Alert archive / Florida / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 34, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at May 18, 2020, 8:10 PM EDT for Miami-Dade County, Florida. It was in force for 27 min. 1 report 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
- May 18, 2020, 8:10 PM EDT (00:10 UTC)
- Expired
- May 18, 2020, 8:37 PM EDT
- In force
- 27 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Miami-Dade County, FL
The radar
The Miami radar (KAMX), 20 km from the middle of the area, began a volume at 00:09 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 18, 8:20 PM EDT | TSTM WND DMG | 1 W Key Biscayne, FL | AN OFF DUTY NWS EMPLOYEE REPORTED A LARGE BRANCH BROKE OF A TREE AT THE INTERSECTION OF MASHTA DRIVE AND ALLENDALE ROAD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 10 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 0.2 hours before the alert went out and 15 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
- 1394 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 628 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 9.6
The text
As transmitted.
511
WUUS52 KMFL 190010
SVRMFL
FLC086-190100-
/O.NEW.KMFL.SV.W.0034.200519T0010Z-200519T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Miami FL
810 PM EDT Mon May 18 2020
The National Weather Service in Miami has issued a
* Severe Thunderstorm Warning for...
Central Miami-Dade County in southeastern Florida...
* Until 900 PM EDT.
* At 810 PM EDT, a severe thunderstorm was located over Coral Gables,
moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Miami, Miami Beach, Coral Gables, Key Biscayne and South Miami.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Miami. You can also share your report with NWS Miami on
Facebook and Twitter.
&&
LAT...LON 2563 8029 2571 8032 2574 8028 2579 8011
2565 8015
TIME...MOT...LOC 0010Z 269DEG 27KT 2567 8025
TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
$$
Cohen3 follow-up statements
786
WWUS52 KMFL 190017
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
817 PM EDT Mon May 18 2020
FLC086-190100-
/O.CON.KMFL.SV.W.0034.000000T0000Z-200519T0100Z/
Miami-Dade FL-
817 PM EDT Mon May 18 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR EASTERN MIAMI-DADE COUNTY...
At 816 PM EDT, a severe thunderstorm was approaching Key Biscayne,
moving east at 25 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Miami, Miami Beach, Coral Gables, Key Biscayne and South Miami.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2563 8029 2569 8029 2574 8028 2579 8011
2565 8015
TIME...MOT...LOC 0016Z 251DEG 24KT 2570 8019
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...70MPH
$$
Cohen051
WWUS52 KMFL 190030
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
830 PM EDT Mon May 18 2020
FLC086-190100-
/O.CON.KMFL.SV.W.0034.000000T0000Z-200519T0100Z/
Miami-Dade FL-
830 PM EDT Mon May 18 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR CENTRAL MIAMI-DADE COUNTY...
At 830 PM EDT, a severe thunderstorm was located over Key Biscayne,
moving east at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Miami, Miami Beach, Key Biscayne, Virginia Key and Fisher Island.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Miami. You can also share your report with NWS Miami on Facebook and
Twitter.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 2565 8015 2565 8018 2571 8019 2577 8017
2579 8011
TIME...MOT...LOC 0030Z 260DEG 14KT 2571 8012
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$
Cohen877
WWUS52 KMFL 190037
SVSMFL
Severe Weather Statement
National Weather Service Miami FL
837 PM EDT Mon May 18 2020
FLC086-190046-
/O.CAN.KMFL.SV.W.0034.000000T0000Z-200519T0100Z/
Miami-Dade FL-
837 PM EDT Mon May 18 2020
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MIAMI-DADE COUNTY IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Miami.
LAT...LON 2565 8015 2565 8018 2571 8019 2577 8017
2579 8011
TIME...MOT...LOC 0036Z 269DEG 27KT 2571 8006
$$
CohenWhat 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 Miami, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 18, 7:34 PM EDT, 36 minutes earlier.
