Alert archive / Florida / Flash Flood Warnings in 1997

Flash Flood Warning 8, NWS Tampa Bay, FL

September 27, 1997Hillsborough County, Florida

NWS Tampa Bay, FL issued this flash flood warning at Sep 27, 1997, 3:00 AM EDT for Hillsborough County, Florida. It was in force for 4 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
Sep 27, 1997, 3:00 AM EDT (07:00 UTC)
Expired
Sep 27, 1997, 6:50 AM EDT
In force
4 hr
Issued by
NWS Tampa Bay, FL
Area
Whole counties

County Hillsborough County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 7.0 hours before the alert went out and 23 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 1997-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1392 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 1997-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
1392 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 11:19 PM EDTFlash Flood WarningTBWHillsborough, Pinellas4 hr
Sep 27, 3:11 AM EDTFlash Flood WarningTBWHillsborough4 hr
Sep 27, 5:55 AM EDTFlash Flood WarningTBWPasco4 hr
Sep 27, 7:17 AM EDTFlash Flood WarningTBWHillsborough, Manatee, Pinellas4 hr
Sep 27, 7:17 AM EDTFlash Flood WarningTBWCharlotte, Lee4 hr
Sep 27, 11:26 AM EDTFlash Flood WarningTBWHillsborough, Manatee, Pinellas3 hr
Sep 27, 11:26 AM EDTFlash Flood WarningTBWCharlotte, Lee3 hr
Sep 27, 11:26 AM EDTFlash Flood WarningTBWSarasota3 hr
Sep 27, 12:51 PM EDTFlash Flood WarningTBWPasco, Polk3 hr
Sep 27, 2:10 PM EDTFlash Flood WarningTBWHillsborough, Pasco4 hr

Nearby

Flash Flood Warnings in Florida, 1997Every flash flood warning in 1997

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.