Alert archive / Florida / Special Weather Statements in 2011

Special Weather Statement, NWS Melbourne, FL

July 22, 2011Orange County, Florida

NWS Melbourne, FL issued this special weather statement at Jul 22, 2011, 3:21 PM EDT for Orange County, Florida. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 22, 2011, 3:21 PM EDT (19:21 UTC)
Expired: Jul 22, 2011, 4:00 PM EDT
In force: 39 min
Issued by: NWS Melbourne, FL

County Orange County, FL

The radar

The Melbourne radar (KMLB), 89 km from the middle of the area, began a volume at 19:22 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 12:00Z, 7.4 hours before the alert went out and 104 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: 1919 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 854 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: -25 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

932 
WWUS82 KMLB 221921
SPSMLB

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
321 PM EDT FRI JUL 22 2011

FLZ045-053-222000-
ORANGE-OSCEOLA-
321 PM EDT FRI JUL 22 2011

...A SIGNIFICANT WEATHER ADVISORY IS IN EFFECT FOR STRONG WIND GUSTS
BETWEEN 45 AND 55 MPH OVER SOUTHWESTERN ORANGE COUNTY...NORTHWESTERN
OSCEOLA COUNTY...

* UNTIL 400 PM EDT.

AT 318 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS OVER INTERCESSION
CITY...MOVING NORTHWEST AT 5 MPH.

LOCATIONS IN THE PATH OF THE STORM WHICH MAY EXPERIENCE STRONG WINDS 
INCLUDE CELEBRATION AND HOLLYWOOD STUDIOS.

THE PRIMARY THREAT WILL BE CLOUD TO GROUND LIGHTNING STRIKES AND
GUSTY WINDS OF 45 TO 55 MPH...WHICH CAN CAUSE UNSECURED OBJECTS TO
BLOW AROUND...SNAP TREE LIMBS OR CAUSE POWER OUTAGES. HEAVY RAINFALL
WILL TEMPORARILY REDUCE VISIBILITY. SEEK SHELTER INDOORS UNTIL THE
STORM PASSES.

LAT...LON 2836 8166 2845 8152 2823 8137 2814 8147
      2814 8152 2814 8153 2820 8153 2826 8156
      2826 8166
TIME...MOT...LOC 1920Z 134DEG 4KT 2822 8150

$$


WEITLICH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 2:34 PM EDT	Special Weather Statement	MLB	Lake	41 min
Jul 22, 3:11 PM EDT	Special Weather Statement	MLB	Seminole	49 min
Jul 22, 3:27 PM EDT	Severe Thunderstorm Warning	MLB	Osceola	23 min
Jul 22, 4:03 PM EDT	Special Weather Statement	MLB	Volusia	42 min
Jul 22, 4:26 PM EDT	Special Weather Statement	MLB	Okeechobee	49 min
Jul 22, 4:35 PM EDT	Special Weather Statement	MLB	Lake, Orange, Osceola, Seminole	55 min
Jul 22, 4:49 PM EDT	Areal Flood Advisory	MLB	Lake, Volusia	86 min
Jul 22, 5:07 PM EDT	Areal Flood Advisory	MLB	Orange, Osceola	83 min

Nearby

Special Weather Statements in Florida, 2011 Every special weather statement in 2011

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.