Alert archive / Florida / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 8, NWS EYW

July 8, 2005Monroe County, Florida

NWS EYW issued this severe thunderstorm warning at Jul 8, 2005, 3:36 PM EDT for Monroe County, Florida. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 8, 2005, 3:36 PM EDT (19:36 UTC)
Expired
Jul 8, 2005, 4:03 PM EDT
In force
27 min
Issued by
NWS EYW
Area
Counties, with a storm outline in the text

County Monroe County, FL

The radar

The Miami radar (KAMX), 51 km from the middle of the area, began a volume at 19:36 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
Jul 8, 3:35 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 7.6 hours before the alert went out and 69 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 2005-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 154 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2005-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
154 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
1267 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS EYW wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 8, 11:00 AM EDT, 4 hours 36 minutes earlier.

Area forecast discussion, Jul 8, 11:00 AM EDT, 4 hours 36 minutes before
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Hazardous weather outlook, Jul 8, 7:00 AM EDT, 8 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KEY WEST FL
700 AM EDT FRI JUL 8 2005

FLZ076-077-078-GMZ031-032-033-052-053-054-072-073-074-075-091000-
MONROE UPPER KEYS-MONROE MIDDLE KEYS-MONROE LOWER KEYS-FLORIDA
BAY-GULF SIDE OF THE LOWER KEYS OUT 20 NM-
EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT-
OCEAN REEF TO CRAIG KEY OUT 20 NM-
CRAIG KEY TO WEST END OF 7 MILE BRIDGE OUT 20 NM-
WEST END OF 7 MILE BRIDGE TO KEY WEST OUT 20 NM-
OCEAN REEF TO CRAIG KEY 20 TO 60 NM OUT-
CRAIG KEY TO WEST END OF 7 MILE BRIDGE 20 TO 60 NM OUT-
WEST END OF 7 MILE BRIDGE TO KEY WEST 20 TO 60 NM OUT-
KEY WEST TO 20 NM WEST OF DRY TORTUGAS OUT 60 NM-
700 AM EDT FRI JUL 8 2005

...HURRICANE WARNING IN EFFECT LOWER KEYS AND ADJACENT WATERS...
...TROPICAL STORM WARNING MIDDLE/UPPER KEYS AND ADJACENT WATERS...
...HURRICANE WATCH IN EFFECT MIDDLE/UPPER KEYS AND ADJACENT WATERS...
...FLOOD WATCH IN EFFECT ALL FLORIDA KEYS...
...SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY THROUGH SATURDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE FLORIDA KEYS AND ADJACENT
COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

CONSULT THE LATEST ADVISORIES FROM THE NATIONAL HURRICANE CENTER
CONCERNING HURRICANE DENNIS. IN ADDITION...REFER TO HURRICANE LOCAL
STATEMENTS ISSUED BY YOUR NATIONAL WEATHER SERVICE IN KEY WEST FOR
DETAILED LOCAL INFORMATION AND LOCAL IMPACTS.

...THUNDERSTORM HAZARDS...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
TONIGHT...AS THE STRONG OUTER SPIRAL RAINBANDS OF HURRICANE DENNIS
APPROACH THE KEYS FROM THE EAST AND SOUTHEAST. ISOLATED STRONG
WATERSPOUTS AND TORNADOES WILL BE POSSIBLE IN THESE RAINBANDS. IN
ADDITION...THUNDERSTORMS WILL PRODUCE DEADLY CLOUD TO GROUND
LIGHTING STRIKES.

...WIND AND SEA HAZARDS...
BREEZES WILL FRESHEN TO GALES BY THIS EVENING AS HURRICANE DENNIS
APPROACHES THE AREA. SEAS WILL BUILD RAPIDLY TODAY AND TONIGHT...AS
HIGH AS 15 TO 20 FEET IN THE STRAITS OF FLORIDA. SUSTAINED WINDS ARE
LIKELY TO EXCEED 40 MPH...WITH GUSTS AS HIGH AS 70 MPH ACROSS THE
LOWER KEYS. SUSTAINED WINDS ARE LIKELY TO EXCEED 30 MPH...WITH GUSTS
AS HIGH AS 60 MPH ACROSS THE MIDDLE AND UPPER KEYS. SUSTAINED WINDS
ARE LIKELY TO EXCEED HURRICANE FORCE IN THE DRY TORTUGAS.

...STORM SURGE HAZARDS...
A STORM SURGE OF 3 TO 6 FEET IS EXPECTED...WITH THE HIGHEST VALUES
ALONG SOUTH AND EAST FACING SHORES OF THE LOWER KEYS.