Area forecast discussion, May 18, 7:34 PM EDT, 36 minutes before
Area Forecast Discussion National Weather Service Miami FL 734 PM EDT Mon May 18 2020 .Aviation... A line of showers and thunderstorms will continue to push eastward over the next several hours. Periods of MVFR and IFR will occur especially across the east coast terminals as this line moves through. There will remain a chance of showers through the overnight across the east coast terminals. Light and variable winds will increase once again out of the southwest by the middle of Tuesday morning. Scattered thunderstorms will develop again on Tuesday afternoon especially interior and east. && .Update... Updated the forecast based on current radar trends. A line of thunderstorms will continue to push into the east coast metro areas over the next hour or two. There could be strong gusty winds, funnel clouds, and heavy rainfall which could lead to some flooding of the urban area especially in locations that have received heavy amounts of rain earlier. Behind this line, showers will linger for the rest of the evening hours and into the overnight hours across the eastern and southern areas. Patchy fog cannot be ruled out across portions of the interior sections late tonight into early Tuesday morning. Winds on Tuesday will once again increase out of the southwest as another round of showers and thunderstorms will develop later Tuesday morning and Tuesday afternoon. The highest chances will be across the interior and east coast sections. Some of the thunderstorms could become strong once again along the east coast and they could contain gusty winds, heavy rainfall, small hail, and frequent lightning. && .Prev Discussion... /issued 344 PM EDT Mon May 18 2020/ ..Strong to severe storms this afternoon/early evening... ..Another round possible overnight in Southwest Florida... Short Term (Rest of Today and Tonight)... Tropical Storm Arthur is currently moving over the outer banks of North Carolina and it will continue to move northeastward off of the Mid-Atlantic coastline through the rest of the afternoon and evening hours. At the same time, the tail of Arthur, basically a trough of low pressure will extend into the southeastern portion of the country. This also combined with a mid to upper level area of low pressure moving into the Tennessee Valley and a trough of low pressure moving into the eastern Gulf of Mexico will allow for a south southwesterly flow to continue across South Florida. The Gulf coast sea breeze will be allowed to push inland as the east coast sea breeze will remain pushed up against the coast. All of this will result in the development of scattered to numerous showers and thunderstorms especially over the east coast and the Lake Okeechobee region. Some of these thunderstorms could be strong to severe this afternoon and this evening as 500mb temps will be between -9 and -11C across the region along with steep lapse rates and high MLCAPE over the area. The primary impacts with these storms will be heavy rainfall, frequent lightning strikes, small hail, and gusty winds. The potential for some minor street flooding is possible as well across the east coast with the heavy rainfall from thunderstorms. The trough of low pressure over the eastern Gulf of Mexico will slowly move across the region and into the Atlantic waters later this evening and into the overnight hours. This will help to keep the chances of showers and thunderstorms around during this time frame. The greatest chances of showers and thunderstorms will continue to be across the east coast as well as the Lake Okeechobee region. Long Term (Tuesday through Sunday)... The mid-level trough will push into the Gulf waters late tonight into early Tuesday morning likely spurring additional convection. Portions of Southwest Florida could see vigorous showers and thunderstorms overnight spurred by the mid and upper level support provided by the trough moving through with activity pushing eastward through the morning. The afternoon focus will remain along the east coast where the sea breeze, the surface boundary, and remnant moisture could interact to produce some convection. The mid-level low will emerge over the Tennessee River Valley late Tuesday into Wednesday. The surface boundary and associated moisture should slip to the southeast of the area which may allow a brief dry slot for portions of the area to emerge. Any dryness should be short- lived as the mid-level low pulls back northward with the moisture returning in time for the sea breeze convection to potentially produce thunderstorms with the potential for heavy rain. The generally unsettled pattern will persist as the rich moisture remains across the region through the rest of the week. Diurnal heating and the presence of sea breezes due to a light synoptic flow should allow mentionable thunderstorm chances most days except for those brief winds where a dry slot of air could move through portions of the region. A ridge of high pressure may try to build over