Alert archive / Florida / Frost Advisories in 2009
Frost Advisory 1, NWS Miami, FL
NWS Miami, FL issued this frost advisory at Jan 14, 2009, 9:03 PM EST for Glades County, Florida. It took effect at Jan 15, 2009, 4:00 AM EST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jan 14, 2009, 9:03 PM EST (02:03 UTC)
- In effect from
- Jan 15, 2009, 4:00 AM EST
- Expired
- Jan 15, 2009, 7:40 AM EST
- In force
- 4 hr
- Issued by
- NWS Miami, FL
County Glades County, FL
The radar
The Melbourne radar (KMLB), 139 km from the middle of the area, began a volume at 02:05 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, 2.1 hours before the alert went out and 155 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
- 1196 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost 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 frost advisory went out at Jan 14, 6:35 PM EST, 2 hours 28 minutes earlier.
Area forecast discussion, Jan 14, 6:35 PM EST, 2 hours 28 minutes before
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</html>Hazardous weather outlook, Jan 14, 5:43 AM EST, 15 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA NATIONAL WEATHER SERVICE MIAMI FL 543 AM EST WED JAN 14 2009 FLZ063-066>075-168-172>174-150145- 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- 543 AM EST WED JAN 14 2009 ...COLD WIND CHILL VALUES EXPECTED TONIGHT... ...HAZARDOUS SEAS WILL PERSIST IN THE GULF STREAM... THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA. .DAY ONE...TODAY AND TONIGHT TEMPERATURES: A COLD AIRMASS WILL CONTINUE TO SPREAD SOUTHWARD OVER THE AREA IN THE WAKE OF A STRONG COLD FRONTAL PASSAGE ON TUESDAY EVENING. MINIMUM TEMPERATURES WILL RANGE FROM THE MID 30S NORTHWEST INTERIOR TO THE MID 50S ALONG THE IMMEDIATE SOUTHEAST COAST. THESE TEMPERATURES, WHEN COMBINED WITH A NORTH WIND OF 5 MPH OR LESS WILL RESULT IN APPARENT TEMPERATURES OF 30 TO 35 DEGREES ACROSS GLADES, HENDRY, AND NORTHERN INLAND COLLIER COUNTIES, WHERE PATCHY FROST IS ALSO POSSIBLE IN SHELTERED LOCATIONS. APPARENT TEMPERATURES OF 35 TO 45 DEGREES ARE ANTICIPATED ELSEWHERE, WITH THE EXCEPTION OF COASTAL AND METRO BROWARD AND MIAMI-DADE COUNTIES. WAVES: PERSISTENT NORTHERLY WINDS OVER THE ATLANTIC WILL LEAD TO A CONTINUATION OF HAZARDOUS SEAS IN THE GULF STREAM TODAY, AND A SMALL CRAFT ADVISORY IS IN EFFECT THROUGH MID-AFTERNOON. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A STRONGER SECONDARY COLD FRONT STILL APPEARS ON SCHEDULE TO MOVE ACROSS THE AREA ON THURSDAY NIGHT, WITH NORTHERLY WINDS INCREASING TO 20 KNOTS OR HIGHER OVER ALL OF THE LOCAL WATERS. THIS WILL LEAD TO A CONTINUATION OF HAZARDOUS MARINE CONDITIONS THROUGH AT LEAST THE SECOND HALF OF THE UPCOMING WEEKEND. WIND CHILL VALUES WILL REMAIN LOW THROUGH THE FORECAST PERIOD, WITH READING OF 35 TO 40 DEGREES COMMON ACROSS THE NORTHWEST INTERIOR, AND 40 TO 45 DEGREES ELSEWHERE WITH THE EXCEPTION OF THE IMMEDIATE SOUTHEAST COAST. THE COLDEST MORNINGS WILL LIKELY BE FRIDAY AND SATURDAY, WHEN WIND CHILLS IN THE MID TO UPPER 20S WILL BE POSSIBLE ACROSS GLADES, HENDRY, AND NORTHERN INLAND COLLIER COUNTIES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI. 70/DD
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 15, 6:09 AM EST | Fire Weather Watch | MFL | Collier | 24 hr |
| Jan 15, 6:09 AM EST | Red Flag Warning | MFL | Collier | 7 hr |
Nearby
Frost Advisories in Florida, 2009Every frost advisory 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.