Alert archive / Florida / Wind Chill Advisories in 2009
Wind Chill Advisory 2, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this wind chill advisory at Jan 20, 2009, 3:07 PM EST for 6 counties in Florida. It took effect at Jan 20, 2009, 10:00 PM EST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Jan 20, 2009, 3:07 PM EST (20:07 UTC)
- In effect from
- Jan 20, 2009, 10:00 PM EST
- Expired
- Jan 21, 2009, 10:00 AM EST
- In force
- 12 hr
- Issued by
- NWS Tampa Bay, FL
Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Pinellas County, FL, Polk County, FL, Sumter County, FL
The radar
The Tampa radar (KTBW), 49 km from the middle of the area, began a volume at 20:07 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
Tampa Bay, FL (KTBW), launched 12:00Z, 8.1 hours before the alert went out and 49 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
- 860 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Tampa Bay, FL wrote its last area forecast discussion before this wind chill advisory went out at Jan 20, 1:08 PM EST, 1 hour 59 minutes earlier.
Area forecast discussion, Jan 20, 1:08 PM EST, 1 hour 59 minutes before
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</html>Hazardous weather outlook, Jan 20, 5:48 AM EST, 9 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL 548 AM EST TUE JAN 20 2009 FLZ039-042-043-048>052-055>057-060>062-065-202300- LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK- MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE- 548 AM EST TUE JAN 20 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST FLORIDA. .DAY ONE...TODAY AND TONIGHT. ...WIND AND SEA IMPACT... STRONG NORTHWEST WINDS WILL PERSIST IN THE WAKE OF A COLD FRONT... RESULTING IN HAZARDOUS MARINE CONDITIONS THROUGH EARLY WEDNESDAY. NORTHWEST WINDS OF 20 TO 30 KNOTS WITH GUSTS TO GALE FORCE...ALONG WITH SEAS OF 6 TO 10 FEET NEARSHORE AND 10 TO 14 FEET OFFSHORE...CAN BE EXPECTED TODAY THROUGH EARLY WEDNESDAY. SMALL CRAFT ADVISORIES ARE IN EFFECT FOR TAMPA BAY AND GULF COASTAL WATERS. MARINERS...ESPECIALLY THOSE THAT ARE INEXPERIENCED OR OPERATING SMALLER VESSELS...SHOULD POSTPONE TRIPS UNTIL CONDITIONS IMPROVE. ...RIP CURRENT IMPACT... STRONG ONSHORE WINDS WILL PRODUCE FREQUENT DEADLY RIP CURRENTS TODAY. A RIP CURRENT IS A 10 TO 30 YARD WIDE CHANNEL OF WATER THAT CAN PULL EVEN A STRONG SWIMMER INTO DEEPER WATER. RESIDENTS AND VISITORS ARE URGED TO REMAIN OUT OF THE WATER UNTIL CONDITIONS IMPROVE. ...FIRE WEATHER IMPACT... DRY AIR AND GUSTY WINDS WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS TODAY ACROSS LEVY AND SUMTER COUNTIES. A RED FLAG WARNING IS IN EFFECT FOR THESE COUNTIES. ...EXCESSIVE COLD IMPACT... THE COLDEST AIR OF THE SEASON WITH WIDESPREAD FREEZING CONDITIONS WILL AFFECT MUCH OF WEST CENTRAL FLORIDA AND PORTIONS OF SOUTHWEST FLORIDA TONIGHT AND WEDNESDAY NIGHT. TEMPERATURES ARE EXPECTED TO DROP BELOW FREEZING FOR SEVERAL HOURS IN MANY AREAS BOTH TONIGHT. A HARD FREEZE WARNING IS IN EFFECT TONIGHT FOR LEVY...CITRUS...SUMTER...AND HERNANDO COUNTIES. OVERNIGHT LOWS WILL DROP INTO THE MID 20S IN THESE LOCATIONS. A FREEZE WARNING IS ALSO IN EFFECT FOR PASCO...HILLSBOROUGH AND POLK COUNTIES...WITH SEVERAL HOURS OF 28 TO 32 DEGREE TEMPERATURES EXPECTED. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. IN ADDITION...APPROPRIATE ACTION SHOULD BE TAKEN TO ENSURE OUTDOOR PETS AND WATER PIPES HAVE ADEQUATE PROTECTION FROM THE COLD TEMPERATURES. IN ADDITION...GUSTY NORTHWEST WINDS WILL MAKE IT FEEL EVEN COLDER. WIND CHILL VALUES EARLY WEDNESDAY MORNING WILL RANGE FROM THE MID TEENS NORTH OF TAMPA BAY TO THE MID 20S FROM TAMPA BAY SOUTH TO FORT MYERS AND EAST TO POLK AND HIGHLANDS COUNTIES. RESIDENTS VENTURING OUT TONIGHT SHOULD DRESS WARMLY. SEVERAL LAYERS OF CLOTHING WILL INSULATE YOU BETTER THAN A SINGLE COAT OR JACKET. