Alert archive / Florida / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 128, NWS Melbourne, FL

October 30, 1994Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Oct 30, 1994, 5:02 PM EST for Saint Lucie County, Florida. It was in force for 43 min.

The area

The counties it named.

The facts

Issued
Oct 30, 1994, 5:02 PM EST (22:02 UTC)
Expired
Oct 30, 1994, 5:45 PM EST
In force
43 min
Issued by
NWS Melbourne, FL
Area
Whole counties

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 84 km from the middle of the area, began a volume at 22:04 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.0 hours before the alert went out and 121 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, Cape Canaveral, FL at 12:00Z on 1994-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3124 joules per kilogram.LCLEL10008507005003002001001 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, Cape Canaveral, FL at 12:00Z on 1994-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
3124 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 30, 2:33 PM EST, 2 hours 29 minutes earlier.

Area forecast discussion, Oct 30, 2:33 PM EST, 2 hours 29 minutes before
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In the hours before

Special weather statement, Oct 30, 3:50 PM EST, 1 hour 12 minutes before
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Special weather statement, Oct 30, 3:52 PM EST, 1 hour 10 minutes before
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Special weather statement, Oct 30, 3:53 PM EST, 1 hour 9 minutes before
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Special weather statement, Oct 30, 4:39 PM EST, 23 minutes before
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Special weather statement, Oct 30, 4:39 PM EST, 23 minutes before
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Special weather statement, Oct 30, 4:40 PM EST, 22 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 30, 11:35 AM ESTSevere Thunderstorm WarningMLBMarion55 min
Oct 30, 11:43 AM ESTTornado WarningMLBMarion32 min
Oct 30, 12:25 PM ESTSevere Thunderstorm WarningMLBFlagler65 min
Oct 30, 12:28 PM ESTSevere Thunderstorm WarningMLBMarion62 min
Oct 30, 1:06 PM ESTTornado WarningMLBMarion69 min
Oct 30, 1:35 PM ESTTornado WarningMLBFlagler55 min
Oct 30, 1:43 PM ESTSevere Thunderstorm WarningMLBLake, Volusia62 min
Oct 30, 2:06 PM ESTTornado WarningMLBLake50 min
Oct 30, 2:23 PM ESTSevere Thunderstorm WarningMLBSeminole, Volusia67 min
Oct 30, 2:28 PM ESTSevere Thunderstorm WarningMLBFlagler62 min

Nearby

Severe Thunderstorm Warnings in Florida, 1994Every severe thunderstorm warning in 1994

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.