Alert archive / Florida / Special Weather Statements in 2011
Special Weather Statement, NWS Miami, FL
NWS Miami, FL issued this special weather statement at Apr 28, 2011, 4:32 PM EDT for Hendry County, Florida. It was in force for 28 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
- Apr 28, 2011, 4:32 PM EDT (20:32 UTC)
- Expired
- Apr 28, 2011, 5:00 PM EDT
- In force
- 28 min
- Issued by
- NWS Miami, FL
County Hendry County, FL
The radar
The Miami radar (KAMX), 117 km from the middle of the area, began a volume at 20:35 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, 8.5 hours before the alert went out and 106 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
- 1823 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 716 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 28, 2:38 PM EDT, 1 hour 54 minutes earlier.
Area forecast discussion, Apr 28, 2:38 PM EDT, 1 hour 54 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIAMI FL 238 PM EDT THU APR 28 2011 .SHORT TERM... HIGH PRESSURE WILL CONTINUE TO SLOWLY SLIDE OFF TO THE EAST TONIGHT. ANY SHOWERS OR THUNDERSTORMS LEFT ACROSS THE AREA WILL BEGIN TO DIMINISH DURING THE EVENING HOURS SHORTLY AFTER SUNSET. A WEAKENING COLD FRONT WILL MOVE INTO SOUTH FLORIDA BY FRIDAY AFTERNOON. ALTHOUGH MOST OF THE FAVORABLE DYNAMICS FOR SEVERE WEATHER WILL REMAIN TO OUR NORTH, A FEW THUNDERSTORMS ARE POSSIBLE ACROSS THE AREA OUT AHEAD OF THE FRONT. THE BEST CHANCE FOR STRONG THUNDERSTORMS WILL BE ACROSS THE NORTHERN PORTION OF OUR CWA. THIS FRONT WILL EVENTUALLY DIMINISH JUST TO OUR SOUTH AND THERE WILL BE ENOUGH MOISTURE IN PLACE TO SUPPORT A CHANCE OF ISOLATED SHOWER ACTIVITY ACROSS SOUTHERN AREAS THROUGHOUT FRIDAY NIGHT. && .LONG TERM... MANY AREAS WILL REMAIN DRY ON SATURDAY, HOWEVER EXTREME SOUTHERN AREAS NEAR THE DIMINISHING FRONTAL BOUNDARY WILL STILL HAVE A SLIGHT CHANCE OF ISOLATED SHOWERS THROUGHOUT THE DAY. WINDS WILL SHIFT TO THE NORTHEAST AND INCREASE IN SPEED DURING THE DAY ON SATURDAY. THE EASTERN HALF OF SOUTH FLORIDA COULD SEE WINDS UP TO 15 TO 20 MPH WITH HIGHER GUSTS. WINDS ARE FORECASTED TO TURN TO THE EAST AND SOUTHEAST AFTER TUESDAY AS A RIDGE OF HIGH PRESSURE CONTINUES TO BUILD INTO THE AREA. .MARINE... WINDS WILL AVERAGE BETWEEN 10 TO 15 KNOTS OUT AHEAD OF A COLD FRONT THAT WILL MOVE THROUGH THE COASTAL WATERS ON FRIDAY. BEHIND THIS FRONT, WINDS WILL SHIFT TO THE NORTHEAST AND INCREASE TO 15 TO 20 MPH WITH HIGHER GUSTS ON SATURDAY. SEAS COULD APPROACH 6 FEET OVER PORTIONS OF THE GULF STREAM ON SATURDAY. && .FIRE WEATHER... AREAS OF SMOKE WILL AFFECT PORTIONS OF COLLIER, GLADES, AND HENDRY COUNTIES TONIGHT INTO TOMORROW. THIS WILL CREATE RESTRICTED VISIBILITIES ALONG WITH HAZARDOUS DRIVING CONDITIONS. WINDS MAY SHIFT TO THE NORTHEAST LATER ON FRIDAY INTO SATURDAY. THIS COULD RESULT IN ANY ONGOING FIRE BEHAVING DIFFERENTLY WITH THE SMOKE SPREADING IN A DIFFERENT DIRECTION. MINIMUM RELATIVE HUMIDITY VALUES ARE FORECASTED TO STAY ABOVE 35 PERCENT DURING THE DAY ON FRIDAY. ON SATURDAY, MINIMUM RELATIVE HUMIDITY VALUES COULD FALL BELOW 35 PERCENT FOR A FEW HOURS IN THE AFTERNOON ACROSS NORTHWESTERN INTERIOR SECTIONS. && .PRELIMINARY POINT TEMPS/POPS... WEST PALM BEACH 75 87 68 83 / 20 30 10 10 FORT LAUDERDALE 75 88 71 83 / 20 30 10 10 MIAMI 75 89 71 85 / 20 30 20 20 NAPLES 74 91 69 88 / 20 30 10 10 && .MFL WATCHES/WARNINGS/ADVISORIES... FL...NONE. AM...NONE. GM...NONE. && DISCUSSION/MARINE...55/CWC AVIATION/RADAR/FIRE...47/RGH