the aloft over the Gulf but it may not be able to cap convection as much as a stronger high centered closer to the area. Temperatures will remain warm with upper 80s and 90s on most afternoons and mid 60s to 70s for minimum temperatures. Marine... Southwesterly flow will continue through the middle of the week across the Atlantic and Gulf coastal waters. Seas will generally remain at 3 feet or less across the local waters. Scattered to numerous showers and thunderstorms will be possible each day through the end of the week. Winds and waves will be higher in and around any showers or thunderstorms. Prev Discussion... /issued 135 PM EDT Mon May 18 2020/ Aviation... Mainly VFR conditions will prevail throughout the forecast period. The exception to this will be in and around any showers or thunderstorms that develop this afternoon and this evening where periods of MVFR or even IFR conditions are possible. South to southwesterly winds will continue through this evening between 10 and 15 knots. Patchy fog development is possible across the interior sections during the overnight hours. Prev Discussion... /issued 1121 AM EDT Mon May 18 2020/ Update / Mesoscale Discussion... Midlevel water vapor loops indicate a well-defined southern-stream cyclonic-flow perturbation centered over the Middle Gulf waters well off the Tampa Bay Area coast. This feature will continue drifting eastward or even southeastward, as the centroid of its accompanying cyclonically-curved jet streak still lies upstream of the trough axis. As a result, CVA-associated height falls and related DCVA- enhanced midlevel cooling preceding this shortwave trough will continue to overspread the NWS Miami County Warning Area through the day -- with 500-mb temperatures falling to -8C to -10C from southeast to northwest. Meanwhile the low-level mass response preceding the wave is favoring enhanced isentropic ascent and regenerative convection within a corridor from the east-central Gulf toward areas from Tampa to Fort Myers. This activity will progress northeastward to eastward, with diurnally destabilizing inflow favoring an increasing potential for robust convection to accompany this activity across Glades and Hendry Counties toward/across the Lake Okeechobee region from late morning into early afternoon. Meanwhile, areas of cloud-thinning and partial clearing southeastward of this regime toward southeast Florida will favor strong destabilization by this afternoon. Concurrently, differential-heating-induced baroclinicity and solenoidal circulations along the edges of thicker/denser mid/high- level cloud decks and old outflow accompanying the more pronounced isentropic-ascent regime, coupled with decaying outflow from dissipating convection presently ongoing over Biscayne Bay vicinity, along with some potential for a modest/broad east-coast sea-breeze circulation to ensue, will favor a marked uptick in robust convective potential this afternoon across southeast Florida. Convection will preferentially regenerate into areas of highest theta-e through the afternoon into the early evening -- i.e., southeastward to southward. Given the extremely moist planetary boundary layer -- associated with lowest-100-mb mean mixing ratios of 15-16 g/kg -- convective inhibition will be low amid sufficient low-level ascent -- aided by the larger-scale synoptic ascent -- to support high confidence in the aforementioned regenerative convective regime taking place today. Moreover, it appears that an elevated mixed layer has overspread South Florida from the Sierra Madre Mountains of Mexico -- accompanied by maximum midlevel lapse rates of 7.0-7.5 C/km. Related enhanced midlevel CAPE density will favor intense parcel accelerations, offsetting the effects of precipitation loading / dry entrainment, in support of robust updrafts. While modest, the presence of 20-30 kt of effective shear -- accompanying the enhanced midlevel height gradient peripheral to the shortwave trough -- will combine with 2000-3000 J/kg of midlevel-instability-enhanced boundary-layer buoyancy for intense multicell clusters. In addition to sporadic instances of small hail, these parameters suggest large hail -- to around quarter size -- may occur especially where updrafts remain in more separated/discrete phases. Moreover, the enhanced downward buoyancy accompanying the EML could favor damaging wind gusts where more substantial cell interactions take place among the multicell clusters. Confidence continues to grow in isolated severe winds and hail affecting southeast Florida this afternoon -- especially from Downtown Miami / Miami Beach area northward through coastal/metro Palm Beach County. The most-likely timing is 1-7PM. The latest output from the Statistical Severe Risk Assessment Model (SSCRAM) depicts both conditional and unconditional probabilities for damaging wind gusts and severe hail across these coastal and metro areas of South Florida this afternoon, further increasing confidence in these convective hazards materializing