...FLOOD HAZARDS...
STORM RAINFALL TOTALS OF 4 TO 8 INCHES ARE EXPECTED ACROSS MOST OF
THE KEYS...WITH UP TO 10 INCHES IN PORTIONS OF THE LOWER KEYS.
TORRENTIAL RAINS WILL WORSEN STORM SURGE FLOODING...MAKING DRIVING
AND GENERAL MOVING ABOUT UNSAFE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SATURDAY...HURRICANE DENNIS IS EXPECTED TO PASS JUST WEST OF THE
FLORIDA KEYS. TROPICAL STORM FORCE WINDS WILL LIKELY AFFECT PORTIONS
OF THE KEYS SATURDAY MORNING...WITH SLACKENING WINDS DURING THE DAY.
THE COMBINATION OF VERY HEAVY RAINFALL AND STORM SURGE FLOODING WILL
MAKE DRIVING AND MOVING ABOUT VERY HAZARDOUS ON SATURDAY. IN
ADDITION...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS. ISOLATED
STRONG WATERSPOUTS AND TORNADOES WILL BE POSSIBLE IN THE TRAILING
RAINBANDS OF DEPARTING HURRICANE DENNIS.

SUNDAY THROUGH THURSDAY...ISOLATED TO SCATTERED THUNDERSTORMS ARE
EXPECTED OVER THE FLORIDA KEYS AND SURROUNDING WATERS. THE PRIMARY
THUNDERSTORM HAZARDS WILL BE DEADLY CLOUD TO SURFACE LIGHTNING
STRIKES AND GUSTY WINDS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT FUNNEL CLOUDS...WATERSPOUTS...
TORNADOES...STORM SURGE FLOODING AND OCEAN WATER LEVELS...AND WIND
DAMAGE AND INSTRUMENT-RECORDED WIND GUSTS.

KBK

In the hours before

Special weather statement, Jul 8, 10:43 AM EDT, 4 hours 53 minutes before
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Local storm report, Jul 8, 11:30 AM EDT, 4 hours 6 minutes before
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Special weather statement, Jul 8, 11:55 AM EDT, 3 hours 41 minutes before
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Local storm report, Jul 8, 1:19 PM EDT, 2 hours 17 minutes before
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Special weather statement, Jul 8, 3:01 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
301 PM EDT FRI JUL 8 2005

FLZ076>078-082100-
MONROE LOWER KEYS-MONROE MIDDLE KEYS-MONROE UPPER KEYS-
301 PM EDT FRI JUL 8 2005

...CONDITIONS WILL AGAIN DETERIORATE AS DENNIS APPROACHES...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THAT SHOWERS AND
THUNDERSTORMS HAVE BECOME LESS NUMEROUS OVER THE FLORIDA STRAITS.
HOWEVER...SOME ACTIVITY WILL PERSIST...MOVING WESTWARD AT AROUND
45 MPH OVER THE STRAITS AND ACROSS THE KEYS. THESE SHOWERS AND STORMS
WILL PRODUCE WIND GUSTS TO TROPICAL STORM FORCE...HEAVY RAIN...AND
OCCASIONAL LIGHTNING STRIKES.

ALTHOUGH THE COVERAGE OF THIS ACTIVITY HAS DECREASED FOR A WHILE...IT
WILL INCREASE AGAIN LATER THIS EVENING AS HURRICANE DENNIS APPROACHES
THE AREA. ALSO...EVEN OUTSIDE OF SHOWERS AND STORMS...WIND SPEEDS
WILL CONTINUE TO GRADUALLY INCREASE TODAY...ESPECIALLY IN THE LOWER
KEYS.

ISOLATED TORNADOES ARE POSSIBLE WITHIN THE RAIN BANDS OF HURRICANE
DENNIS. A TORNADO WATCH WILL LIKELY BE ISSUED FOR PART OR ALL OF THE
KEYS LATER TODAY.

STAY TUNED FOR FURTHER UPDATES OR POSSIBLE WARNINGS FROM YOUR
KEY WEST NATIONAL WEATHER SERVICE.

LEE

The office that day

Everything else NWS EYW issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 7:30 AM EDTSevere Thunderstorm WarningEYWMonroe90 min
Jul 8, 8:57 AM EDTSevere Thunderstorm WarningEYWMonroe68 min

Nearby

Severe Thunderstorm Warnings in Florida, 2005Every severe thunderstorm warning in 2005

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.