Hazardous weather outlook, Apr 28, 4:30 PM EDT, 2 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED NATIONAL WEATHER SERVICE MIAMI FL 430 PM EDT THU APR 28 2011 FLZ063-066>075-168-172>174-290845- 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- 430 PM EDT THU APR 28 2011 ...SMOKE MAY CAUSE REDUCED VISIBILITIES TONIGHT WEST... ...MODERATE RISK OF RIP CURRENTS ATLANTIC BEACHES... ...CHANCE OF EVENING THUNDERSTORMS MOSTLY NEAR LAKE OKEECHOBEE... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...THIS EVENING AND TONIGHT RIP CURRENTS: A SOUTHEAST WIND OF 10 TO 15 MPH COMBINED WILL CONTINUE TO RESULT IN A MODERATE RISK OF RIP CURRENTS AT THE ATLANTIC BEACHES OF PALM BEACH, BROWARD AND MIAMI-DADE COUNTIES. THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED THIS EVENING MAINLY INLAND ACROSS GLADES, HENDRY, PALM BEACH AND BROWARD COUNTIES. THE PRIMARY IMPACT FROM THE STRONGEST STORMS WILL BE OCCASIONAL LIGHTNING STRIKES, GUSTY WINDS TO 45 MPH, SMALL HAIL AND BRIEF HEAVY DOWNPOURS. TEMPERATURES: A LARGE PORTION OF INTERIOR SOUTH FLORIDA WILL REACH THE MID 90S THIS AFTERNOON AND THIS COMBINED WITH HIGH HUMIDITY WILL RESULT IN HEAT INDEX VALUES, OR APPARENT TEMPERATURES, OF 100 TO 105 DEGREES WITH VALUES JUST ABOVE 105 POSSIBLE IN SOME OF THE WARMEST SPOTS. VISIBILITY: MULTIPLE WILDFIRES CONTINUE ACROSS SOUTH FLORIDA TODAY. A FEW FIRES ARE CURRENTLY IN THE BIG CYPRESS PRESERVE, NEAR THE GOLDEN GATE COMMUNITY IN NAPLES, AND NEAR MUSE IN GLADES COUNTY. SMOKE FROM THESE FIRES COULD RESULT IN REDUCED VISIBILITIES THIS EVENING AND TONIGHT. THIS COULD ALSO CAUSE PROBLEMS FOR PERSONS WITH BREATHING ILLNESSES. FURTHERMORE, SHOULD THERE BE ANY WIND SHIFTS NEAR THESE FIRES TOWARD RESIDENTIAL AREAS EVACUATION ORDERS COULD BE PUT IN PLACE. SO RESIDENTS ARE ADVISED TO REMAIN ON THE ALERT WITH THE LOCAL AUTHORITIES. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE WILL BE A CHANCE FOR THUNDERSTORMS ON FRIDAY ACROSS ALL OF SOUTH FLORIDA AHEAD OF THE WEAKENING COLD FRONT. SOME OF THESE STORMS MAY BE CAPABLE OF PRODUCING GUSTY WINDS AND SMALL HAIL. A NORTHEAST TO EAST WIND OF 15 TO 20 MPH WILL DEVELOP ACROSS THE ATLANTIC BEACHES ON SATURDAY AND SUNDAY RESULTING IN AT LEAST A MODERATE RISK OF RIP CURRENTS. THE THREAT FOR RIP CURRENTS WILL CONTINUE INTO EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI. PS
In the hours before
Special weather statement, Apr 28, 12:35 PM EDT, 3 hours 57 minutes before
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</html>Special weather statement, Apr 28, 4:32 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 432 PM EDT THU APR 28 2011 FLZ066-282100- HENDRY FL- 432 PM EDT THU APR 28 2011 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SIGNIFICANT WEATHER ADVISORY FOR... CENTRAL HENDRY COUNTY * UNTIL 500 PM EDT * AT 426 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 10 MILES SOUTHEAST OF DEVILS GARDEN... MOVING NORTHEAST AT 5 MPH. * THE STORM WILL AFFECT... RURAL SOUTH EASTERN HENDRY COUNTY ALONG HIGHWAY 846. THE PRIMARY IMPACTS WILL BE FREQUENT TO EXCESSIVE LIGHTNING AND UP TO NICKEL SIZED HAIL. LIGHTNING IS THE NUMBER ONE WEATHER RELATED KILLER IN FLORIDA. TREES AND OPEN SHELTERS OFFER NO PROTECTION. SEEK SHELTER IN A SAFE BUILDING UNTIL THE STORM PASSES. LAT...LON 2660 8107 2649 8088 2635 8099 2642 8121 TIME...MOT...LOC 2031Z 219DEG 6KT 2648 8105 TINGLER
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 4:56 PM EDT | Special Weather Statement | MFL | Hendry | 34 min |
| Apr 28, 5:39 PM EDT | Special Weather Statement | MFL | Hendry | 36 min |
| Apr 28, 5:53 PM EDT | Special Weather Statement | MFL | Hendry | 22 min |
| Apr 28, 6:02 PM EDT | Special Weather Statement | MFL | Glades | 28 min |
| Apr 28, 6:33 PM EDT | Special Weather Statement | MFL | Glades | 27 min |
| Apr 28, 6:43 PM EDT | Severe Thunderstorm Warning | MFL | Glades | 41 min |
| Apr 28, 6:44 PM EDT | Special Marine Warning | MFL | 61 min |
Nearby
Special Weather Statements in Florida, 2011Every special weather statement in 2011
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.