Alert archive / Pennsylvania / Flash Flood Warnings in 1998
Flash Flood Warning 20, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jan 8, 1998, 2:02 PM EST for Centre County, Clinton County, Pennsylvania. 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
- Jan 8, 1998, 2:02 PM EST (19:02 UTC)
- Expired
- Jan 8, 1998, 6:05 PM EST
- In force
- 4 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Centre County, PA, Clinton County, PA
The radar
The State College radar (KCCX), 29 km from the middle of the area, began a volume at 19:05 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 12:00Z, 7.0 hours before the alert went out and 213 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
- 129 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 640 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 081907 RRA FFWCTP PAC009-013-027-035-057-061-087-082305- BULLETIN - EAS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 202 PM EST THU JAN 8 1998 THE NATIONAL WEATHER SERVICE HAS ISSUED A * FLOOD WARNING FOR CLINTON COUNTY CENTRE COUNTY BLAIR COUNTY HUNTINGDON COUNTY MIFFLIN COUNTY BEDFORD COUNTY FULTON COUNTY * UNTIL 605 PM EST * RAINFALL OF 1 TO 2 INCHES FELL ACROSS MUCH OF THE AREA IN THE PAST 24 HOURS. ADDITIONAL HEAVY RAIN WILL CROSS THE AREA THROUGH LATE AFTERNOON. MANY SMALL STREAMS ARE RUNNING AT BANKFULL AND ANY ADDED HEAVY RAIN SHOULD CAUSE FLOODING. SMALL STREAMS AND ROADWAYS MAY FLOOD QUICKLY AS ADDITIONAL RAIN MOVES EAST ACROSS THE AREA. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. DUNHAM
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 Jan 8, 12:52 PM EST, 1 hour 10 minutes earlier.
Area forecast discussion, Jan 8, 12:52 PM EST, 1 hour 10 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 1255 AM EST THU JAN 8 1998 ...ZONE SUGGESTIONS... PIT/PHL...CALL IF SIG. CHANGES PLANNED. SEE BELOW FOR MY 2 CENTS WORTH. ...DISCUSSION... MAIN AREA OF HEAVY RAIN OVER SE PA LOOKS LIKE IT IS GOING NEG TILT AND LIFTING OUT. SOME HEAVY RAIN OVER SW NY...BUT MAY BE SOME BRIGHT BANDING. ALSO MOVING N OUT OF N PA. ANOTHER AREA OF HEAVIER SHOWERS OVER SW PA...BUT MOVING FAIRLY FAST. THUS THE WORSE LOOKS LIKE IT IS OVER...THUS DID NOT GO TOO CRAZY WITH NEW QPS. MOST LIKELY WILL STILL NEED TO KEEP WATCHES UP INTO THIS EVENING...BASED ON SPOTTY HEAVY RAIN...AND CURRENT PATCH WORK OF WARNINGS...UNLESS ECHOES ON RADAR DRY UP AND WARNINGS CAN DIE BY 4 PM. MARTIN
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 10:36 PM EST | Flash Flood Warning | CTP | Warren | 7 hr |
| Jan 8, 2:42 AM EST | Flash Flood Warning | CTP | Somerset | 6 hr |
| Jan 8, 5:55 AM EST | Flash Flood Warning | CTP | Warren | 3 hr |
| Jan 8, 7:39 AM EST | Severe Thunderstorm Warning | CTP | Adams, York | 66 min |
| Jan 8, 8:09 AM EST | Flash Flood Warning | CTP | Dauphin, Lebanon, Schuylkill | 4 hr |
| Jan 8, 8:09 AM EST | Flash Flood Warning | CTP | Adams, York | 4 hr |
| Jan 8, 8:09 AM EST | Flash Flood Warning | CTP | Lancaster | 4 hr |
| Jan 8, 8:50 AM EST | Flash Flood Warning | CTP | Warren | 5 hr |
| Jan 8, 9:20 AM EST | Flash Flood Warning | CTP | McKean | 5 hr |
| Jan 8, 10:35 AM EST | Flash Flood Warning | CTP | Cumberland, Franklin, Perry | 4 hr |
| Jan 8, 11:42 AM EST | Flash Flood Warning | CTP | Adams, York | 4 hr |
| Jan 8, 11:42 AM EST | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon, Schuylkill | 4 hr |
| Jan 8, 12:04 PM EST | Flash Flood Warning | CTP | Potter | 4 hr |
| Jan 8, 12:26 PM EST | Flash Flood Warning | CTP | Juniata, Northumberland, Snyder | 4 hr |
| Jan 8, 12:26 PM EST | Flash Flood Warning | CTP | Columbia, Montour | 4 hr |
| Jan 8, 12:26 PM EST | Flash Flood Warning | CTP | Union | 4 hr |
| Jan 8, 1:28 PM EST | Flash Flood Warning | CTP | Lycoming, Sullivan | 4 hr |
| Jan 8, 1:31 PM EST | Flash Flood Warning | CTP | McKean, Warren | 4 hr |
| Jan 8, 2:02 PM EST | Flash Flood Warning | CTP | Bedford, Blair, Fulton, Huntingdon | 4 hr |
| Jan 8, 2:02 PM EST | Flash Flood Warning | CTP | Mifflin | 4 hr |
| Jan 8, 2:42 PM EST | Flash Flood Warning | CTP | Cumberland, Franklin, Perry | 4 hr |
| Jan 8, 3:36 PM EST | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon, Schuylkill | 6 hr |
| Jan 8, 3:36 PM EST | Flash Flood Warning | CTP | Adams, York | 6 hr |
| Jan 8, 3:52 PM EST | Flash Flood Warning | CTP | Potter | 6 hr |
| Jan 8, 4:17 PM EST | Flash Flood Warning | CTP | Cameron | 6 hr |
| Jan 8, 4:27 PM EST | Flash Flood Warning | CTP | Dauphin, Lancaster, Lebanon, York | 6 hr |
| Jan 8, 4:27 PM EST | Flash Flood Warning | CTP | Centre, Clinton, Mifflin, Union | 6 hr |
| Jan 8, 4:27 PM EST | Flash Flood Warning | CTP | Columbia, Juniata, Lycoming, Montour, Northumberland, Perry and 2 more | 6 hr |
| Jan 8, 4:27 PM EST | Flash Flood Warning | CTP | Sullivan | 6 hr |
| Jan 8, 4:27 PM EST | Flash Flood Warning | CTP | Adams, Cumberland | 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; radar from the NEXRAD Level II archive.