Alert archive / Florida / Wind Advisories in 2021
Wind Advisory 1, NWS Key West, FL
NWS Key West, FL issued this wind advisory at Feb 1, 2021, 10:18 AM EST for Monroe County, Florida. It took effect at Feb 1, 2021, 1:00 PM EST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Feb 1, 2021, 10:18 AM EST (15:18 UTC)
- In effect from
- Feb 1, 2021, 1:00 PM EST
- Expired
- Feb 1, 2021, 10:40 PM EST
- In force
- 10 hr
- 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 15:20 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, 3.3 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1393 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 176 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
070 WWUS72 KKEY 011518 NPWKEY URGENT - WEATHER MESSAGE National Weather Service Key West FL 1018 AM EST Mon Feb 1 2021 FLZ076-077-020400- /O.NEW.KKEY.WI.Y.0001.210201T1800Z-210202T0400Z/ Monroe Upper Keys-Monroe Middle Keys- Including the Communities of Key Largo and Marathon 1018 AM EST Mon Feb 1 2021 ...WIND ADVISORY IN EFFECT THROUGH THIS EVENING FOR THE MIDDLE AND UPPER KEYS... * WHAT...Northwest winds 20 to 30 mph with frequent gusts up to 35 mph expected. * WHERE...Upper and Middle Florida Keys. * WHEN...The strongest winds will come this afternoon and early this evening. * IMPACTS...A Wind Advisory means that sustained winds of 30 to 39 mph, or frequent gusts in excess of 35 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Wind gusts along the Overseas Highway will be highest on bridges and overpasses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should be alert for sudden gusts of wind, especially on bridges, which may cause you to lose control of your vehicle. Use extra caution. Residents should secure trash cans, lawn furniture, and other loose or lightweight outdoor objects. && $$
2 follow-up statements
271 WWUS72 KKEY 012030 NPWKEY URGENT - WEATHER MESSAGE National Weather Service Key West FL 330 PM EST Mon Feb 1 2021 FLZ076-077-020400- /O.CON.KKEY.WI.Y.0001.000000T0000Z-210202T0400Z/ Monroe Upper Keys-Monroe Middle Keys- Including the Communities of Key Largo and Marathon 330 PM EST Mon Feb 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM EST THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with frequent gusts up to 35 mph expected. * WHERE...Upper and Middle Florida Keys. * WHEN...The strongest winds will occur through the early evening hours. * IMPACTS...A Wind Advisory means that sustained winds of 30 to 39 mph, or frequent gusts in excess of 35 mph are expected. Winds this strong can make driving difficult, especially for high profile vehicles. Wind gusts along the Overseas Highway will be highest on bridges and overpasses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should be alert for sudden gusts of wind, especially on bridges, which may cause you to lose control of your vehicle. Use extra caution. Residents should secure trash cans, lawn furniture, and other loose or lightweight outdoor objects. && $$
915 WWUS72 KKEY 020340 NPWKEY URGENT - WEATHER MESSAGE National Weather Service Key West FL 1040 PM EST Mon Feb 1 2021 FLZ076-077-020445- /O.CAN.KKEY.WI.Y.0001.000000T0000Z-210202T0400Z/ Monroe Upper Keys-Monroe Middle Keys- Including the Communities of Key Largo and Marathon 1040 PM EST Mon Feb 1 2021 ...WIND ADVISORY IS CANCELLED... Northwest winds have decreased below Wind Advisory. Therefore the wind advisory has been cancelled. However, expect windy conditions to continue through the night, with a slow reduction in speed. $$
The office that day
Everything else NWS Key West, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 1, 4:27 AM EST | Small Craft Advisory | KEY | 53 hr | |
| Feb 1, 9:08 AM EST | Special Marine Warning | KEY | 67 min | |
| Feb 1, 9:59 AM EST | Special Marine Warning | KEY | 18 min | |
| Feb 1, 10:18 AM EST | Gale Warning | KEY | 12 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.