Alert archive / Florida / Areal Flood Warnings in 2021

Areal Flood Warning 1, NWS Tampa Bay, FL

July 7, 2021Manatee County, Sarasota County, Florida

NWS Tampa Bay, FL issued this areal flood warning at Jul 7, 2021, 1:35 AM EDT for Manatee County, Sarasota County, Florida. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 7, 2021, 1:35 AM EDT (05:35 UTC)
Expired
Jul 7, 2021, 3:00 PM EDT
In force
13 hr
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon
Flood severity
None

Counties Manatee County, FL, Sarasota County, FL

The radar

The Tampa radar (KTBW), 42 km from the middle of the area, began a volume at 05:37 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 00:00Z, 5.6 hours before the alert went out and 42 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, Tampa Bay, FL at 00:00Z on 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 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, Tampa Bay, FL at 00:00Z on 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 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
46 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
266 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal 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 areal flood warning went out at Jul 6, 9:24 PM EDT, 4 hours 11 minutes earlier.

Area forecast discussion, Jul 6, 9:24 PM EDT, 4 hours 11 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jul 6, 4:48 AM EDT, 20 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Tampa Bay Ruskin FL
448 AM EDT Tue Jul 6 2021

FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-
239-242-248-249-251-255-260-262-265-062100-
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-
448 AM EDT Tue Jul 6 2021

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

.DAY ONE...Today and Tonight.

...THUNDERSTORM IMPACT...
Thunderstorms are expected. Thunderstorms that develop will be
capable of producing strong gusty winds...locally heavy rains...
and frequent deadly lightning strikes.

...FLOOD IMPACT...
Locally heavy rainfall is expected as Tropical Storm Elsa
approaches the region. The heavy rain will produce flooding of
low lying and poor drainage areas as well as the ponding of water
on roadways. Motorists should exercise caution.

...HIGH WIND IMPACT...
Tropical Storm force winds will be possible. These strong winds
may break small twigs from trees and blow around any unsecured
outdoor objects. High profile vehicles should use extra caution
especially if traveling over bridges or high overpasses.

...COASTAL FLOOD IMPACT...
Conditions favorable for coastal flooding are expected to develop.
Coastal residents should be alert for later statements or
warnings...and take action to protect property.

...RIP CURRENT IMPACT...
High surf may produce rip currents along area beaches.

...MARINE IMPACTS...
Tropical Storm force winds will create hazardous boating conditions
for small craft operators. A Hurricane Watch is in effect from
Egmont Key northward.

...WATERSPOUT IMPACT...
Atmospheric conditions will be favorable for waterspout development.
Mariners should be on the lookout for waterspouts.

...RIVER FLOOD IMPACT...
River flooding is expected along the area river. 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...Wednesday through Monday.

...THUNDERSTORM IMPACT...
Thunderstorms are expected on Wednesday. Thunderstorms will be
capable of producing strong gusty winds...locally heavy rains...
and frequent deadly lightning strikes.

...FLOOD IMPACT...
Locally heavy rainfall is expected on Wednesday as Tropical Storm
Elsa continues to move near the region. The heavy rain will
produce flooding of low- lying and poor drainage areas as well as
the ponding of water on roadways. Motorists should exercise
caution.

...HIGH WIND IMPACT...
Tropical Storm force winds will be possible on Wednesday.

...COASTAL FLOOD IMPACT...
On Wednesday conditions will be favorable for coastal flooding.
Coastal residents should be alert for later statements or
warnings...and take action to protect property.

...RIP CURRENT IMPACT...
On Wednesday high surf may produce rip currents along area beaches.

...MARINE IMPACTS...
Tropical Storm force winds will create hazardous boating conditions
for small craft operators on Wednesday. A Hurricane Watch is in
effect from Egmont Key northward during this time.

...WATERSPOUT IMPACT...
Atmospheric conditions will be favorable for waterspout development
on Wednesday. Mariners should be on the lookout for waterspouts.

...RIVER FLOOD IMPACT...
River flooding will be possible along area rivers through the week.
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.

TBW

In the hours before

Local storm report, Jul 6, 8:27 PM EDT, 5 hours 8 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 6, 10:02 PM EDT, 3 hours 33 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 6, 10:56 PM EDT, 2 hours 39 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Local storm report, Jul 7, 12:25 AM EDT, 1 hour 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
1225 AM EDT WED JUL 7 2021

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

1130 PM     TROPICAL STORM   1 E BASKIN              27.89N 82.79W
07/06/2021                   PINELLAS           FL   MESONET

            MESONET STATION 0503W 1.2 SW LARGO
            (WEATHERSTEM) REPORTED A WIND GUST OF 42
            MPH.

