Alert archive / Florida / Coastal Flood Statements in 2021
Coastal Flood Statement 5, NWS Miami, FL
NWS Miami, FL issued this coastal flood statement at Nov 12, 2021, 8:47 AM EST for Broward County, Miami-Dade County, Palm Beach County, Florida. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Nov 12, 2021, 8:47 AM EST (13:47 UTC)
- Expired
- Nov 12, 2021, 7:00 PM EST
- In force
- 10 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 13:48 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, 1.8 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
- 375 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
216 WHUS42 KMFL 121347 CFWMFL Coastal Hazard Message National Weather Service Miami FL 847 AM EST Fri Nov 12 2021 FLZ168-130000- /O.NEW.KMFL.CF.S.0005.211112T1347Z-211113T0000Z/ /O.CON.KMFL.RP.S.0036.000000T0000Z-211113T0000Z/ Coastal Palm Beach- 847 AM EST Fri Nov 12 2021 ...COASTAL FLOOD STATEMENT IN EFFECT UNTIL 7 PM EST THIS EVENING... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, isolated minor coastal flooding. * WHERE...Coastal Palm Beach County. * WHEN...Until 7 PM EST this evening. * IMPACTS...Some water on low lying roads and property especially during high tide. Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ FLZ172-173-130000- /O.NEW.KMFL.CF.S.0005.211112T1347Z-211113T0000Z/ Coastal Broward-Coastal Miami-Dade- 847 AM EST Fri Nov 12 2021 ...COASTAL FLOOD STATEMENT IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Isolated minor coastal flooding. * WHERE...Coastal Broward and Coastal Miami-Dade Counties. * WHEN...Until 7 PM EST this evening. * IMPACTS...Some water on low lying roads and property especially during high tide. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$ Torres-Vazquez/Frye
1 follow-up statement
169 WHUS42 KMFL 122033 CFWMFL Coastal Hazard Message National Weather Service Miami FL 333 PM EST Fri Nov 12 2021 FLZ168-130000- /O.CON.KMFL.CF.S.0005.000000T0000Z-211113T0000Z/ /O.CON.KMFL.RP.S.0036.000000T0000Z-211113T0000Z/ Coastal Palm Beach- 333 PM EST Fri Nov 12 2021 ...COASTAL FLOOD STATEMENT REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... ...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...For the High Rip Current Risk, dangerous rip currents. For the Coastal Flood Statement, isolated minor coastal flooding. * WHERE...Coastal Palm Beach County. * WHEN...Until 7 PM EST this evening. * IMPACTS...Some water on low lying roads and property. Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ FLZ172-173-130000- /O.CON.KMFL.CF.S.0005.000000T0000Z-211113T0000Z/ Coastal Broward-Coastal Miami-Dade- 333 PM EST Fri Nov 12 2021 ...COASTAL FLOOD STATEMENT REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING... * WHAT...Isolated minor coastal flooding. * WHERE...Coastal Broward and Coastal Miami-Dade Counties. * WHEN...Until 7 PM EST this evening. * IMPACTS...Some water on low lying roads and property. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 12, 10:57 AM EST | Special Weather Statement | MFL | Glades | 48 min |
| Nov 12, 11:05 AM EST | Special Weather Statement | MFL | Palm Beach | 40 min |
| Nov 12, 1:16 PM EST | Special Weather Statement | MFL | Palm Beach | 29 min |
Nearby
Coastal Flood Statements in Florida, 2021Every coastal flood statement 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.