Alert archive / Florida / Coastal Flood Statements in 2021
Coastal Flood Statement 2, NWS Key West, FL
NWS Key West, FL issued this coastal flood statement at Oct 9, 2021, 8:31 AM EDT for Monroe County, Florida. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- Oct 9, 2021, 8:31 AM EDT (12:31 UTC)
- Expired
- Oct 13, 2021, 4:47 AM EDT
- In force
- 4 days
- Issued by
- NWS Key West, FL
County Monroe County, FL
The radar
The Miami radar (KAMX), 51 km from the middle of the area, began a volume at 12:30 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, 0.5 hours before the alert went out and 69 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
- 103 J/kg
- Mixed-layer CIN
- -279 J/kg
- Mixed-layer LCL
- 1522 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
091 WHUS42 KKEY 091231 CFWKEY Coastal Hazard Message National Weather Service Key West FL 831 AM EDT Sat Oct 9 2021 FLZ076>078-101200- /O.NEW.KKEY.CF.S.0002.211009T1231Z-211010T1200Z/ Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- 831 AM EDT Sat Oct 9 2021 * WHAT...Minor saltwater flooding. * WHERE...Florida Keys. * WHEN...During the next higher high tide, which will be around and after midnight. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$ CLR
5 follow-up statements
335 WHUS42 KKEY 101148 CFWKEY Coastal Hazard Message National Weather Service Key West FL 748 AM EDT Sun Oct 10 2021 FLZ076>078-111000- /O.EXT.KKEY.CF.S.0002.000000T0000Z-211011T1000Z/ Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- 748 AM EDT Sun Oct 10 2021 * WHAT...Minor saltwater flooding during the times of high tide. * WHERE...Florida Keys. * WHEN...Through late tonight. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$ CLR
309 WHUS42 KKEY 110902 CFWKEY Coastal Hazard Message National Weather Service Key West FL 502 AM EDT Mon Oct 11 2021 FLZ076>078-111715- /O.EXT.KKEY.CF.S.0002.000000T0000Z-211012T1000Z/ Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- 502 AM EDT Mon Oct 11 2021 * WHAT...Minor saltwater flooding during the times of high tide. * WHERE...Florida Keys. * WHEN...Through late tonight. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$ LIW/LW
855 WHUS42 KKEY 111743 CFWKEY Coastal Hazard Message National Weather Service Key West FL 143 PM EDT Mon Oct 11 2021 FLZ076>078-121000- /O.CON.KKEY.CF.S.0002.000000T0000Z-211012T1000Z/ Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- 143 PM EDT Mon Oct 11 2021 * WHAT...Minor saltwater flooding during the times of high tide. * WHERE...Florida Keys. * WHEN...Through late tonight. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$ CLR
822 WHUS42 KKEY 120837 CFWKEY Coastal Hazard Message National Weather Service Key West FL 437 AM EDT Tue Oct 12 2021 FLZ076-120945- /O.CAN.KKEY.CF.S.0002.000000T0000Z-211012T1000Z/ Monroe Upper Keys- 437 AM EDT Tue Oct 12 2021 ...COASTAL FLOOD STATEMENT IS CANCELLED... $$ FLZ077-078-121645- /O.EXT.KKEY.CF.S.0002.000000T0000Z-211013T1000Z/ Monroe Middle Keys-Monroe Lower Keys- 437 AM EDT Tue Oct 12 2021 * WHAT...Minor saltwater flooding during the times of high tide. * WHERE...Middle and Lower Florida Keys. * WHEN...Through late tonight. * IMPACTS...Minor saltwater flooding of low elevation streets and lots is likely. Some storm drains will overflow, and some seawalls and docks will be overtopped. Boaters can expect less clearance under fixed bridges. Motorists should remember that persistent puddles around the times of high tide are almost certain to contain a mix of saltwater. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not drive through flooded roadways. && $$
982 WHUS42 KKEY 130847 CFWKEY Coastal Hazard Message National Weather Service Key West FL 447 AM EDT Wed Oct 13 2021 FLZ077-078-131000- /O.CAN.KKEY.CF.S.0002.000000T0000Z-211013T1000Z/ Monroe Middle Keys-Monroe Lower Keys- 447 AM EDT Wed Oct 13 2021 ...COASTAL FLOOD STATEMENT IS CANCELLED... $$
The office that day
Everything else NWS Key West, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 3:52 AM EDT | Special Marine Warning | KEY | 38 min | |
| Oct 9, 4:45 AM EDT | Special Marine Warning | KEY | 30 min | |
| Oct 9, 5:07 AM EDT | Special Marine Warning | KEY | 38 min | |
| Oct 9, 5:54 PM EDT | Special Marine Warning | KEY | 66 min | |
| Oct 9, 6:58 PM EDT | Special Marine Warning | KEY | 50 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.