Alert archive / Ohio / Flash Flood Warnings in 1999

Flash Flood Warning 13, NWS Pittsburgh, PA

January 14, 1999Belmont County, Ohio

NWS Pittsburgh, PA issued this flash flood warning at Jan 14, 1999, 3:34 AM EST for Belmont County, Ohio. It was in force for 7 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
Jan 14, 1999, 3:34 AM EST (08:34 UTC)
Expired
Jan 14, 1999, 11:00 AM EST
In force
7 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Belmont County, OH

The radar

The Pittsburgh radar (KPBZ), 87 km from the middle of the area, began a volume at 08:35 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

Pittsburgh, PA (KPIT), launched 00:00Z, 8.6 hours before the alert went out and 87 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, Pittsburgh, PA at 00:00Z on 1999-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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, Pittsburgh, PA at 00:00Z on 1999-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 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
6 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
446 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
387 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.

000 
TTAA00 KPIT 140835
FFWPIT
OHC013-141600-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
334 AM EST THU JAN 14 1999

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS EXTENDED THE

* FLOOD WARNING FOR...
  BELMONT COUNTY IN EAST CENTRAL OHIO.

* UNTIL 1100 AM EST.

* AT 330 AM AREA LAW ENFORCEMENT OFFICIALS INDICATED NO CHANGE IN
THE FLOODING ALONG COUNTY ROUTE 56 FROM THE ICE JAM ON CAT RUN.
THE ICE JAM IS JUST WEST OF STEINERSVILLE ABOUT 1 MILE WEST OF
POWHATAN POINT.

<<CALL TO ACTION>>DON'T DRIVE INTO AREAS WHERE WATER COVERS THE
ROAD!

.END/RSD/DS

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 13, 8:59 PM ESTFlash Flood WarningPBZBelmont7 hr

Nearby

Flash Flood Warnings in Ohio, 1999Every flash flood warning in 1999

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.