Alert archive / Florida / Tornado Warnings in 2022

Tornado Warning 2, NWS Key West, FL

September 27, 2022Monroe County, Florida

NWS Key West, FL issued this tornado warning at Sep 27, 2022, 2:10 AM EDT for Monroe County, Florida. It was in force for 35 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
Sep 27, 2022, 2:10 AM EDT (06:10 UTC)
Expired
Sep 27, 2022, 2:45 AM EDT
In force
35 min
Issued by
NWS Key West, FL
Area
Storm-based polygon
Tornado
Observed
Hail
0.0 in

County Monroe County, FL

The radar

The Miami radar (KAMX), 82 km from the middle of the area, began a volume at 06:09 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 00:00Z, 6.2 hours before the alert went out and 108 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 00:00Z on 2022-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 211 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 00:00Z on 2022-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939Sfc1 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
211 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
897 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

124 
WFUS52 KKEY 270610
TORKEY
FLC087-270645-
/O.NEW.KKEY.TO.W.0002.220927T0610Z-220927T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Key West FL
210 AM EDT Tue Sep 27 2022

The National Weather Service in Key West has issued a

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

* Until 245 AM EDT.

* At 210 AM EDT, a confirmed waterspout was located just offshore
  near Teatable Key, or 8 miles east of East End Of Channel 5 Bridge,
  moving northwest at 15 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters confirmed waterspout moving onshore.

  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 tornado will be near...
  Teatable Key, Lower Matecumbe Key, Upper Matecumbe Key and Windley 
  Key around 225 AM EDT.

Other locations impacted by this tornado include Islamorada.

This includes US 1 between mile markers 74 and 87. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

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

&&

LAT...LON 2488 8076 2493 8071 2494 8065 2501 8057
      2493 8055 2483 8072
TIME...MOT...LOC 0610Z 138DEG 13KT 2484 8064 

TORNADO...OBSERVED
MAX HAIL SIZE...0.00 IN

$$

KBL
2 follow-up statements
665 
WWUS52 KKEY 270614
SVSKEY

Severe Weather Statement
National Weather Service Key West FL
214 AM EDT Tue Sep 27 2022

FLC087-270645-
/O.CON.KKEY.TO.W.0002.000000T0000Z-220927T0645Z/
Upper Keys in Monroe FL-
214 AM EDT Tue Sep 27 2022

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM EDT FOR UPPER
KEYS IN MONROE COUNTY...
    
At 213 AM EDT, a marine thunderstorm capable of producing a tornado 
was located near Teatable Key, or 7 miles east of East End Of 
Channel 5 Bridge, moving northwest at 15 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...
  Teatable Key, Lower Matecumbe Key, Upper Matecumbe Key and Windley 
  Key around 225 AM EDT.

Other locations impacted by this tornadic thunderstorm include
Islamorada.

This includes US 1 between mile markers 74 and 87. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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.

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

&&

LAT...LON 2488 8076 2493 8071 2494 8065 2501 8057
      2493 8055 2483 8072
TIME...MOT...LOC 0613Z 138DEG 13KT 2485 8065 

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

$$

KBL
374 
WWUS52 KKEY 270641
SVSKEY

Severe Weather Statement
National Weather Service Key West FL
241 AM EDT Tue Sep 27 2022

FLC087-270651-
/O.EXP.KKEY.TO.W.0002.000000T0000Z-220927T0645Z/
Upper Keys in Monroe FL-
241 AM EDT Tue Sep 27 2022

...THE TORNADO WARNING FOR UPPER KEYS IN MONROE COUNTY WILL EXPIRE AT
245 AM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 2488 8076 2493 8071 2494 8065 2501 8057
      2493 8055 2483 8072
TIME...MOT...LOC 0641Z 138DEG 13KT 2492 8072 

$$

KBL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 8:55 PM EDTFlood WatchKEYMonroe32 hr
Sep 26, 9:47 PM EDTAreal Flood AdvisoryKEYMonroe3 hr
Sep 26, 10:50 PM EDTSpecial Weather StatementKEY25 min
Sep 27, 12:23 AM EDTSpecial Marine WarningKEY37 min
Sep 27, 12:27 AM EDTTornado WarningKEYMonroe20 min
Sep 27, 1:32 AM EDTSpecial Marine WarningKEY28 min
Sep 27, 1:56 AM EDTSpecial Marine WarningKEY34 min
Sep 27, 2:02 AM EDTSpecial Marine WarningKEY14 min
Sep 27, 2:08 AM EDTSpecial Marine WarningKEY37 min
Sep 27, 2:51 AM EDTSpecial Marine WarningKEY24 min
Sep 27, 3:22 AM EDTAreal Flood AdvisoryKEYMonroe4 hr
Sep 27, 3:50 AM EDTSpecial Marine WarningKEY25 min
Sep 27, 4:13 AM EDTSpecial Marine WarningKEY32 min
Sep 27, 4:59 AM EDTSpecial Marine WarningKEY31 min
Sep 27, 5:13 AM EDTSmall Craft AdvisoryKEY12 hr
Sep 27, 6:44 AM EDTTornado WarningKEYMonroe31 min
Sep 27, 6:45 AM EDTSpecial Marine WarningKEY30 min
Sep 27, 7:23 AM EDTSpecial Marine WarningKEY18 min
Sep 27, 7:25 AM EDTSpecial Marine WarningKEY20 min
Sep 27, 7:38 AM EDTSpecial Marine WarningKEY27 min
Sep 27, 7:52 AM EDTAreal Flood AdvisoryKEYMonroe7 hr
Sep 27, 8:06 AM EDTSpecial Marine WarningKEY8 min
Sep 27, 8:12 AM EDTSpecial Marine WarningKEY18 min
Sep 27, 8:21 AM EDTSpecial Marine WarningKEY25 min
Sep 27, 11:19 AM EDTSpecial Marine WarningKEY10 min

Nearby

Tornado Warnings in Florida, 2022Every tornado warning in 2022Tornadoes in 2022

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.