Alert archive / Florida / Wind Chill Advisories in 2018
Wind Chill Advisory 1, NWS Melbourne, FL
NWS Melbourne, FL issued this wind chill advisory at Jan 1, 2018, 2:24 PM EST for 4 counties in Florida. It took effect at Jan 1, 2018, 7:11 PM EST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Jan 1, 2018, 2:24 PM EST (19:24 UTC)
- In effect from
- Jan 1, 2018, 7:11 PM EST
- Expired
- Jan 2, 2018, 9:00 AM EST
- In force
- 14 hr
- Issued by
- NWS Melbourne, FL
Counties Lake County, FL, Orange County, FL, Seminole County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 100 km from the middle of the area, began a volume at 19:23 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
Cape Canaveral, FL (KXMR), launched 12:00Z, 7.4 hours before the alert went out and 90 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
- 1261 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 208 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
474 WWUS42 KMLB 011924 WSWMLB URGENT - WINTER WEATHER MESSAGE National Weather Service Melbourne FL 224 PM EST Mon Jan 1 2018 FLZ044-144-021400- /O.NEW.KMLB.WC.Y.0001.180102T0800Z-180102T1400Z/ Northern Lake County-Southern Lake County- Including the cities of Eustis, Mount Dora, Leesburg, Tavares, Clermont, Mascotte, and Groveland 224 PM EST Mon Jan 1 2018 ...WIND CHILL ADVISORY IN EFFECT FROM 3 AM TO 9 AM EST TUESDAY... The National Weather Service in Melbourne has issued a Wind Chill Advisory, which is in effect from 3 AM to 9 AM EST Tuesday. * WIND CHILL VALUES...The combination with winds and colder temperatures will bring wind chill readings to 30 to 33 degrees by daybreak. * OTHER IMPACTS...Cold temperatures will continue into mid day Tuesday with highs only climbing through the 40s. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Chill Advisory means that very cold air and strong winds will combine to generate low wind chills. If you must venture outdoors...make sure you wear a hat and gloves. && $$
1 follow-up statement
508 WWUS42 KMLB 020011 WSWMLB URGENT - WINTER WEATHER MESSAGE National Weather Service Melbourne FL 711 PM EST Mon Jan 1 2018 FLZ041-021400- /O.EXB.KMLB.WC.Y.0001.180102T0011Z-180102T1400Z/ Inland Volusia County- Including the cities of Debary, Deland, and Deltona 711 PM EST Mon Jan 1 2018 ...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM EST TUESDAY... * WHAT...The combination of gusty winds and colder temperatures will bring wind chill readings to 30 to 33 degrees. * WHERE...Inland Volusia County County. * WHEN...Now to 9 AM Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Chill Advisory means that cold air and the wind will combine to create low wind chills. Make sure you dress appropriately for the cold weather, including a coat, a hat and gloves. $$ FLZ045-046-021400- /O.EXB.KMLB.WC.Y.0001.180102T0500Z-180102T1400Z/ Orange-Seminole- Including the cities of Apopka, Maitland, Orlando, Winter Park, Union Park, Altamonte Springs, Casselberry, Oviedo, Sanford, and Winter Springs 711 PM EST Mon Jan 1 2018 ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EST TUESDAY... * WHAT...The combination of gusty winds and colder temperatures will bring wind chill readings to 30 to 33 degrees. * WHERE...Orange and Seminole County. * WHEN...Midnight to 9 AM Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Chill Advisory means that cold air and the wind will combine to create low wind chills. Make sure you dress appropriately for the cold weather, including a coat, a hat and gloves. $$ FLZ044-144-021400- /O.EXT.KMLB.WC.Y.0001.180102T0011Z-180102T1400Z/ Northern Lake County-Southern Lake County- Including the cities of Eustis, Mount Dora, Leesburg, Tavares, Clermont, Mascotte, and Groveland 711 PM EST Mon Jan 1 2018 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 9 AM EST TUESDAY... * WHAT...The combination of gusty winds and colder temperatures will bring wind chill readings to 25 to 33 degrees. * WHERE...Northern Lake County and Southern Lake County County. * WHEN...Now to 9 AM Tuesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Wind Chill Advisory means that cold air and the wind will combine to create low wind chills. Make sure you dress appropriately for the cold weather, including a coat, a hat and gloves. $$
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Melbourne, FL wrote its last area forecast discussion before this wind chill advisory went out at Jan 1, 9:05 AM EST, 5 hours 19 minutes earlier.