in the strongest storms that develop. However, earlier scattered strong thunderstorms may also affect Hendry/Glades Counties through the Lake Okeechobee region. In addition to severe hail/wind potential today, there is also a reasonable-worst case scenario for a slight inland mass flux in the lowest 1 km AGL to favor effective SRH near 100 m2/s2 in immediate proximity to the east coast. Related streamwise-vorticity enhancements could conditionally favor the potential for convection to briefly attain supercellular characteristics within 10-15 miles of the immediate Atlantic coast -- locally boosting the hail/wind potential, and possibly supporting a brief/weak tornado. The enhanced midlevel lapse rates and related parcel accelerations would also contribute to enhanced vorticity stretching in the low-levels, and thus there is a reasonable worst-case scenario for brief tornado with the east-coast-area convective regime. Finally, given widespread 1.9-2.0-inch precipitable water, enhanced outflow establishing foci for convective regeneration/training amid low MLCINH, and anticipated slow multicellular-convection motion, heavy rain and flooding will be a concern -- especially for the east- coast metro areas and vicinity. If training convection were to become established over areas that experienced several inches of rain over the past few days, the potential for significant urban flooding could occur this afternoon. Such potential would be highly localized, though antecedent conditions may bolster this risk. Ultimately, there remains some uncertainty regarding the exact details of most-likely strong/severe risk, along with a bit of uncertainty about the maximum magnitude of potential convective intensity. This is especially the case given the modest large-scale ascent over the region. However, there is growing confidence in a severe-thunderstorm and flooding potential for the east coast metro areas and vicinity, and all interests across South Florida are encouraged to monitor weather conditions closely today. && .Preliminary Point Temps/PoPs... West Palm Beach 72 87 72 87 / 50 60 20 60 Fort Lauderdale 75 87 74 86 / 50 60 20 60 Miami 74 88 74 87 / 50 60 20 50 Naples 72 85 73 86 / 60 50 10 20 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...None. AM...None. GM...None. && Update...55/CWC Aviation...55/CWC
Hazardous weather outlook, May 18, 4:21 PM EDT, 3 hours 49 minutes before
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 421 PM EDT Mon May 18 2020 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 190830- Lake Okeechobee-Biscayne Bay- Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM- Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM- Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM- Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM excluding the territorial waters of Bahamas-Glades-Hendry- Inland Palm Beach-Metro Palm Beach-Coastal Collier-Inland Collier- Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade- Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami- Dade-Far South Miami-Dade- Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM- Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM- Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM- 421 PM EDT Mon May 18 2020 ...STRONG TO POSSIBLE SEVERE STORMS THIS EVENING... ...HEAVY RAINFALL AND LOCALIZED FLOODING POSSIBLE THIS EVENING... This hazardous weather outlook is for South Florida. .DAY ONE...TONIGHT Thunderstorms: Scattered to numerous thunderstorms are possible across all of South Florida and its waters this evening. A few of the thunderstorms could become strong, to even severe, with gusty winds, hail, frequent lightning strikes, and heavy rainfall. A weak isolated tornado is possible across eastern portions of South Florida. Tornado: A weak isolated tornado may be possible this evening with the strong to severe storms, primarily across the east coast of South Florida. Wind: The strongest thunderstorms could produce wind gusts up to 60 mph. Hail: The strongest thunderstorms could produce hail up to quarter size. Flooding: Heavy rainfall from thunderstorms, and repeated rounds of showers/storms, can produce flooding in low lying and poorly drainage areas, especially for the east coast where it has been raining the past few days. Waterspouts: There is a slight chance of waterspouts with any thunderstorms and showers that do develop over the local waters. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY There will be a chance of thunderstorms across South Florida throughout the week. Gusty winds, locally heavy rainfall, lightning, and waterspouts will be possible with the strongest storms. The threat of rip currents for Atlantic beaches will also increase towards the end of the work week as winds become more easterly over South Florida. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about observed severe weather to the NWS while following all local, state, and CDC guidelines. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami.
