Alert archive / Florida / Flood Watches in 2012

Flood Watch 5, NWS Tampa Bay, FL

June 26, 2012Pinellas County, Polk County, Sumter County, Florida

NWS Tampa Bay, FL issued this flood watch at Jun 26, 2012, 12:43 PM EDT for Pinellas County, Polk County, Sumter County, Florida. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Jun 26, 2012, 12:43 PM EDT (16:43 UTC)
Expired
Jun 27, 2012, 5:45 AM EDT
In force
17 hr
Issued by
NWS Tampa Bay, FL
Flood severity
None

Counties Pinellas County, FL, Polk County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 58 km from the middle of the area, began a volume at 16:43 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, 4.7 hours before the alert went out and 167 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-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2012-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 124 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2012-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
124 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
907 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
182 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Jun 26, 4:38 AM EDT, 8 hours 5 minutes earlier.

Area forecast discussion, Jun 26, 4:38 AM EDT, 8 hours 5 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
438 AM EDT TUE JUN 26 2012

.SHORT TERM (TODAY - THURSDAY)...NOT MUCH HAS CHANGED WITH REGARDS
TO TROPICAL STORM DEBBY WHICH IS STILL MOVING VERY LITTLE IN THE
NORTHEAST GULF OF MEXICO. TROPICAL STORM DEBBY IS FORECAST TO MOVE
SLOWLY EAST-NORTHEASTWARD...APPROACHING THE NATURE COAST ON
WEDNESDAY THEN WEAKENING TO A TROPICAL DEPRESSION OVER NORTH
FLORIDA WEDNESDAY NIGHT. THIS WILL LEAVE OUR REGION IN A GENERAL
SOUTH TO SOUTHWEST WIND FLOW TODAY AND WEDNESDAY SHIFTING TO A
WESTERLY WIND AS THE STORM TRAVERSES FLORIDA WEDNESDAY NIGHT AND
THURSDAY.

THE MAIN FORECAST ISSUES CONTINUE TO BE COASTAL FLOODING...INLAND
FLOODING AND THE POTENTIAL FOR ISOLATED TORNADOES. BANDS OF SHOWERS
HAVE BEEN SLOWLY BUT STEADILY INCREASING IN ORGANIZATION
OVERNIGHT...SO IT LOOKS LIKE WE COULD SEE MORE HEAVY RAINFALL IN
PLACES TODAY. WIND PROFILES WILL STILL SUPPORT ROTATING UPDRAFTS
WITH A TORNADO THREAT...BUT THE MAIN THREAT FOR TORNADOES MAY BE
AFTER THE SUN HAS BEEN UP FOR A WHILE AND SURFACE TEMPERATURES
CLIMB INTO THE 80S.

COASTAL FLOODING IS LIKELY TO REACH MODERATE LEVELS DURING THIS
MORNINGS HIGH TIDES. WINDS HAVE MORE OF AN ONSHORE COMPONENT TODAY
THAN THEY DID YESTERDAY...WHICH MAY ADD ANOTHER FOOT COMPARED TO
YESTERDAYS MAX HEIGHTS.

.LONG TERM (THURSDAY NIGHT-MONDAY)...
DEBBY WILL BE MOVING OUT INTO THE ATLANTIC THURSDAY NIGHT AND
FRIDAY WITH A MID/UPPER LEVEL HIGH PRESSURE RIDGE FORECAST TO
BUILD OVER THE STATE DURING THE WEEKEND. MEANWHILE AT THE SURFACE
THE RIDGE AXIS WILL REMAIN ACROSS THE FLORIDA STRAITS AND THIS
WILL CONTINUE A WESTERLY FLOW ACROSS THE REGION. SOME DRIER AIR
WILL ALSO BE MOVING INTO THE AREA IN THE MID AND UPPER LEVELS AND
THEREFORE RAIN CHANCES ARE EXPECTED TO DIMINISH TO 20 TO 30
PERCENT DURING THE PERIOD WITH BEST CHANCES OVER THE EASTERN HALF
OF THE FLORIDA PENINSULA. TEMPERATURES WILL WARM TO ABOVE NORMAL
AS THE MID/UPPER LEVEL RIDGE SETTLES OVER THE AREA WITH DAYTIME
HIGHS CLIMBING MOSTLY INTO THE LOWER TO MID 90S...EXCEPT RIGHT
ALONG THE COAST WHERE READINGS SHOULD STAY IN THE 80S. OVERNIGHT
LOWS WILL REMAIN NEAR TO A FEW DEGREES ABOVE NORMAL THANKS TO THE
ONSHORE FLOW.

&&

.AVIATION...
AREAS OF MVFR CEILINGS WITH SOME MVFR/LOCAL IFR VISIBILITIES IN
CONVECTION WILL CONTINUE FOR THE NEXT 24 HOURS. BREEZY SOUTH TO
SOUTHWEST WINDS AT 15 TO 25 KNOTS WITH HIGHER GUSTS WILL ALSO
PERSIST THROUGH THE DAY THEN DIMINISH SOME TONIGHT.