Area forecast discussion, Jan 1, 9:05 AM EST, 5 hours 19 minutes before
East Central Florida Forecast Discussion
National Weather Service Melbourne FL
905 AM EST Mon Jan 1 2018
.DISCUSSION...
...Colder than normal with a potential for freezing late in the
week...
...Very hazardous boating conditions through Wed...
Currently...Latest sfc map shows an advancing cold front is nearing
the Volusia/Lake Co borders with much colder air in the wake of the
feature poised to enter northernmost central Florida later this AM.
Areas of light pcpn are quickly moving across the I-4 corridor with
sct light to moderate pcpn quickly advancing towards the remainder
of the area from the gulf coast.
Today-Tonight...The cold front near our northern counties will slide
slowly southward through the area today. A slug of quite high
moisture (precipitable water 1.4 to 1.5 inches) is still forecast to
advance eastward from the Gulf of Mexico across the south half of
the area just ahead of the front, where the GFS shows the highest
rainfall amounts. Rainfall this morning will be light with some
light to moderate showers possible during the aftn as the energetic
mid/upr feature passes ovhd and enters the Atlc later today.
Extensive cloud cover, rain cooling and cold advection working
southward will result in a raw day with high temps only near 50 in
the far north. Highs should reach the mid 60s in the south and
possibly near 70 in Martin county before the low clouds roll in and
precip commences. Temps are even shown falling slightly this
afternoon. Behind the front, north winds will pick up late in the
day to 15 to 20 mph and gusty. This will likely occur a little after
sunset along the Treasure Coast.
Low clouds will continue overnight and some light precip may linger
in the north as drier air advects in at the lowest levels. A
brisk northeast to north flow in the lower levels will bring a
chance of showers to the coast, with likely PoPs continuing along
the Treasure Coast. Low temps are shown having a rather large
range, from the mid 30s in the northwest to the mid-upper 50s
along the Treasure Coast. With northerly winds up to 10-15 mph
during the overnight hours, a wind chill advisory will be necessary
for portions of the north. Will evaluate ltst 12Z suite of guid
before determining counties in tonights advisory.
&&
.AVIATION...
VFR ceilings are overspreading the area but as low level moistening
continues early this morning, these ceilings will lower and become
IFR conds over the north (I-4 and metro Orlando) will spread over
the remainder of the area into afternoon. The low ceilings will
linger into tonight, but should become MVFR northward from about ISM-
MCO-TIX. Gusty north winds 20-25 knots should kick in LEE-DAB by 18-
21z and towards 00z or after south of there.
&&
.MARINE...
Today-Tonight...Cold front is forecast to sag into the northern
zones by late morning and reach the southern waters late today.
There has been little change with guidance, which shows 25-30 knot
north/northeast winds building down behind the boundary. Small Craft
Advisory incrementally goes into effect from N-S with a Gale Warning
starting at 21z north of Sebastian Inlet, and 02/03z south of
Sebastian.
&&
.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...Small Craft Advisory from 10 AM this morning to 4 PM EST this
afternoon for Flagler Beach to Volusia-Brevard County Line
0-20 nm-Flagler Beach to Volusia-Brevard County Line 20-60
nm.
Gale Warning from 4 PM this afternoon to 4 PM EST Tuesday for
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
Flagler Beach to Volusia-Brevard County Line 20-60 nm-
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.
Small Craft Advisory from 1 PM to 4 PM EST this afternoon for
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
Volusia-Brevard County Line to Sebastian Inlet 20-60 nm.
Small Craft Advisory from 4 PM this afternoon to 10 PM EST this
evening for Sebastian Inlet to Jupiter Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm.
Gale Warning from 10 PM this evening to 4 PM EST Tuesday for
Sebastian Inlet to Jupiter Inlet 0-20 nm-Sebastian Inlet to
Jupiter Inlet 20-60 nm.
