Alert archive / Florida / Areal Flood Advisories in 2021
Areal Flood Advisory 101, NWS Miami, FL
NWS Miami, FL issued this areal flood advisory at Aug 3, 2021, 1:55 PM EDT for Broward County, Florida. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2021, 1:55 PM EDT (17:55 UTC)
- Expired
- Aug 3, 2021, 4:00 PM EDT
- In force
- 2 hr
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Broward County, FL
The radar
The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 17:56 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, 5.9 hours before the alert went out and 40 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
- 1794 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 932 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory 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 areal flood advisory went out at Aug 3, 1:48 PM EDT, 7 minutes earlier.
Area forecast discussion, Aug 3, 1:48 PM EDT, 7 minutes before
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</html>Hazardous weather outlook, Aug 3, 9:49 AM EDT, 4 hours 6 minutes before
Hazardous Weather Outlook for South Florida National Weather Service Miami FL 949 AM EDT Tue Aug 3 2021 AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676- 040200- 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- 949 AM EDT Tue Aug 3 2021 ...Scattered To Numerous Storms Expected With Heavy Rainfall... ...Strong Storms Possible this Afternoon... This hazardous weather outlook is for South Florida. .DAY ONE...TODAY AND TONIGHT Thunderstorms: Scattered to numerous thunderstorms are possible, mainly this afternoon and evening. Frequent lightning, heavy downpours, hail, funnel clouds, and gusty winds will be the primary hazards with the strongest thunderstorms. Flooding: Localized flooding is possible due heavy downpours from thunderstorms over low-lying and poor drainage areas, especially in the coastal metropolitan areas. Repeated rounds of excessive rainfall could lead to the risk of flooded roadways. Waterspouts: Waterspouts are possible across the South Florida waters today, especially in the Atlantic waters and Biscayne Bay. Temperatures: Heat index values will get up into the 100 to 105 range today over South Florida. Wind: A few storms could become strong, producing wind gusts in excess of 45 mph. Hail: The strongest storms this afternoon could produce hail. Tornadoes: A weak tornado or two are possible along eastern areas this afternoon. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY Scattered to numerous showers and thunderstorms will be possible across South Florida rest of this week into the weekend. In addition, a few strong storms could develop with locally gusty winds, waterspouts, heavy rainfall, and frequent lightning strikes. .SPOTTER INFORMATION STATEMENT... Widespread spotter activation is not anticipated, however individual spotters are encouraged to report high wind, hail and flooding to the National Weather Service forecast office in Miami. For more information...visit the National Weather Service in Miami website at www.weather.gov/miami. Fell
In the hours before
Special weather statement, Aug 3, 11:37 AM EDT, 2 hours 18 minutes before
Special Weather Statement National Weather Service Miami FL 1137 AM EDT Tue Aug 3 2021 FLZ067-068-071-072-168-031615- Inland Broward County FL-Coastal Palm Beach County FL- Metro Broward County FL-Inland Palm Beach County FL- Metro Palm Beach County FL- 1137 AM EDT Tue Aug 3 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL BROWARD AND SOUTH CENTRAL PALM BEACH COUNTIES UNTIL 1215 PM EDT... * At 1137 AM EDT, National Weather Service meteorologists were tracking a strong thunderstorm 7 miles north of Mile Marker 30 On Alligator Alley, or 17 miles west of Sunrise, moving northeast at 25 mph. * Winds in excess of 45 mph and funnel clouds possible with this storm. * Locations impacted include... Coral Springs, Boca Raton, Coconut Creek, Parkland, Loxahatchee NWR, Mission Bay, Boca Pointe, Boca Del Mar, Hamptons At Boca Raton, Whisper Walk, Boca West, Hillsboro Pines, South County Regional Park and Sandalfoot Cove. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 2617 8055 2628 8067 2664 8045 2636 8010 TIME...MOT...LOC 1537Z 232DEG 22KT 2625 8056 FELL
Special weather statement, Aug 3, 11:43 AM EDT, 2 hours 12 minutes before
