Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 23, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Jul 8, 2021, 1:04 PM EDT for Lake County, Orange 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
- Jul 8, 2021, 1:04 PM EDT (17:04 UTC)
- Expired
- Jul 8, 2021, 1:30 PM EDT
- In force
- 26 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lake County, FL, Orange County, FL
The radar
The Melbourne radar (KMLB), 98 km from the middle of the area, began a volume at 17:03 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 12:00Z, 5.1 hours before the alert went out and 105 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
- 652 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 917 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
210 WUUS52 KMLB 081704 SVRMLB FLC069-095-081730- /O.NEW.KMLB.SV.W.0023.210708T1704Z-210708T1730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Melbourne FL 104 PM EDT Thu Jul 8 2021 The National Weather Service in Melbourne has issued a * Severe Thunderstorm Warning for... South central Lake County in east central Florida... Southwestern Orange County in east central Florida... * Until 130 PM EDT. * At 102 PM EDT, a severe thunderstorm was located near Lake Louisa, or 7 miles west of Bay Lake, moving east at 25 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Bay Lake, Lake Buena Vista, Orlando, Ocoee, Winter Garden and Windermere. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 2854 8143 2835 8138 2835 8179 2849 8183 TIME...MOT...LOC 1702Z 262DEG 23KT 2841 8168 HAIL...<.75IN WIND...60MPH $$ Volkmer
2 follow-up statements
595
WWUS52 KMLB 081722
SVSMLB
Severe Weather Statement
National Weather Service Melbourne FL
122 PM EDT Thu Jul 8 2021
FLC069-081730-
/O.CAN.KMLB.SV.W.0023.000000T0000Z-210708T1730Z/
Lake FL-
122 PM EDT Thu Jul 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL LAKE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 2850 8145 2835 8143 2835 8165 2847 8166
2848 8166
TIME...MOT...LOC 1720Z 262DEG 23KT 2843 8155
$$
FLC095-081730-
/O.CON.KMLB.SV.W.0023.000000T0000Z-210708T1730Z/
Orange FL-
122 PM EDT Thu Jul 8 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR SOUTHWESTERN ORANGE COUNTY...
At 120 PM EDT, a severe thunderstorm was located over Bay Lake,
moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Bay Lake, Lake Buena Vista, Orlando, and Windermere.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2850 8145 2835 8143 2835 8165 2847 8166
2848 8166
TIME...MOT...LOC 1720Z 262DEG 23KT 2843 8155
HAIL...<.75IN
WIND...60MPH
$$
Volkmer637
WWUS52 KMLB 081726
SVSMLB
Severe Weather Statement
National Weather Service Melbourne FL
126 PM EDT Thu Jul 8 2021
FLC095-081735-
/O.EXP.KMLB.SV.W.0023.000000T0000Z-210708T1730Z/
Orange FL-
126 PM EDT Thu Jul 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ORANGE COUNTY
WILL EXPIRE AT 130 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds, cloud to ground lightning and heavy rain are still possible
with this thunderstorm.
LAT...LON 2850 8145 2835 8143 2835 8165 2847 8166
2848 8166
TIME...MOT...LOC 1725Z 262DEG 23KT 2843 8153
$$
15The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 12:30 PM EDT | Special Weather Statement | MLB | Orange | 30 min |
| Jul 8, 12:33 PM EDT | Special Weather Statement | MLB | Lake | 42 min |
| Jul 8, 12:43 PM EDT | Special Marine Warning | MLB | 62 min | |
| Jul 8, 12:49 PM EDT | Special Weather Statement | MLB | Volusia | 41 min |
| Jul 8, 2:02 PM EDT | Special Marine Warning | MLB | 88 min | |
| Jul 8, 2:53 PM EDT | Special Marine Warning | MLB | 67 min | |
| Jul 8, 3:11 PM EDT | Special Marine Warning | MLB | 94 min | |
| Jul 8, 4:07 PM EDT | Areal Flood Advisory | MLB | Brevard | 83 min |
| Jul 8, 6:26 PM EDT | Special Weather Statement | MLB | Okeechobee | 34 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.