&&
JP/DWSHazardous weather outlook, Jan 1, 5:17 AM EST, 9 hours 7 minutes before
Hazardous Weather Outlook National Weather Service Melbourne FL 517 AM EST Mon Jan 1 2018 AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141- 144-147-020000- Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia- Brevard County Line to Sebastian Inlet 0-20 nm- Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia- Brevard County Line 20-60 nm-Volusia- Brevard County Line to Sebastian Inlet 20-60 nm- Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County- Northern Lake County-Orange-Seminole-Southern Brevard County- Osceola-Indian River-Okeechobee-St. Lucie-Martin- Coastal Volusia County-Southern Lake County- Northern Brevard County- 517 AM EST Mon Jan 1 2018 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA. .DAY ONE...TODAY AND TONIGHT. .HIGH WIND IMPACT... Gusty north winds will kick in behind a cold front today and into this evening. Wind gusts to 30 or 35 mph will be possible along the Volusia county coast this afternoon and evening. Gusts 25 to 30 mph could also reach inland to the Interstate 4 corridor late this afternoon and evening, as well as the Space and Treasure Coasts this evening and overnight. .EXCESSIVE COLD IMPACT... Wind chill values tonight are forecast to drop into the 30s near and west of Interstate 4, with some upper 20s possible late. A wind chill advisory may be necessary for some portions of that area. Make sure to dress appropriately for these much colder than normal conditions. .RIP CURRENT IMPACT... Gusty north winds building down the coast today will produce rough surf and a strong longshore current by this afternoon along the beaches of Volusia and Brevard counties. Strong rip currents are also likely near piers, jetties and reefs. Only enter the surf near a lifeguard. .WIND AND SEA IMPACT... Very hazardous boating conditions will develop behind a cold front that moves south into the Volusia coastal waters by late this morning and reaches the Treasure Coast waters this evening. Small Craft Advisories will go into effect late this morning and during the afternoon, then become Gale Warnings over all of the waters late this afternoon and evening. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. Hazardous beach and boating conditions will continue through mid week due to an extended period of gusty northeast to north winds. Large breaking waves and higher than normal astronomical tides could lead to minor beach erosion. There is also a potential for freezing temperatures late in the week due to a strengthening low pressure center offshore that will lift northeast and pull very cold air down into central Florida. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. Lascody
In the hours before
Local storm report, Jan 1, 2:15 PM EST, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
National Weather Service Melbourne FL
215 PM EST MON JAN 01 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0130 PM NON-TSTM WND GST 3 E HAULOVER CANAL 28.74N 80.70W
01/01/2018 M46.00 MPH Brevard FL OTHER FEDERAL
US AIR FORCE WIND TOWER 0019 MEASURED A PEAK WIND GUST OF
40KT / 46MPH FROM THE NORTH.
0130 PM NON-TSTM WND GST 4 NNE HAULOVER CANAL 28.80N 80.74W
01/01/2018 M43.00 MPH Volusia FL OTHER FEDERAL
US AIR FORCE WIND TOWER 0022 MEASURED A PEAK WIND GUST OF
37KT / 43MPH FROM THE NORTH.
0200 PM NON-TSTM WND GST 3 SW PLAYALINDA BEACH 28.63N 80.66W
01/01/2018 M39.00 MPH Brevard FL OTHER FEDERAL
US AIR FORCE WIND TOWER 3132 MEASURED A PEAK WIND GUST OF
34KT / 39MPH FROM THE NORTH-NORTHWEST.
&&
KRThe office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 1, 4:23 AM EST | Gale Warning | MLB | 36 hr | |
| Jan 1, 4:23 AM EST | Small Craft Advisory | MLB | 15 hr | |
| Jan 1, 4:33 AM EST | Beach Hazards Statement | MLB | Volusia | 11 hr |
| Jan 1, 2:32 PM EST | High Surf Advisory | MLB | Volusia | 61 hr |
Nearby
Wind Chill Advisories in Florida, 2018Every wind chill advisory in 2018
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.