&&

.MARINE...TROPICAL STORM WARNINGS CONTINUE NORTH OF ENGLEWOOD AS
SLOW MOVING DEBBY KEEPS WINDS AND SEAS AT HAZARDOUS LEVELS FOR
BOATERS. DEBBY WILL IMPACT OUR WEATHER FOR SEVERAL MORE DAYS...BUT
EXPECT SOME IMPROVEMENT ON THURSDAY WITH MUCH BETTER CONDITIONS BY
THE WEEKEND.

&&

.FIRE WEATHER...NO HUMIDITY PROBLEMS FOR THE NEXT SEVERAL DAYS.
GUSTY WINDS AND VERY STRONG TRANSPORT WINDS WILL RESULT IN HIGH
DISPERSION NUMBERS TODAY AND WEDNESDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA  87  78  87  77 /  80  70  70  50
FMY  88  78  88  77 /  60  50  70  50
GIF  88  75  87  74 /  80  70  70  50
SRQ  85  79  88  78 /  70  60  70  50
BKV  87  76  87  74 /  80  70  70  50
SPG  86  79  86  80 /  70  70  70  50

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
FL...FLOOD WATCH THROUGH THIS EVENING FOR CHARLOTTE-CITRUS-
     DESOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE-
     LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER.

     TROPICAL STORM WARNING FOR CITRUS-HERNANDO-HILLSBOROUGH-
     LEVY-MANATEE-PASCO-PINELLAS-SARASOTA.

     HIGH SURF ADVISORY UNTIL 8 PM EDT THIS EVENING FOR
     CHARLOTTE-LEE.

     COASTAL FLOOD ADVISORY UNTIL 8 PM EDT THIS EVENING FOR
     CHARLOTTE-LEE.

GULF WATERS...TROPICAL STORM WARNING FOR ENGLEWOOD TO TARPON SPRINGS OUT
     20 NM-ENGLEWOOD TO TARPON SPRINGS OUT 20 TO 60 NM-
     TAMPA BAY WATERS-TARPON SPRINGS TO SUWANNEE RIVER OUT
     20 NM-TARPON SPRINGS TO SUWANNEE RIVER OUT 20 TO 60
     NM.

     SMALL CRAFT ADVISORY UNTIL 10 AM EDT WEDNESDAY FOR BONITA
     BEACH TO ENGLEWOOD OUT 20 NM-BONITA BEACH TO
     ENGLEWOOD OUT 20 TO 60 NM.

&&

SHORT TERM/MARINE/FIRE WEATHER...63/JILLSON
LONG TERM/AVIATION...69/CLOSE
Hazardous weather outlook, Jun 26, 6:56 AM EDT, 5 hours 47 minutes before
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In the hours before

Special weather statement, Jun 26, 6:43 AM EDT, 6 hours before
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Special weather statement, Jun 26, 8:10 AM EDT, 4 hours 33 minutes before
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Special weather statement, Jun 26, 8:59 AM EDT, 3 hours 44 minutes before
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Special weather statement, Jun 26, 10:35 AM EDT, 2 hours 8 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 10:11 PM EDTRiver Flood WarningTBWHillsborough13 hr
Jun 25, 10:11 PM EDTRiver Flood WarningTBWPolk24 hr
Jun 25, 10:11 PM EDTRiver Flood WarningTBWHardee24 hr
Jun 26, 6:35 AM EDTSevere Thunderstorm WarningTBWCharlotte, DeSoto, Highlands, Lee, Sarasota40 min
Jun 26, 6:43 AM EDTSpecial Weather StatementTBWCharlotte, DeSoto, Hardee, Highlands, Lee, Polk92 min
Jun 26, 8:10 AM EDTSpecial Weather StatementTBWCharlotte, Highlands, Lee50 min
Jun 26, 8:59 AM EDTSpecial Weather StatementTBWCharlotte, DeSoto, Hardee, Highlands, Lee, Polk91 min
Jun 26, 10:23 AM EDTTornado WarningTBWHighlands10 min
Jun 26, 10:35 AM EDTSpecial Weather StatementTBWCharlotte, DeSoto, Hardee, Highlands, Lee, Polk115 min
Jun 26, 12:46 PM EDTLake Wind AdvisoryTBWDeSoto, Hardee, Highlands, Polk, Sumter19 hr
Jun 26, 1:45 PM EDTSpecial Weather StatementTBWCharlotte, DeSoto, Hardee, Highlands, Lee, Polk and 1 more2 hr
Jun 26, 3:43 PM EDTSpecial Weather StatementTBWCharlotte, DeSoto, Hardee, Highlands, Lee, Polk and 1 more2 hr

Nearby

Flood Watches in Florida, 2012Every flood watch 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.