1132 PM     TROPICAL STORM   7 NW PALMETTO           27.60N 82.65W
07/06/2021                   GMZ830             FL   MESONET

            MESONET STATION XSKY SKYWAY FISHING PIER
            REPORTED A WIND GUST OF 45 MPH.

1136 PM     TROPICAL STORM   6 E SAINT PETERSBURG    27.77N 82.57W
07/06/2021                   GMZ830             FL   MESONET

            MESONET STATION XTAM TAMPA BAY CUT J
            REPORTED A WIND GUST OF 47 MPH.

1142 PM     TROPICAL STORM   3 NW DUNEDIN            28.06N 82.81W
07/06/2021                   PINELLAS           FL   MESONET

            MESONET STATION XDUN DUNEDIN CAUSEWAY
            REPORTED A WIND GUST OF 45 MPH.

1145 PM     TROPICAL STORM   TREASURE ISLAND         27.77N 82.76W
07/06/2021                   PINELLAS           FL   MESONET

            MESONET STATION FW1958 TREASURE ISLAND
            REPORTED A WIND GUST OF 42 MPH.

1146 PM     TROPICAL STORM   2 NNE BELLEAIR          27.96N 82.80W
07/06/2021                   PINELLAS           FL   MESONET

            MESONET STATION FW8592 SEMINOLE REPORTED A
            WIND GUST OF 43 MPH.

1153 PM     TROPICAL STORM   2 ENE SAINT PETERSBURG  27.77N 82.63W
07/06/2021                   PINELLAS           FL   ASOS

            ASOS STATION KSPG ST PETERS ALBERT REPORTED
            A WIND GUST OF 49 MPH.

1154 PM     TROPICAL STORM   4 NNW BELLEAIR          27.99N 82.83W
07/06/2021                   PINELLAS           FL   MESONET

            MESONET STATION FW1789 CLEARWATER BEACH
            REPORTED A WIND GUST OF 56 MPH.

&&
Local storm report, Jul 7, 1:00 AM EDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
100 AM EDT WED JUL 7 2021

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

1253 AM     TROPICAL STORM   4 NNW BELLEAIR          27.99N 82.83W
07/07/2021                   PINELLAS           FL   MESONET

            MESONET STATION FW1789 CLEARWATER BEACH
            REPORTED WINDS OF 59 MPH.

&&
Local storm report, Jul 7, 1:02 AM EDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
102 AM EDT WED JUL 7 2021

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

1253 AM     TROPICAL STORM   2 ENE SAINT PETERSBURG  27.77N 82.63W
07/07/2021                   PINELLAS           FL   ASOS

            ASOS STATION KSPG ST PETERS ALBERT REPORTED
            52 MPH WINDS.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 10:51 PM EDTAreal Flood AdvisoryTBWCharlotte, Sarasota3 hr
Jul 7, 1:01 AM EDTAreal Flood AdvisoryTBWManatee, Sarasota38 min
Jul 7, 1:10 AM EDTTornado WarningTBWHernando, Pasco, Sumter20 min
Jul 7, 2:08 AM EDTTornado WarningTBWDeSoto, Manatee, Sarasota22 min
Jul 7, 3:51 AM EDTTornado WarningTBWHardee24 min
Jul 7, 6:16 AM EDTAreal Flood WarningTBWCharlotte, DeSoto, Hardee9 hr
Jul 7, 6:24 AM EDTAreal Flood WarningTBWLee9 hr
Jul 7, 8:27 AM EDTRiver Flood WarningTBWManatee33 hr
Jul 7, 9:24 AM EDTRiver Flood WarningTBWDeSoto5 days
Jul 7, 9:25 AM EDTRiver Flood WarningTBWHardee29 hr
Jul 7, 9:26 AM EDTRiver Flood WarningTBWHillsborough60 hr
Jul 7, 9:27 AM EDTRiver Flood WarningTBWManatee58 hr
Jul 7, 11:25 AM EDTRip Current StatementTBWCharlotte, Lee, Manatee, Pinellas, Sarasota9 hr
Jul 7, 11:25 AM EDTHigh Surf AdvisoryTBWCharlotte, Lee, Manatee, Pinellas, Sarasota9 hr
Jul 7, 11:28 AM EDTSmall Craft AdvisoryTBW12 hr
Jul 7, 11:37 AM EDTRiver Flood WarningTBWManatee57 hr
Jul 7, 12:04 PM EDTAreal Flood WarningTBWCitrus, Hernando, Pasco3 hr
Jul 7, 2:10 PM EDTCoastal Flood AdvisoryTBWCitrus, Hernando, Levy9 hr

Nearby

Areal Flood Warnings in Florida, 2021Every areal flood warning in 2021

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.