Alert archive / Pennsylvania / Flash Flood Warnings in 2000

Flash Flood Warning 8, NWS State College, PA

March 23, 2000Columbia County, Schuylkill County, Pennsylvania

NWS State College, PA issued this flash flood warning at Mar 23, 2000, 10:30 AM EST for Columbia County, Schuylkill County, Pennsylvania. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 23, 2000, 10:30 AM EST (15:30 UTC)
Expired
Mar 23, 2000, 10:45 AM EST
In force
15 min
Issued by
NWS State College, PA
Area
Whole counties

Counties Columbia County, PA, Schuylkill County, PA

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 3.5 hours before the alert went out and 158 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, Phillips Aaf/Abe, MD at 12:00Z on 2000-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Phillips Aaf/Abe, MD at 12:00Z on 2000-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
874 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
48 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 
WGUS51 KCTP 231530
FFWCTP

PAC037-107-231545-

FLASH FLOOD WARNING !!! THIS IS ONLY A TEST !!!
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1030 AM EST THU MAR 23 2000

           *** THIS MESSAGE IS FOR TEST PURPOSES ONLY ***
     * NO SEVERE WEATHER IS OCCURRING IN THE MENTIONED AREA! *

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* DRILL FLASH FLOOD WARNING FOR...
  COLUMBIA COUNTY.
  SCHUYLKILL COUNTY.

* UNTIL 1045 AM EST.

* THE DRILL FLASH FLOOD WILL BE NEAR...
  BLOOMSBURG AT 1035 AM.
  POTTSVILLE AT 1035 AM.
  PINE GROVE AT 1040 AM.

* AT 0928 AM...A DRILL FLASH FLOOD WAS INDICATED WEST OF MILLVILLE
  AND SOUTH OF SHAMOKIN...BY NATIONAL WEATHER SERVICE DOPPLER
  RADAR.  THIS IS ONLY A DRILL.

IF THIS WERE AN ACTUAL WARNING...WE WOULD PROVIDE DETAILS OF DAMAGE
AND SUGGEST SAFE LOCATIONS AS SHELTER.

AGAIN...THIS IS A DRILL FLASH FLOOD WARNING.  NO FLOODING IS 
OCCURRING AT THIS TIME.

DUNHAM

Nearby

Flash Flood Warnings in Pennsylvania, 2000Every flash flood warning in 2000

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.