Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 54, NWS Tampa Bay, FL

April 23, 20075 counties in Florida

NWS Tampa Bay, FL issued this red flag warning at Apr 23, 2007, 2:29 AM EDT for 5 counties in Florida. It took effect at Apr 23, 2007, 1:00 PM EDT. It was in force for 7 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: Apr 23, 2007, 2:29 AM EDT (06:29 UTC)
In effect from: Apr 23, 2007, 1:00 PM EDT
Expired: Apr 23, 2007, 8:00 PM EDT
In force: 7 hr
Issued by: NWS Tampa Bay, FL

Counties DeSoto County, FL, Hardee County, FL, Highlands County, FL, Polk County, FL, Sumter County, FL

The radar

The Tampa radar (KTBW), 64 km from the middle of the area, began a volume at 06:33 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, 6.5 hours before the alert went out and 64 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: 2222 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -35 m²/s²
0-3 km storm-relative helicity: 23 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 red flag 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 red flag warning went out at Apr 22, 9:10 PM EDT, 5 hours 19 minutes earlier.

Area forecast discussion, Apr 22, 9:10 PM EDT, 5 hours 19 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, Apr 22, 4:37 AM EDT, 21 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
437 AM EDT SUN APR 22 2007

FLZ039-042-043-048>052-055>057-060>062-065-221400-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DE SOTO-CHARLOTTE-LEE-
437 AM EDT SUN APR 22 2007

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

.DAY ONE...TODAY AND TONIGHT.

...FIRE WEATHER IMPACT...
STRENGTHENING HIGH PRESSURE ALOFT WILL STABILIZE THE AREA TODAY
AND ALLOW DRY AIR JUST ABOVE THE SURFACE TO MIX DOWN. HUMIDITIES
WILL DROP BRIEFLY THIS AFTERNOON TO DANGEROUS LEVELS BUT WILL
COMBINE WITH WINDS NEAR 15 MPH TO CREATE A THREAT FOR THE SPREAD
OF ANY WILDFIRES THAT DEVELOP. THE DRIEST AIR TODAY IS EXPECTED TO
BE OVER INTERIOR CENTRAL FLORIDA SOUTH TO SOUTHWEST FLORIDA...WHERE
A RED FLAG WARNING IS IN EFFECT.

OTHERWISE NO WEATHER HAZARDS ARE EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SOMEWHAT DRY AIR WILL CONTINUE TO PROVIDE MARGINAL RELATIVE
HUMIDITIES EACH AFTERNOON. RED FLAG WARNINGS MAY NEED TO BE
ISSUED. THE ATMOSPHERE WILL MOISTEN SLIGHTLY LATER IN THE
WEEK...WITH SLIGHT RAIN CHANCES RETURNING FRIDAY AND SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

SHARP

Nearby

Red Flag Warnings in Florida, 2007 Every red flag warning in 2007

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.