Alert archive / Florida / Tornado Warnings in 2024

Tornado Warning 3, NWS Key West, FL

March 22, 2024Monroe County, Florida

NWS Key West, FL issued this tornado warning at Mar 22, 2024, 3:11 PM EDT for Monroe County, Florida. It was in force for 14 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
Mar 22, 2024, 3:11 PM EDT (19:11 UTC)
Expired
Mar 22, 2024, 3:25 PM EDT
In force
14 min
Issued by
NWS Key West, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Monroe County, FL

The radar

The Miami radar (KAMX), 78 km from the middle of the area, began a volume at 19:10 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

Miami, FL (KMFL), launched 12:00Z, 7.2 hours before the alert went out and 104 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, Miami, FL at 12:00Z on 2024-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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, Miami, FL at 12:00Z on 2024-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.19395878Sfc1 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
15 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
992 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

091 
WFUS52 KKEY 221911
TORKEY
FLC087-221945-
/O.NEW.KKEY.TO.W.0003.240322T1911Z-240322T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Key West FL
311 PM EDT Fri Mar 22 2024

The National Weather Service in Key West has issued a

* Tornado Warning for...
  Upper Keys in Monroe County in Florida...

* Until 345 PM EDT.

* At 311 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Teatable Key, or 8 miles east of East End Of
  Channel 5 Bridge, moving north at 30 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...
  Plantation, Upper Matecumbe Key, and Windley Key around 315 PM 
  EDT.

Other locations impacted by this tornadic thunderstorm include
Islamorada.

This includes US 1 between mile markers 78 and 92. 

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.

&&

LAT...LON 2491 8058 2487 8065 2488 8070 2494 8070
      2494 8066 2503 8055 2501 8050
TIME...MOT...LOC 1911Z 201DEG 25KT 2488 8065 

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

$$

NB
1 follow-up statement
448 
WWUS52 KKEY 221925
SVSKEY

Severe Weather Statement
National Weather Service Key West FL
325 PM EDT Fri Mar 22 2024

FLC087-221935-
/O.CAN.KKEY.TO.W.0003.000000T0000Z-240322T1945Z/
Upper Keys in Monroe FL-
325 PM EDT Fri Mar 22 2024

...THE TORNADO WARNING FOR UPPER KEYS IN MONROE COUNTY IS
CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

&&

LAT...LON 2491 8058 2487 8065 2488 8070 2494 8070
      2494 8066 2503 8055 2501 8050
TIME...MOT...LOC 1923Z 201DEG 25KT 2497 8061 

$$

NB

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 22, 9:42 AM EDTSpecial Marine WarningKEY33 min
Mar 22, 10:11 AM EDTSpecial Marine WarningKEY64 min
Mar 22, 11:10 AM EDTSpecial Marine WarningKEY50 min
Mar 22, 11:55 AM EDTSpecial Marine WarningKEY50 min
Mar 22, 12:41 PM EDTSpecial Marine WarningKEY49 min
Mar 22, 1:26 PM EDTSpecial Marine WarningKEY49 min
Mar 22, 1:55 PM EDTSpecial Marine WarningKEY40 min
Mar 22, 2:18 PM EDTSpecial Marine WarningKEY40 min
Mar 22, 2:27 PM EDTSpecial Weather StatementKEYMiami-Dade33 min
Mar 22, 2:34 PM EDTSpecial Marine WarningKEY56 min
Mar 22, 3:08 PM EDTSpecial Marine WarningKEY37 min
Mar 22, 3:45 PM EDTSpecial Marine WarningKEY60 min
Mar 22, 4:14 PM EDTSpecial Marine WarningKEY9 min
Mar 22, 4:39 PM EDTAreal Flood AdvisoryKEYMonroe2 hr
Mar 22, 6:47 PM EDTSpecial Marine WarningKEY58 min
Mar 22, 7:13 PM EDTSpecial Marine WarningKEY62 min

Nearby

Tornado Warnings in Florida, 2024Every tornado warning in 2024Tornadoes in 2024

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.