Alert archive / Florida / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 105, NWS Tallahassee, FL

July 14, 2007Madison County, Taylor County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 14, 2007, 2:49 PM EDT for Madison County, Taylor County, Florida. It was in force for 41 min. 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 14, 2007, 2:49 PM EDT (18:49 UTC)
Expired
Jul 14, 2007, 3:30 PM EDT
In force
41 min
Issued by
NWS Tallahassee, FL
Area
Counties, with a storm outline in the text

Counties Madison County, FL, Taylor County, FL

The radar

The Tallahassee radar (KTLH), 78 km from the middle of the area, began a volume at 18:52 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.8 hours before the alert went out and 75 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, Tallahassee Rgnl, FL at 12:00Z on 2007-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1563 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, Tallahassee Rgnl, FL at 12:00Z on 2007-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939Sfc1 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
1563 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
63 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 14, 9:43 AM EDT, 5 hours 6 minutes earlier.

Area forecast discussion, Jul 14, 9:43 AM EDT, 5 hours 6 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
943 AM EDT SAT JUL 14 2007

.DISCUSSION...
THE 12 UTC REGIONAL SURFACE ANALYSIS SHOWS A WEAK STATIONARY FRONT
EXTENDING FROM EAST TX...THROUGH THE WESTERN FL PANHANDLE AND
SOUTH GA...AND OFF THE COAST OF SC. THIS FRONT SEPARATES SLIGHTLY
DRIER AIR AND LIGHT NORTHEAST WINDS TO ITS NORTH FROM A VERY MOIST
TROPICAL AIRMASS AND LIGHT SOUTH WINDS TO THE SOUTH. VAPOR IMAGERY
AND UPPER AIR PROFILERS SHOW A STRONG RIDGE OVER THE ROCKIES AND A
FAIRLY DEEP LONG WAVE TROUGH OVER THE EAST...WITH A SHORT WAVE
TROUGH PIVOTING AROUND THE BASE OF THE LONG WAVE TROUGH OVER EAST
TX. THERE IS ABUNDANT DEEP LAYER MOISTURE OVER THE THE GULF COAST
THIS MORNING. THERE ARE ALREADY NUMEROUS SHOWERS AND THUNDERSTORMS
DEVELOPING OVER THE NORTHEAST GULF AND EASTERN FL BIG BEND...WHICH
IS TYPICAL OF THIS TYPE OF SYNOPTIC PATTERN (AMPLE DEEP LAYER
MOISTURE AND DEEP LAYER SOUTHWEST FLOW). THE FORECAST PACKAGE FROM
EARLY THIS MORNING LOOKS FINE AS THE PREVIOUS SHIFT CORRECTLY
ANTICIPATED AN EARLY START TO THE RAIN...AND IT IS HARD TO ARGUE
WITH THE 60-80 PERCENT POP GIVEN THE FAVORABLE THERMODYNAMICS AND
Q-G FORCING FROM THE APPROACHING SHORT WAVE TROUGH. THE 06 UTC
LOCAL WRF IS ALSO FORECASTING QUITE A BIT OF RAIN COVERAGE TODAY.
WHEN WE MODIFIED THE 12 UTC KTAE SOUNDING FOR A SURFACE PARCEL OF
90/71...WE GOT A MLCAPE OF 2900 J/KG WHICH IS A LITTLE HIGHER THAN
FRIDAY. THE WET MICROBURST SEVERITY INDEX FOR TODAY IS
52...INDICATING THE POTENTIAL FOR WIND GUSTS OF 35 TO 49 KT. THERE
IS A PRETTY GOOD AMOUNT OF CAPE IN THE HAIL GROWTH ZONE ABOVE THE
-10 DEGREE ISOTHERM...BUT THE MELTING AND WETBULB ZERO LEVELS ARE
VERY HIGH. THE OVERALL WEATHER PATTERN IS TYPICALLY NOT FAVORABLE
FOR HAIL FOR THIS AREA...SO ANY HAIL THAT DOES MAKE IT TO THE
GROUND WILL LIKELY BE PENNY SIZE OR LESS.

&&

.AVIATION...
SCATTERED MORNING SHWRS/TSTMS FROM THE FL PANHANDLE AND BIG BEND
COASTAL AREAS WILL GRADUALLY INCREASE IN COVERAGE AND INTENSITY
WHILE SPREADING NORTH AND EAST ACROSS THE TERMINALS TODAY. EXPECT
MVFR CIGS/IFR VSBYS AND GUSTS AOA 25 KTS IN THE VICINITY OF THE
TSTMS. THE ACTIVITY WILL SLOWLY SUBSIDE FROM WEST TO EAST THIS
EVENING.

