Alert archive / Florida / River Flood Warnings in 2020

River Flood Warning 10, NWS Tampa Bay, FL

September 12, 2020Pasco County, Florida

NWS Tampa Bay, FL issued this river flood warning at Sep 12, 2020, 9:08 PM EDT for Pasco County, Florida. It took effect at Sep 13, 2020, 2:00 PM EDT. It was in force for 20 days.

The area

The counties it named.

The facts

Issued
Sep 12, 2020, 9:08 PM EDT (01:08 UTC)
In effect from
Sep 13, 2020, 2:00 PM EDT
Expired
Oct 3, 2020, 9:08 PM EDT
In force
20 days
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon
Flood severity
Minor

County Pasco County, FL

The radar

The Tampa radar (KTBW), 67 km from the middle of the area, began a volume at 01:10 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 river

Written for the forecast point Cypress Creek at SR 54 Worthington Gardens (WRGF1). The gauge peaked at 8.06 ft at Sep 18, 2020, 1:00 PM EDT.

actionminormoderatemajor68101209/1309/1409/1509/1609/1709/1809/1909/2009/2109/2209/2309/2409/2509/2609/2709/2809/2909/3010/0110/0210/0310/0410/05
Action stage
7 ft
Minor stage
8 ft
Moderate stage
11 ft
Major stage
12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02303420, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Sep 12, 8:52 PM EDT, 16 minutes earlier.

Area forecast discussion, Sep 12, 8:52 PM EDT, 16 minutes before
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Hazardous weather outlook, Sep 12, 4:54 AM EDT, 16 hours 14 minutes before
Hazardous Weather Outlook
National Weather Service Tampa Bay Ruskin FL
454 AM EDT Sat Sep 12 2020

FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-
239-242-248-249-251-255-260-262-265-GMZ830-836-850-853-856-870-
873-876-130000-
Sumter-Pinellas-Polk-Hardee-Highlands-DeSoto-Coastal Levy-
Coastal Citrus-Coastal Hernando-Coastal Pasco-
Coastal Hillsborough-Coastal Manatee-Coastal Sarasota-
Coastal Charlotte-Coastal Lee-Inland Levy-Inland Citrus-
Inland Hernando-Inland Pasco-Inland Hillsborough-Inland Manatee-
Inland Sarasota-Inland Charlotte-Inland Lee-Tampa Bay waters-
Charlotte Harbor and Pine Island Sound-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
454 AM EDT Sat Sep 12 2020

This Hazardous Weather Outlook is for West Central And Southwest
Florida.

.DAY ONE...Today and Tonight.

...THUNDERSTORM IMPACT...
Thunderstorms are expected, with a Marginal Risk for severe
thunderstorms over southwest Florida. Thunderstorms that develop
will be capable of producing damaging winds...locally heavy
rains... and frequent deadly lightning strikes.

...FLOOD IMPACT...
Widespread thunderstorms will be possible today as Tropical
Depression Nineteen moves across southern Florida, producing
locally heavy rainfall. The heavy rain will cause flooding of low
lying and poor drainage areas as well as the ponding of water on
roadways, especially in areas that have already seen significant
rainfall this week. Motorists should exercise caution.

...MARINE IMPACTS...
Tropical Storm force winds in the eastern gulf waters will create
hazardous boating conditions for small craft operators.

...WATERSPOUT IMPACT...
As Tropical Depression Nineteen moves across southern Florida,
atmospheric conditions will be favorable for waterspout
development. Mariners should be on the lookout for waterspouts.

...RIVER FLOOD IMPACT...
River flooding is expected along some of the local area rivers.
Residents living along rivers or faster flowing streams should
remain aware of water levels and be ready to move to higher ground
should flooding be observed.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

...THUNDERSTORM IMPACT...
On Sunday, thunderstorms are expected. Thunderstorms will be
capable of producing strong gusty winds...locally heavy rains...
and frequent deadly lightning strikes.

...FLOOD IMPACT...
On Sunday, widespread thunderstorms will be possible as Tropical
Depression Nineteen moves through the eastern Gulf of Mexico,
producing locally heavy rainfall. The heavy rain will cause
flooding of low lying and poor drainage areas as well as the
ponding of water on roadways, especially in areas that have
already seen significant rainfall this week. Motorists should
exercise caution.

...RIP CURRENT IMPACT...
On Sunday, high surf created from Tropical Depression Nineteen
may produce dangerous rip currents along area beaches.

