Alert archive / Florida / Special Weather Statements in 2012

Special Weather Statement, NWS Tampa Bay, FL

December 29, 2012Levy County, Florida

NWS Tampa Bay, FL issued this special weather statement at Dec 29, 2012, 2:13 AM EST for Levy County, Florida. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 29, 2012, 2:13 AM EST (07:13 UTC)
Expired: Dec 29, 2012, 3:00 AM EST
In force: 47 min
Issued by: NWS Tampa Bay, FL

County Levy County, FL

The radar

The Jacksonville radar (KJAX), 173 km from the middle of the area, began a volume at 07:17 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

Jacksonville, FL (KJAX), launched 00:00Z, 7.2 hours before the alert went out and 174 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1314 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 293 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Dec 28, 8:10 PM EST, 6 hours 3 minutes earlier.

Area forecast discussion, Dec 28, 8:10 PM EST, 6 hours 3 minutes before

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Hazardous weather outlook, Dec 28, 5:44 AM EST, 20 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
544 AM EST FRI DEC 28 2012

FLZ039-042-043-048>052-055>057-060>062-065-GMZ830-850-853-856-870-
873-876-282245-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DESOTO-CHARLOTTE-LEE-
TAMPA BAY WATERS-TARPON SPRINGS TO SUWANNEE RIVER OUT 20 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 NM-
TARPON SPRINGS TO SUWANNEE RIVER OUT 20 TO 60 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 TO 60 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 TO 60 NM-
544 AM EST FRI DEC 28 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST
FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
AN AREA OF LOW PRESSURE WILL MOVE ACROSS LOUISIANA TODAY AND
ACROSS GEORGIA TONIGHT. SHOWERS AND THUNDERSTORMS WILL DEVELOP
AHEAD OF THIS SYSTEM LATER TODAY AND TONIGHT. SEVERE THUNDERSTORMS
ARE NOT EXPECTED.

...RIP CURRENT IMPACT...
INCREASING SOUTH TO SOUTHWESTERLY WINDS AHEAD OF A COLD FRONT WILL
RESULT IN AN ENHANCED RISK OF RIP CURRENTS LATER TONIGHT.

...WIND AND SEA IMPACT...
WINDS WILL SHIFT TO THE SOUTH AND SOUTHWEST AND INCREASE TO 15 TO
20 KNOTS OVERNIGHT. SEAS WILL BUILD UP TO 5 FEET OFFSHORE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION ON SATURDAY.
THUNDERSTORMS ARE LIKELY...BUT ARE EXPECTED TO STAY BELOW SEVERE
LIMITS. SOME MAY BE ACCOMPANIED BY STRONG GUSTY WINDS AND DEADLY
LIGHTNING.

GUSTY NORTHWESTERLY WINDS BEHIND THE COLD FRONT WILL RESULT IN
ROUGH SEAS...HIGH SURF AND DANGEROUS RIP CURRENTS THROUGH THE
WEEKEND.

THE NEXT WEATHER SYSTEM SHOULD APPROACH THE AREA WEDNESDAY NIGHT
OR THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

JILLSON

In the hours before

Special weather statement, Dec 29, 2:13 AM EST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
213 AM EST SAT DEC 29 2012

FLZ039-290800-
LEVY-
213 AM EST SAT DEC 29 2012

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR LEVY COUNTY FOR
STRONG THUNDERSTORMS WITH STRONG WIND GUSTS VALID UNTIL 300 AM EST...

AT 210 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES
STRONG THUNDERSTORMS LOCATED NEAR CEDAR KEY...MOVING NORTHEAST AT 60
MPH WILL AFFECT CEDAR KEY...OTTER CREEK AND BRONSON.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED WHICH CAN CAUSE UNSECURED
OBJECTS TO BLOW AROUND...SNAP TREE LIMBS AND CAUSE POWER OUTAGES.
SMALL HAIL IS ALSO POSSIBLE WITH THIS STORM. FREQUENT LIGHTNING IS
EXPECTED. TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT OUTSIDE...
FIND A LOW SPOT...AND STAY AWAY FROM TALL OBJECTS.

&&

LAT...LON 2954 8265 2954 8256 2948 8255 2949 8241
      2915 8287 2916 8298 2911 8302 2914 8308
      2909 8306 2909 8308 2910 8309 2914 8310
      2918 8307 2923 8310 2957 8269 2957 8266
TIME...MOT...LOC 0713Z 228DEG 53KT 2917 8302

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 29, 2:16 AM EST	Special Marine Warning	TBW		59 min
Dec 29, 3:55 AM EST	Special Marine Warning	TBW		95 min
Dec 29, 4:39 AM EST	Beach Hazards Statement	TBW	Pinellas	35 hr
Dec 29, 4:57 AM EST	Small Craft Advisory	TBW		35 hr
Dec 29, 2:10 PM EST	Freeze Warning	TBW		18 hr
Dec 29, 2:15 PM EST	Wind Chill Advisory	TBW	Hardee, Highlands, Polk	18 hr

Nearby

Special Weather Statements in Florida, 2012 Every special weather statement in 2012

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.