Alert archive / Florida / Freeze Warnings in 2009
Freeze Warning 5, NWS Miami, FL
NWS Miami, FL issued this freeze warning at Feb 4, 2009, 3:40 AM EST for 5 counties in Florida. It took effect at Feb 5, 2009, 12:00 AM EST. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 4, 2009, 3:40 AM EST (08:40 UTC)
- In effect from
- Feb 5, 2009, 12:00 AM EST
- Expired
- Feb 5, 2009, 9:00 AM EST
- In force
- 9 hr
- Issued by
- NWS Miami, FL
Counties Broward County, FL, Collier County, FL, Miami-Dade County, FL, Monroe County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 55 km from the middle of the area, began a volume at 08:40 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 00:00Z, 8.7 hours before the alert went out and 50 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
- 2510 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning 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 freeze warning went out at Feb 4, 12:25 AM EST, 3 hours 15 minutes earlier.
Area forecast discussion, Feb 4, 12:25 AM EST, 3 hours 15 minutes before
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Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 4, 3:40 AM EST | Hard Freeze Warning | MFL | Collier, Glades, Hendry, Palm Beach | 29 hr |
| Feb 4, 3:53 AM EST | Wind Chill Watch | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more | 10 hr |
| Feb 4, 4:51 AM EST | Red Flag Warning | MFL | Broward, Collier, Miami-Dade, Monroe, Palm Beach | 38 hr |
| Feb 4, 1:32 PM EST | Freeze Watch | MFL | Collier, Glades, Hendry | 24 hr |
| Feb 4, 1:45 PM EST | Wind Chill Warning | MFL | Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more | 20 hr |
| Feb 4, 1:45 PM EST | Wind Chill Advisory | MFL | Broward, Miami-Dade | 19 hr |
Nearby
Freeze Warnings in Florida, 2009Every freeze warning in 2009
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.