In the hours before
Special weather statement, May 18, 7:12 PM EDT, 58 minutes before
Special Weather Statement
National Weather Service Miami FL
712 PM EDT Mon May 18 2020
FLZ073-074-173-174-190015-
Metropolitan Miami Dade FL-Far South Miami-Dade County FL-
Inland Miami-Dade County FL-Coastal Miami Dade County FL-
712 PM EDT Mon May 18 2020
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL MIAMI-DADE COUNTY UNTIL
815 PM EDT...
* At 712 PM EDT, National Weather Service meteorologists were
tracking strong thunderstorms along a line extending from 7 miles
northeast of Fortymile Bend to near Shark Valley Obs Tower to
Pa-Hay-Okee Overlook. Movement was east at 30 mph.
* Wind gusts up to 50 mph possible with these storms.
* Locations impacted include...
Miami, Hialeah, Homestead, Coral Gables, South Miami, Homestead
General Airport, The Redland, Kendall, Homestead Miami Speedway,
Doral, Hialeah Gardens, Pinecrest, Miami Springs, Sweetwater,
Florida City, West Miami, Medley, Westchester, Naranja and Glenvar
Heights.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2587 8028 2574 8027 2539 8044 2540 8075
2555 8064 2585 8064
TIME...MOT...LOC 2312Z 267DEG 25KT 2584 8075 2560 8070 2542 8081
Cohen/13Local storm report, May 18, 7:14 PM EDT, 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
714 PM EDT MON MAY 18 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0537 PM TSTM WND GST 3 SSE NAPLES 26.10N 81.78W
05/18/2020 M58 MPH COLLIER FL MESONET
A WIND GUST OF 58 MPH WAS MEASURED AT THE EARTH
NETWORKS SITE NPLHH AT THE HAMILTON HARBOR YACHT CLUB IN
NAPLES.
0546 PM TSTM WND GST 2 WNW EAST NAPLES 26.15N 81.77W
05/18/2020 M51 MPH COLLIER FL ASOS
A WIND GUST OF 51 MPH WAS MEASURED AT THE ASOS AT
KAPF/NAPLES MUNICIPAL AIRPORT.
0547 PM MARINE TSTM WIND 1 S MARCO ISLAND 25.92N 81.73W
05/18/2020 M39 MPH COLLIER FL MESONET
A WIND GUST OF 39 MPH/34 KNOTS WAS MEASURED AT THE
EARTH NETWORK SITE AT THE CHARTER CLUB OF MARCO ISLAND.
0549 PM MARINE TSTM WIND 3 N MARCO ISLAND 25.98N 81.73W
05/18/2020 M43 MPH COLLIER FL MESONET
A WIND GUST OF 43 MPH/37 KNOTS WAS MEASURED AT THE
EARTH NETWORK SITE IN ISLE OF CAPRI.
0554 PM MARINE TSTM WIND 1 SW NAPLES 26.13N 81.81W
05/18/2020 M47 MPH GMZ656 FL OTHER FEDERAL
A WIND GUST OF 47 MPH/41 KNOTS FROM THE NW WAS MEASURED
AT THE NOS STATION AT NAPLES PIER.
0614 PM MARINE TSTM WIND EVERGLADES CITY 25.86N 81.39W
05/18/2020 M45 MPH COLLIER FL MESONET
A WIND GUST OF 45 MPH/39 KNOTS WAS MEASURED AT THE
EARTH NETWORKS SITE AT THE EVERGLADES CITY SCHOOL.
0620 PM FLOOD 3 SSE PELICAN BAY 26.19N 81.80W
05/18/2020 COLLIER FL SOCIAL MEDIA
PICTURE OF STREET FLOODING WAS RECEIVED VIA TWITTER AT
THE INTERSECTION OF TAMIAMI TRAIL AND OHIO DRIVE.