&&

.TAE WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
GA...NONE.
FL...NONE.
GMZ750...NONE.
GMZ755...NONE.
GMZ770...NONE.
GMZ775...NONE.
&&

AVIATION...JAMSKI
REST OF DISCUSSION...FOURNIER
Hazardous weather outlook, Jul 14, 5:07 AM EDT, 9 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TALLAHASSEE FL
507 AM EDT SAT JUL 14 2007

ALZ065>069-FLZ007>019-026>029-034-GAZ120>131-142>148-155>161-
GMZ730-750-755-765-770-775-150900-
COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-COASTAL WALTON-
HOLMES-WASHINGTON-JACKSON-BAY-CALHOUN-GULF-FRANKLIN-GADSDEN-LEON-
JEFFERSON-MADISON-LIBERTY-WAKULLA-TAYLOR-LAFAYETTE-DIXIE-QUITMAN-
CLAY-RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-
IRWIN-EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE-
DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER-
APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE
RIVER FL OUT TO 20 NM-
COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM-
COASTAL WATERS FROM  OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO
20 NM-
COASTAL WATERS FROM  SUWANNEE RIVER TO KEATON BEACH OUT 20 NM-
WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM-
WATERS FROM  SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM-
507 AM EDT SAT JUL 14 2007 /407 AM CDT SAT JUL 14 2007/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA...
SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND
AND PANHANDLE...AND ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT...

AN UPPER LEVEL DISTURBANCE WILL INTERACT WITH A STATIONARY
BOUNDARY IN THE VICINITY TO PRODUCE NUMEROUS TO WIDESPREAD SHOWERS
AND THUNDERSTORMS THROUGH THIS EVENING. WITH PLENTY OF AVAILABLE
MOISTURE STREAMING NORTHWARD FROM THE GULF...THE MAIN THREAT FROM
THESE STORMS APPEARS TO BE THE POSSIBILITY OF LOCALLY HEAVY RAINFALL
PRODUCING FLOODING OF STREETS AND LOW LYING AREAS. ALTHOUGH A
SIGNIFICANT NUMBER OF STRONG STORMS IS NOT ANTICIPATED...A FEW
STORMS PRODUCING THE HEAVIER RAINFALL MAY ALSO CONTAIN FREQUENT
LIGHTNING AND STRONG GUSTY WINDS CAPABLE OF BRINGING DOWN LARGER
LIMBS AND TREES.

SHOWERS AND THUNDERSTORMS WILL CONTINUE INTO TONIGHT ALTHOUGH
OVERALL COVERAGE AND INTENSITY SHOULD DIMINISH BY THE LATER
EVENING HOURS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

NUMEROUS SHOWERS AND THUNDERSTORMS APPEAR LIKELY ONCE AGAIN FOR
SUNDAY AS THE UPPER LEVEL DISTURBANCE AFFECTING THE REGION TODAY
STALLS TO OUR WEST. ONCE AGAIN LOCALLY HEAVY RAIN AND GUSTY WINDS
APPEAR TO BE THE MAIN THREATS FROM ANY STORMS.

MORE TYPICAL SCATTERED SUMMERTIME SHOWERS AND THUNDERSTORMS ALONG
THE SEA BREEZE ARE EXPECTED EACH AFTERNOON AND EVENING DURING THE
FIRST HALF OF THE UPCOMING WORK WEEK. OVERALL COVERAGE DURING THE
AFTERNOONS WILL THEN BECOME MORE WIDELY SCATTERED IN NATURE TOWARD
THE END OF THE WEEK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE
WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA
OF INTEREST ON THE NATIONAL MAP.

MROCZKA

In the hours before

Special weather statement, Jul 14, 2:24 PM EDT, 25 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
224 PM EDT SAT JUL 14 2007

FLZ019-141915-
MADISON-
224 PM EDT SAT JUL 14 2007

...A SIGNIFICANT WEATHER ALERT IS IN EFFECT FOR MADISON COUNTY IN
NORTH FLORIDA...

* UNTIL 315 PM EDT

AT 220 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 9 MILES WEST OF SUWANNEE RIVER STATE PARK OR 3
MILES SOUTH OF LEE...MOVING EAST AT 10 MPH.

PEA SIZE HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THIS STORM.

THIS STORM IS CAPABLE OF PRODUCING TORRENTIAL DOWNPOURS WHICH MAY
CAUSE LOCALIZED FLOODING OF STREETS AND LOW LYING AREAS...AND IS ALSO
PRODUCING CONTINUOUS CLOUD TO GROUND LIGHTNING. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

38-GODSEY
Special weather statement, Jul 14, 2:35 PM EDT, 14 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>

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 14, 7:07 AM EDTSpecial Marine WarningTAE53 min
Jul 14, 4:02 PM EDTSevere Thunderstorm WarningTAEGulf43 min
Jul 14, 4:20 PM EDTSpecial Marine WarningTAE85 min
Jul 14, 5:34 PM EDTSevere Thunderstorm WarningTAEWalton41 min
Jul 14, 6:00 PM EDTSevere Thunderstorm WarningTAEHolmes45 min
Jul 14, 6:28 PM EDTSpecial Marine WarningTAE62 min
Jul 14, 6:45 PM EDTSevere Thunderstorm WarningTAEJackson30 min

Nearby

Severe Thunderstorm Warnings in Florida, 2007Every severe thunderstorm 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.