Alert archive / Florida / Mesoscale Discussions in 2005

Mesoscale Discussion 94

January 14, 200517 counties in Florida

The Storm Prediction Center issued this mesoscale discussion at Jan 14, 2005, 2:22 AM EST for 17 counties in Florida. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued
Jan 14, 2005, 2:22 AM EST (07:22 UTC)
Expired
Jan 14, 2005, 3:15 AM EST
In force
53 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm potential

Counties Brevard County, FL, Charlotte County, FL, DeSoto County, FL, Flagler County, FL, Hardee County, FL, Highlands County, FL, Hillsborough County, FL, Lake County, FL, Manatee County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Sarasota County, FL, Seminole County, FL, Volusia County, FL

The radar

The Tampa radar (KTBW), 77 km from the middle of the area, began a volume at 07:25 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, 7.4 hours before the alert went out and 77 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 2005-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 391 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 2005-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.193958Sfc1 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
391 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
1111 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 14, 10:54 AM ESTMesoscale DiscussionSPCBroward, Palm Beach3 hr

Nearby

Mesoscale Discussions in Florida, 2005Every mesoscale discussion in 2005

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.