LOC 0851Z 204DEG 14KT 2862 8106 

$$

FLC117-300900-
/O.CON.KMLB.TO.W.0022.000000T0000Z-230830T0900Z/
Seminole FL-
452 AM EDT Wed Aug 30 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 AM EDT FOR
SOUTHEASTERN SEMINOLE COUNTY...
    
At 451 AM EDT, a severe thunderstorm capable of producing a tornado
was located east of Chuluota, moving northeast at 35 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  St. Johns River east of Geneva around 500 AM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 2874 8105 2872 8103 2871 8104 2870 8102
      2868 8102 2866 8101 2865 8101 2861 8102
      2861 8112 2875 8113
TIME...MOT...LOC 0851Z 204DEG 14KT 2862 8106 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Cristaldi
858 
WWUS52 KMLB 300900
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
500 AM EDT Wed Aug 30 2023

FLC117-300908-
/O.EXP.KMLB.TO.W.0022.000000T0000Z-230830T0900Z/
Seminole FL-
500 AM EDT Wed Aug 30 2023

...THE TORNADO WARNING FOR SOUTHEASTERN SEMINOLE COUNTY WILL EXPIRE
AT 500 AM EDT...
        
The rotation within the storm which prompted the warning has 
weakened once again, and is exiting the warned area. Therefore, the 
warning will be allowed to expire. However gusty winds are still 
possible with this thunderstorm.

The rotation within this storm cell has a history of weakening and 
then strengthening rapidly, so additional warnings could be issued 
at a very short notice!

A Tornado Watch remains in effect until 600 AM EDT for east central
Florida.

LAT...LON 2874 8105 2872 8103 2871 8104 2870 8102
      2868 8102 2866 8101 2865 8101 2861 8102
      2861 8112 2875 8113
TIME...MOT...LOC 0858Z 194DEG 37KT 2868 8104 

$$

Cristaldi

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 30, 3:52 AM EDTRip Current StatementMLBBrevard, Indian River, Martin, Saint Lucie, Volusia16 hr
Aug 30, 4:01 AM EDTAreal Flood AdvisoryMLBOrange, Osceola59 min
Aug 30, 4:06 AM EDTTornado WarningMLBOrange, Osceola24 min
Aug 30, 4:41 AM EDTWind AdvisoryMLBBrevard, Indian River, Lake, Martin, Okeechobee, Orange and 4 more14 hr
Aug 30, 7:19 AM EDTAreal Flood AdvisoryMLBOrange, Osceola86 min
Aug 30, 9:18 AM EDTAreal Flood AdvisoryMLBOsceola117 min
Aug 30, 12:34 PM EDTSpecial Weather StatementMLBMartin26 min
Aug 30, 1:11 PM EDTSpecial Marine WarningMLB64 min
Aug 30, 1:21 PM EDTSpecial Weather StatementMLBIndian River24 min
Aug 30, 1:33 PM EDTSpecial Marine WarningMLB57 min
Aug 30, 1:51 PM EDTSpecial Weather StatementMLBMartin24 min
Aug 30, 2:00 PM EDTSpecial Weather StatementMLBIndian River30 min
Aug 30, 2:05 PM EDTSpecial Marine WarningMLB55 min
Aug 30, 2:12 PM EDTSpecial Marine WarningMLB28 min
Aug 30, 2:38 PM EDTSpecial Weather StatementMLBOrange37 min
Aug 30, 3:08 PM EDTSpecial Weather StatementMLBOkeechobee37 min
Aug 30, 3:39 PM EDTGale WarningMLB5 hr
Aug 30, 3:48 PM EDTSpecial Marine WarningMLB117 min

Nearby

Tornado Warnings in Florida, 2023Every tornado warning in 2023Tornadoes in 2023

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.