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. ...WIND AND SEA IMPACT... WINDS OVER THE COASTAL WATERS WILL GRADUALLY DIMINISH WITH SUBSIDING SEAS DURING THE DAY WEDNESDAY. MARINERS SHOULD CONTINUE TO DELAY TRIPS UNTIL CONDITIONS IMPROVE LATER WEDNESDAY. ...RIP CURRENT IMPACT... STRONG RIP CURRENTS WILL STILL BE POSSIBLE THROUGH WEDNESDAY AFTERNOON AS THE WAVE ENERGY FROM THE RECENT GUSTY WINDS GRADUALLY DECREASES. SWIMMERS SHOULD STAY OUT OF THE WATER UNTIL CONDITIONS IMPROVE. ...FIRE WEATHER IMPACT... THE DRY AIR WILL REMAIN OVER WEST CENTRAL FLORIDA THOUGH THE END OF THE WEEK. RED FLAG WARNINGS WILL LIKELY BE NEEDED FOR MUCH IF NOT ALL OF WEST CENTRAL FLORIDA AND PARTS OF SOUTHWEST FLORIDA WEDNESDAY...THURSDAY...AND FRIDAY AFTERNOONS. ...EXCESSIVE COLD IMPACT... THE COLDEST AIR OF THE SEASON WITH WIDESPREAD FREEZING CONDITIONS WILL CONTINUE AFFECT WEST CENTRAL AND PORTIONS OF SOUTHWEST FLORIDA WEDNESDAY NIGHT INTO THURSDAY MORNING. LOWS THURSDAY MORNING ARE EXPECTED TO FALL TO THE LOW TO MID 20S NORTH OF TAMPA BAY...TO THE UPPER 20S TO AROUND 30 FROM HILLSBOROUGH AND POLK COUNTY SOUTH TO CHARLOTTE COUNTY...INLAND FROM THE COAST. A HARD FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING FOR LEVY...CITRUS...SUMTER...HERNANDO...AND PASCO COUNTIES. A FREEZE WATCH IS ALSO IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING FOR HILLSBOROUGH...POLK... MANATEE...SARASOTA...HARDEE...DE SOTO...HIGHLANDS...AND CHARLOTTE COUNTIES. ONCE AGAIN...THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. APPROPRIATE ACTION SHOULD BE TAKEN TO ENSURE OUTDOOR PETS AND WATER PIPES HAVE ADEQUATE PROTECTION FROM THE COLD TEMPERATURES. IN ADDITION TO THE COLD TEMPERATURES...HEAVY FROST IS EXPECTED ACROSS MOST OF WEST CENTRAL FLORIDA...INCLUDING SOME INTERIOR LOCATIONS IN PINELLAS AND LEE COUNTIES. FROST ADVISORIES WILL LIKELY BE ISSUED FOR WEDNESDAY NIGHT INTO THURSDAY MORNING. NOW IS THE TIME TO PREPARE FOR THESE COLD TEMPERATURES. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY. PETRO
The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 19, 10:45 PM EST | Tornado Warning | TBW | Citrus, Sumter | 15 min |
| Jan 19, 10:54 PM EST | Special Marine Warning | TBW | 66 min | |
| Jan 19, 11:10 PM EST | Severe Thunderstorm Warning | TBW | Hillsborough, Pinellas | 27 min |
| Jan 19, 11:28 PM EST | Special Marine Warning | TBW | 32 min | |
| Jan 20, 12:08 AM EST | Special Marine Warning | TBW | 52 min | |
| Jan 20, 1:02 AM EST | Special Marine Warning | TBW | 88 min | |
| Jan 20, 3:52 AM EST | Fire Weather Watch | TBW | DeSoto, Hardee, Highlands, Pinellas, Polk, Sumter | 33 hr |
| Jan 20, 3:52 AM EST | Red Flag Warning | TBW | Sumter | 13 hr |
| Jan 20, 4:02 AM EST | High Surf Advisory | TBW | Pinellas | 30 hr |
| Jan 20, 4:24 AM EST | Freeze Watch | TBW | DeSoto, Hardee, Highlands, Pinellas, Polk | 24 hr |
| Jan 20, 4:24 AM EST | Freeze Warning | TBW | DeSoto, Hardee, Highlands, Polk | 29 hr |
| Jan 20, 4:24 AM EST | Hard Freeze Watch | TBW | Sumter | 24 hr |
| Jan 20, 4:24 AM EST | Hard Freeze Warning | TBW | Sumter | 29 hr |
| Jan 20, 12:48 PM EST | Red Flag Warning | TBW | DeSoto, Hardee, Highlands, Pinellas, Polk, Sumter | 29 hr |
Nearby
Wind Chill Advisories in Florida, 2009Every wind chill 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.