Alert archive / Pennsylvania / Flash Flood Warnings in 1998
Flash Flood Warning 62, NWS State College, PA
NWS State College, PA issued this flash flood warning at Apr 20, 1998, 6:16 AM EDT for Huntingdon County, Pennsylvania. It was in force for 6 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 20, 1998, 6:16 AM EDT (10:16 UTC)
- Expired
- Apr 20, 1998, 12:20 PM EDT
- In force
- 6 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, 10.3 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 201021 FFWCTP PAC061-201620- BULLETIN - EAS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 616 AM EDT MON APR 20 1998 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A * FLOOD WARNING FOR... SOUTHERN HUNTINGDON COUNTY IN SOUTH CENTRAL PENNSYLVANIA * UNTIL 1220 PM EDT * RUNOFF FROM RAIN LAST EVENING WILL CAUSE TO AUGHWICK CREEK TO REMAIN HIGH THIS MORNING. MINOR FLOODING IS EXPECTED AROUND THE SHIRLEYSBURG AREA THIS MORNING. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! CONDITIONS SHOULD IMPROVE THIS AFTERNOON...AS WATER LEVELS DROP. MARTIN
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 20, 1:05 AM EDT, 5 hours 11 minutes earlier.
Area forecast discussion, Apr 20, 1:05 AM EDT, 5 hours 11 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 105 AM EDT MON APR 20 1998 ...SUGGESTIONS... PIT...WOULD GO FOR INCREASING CLOUDS ON TUE FOR MOST IF NOT ALL THE AREA ON TUE. PHL...NO SIG. INPUT. ...DISCUSSION... MAIN AREA OF RAIN PULLING OUT FAST. STILL THINK SOME REAL LIGHT RAIN OR DRIZZLE...FOG...LOWER CLDS ETC. INTO MID TO LATE MORNING FOR AREAS N AND W OF LOWER SUSQUEHANNA VALLEY. OTHERWISE...CLEARING FROM S TO N BY LATE MORNING TO MID AFTERNOON. LAST AREA TO CLEAR WILL BE AREA N AND E OF IPT. WILL BE BREEZY OUT...BUT NOT A BAD DAY FOR MID APRIL. AFTER ALL...IT HAS BEEN SO WARM LATELY...THAT FEW IF ANY DAYS ARE COOLER THAN NORMAL LATELY. SOME CU THIS AFT...BUT NOT A LOT...FAIRLY GOOD DOWNWARD MOTION. NEXT SYSTEM WILL SLOW DOWN...BUT SOME CLOUDS LIKELY BE TUE AFT...ESP. WESTERN SECTIONS. NGM HAS SOME PCPN...BUT FOR NOW...NOT BUYING INTO IT. MARTIN
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 10:25 PM EDT | Flash Flood Warning | CTP | Huntingdon | 8 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.