Alert archive / Florida / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 21, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Apr 25, 2023, 4:11 PM EDT for Lake County, Florida. It was in force for 34 min. 8 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 25, 2023, 4:11 PM EDT (20:11 UTC)
- Expired
- Apr 25, 2023, 4:45 PM EDT
- In force
- 34 min
- Issued by
- NWS Melbourne, FL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Lake County, FL
The radar
The Tampa radar (KTBW), 117 km from the middle of the area, began a volume at 20:13 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 25, 4:30 PM EDT | TSTM WND DMG | Mascotte, FL | TREES DOWNED IN MASCOTTE AREA. |
| Apr 25, 4:30 PM EDT | HAIL 1 | 1 Sw Mascotte, FL | TRAINED SPOTTER REPORTS QUARTER SIZE HAIL IN MASCOTTE. |
| Apr 25, 4:30 PM EDT | HAIL 1.25 | Mascotte, FL | |
| Apr 25, 4:30 PM EDT | HAIL 1.75 | 1 Sw Mascotte, FL | TRAINED SPOTTER REPORTS QUARTER SIZE HAIL IN MASCOTTE. UPDATED REPORT WITH GOLF BALL SIZE HAIL AND NEIGHBORS REPORTING DAMAGE TO WINDOWS. |
| Apr 25, 4:30 PM EDT | HAIL 2.75 | Mascotte, FL | BASEBALL SIZE HAIL REPORTED NEAR MASCOTTE. |
| Apr 25, 4:31 PM EDT | TSTM WND DMG | Mascotte, FL | TREE DOWN NEAR BAY LAKE AVE AND STATE ROAD 50 IN MASCOTTE. |
| Apr 25, 4:33 PM EDT | TSTM WND DMG | 1 Ssw Groveland, FL | TREE DOWN NEAR S ILLINOIS AVE AND E SUNSET ST. |
| Apr 25, 4:33 PM EDT | TSTM WND DMG | 1 Sw Groveland, FL | TREE DOWN NEAR S LAKE AVE AND E SWANSON ST. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tampa Bay, FL (KTBW), launched 12:00Z, 8.2 hours before the alert went out and 117 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
- 248 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 809 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 200 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
The text
As transmitted.
556
WUUS52 KMLB 252011
SVRMLB
FLC069-252045-
/O.NEW.KMLB.SV.W.0021.230425T2011Z-230425T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Melbourne FL
411 PM EDT Tue Apr 25 2023
The National Weather Service in Melbourne has issued a
* Severe Thunderstorm Warning for...
Southern Lake County in east central Florida...
* Until 445 PM EDT.
* At 411 PM EDT, a severe thunderstorm was located near Mascotte,
moving southeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Groveland, Mascotte, Howey-In-the-hills and Minneola.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2875 8195 2868 8173 2849 8181 2859 8196
TIME...MOT...LOC 2011Z 298DEG 17KT 2866 8193
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Kelly1 follow-up statement
740
WWUS52 KMLB 252024
SVSMLB
Severe Weather Statement
National Weather Service Melbourne FL
424 PM EDT Tue Apr 25 2023
FLC069-252045-
/O.CON.KMLB.SV.W.0021.000000T0000Z-230425T2045Z/
Lake FL-
424 PM EDT Tue Apr 25 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHERN LAKE COUNTY...
At 424 PM EDT, a severe thunderstorm was located over Mascotte,
moving southeast at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Groveland, Mascotte and Minneola.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into a
small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2871 8195 2864 8175 2849 8181 2859 8196
TIME...MOT...LOC 2024Z 316DEG 21KT 2860 8191
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KellyThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 24, 8:02 PM EDT | Areal Flood Advisory | MLB | Saint Lucie | 3 hr |
| Apr 24, 8:06 PM EDT | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 39 min |
| Apr 25, 11:27 AM EDT | Special Marine Warning | MLB | 48 min | |
| Apr 25, 2:26 PM EDT | Special Marine Warning | MLB | 94 min | |
| Apr 25, 3:00 PM EDT | Special Marine Warning | MLB | 60 min | |
| Apr 25, 3:02 PM EDT | Special Weather Statement | MLB | Martin | 28 min |
| Apr 25, 3:29 PM EDT | Special Weather Statement | MLB | Martin | 31 min |
| Apr 25, 3:38 PM EDT | Special Weather Statement | MLB | Saint Lucie | 37 min |
| Apr 25, 3:46 PM EDT | Special Weather Statement | MLB | Indian River | 29 min |
| Apr 25, 4:01 PM EDT | Special Weather Statement | MLB | Lake | 29 min |
| Apr 25, 4:05 PM EDT | Severe Thunderstorm Warning | MLB | Lake | 25 min |
| Apr 25, 4:09 PM EDT | Severe Thunderstorm Warning | MLB | Indian River, Saint Lucie | 51 min |
| Apr 25, 4:30 PM EDT | Severe Thunderstorm Warning | MLB | Lake | 30 min |
| Apr 25, 4:35 PM EDT | Severe Thunderstorm Warning | MLB | Lake | 40 min |
| Apr 25, 4:54 PM EDT | Severe Thunderstorm Warning | MLB | Lake | 27 min |
| Apr 25, 4:56 PM EDT | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 49 min |
| Apr 25, 4:58 PM EDT | Special Weather Statement | MLB | Lake | 32 min |
| Apr 25, 5:03 PM EDT | Severe Thunderstorm Warning | MLB | Lake, Orange, Osceola | 42 min |
| Apr 25, 5:24 PM EDT | Special Weather Statement | MLB | Orange | 36 min |
| Apr 25, 5:34 PM EDT | Severe Thunderstorm Warning | MLB | Osceola | 41 min |
| Apr 25, 5:58 PM EDT | Special Weather Statement | MLB | Martin | 32 min |
| Apr 25, 6:04 PM EDT | Special Weather Statement | MLB | Osceola | 26 min |
| Apr 25, 6:17 PM EDT | Special Weather Statement | MLB | Osceola | 43 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2023Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.