Alert archive / Florida / Wind Advisories in 2021
Wind Advisory 6, NWS Miami, FL
NWS Miami, FL issued this wind advisory at Nov 20, 2021, 9:44 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Nov 20, 2021, 9:44 AM EST (14:44 UTC)
- Expired
- Nov 21, 2021, 12:00 AM EST
- In force
- 14 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Miami-Dade County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 59 km from the middle of the area, began a volume at 14:46 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, 2.7 hours before the alert went out and 39 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
- 56 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 799 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
947 WWUS72 KMFL 201444 NPWMFL URGENT - WEATHER MESSAGE National Weather Service Miami FL 944 AM EST Sat Nov 20 2021 FLZ168-172-173-210500- /O.NEW.KMFL.WI.Y.0006.211120T1444Z-211121T0500Z/ Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade- Including the cities of Jupiter, West Palm Beach, Boca Raton, Pompano Beach, Fort Lauderdale, Fort Lauderdale Beach, Hollywood Beach, Aventura, Miami Beach, Miami Shores, Downtown Miami, Cutler Bay, and Homestead Bayfront Park 944 AM EST Sat Nov 20 2021 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Frequent northeast wind gusts around 35 mph. * WHERE...Coastal Palm Beach, Coastal Broward and Coastal Miami- Dade Counties. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
2 follow-up statements
600 WWUS72 KMFL 202032 NPWMFL URGENT - WEATHER MESSAGE National Weather Service Miami FL 332 PM EST Sat Nov 20 2021 FLZ168-172-173-210445- /O.CON.KMFL.WI.Y.0006.000000T0000Z-211121T0500Z/ Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade- Including the cities of Jupiter, West Palm Beach, Boca Raton, Pompano Beach, Fort Lauderdale, Fort Lauderdale Beach, Hollywood Beach, Aventura, Miami Beach, Miami Shores, Downtown Miami, Cutler Bay, and Homestead Bayfront Park 332 PM EST Sat Nov 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Frequent northeast wind gusts around 35 mph. * WHERE...Coastal Broward, Coastal Palm Beach and Coastal Miami- Dade Counties. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
608 WWUS72 KMFL 210455 NPWMFL URGENT - WEATHER MESSAGE National Weather Service Miami FL 1155 PM EST Sat Nov 20 2021 FLZ168-172-173-210600- /O.EXP.KMFL.WI.Y.0006.000000T0000Z-211121T0500Z/ Coastal Palm Beach-Coastal Broward-Coastal Miami-Dade- Including the cities of Jupiter, West Palm Beach, Boca Raton, Pompano Beach, Fort Lauderdale, Fort Lauderdale Beach, Hollywood Beach, Aventura, Miami Beach, Miami Shores, Downtown Miami, Cutler Bay, and Homestead Bayfront Park 1155 PM EST Sat Nov 20 2021 ...WIND ADVISORY WILL EXPIRE AT MIDNIGHT EST TONIGHT... The windy easterly winds have decrease to 10 to 15 knots late this evening and should continue to decrease through rest of tonight, as high pressure continues to move further east into the Atlantic waters and away from South Florida. Therefore, the Wind Advisory will be allow to expire at Midnight EST tonight for the east coastal area of South Florida. $$
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 3:31 PM EST | High Surf Advisory | MFL | Palm Beach | 15 hr |
Nearby
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.