Special Weather Statement National Weather Service Miami FL 1143 AM EDT Tue Aug 3 2021 FLZ067-068-071-072-168-172-031615- Inland Broward County FL-Coastal Broward County FL- Coastal Palm Beach County FL-Metro Broward County FL- Inland Palm Beach County FL-Metro Palm Beach County FL- 1143 AM EDT Tue Aug 3 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN BROWARD AND SOUTHERN PALM BEACH COUNTIES UNTIL 1215 PM EDT... * At 1143 AM EDT, National Weather Service meteorologists were tracking a strong thunderstorm over Sawgrass Mills Mall, or over Sunrise, moving northeast at 10 mph. * Winds in excess of 45 mph possible with this storm. * Locations impacted include... Fort Lauderdale, Coral Springs, Pompano Beach, Davie, Plantation, Sunrise, Boca Raton, Deerfield Beach, Tamarac, Margate, Lighthouse Point, Lauderdale-By-The-Sea, Lauderhill, Weston, Coconut Creek, Oakland Park, North Lauderdale, Lauderdale Lakes, Parkland and Wilton Manors. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 2606 8032 2623 8049 2642 8020 2625 7994 TIME...MOT...LOC 1543Z 235DEG 8KT 2615 8034 FELL
Special weather statement, Aug 3, 12:14 PM EDT, 1 hour 41 minutes before
Special Weather Statement National Weather Service Miami FL 1214 PM EDT Tue Aug 3 2021 FLZ067-068-071>074-168-172-031715- Inland Broward County FL-Coastal Broward County FL- Coastal Palm Beach County FL-Metro Broward County FL- Metropolitan Miami Dade FL-Inland Palm Beach County FL-Inland Miami- Dade County FL-Metro Palm Beach County FL- 1214 PM EDT Tue Aug 3 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL MIAMI-DADE... BROWARD AND SOUTHEASTERN PALM BEACH COUNTIES UNTIL 115 PM EDT... * At 1214 PM EDT, National Weather Service meteorologists were tracking strong thunderstorms along a line extending from near Loxahatchee NWR to near Coral Springs to near Intersection Krome And U.S. 27. Movement was northeast at 20 mph. * Winds in excess of 45 mph and funnel clouds possible with these storms. * Locations impacted include... Fort Lauderdale, Pembroke Pines, Hollywood, Miramar, Coral Springs, West Palm Beach, Pompano Beach, Davie, Plantation, Sunrise, Boca Raton, Deerfield Beach, Boynton Beach, Delray Beach, Tamarac, Wellington, Margate, Lake Worth, Lighthouse Point and Palm Beach. 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. Frequent cloud to ground lightning is occurring with these storms. If you can hear thunder, you are close enough to be struck! Seek a safe shelter inside a building or vehicle. 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. && LAT...LON 2672 8003 2603 8003 2590 8055 2658 8041 TIME...MOT...LOC 1614Z 212DEG 25KT 2649 8037 2629 8029 2596 8050 FELL
Local storm report, Aug 3, 12:35 PM EDT, 1 hour 20 minutes before
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</html>Special weather statement, Aug 3, 1:08 PM EDT, 47 minutes before
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</html>The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 9:55 PM EDT | Special Weather Statement | MFL | Hendry | 50 min |
| Aug 2, 10:48 PM EDT | Special Weather Statement | MFL | Collier | 42 min |
| Aug 3, 8:38 AM EDT | Special Marine Warning | MFL | 25 min | |
| Aug 3, 11:37 AM EDT | Special Weather Statement | MFL | Broward | 38 min |
| Aug 3, 11:43 AM EDT | Special Weather Statement | MFL | Broward | 32 min |
| Aug 3, 12:14 PM EDT | Special Weather Statement | MFL | Broward | 61 min |
| Aug 3, 12:22 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 23 min |
| Aug 3, 12:35 PM EDT | Special Marine Warning | MFL | 40 min | |
| Aug 3, 12:39 PM EDT | Areal Flood Advisory | MFL | Broward | 111 min |
| Aug 3, 1:08 PM EDT | Special Weather Statement | MFL | Palm Beach | 37 min |
| Aug 3, 1:14 PM EDT | Special Marine Warning | MFL | 46 min | |
| Aug 3, 1:40 PM EDT | Special Marine Warning | MFL | 35 min | |
| Aug 3, 2:53 PM EDT | Special Weather Statement | MFL | Hendry | 37 min |
| Aug 3, 4:15 PM EDT | Special Weather Statement | MFL | Collier | 60 min |
| Aug 3, 4:36 PM EDT | Areal Flood Advisory | MFL | Collier | 54 min |
| Aug 3, 5:07 PM EDT | Special Weather Statement | MFL | Glades | 38 min |
| Aug 3, 5:10 PM EDT | Special Marine Warning | MFL | 35 min | |
| Aug 3, 5:13 PM EDT | Special Weather Statement | MFL | Collier, Hendry | 47 min |
| Aug 3, 5:56 PM EDT | Special Weather Statement | MFL | Collier | 49 min |
| Aug 3, 6:00 PM EDT | Areal Flood Advisory | MFL | Miami-Dade | 4 hr |
| Aug 3, 6:07 PM EDT | Special Weather Statement | MFL | Broward | 38 min |
| Aug 3, 6:41 PM EDT | Special Weather Statement | MFL | Broward, Palm Beach | 34 min |
| Aug 3, 7:05 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 40 min |
| Aug 3, 7:06 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Palm Beach | 39 min |
| Aug 3, 7:25 PM EDT | Areal Flood Advisory | MFL | Broward, Miami-Dade | 2 hr |
| Aug 3, 7:26 PM EDT | Special Marine Warning | MFL | 64 min | |
| Aug 3, 7:37 PM EDT | Areal Flood Advisory | MFL | Broward, Miami-Dade | 113 min |
| Aug 3, 7:43 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 32 min |
| Aug 3, 7:50 PM EDT | Areal Flood Advisory | MFL | Palm Beach | 115 min |
| Aug 3, 7:50 PM EDT | Special Weather Statement | MFL | Palm Beach | 40 min |
Nearby
Areal Flood Advisories in Florida, 2021Every areal flood advisory in 2021
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.