&&
EVENT NUMBER MFL2000081
EVENT NUMBER MFL2000082
EVENT NUMBER MFL2000083
EVENT NUMBER MFL2000084
EVENT NUMBER MFL2000085
EVENT NUMBER MFL2000086
EVENT NUMBER MFL2000087
MOLLEDASpecial weather statement, May 18, 7:17 PM EDT, 53 minutes before
Special Weather Statement
National Weather Service Miami FL
717 PM EDT Mon May 18 2020
FLZ067-071-190000-
Inland Broward County FL-Inland Palm Beach County FL-
717 PM EDT Mon May 18 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BROWARD AND SOUTHWESTERN
PALM BEACH COUNTIES UNTIL 800 PM EDT...
* At 716 PM EDT, National Weather Service meteorologists were
tracking strong thunderstorms along a line extending from near Big
Cypress Seminole Reservation to 6 miles north of Miccosukee Service
Plaza to 7 miles west of Intersection Alligator Alley And Miami
Canal. Movement was northeast at 40 mph.
* Winds in excess of 45 mph and funnel clouds possible with these
storms.
* Locations impacted include...
Mile Marker 30 On Alligator Alley, Holey Land Wildlife Refuge,
Intersection Alligator Alley And Miami Canal and Rotenberger
Wildlife Refuge.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2620 8032 2612 8062 2632 8073 2633 8088
2642 8088 2658 8065 2644 8041
TIME...MOT...LOC 2316Z 233DEG 36KT 2637 8093 2626 8082 2612 8074
Cohen/13Special weather statement, May 18, 7:27 PM EDT, 43 minutes before
Special Weather Statement
National Weather Service Miami FL
727 PM EDT Mon May 18 2020
FLZ071-072-190000-
Inland Broward County FL-Metro Broward County FL-
727 PM EDT Mon May 18 2020
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BROWARD COUNTY UNTIL 800
PM EDT...
* At 727 PM EDT, National Weather Service meteorologists were
tracking a strong thunderstorm near Intersection Alligator Alley
And Miami Canal, or 16 miles west of Pembroke Pines, moving east at
40 mph.
* Winds in excess of 45 mph possible with this storm.
* Locations impacted include...
Davie, Sunrise, Weston, Mile Marker 30 On Alligator Alley, East
Toll Gate On Alligator Alley, Intersection I-75 And U.S. 27 and
Markham Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2603 8062 2610 8062 2613 8063 2621 8032
2608 8033
TIME...MOT...LOC 2327Z 253DEG 37KT 2609 8059
CohenSpecial weather statement, May 18, 7:46 PM EDT, 24 minutes before
Special Weather Statement
National Weather Service Miami FL
746 PM EDT Mon May 18 2020
FLZ072>074-172>174-190030-
Coastal Broward County FL-Metro Broward County FL-
Metropolitan Miami Dade FL-Far South Miami-Dade County FL-
Inland Miami-Dade County FL-Coastal Miami Dade County FL-
746 PM EDT Mon May 18 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE AND SOUTHERN
BROWARD COUNTIES UNTIL 830 PM EDT...
* At 746 PM EDT, National Weather Service meteorologists were
tracking strong thunderstorms along a line extending from near
Miramar to near Florida City. Movement was east at 35 mph.
* Winds in excess of 45 mph possible with these storms.
* Locations impacted include...
Miami, Hialeah, Pembroke Pines, Hollywood, Miramar, Miami Beach,
Homestead, Coral Gables, Key Biscayne, South Miami, Surfside,
Hallandale, Homestead Miami Speedway, Black Point, Miami Gardens,
Turkey Point, Virginia Key, Kendall, North Miami, and Doral.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2602 8005 2538 8017 2539 8046 2573 8032
2589 8040 2599 8036
TIME...MOT...LOC 2346Z 267DEG 29KT 2599 8039 2541 8049
CohenSpecial weather statement, May 18, 7:48 PM EDT, 22 minutes before
Special Weather Statement
National Weather Service Miami FL
748 PM EDT Mon May 18 2020
FLZ067-190045-
Inland Palm Beach County FL-
748 PM EDT Mon May 18 2020
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PALM BEACH COUNTY UNTIL
845 PM EDT...
* At 748 PM EDT, National Weather Service meteorologists were
tracking strong thunderstorms along a line extending from near
Okeelanta to 12 miles east of Holey Land Wildlife Refuge to near
Intersection I-75 And U.S. 27. Movement was northeast at 40 mph.