...MARINE IMPACTS...
Tropical Storm force winds in the eastern gulf waters will create
hazardous boating conditions for small craft operators.

...WATERSPOUT IMPACT...
As Tropical Depression Nineteen moves through the eastern Gulf of
Mexico, atmospheric conditions will be favorable for waterspout
development. Mariners should be on the lookout for waterspouts.

...RIVER FLOOD IMPACT...
River flooding is expected along some of the local area rivers.
Residents living along rivers or faster flowing streams should
remain aware of water levels and be ready to move to higher ground
should flooding be observed.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

Wynn

In the hours before

Local storm report, Sep 12, 4:03 PM EDT, 5 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
403 PM EDT SAT SEP 12 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0237 PM     MARINE TSTM WIND 2 ENE SAINT PETERSBURG  27.77N 82.63W
09/12/2020  M44 MPH          PINELLAS           FL   ASOS

            ASOS STATION KSPG ST PETERS ALBERT.

&&

TH
Special weather statement, Sep 12, 4:33 PM EDT, 4 hours 35 minutes before
Special Weather Statement
National Weather Service Tampa Bay Area Ruskin FL
433 PM EDT Sat Sep 12 2020

FLZ043-052-149-151-249-251-122115-
Inland Pasco FL-Coastal Hillsborough FL-Sumter FL-Polk FL-
Inland Hillsborough FL-Coastal Pasco FL-
433 PM EDT Sat Sep 12 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN SUMTER...
SOUTHEASTERN PASCO...HILLSBOROUGH AND NORTHWESTERN POLK COUNTIES
UNTIL 515 PM EDT...

At 433 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Haines City to near Brandon. Movement was
northwest at 30 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Tampa, Lakeland, Plant City, Winter Haven, Temple Terrace, Haines
City, Bartow, Auburndale, Zephyrhills, Dade City, Fish Hawk, Lutz,
Brandon, St. Leo, Hillsborough River State Park, Zephyrhills South,
Palm River-Clair Mel, East Lake-Orient Park, Zephyrhills West and
Land O Lakes.

LAT...LON 2820 8269 2850 8196 2835 8196 2835 8186
      2836 8185 2836 8179 2835 8179 2835 8175
      2827 8166 2826 8166 2826 8164 2817 8152
      2768 8225 2815 8265 2817 8265 2817 8267
TIME...MOT...LOC 2033Z 124DEG 27KT 2818 8166 2790 8225

TBW
Special weather statement, Sep 12, 9:02 PM EDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 12, 8:46 PM EDTSpecial Marine WarningTBW59 min
Sep 12, 9:02 PM EDTSpecial Weather StatementTBWLee58 min
Sep 12, 9:37 PM EDTSpecial Marine WarningTBW53 min
Sep 12, 10:27 PM EDTSpecial Marine WarningTBW63 min
Sep 12, 11:27 PM EDTSpecial Marine WarningTBW63 min
Sep 13, 12:19 AM EDTSpecial Weather StatementTBWLee41 min
Sep 13, 12:33 AM EDTSpecial Marine WarningTBW87 min
Sep 13, 1:59 AM EDTSpecial Marine WarningTBW91 min
Sep 13, 3:27 AM EDTSpecial Marine WarningTBW63 min
Sep 13, 3:48 AM EDTAreal Flood AdvisoryTBWLee3 hr
Sep 13, 4:27 AM EDTSpecial Marine WarningTBW93 min
Sep 13, 5:50 AM EDTSpecial Marine WarningTBW85 min
Sep 13, 8:06 AM EDTAreal Flood AdvisoryTBWLee5 hr
Sep 13, 8:10 AM EDTHigh Surf AdvisoryTBWCharlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota12 hr
Sep 13, 10:28 AM EDTAreal Flood AdvisoryTBWLee3 hr
Sep 13, 4:29 PM EDTAreal Flood AdvisoryTBWLee76 min
Sep 13, 5:50 PM EDTFlash Flood WarningTBWLee3 hr
Sep 13, 5:59 PM EDTSpecial Marine WarningTBW31 min
Sep 13, 6:04 PM EDTTornado WarningTBWLee26 min
Sep 13, 6:30 PM EDTTornado WarningTBWLee25 min
Sep 13, 6:34 PM EDTSpecial Marine WarningTBW26 min

Nearby

River Flood Warnings in Florida, 2020Every river flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.