Alert archive / Pennsylvania / Flash Flood Warnings in 1998
Flash Flood Warning 61, NWS State College, PA
NWS State College, PA issued this flash flood warning at Apr 19, 1998, 10:25 PM EDT for Huntingdon County, Pennsylvania. It was in force for 8 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
- Apr 19, 1998, 10:25 PM EDT (02:25 UTC)
- Expired
- Apr 20, 1998, 6:25 AM EDT
- In force
- 8 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Huntingdon County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.4 hours before the alert went out and 171 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 495 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- -201 m²/s²
- 0-3 km storm-relative helicity
- -45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 200229 FFWCTP PAC061-201025- BULLETIN - EAS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 1025 PM EDT SUN APR 19 1998 THE NATIONAL WEATHER SERVICE HAS CONTINUED THE FLOOD WARNING FOR... SOUTHERN HUNTINGDON COUNTY - SOUTH CENTRAL PENNSYLVANIA * UNTIL 625 AM EDT * MINOR FLOODING IS EXPECTED AROUND-SHIRLEYSBURG ON THE AUGHWICK CREEK. RUNOFF FROM EARLIER HEAVY RAINS IS EXPECTED TO CONTINUE TO CAUSE MINOR FLOODING PROBLEMS NEA<R SHIRLEYSBURG FOR MUCH OF THE NIGHT. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODING. &
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Apr 19, 9:25 PM EDT, 1 hour earlier.
Area forecast discussion, Apr 19, 9:25 PM EDT, 1 hour before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 925 PM EDT SUN APR 19 1998 WRKZNS SENT TO PHL AND PIT VIA PHLADMCTP DISCUSSION... DOUBLE BARREL LOW PRESSURE AREA...WITH ONE CENTER OVER SW PA AND ONE CENTER OVER THE DELMARVA AREA WILL CONSOLIDATE AND DEEPEN OFF THE NJ COAST LATE TONIGHT. BACK EDGE OF THE RAIN IS MOVING RAPIDLY NORTHEAST ACROSS SOMERSET CO ATTM...AND AFTER COORD WITH PIT AGREED ON ISSUING THE ZONES AROUND 10 TO 1030 PM WITHOUT ANY HEADLINES... AS WARNINGS WILL BE EXPIRING AND ANY SIGNIFICANT RAIN WILL BE OVER AROUND THAT TIME. TIMING OF THE BACK EDGE OF THE RAIN INDICATES THAT RAIN WILL BE OVER FOR THE SW HALF OF THE CWA BY MIDNIGHT...AND THE NE HALF BY ABOUT 3 AM. RADAR ESTIMATES/IFLOWS GAGES AND SPOTTER REPORTS INDICATE RAINFALL AMOUNTS OF ANYWHERE FROM 1 TO 2.5 INCHES ACROSS THE CWA...WITH RADAR ESTIMATES INDICATING LOCALIZED 3 TO 3.5 INCH AMOUNTS OVER THE MID-SUSQUEHANNA VALLEY. WITH A FEW MORE HOURS OF MODERATE RAIN EXPECTED FOR THE MID AND UPPER SUSQUEHANNA VLY WOULD KEEP THE HEADLINES GOING FOR A FEW MORE HOURS. WENT WITH RAIN TAPERING TO DRIZZLE WEST AND NORTH OF THE ALLEGHANY FRONT OVERNIGHT...WITH JUST RAIN ENDING EAST OF THE RIDGES AS A GOOD DRY PUNCH APPEARS TO BE AIMED AT SOUTHERN PA...WHILE WRAP AROUND MOISTURE AND A MID-LVL DEFORMATION ZONE THRU 06Z WILL KEEP SOME DRIZZLE GOING...ESPECIALLY OVER THE NORTHERN MTNS. HAD A REPORT OF SOME WET SNOW...WITH NO ACCUMULATION...OVER HIGHER TERRAIN IN POTTER CO EARLIER TODAY...SO MENTIONED A FEW FLURRIES POSSIBLE OVER HIGHER TERRAIN ACROSS THE NORTHERN MTNS. MSE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 20, 6:16 AM EDT | Flash Flood Warning | CTP | Huntingdon | 6 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 1998Every flash flood warning in 1998
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.