* Wind gusts up to 50 mph possible with these storms.
* Locations impacted include...
Wellington, Royal Palm Beach, Parkland, Loxahatchee NWR,
Loxahatchee Groves, Lion Country Safari Park, The Acreage and
Mission Bay.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.
To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.
&&
LAT...LON 2633 8041 2643 8044 2658 8068 2680 8049
2677 8023 2633 8022
TIME...MOT...LOC 2348Z 223DEG 36KT 2653 8067 2648 8053 2622 8040
CohenThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 8:29 PM EDT | Special Marine Warning | MFL | 2 hr | |
| May 18, 10:51 PM EDT | Special Marine Warning | MFL | 54 min | |
| May 18, 11:43 PM EDT | Special Marine Warning | MFL | 47 min | |
| May 19, 3:54 AM EDT | Special Marine Warning | MFL | 66 min | |
| May 19, 4:56 AM EDT | Special Marine Warning | MFL | 64 min | |
| May 19, 5:55 AM EDT | Special Marine Warning | MFL | 65 min | |
| May 19, 10:59 AM EDT | Special Weather Statement | MFL | Miami-Dade | 46 min |
| May 19, 12:10 PM EDT | Special Weather Statement | MFL | Monroe | 80 min |
| May 19, 12:16 PM EDT | Special Marine Warning | MFL | 44 min | |
| May 19, 12:44 PM EDT | Special Marine Warning | MFL | 46 min | |
| May 19, 1:03 PM EDT | Special Marine Warning | MFL | 57 min | |
| May 19, 1:13 PM EDT | Special Weather Statement | MFL | Miami-Dade | 47 min |
| May 19, 1:24 PM EDT | Special Weather Statement | MFL | Collier | 51 min |
| May 19, 1:26 PM EDT | Special Marine Warning | MFL | 34 min | |
| May 19, 1:30 PM EDT | Special Weather Statement | MFL | Miami-Dade | 30 min |
| May 19, 1:39 PM EDT | Special Weather Statement | MFL | Miami-Dade | 36 min |
| May 19, 1:59 PM EDT | Special Weather Statement | MFL | Miami-Dade | 46 min |
| May 19, 2:00 PM EDT | Special Weather Statement | MFL | Palm Beach | 45 min |
| May 19, 2:01 PM EDT | Special Weather Statement | MFL | Miami-Dade | 44 min |
| May 19, 2:04 PM EDT | Special Marine Warning | MFL | 86 min | |
| May 19, 2:20 PM EDT | Special Weather Statement | MFL | Palm Beach | 55 min |
| May 19, 2:28 PM EDT | Special Weather Statement | MFL | Broward | 47 min |
| May 19, 2:29 PM EDT | Special Marine Warning | MFL | 46 min | |
| May 19, 2:30 PM EDT | Special Weather Statement | MFL | Broward | 45 min |
| May 19, 2:32 PM EDT | Special Marine Warning | MFL | 58 min | |
| May 19, 2:49 PM EDT | Special Weather Statement | MFL | Palm Beach | 56 min |
| May 19, 3:30 PM EDT | Special Marine Warning | MFL | 60 min | |
| May 19, 4:23 PM EDT | Special Weather Statement | MFL | Palm Beach | 52 min |
| May 19, 4:35 PM EDT | Special Marine Warning | MFL | 40 min | |
| May 19, 4:39 PM EDT | Special Marine Warning | MFL | 66 min | |
| May 19, 5:08 PM EDT | Special Marine Warning | MFL | 67 min | |
| May 19, 5:18 PM EDT | Special Marine Warning | MFL | 57 min | |
| May 19, 5:57 PM EDT | Special Marine Warning | MFL | 63 min | |
| May 19, 6:01 PM EDT | Special Marine Warning | MFL | 59 min | |
| May 19, 7:02 PM EDT | Special Marine Warning | MFL | 43 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2020Every severe thunderstorm warning in 2020
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.