Flash Flood Warning 20, NWS State College, PA

Issued

Jan 24, 1999, 8:00 AM EST (13:00 UTC)

Expired

Jan 24, 1999, 12:00 PM EST

In force

4 hr

Issued by

NWS State College, PA

Area

Whole counties

Counties Columbia County, PA, Northumberland County, PA

The State College radar (KCCX), 122 km from the middle of the area, began a volume at 13:02 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.

000 
TTAA00 KCTP 241301
FFWCTP
PAC037-097-119-241700-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
800 AM EST SUN JAN 24 1999

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLOOD WARNING FOR...
  UNION COUNTY IN CENTRAL PENNSYLVANIA.
  NORTHUMBERLAND COUNTY IN CENTRAL PENNSYLVANIA.
  COLUMBIA COUNTY IN CENTRAL PENNSYLVANIA.

* UNTIL 1200 PM EST.

* AT 8 AM...RAIN WAS ENDING ACROSS CENTRAL AND EASTERN PENNSYLVANIA.

* RUNOFF FROM EARLIER RAIN AND SNOWMELT HAS CAUSED FLOODING OF SOME
  STREAMS AND POOR DRAINAGE AREAS. IN NORTHUMBERLAND COUNTY...
  HAMILTON AND REGAN STREET UNDERPASSES ARE CLOSED IN THE TOWN OF
  SUNBURY. ELSEWHERE IN THE WARNING AREA...NUMEROUS SECONDARY ROADS
  HAVE BEEN FLOODED.

USE CAUTION WHILE TRAVELING TODAY...AS SOME ROADS AND LOW-LYING
AREAS MAY BE COVERED BY FLOODWATERS.

.END/KF

&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jan 24, 2:30 AM EST, 5 hours 30 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
230 AM EST MON JAN 24 1999

...WORK ZONES WILL BE SENT BY 330 AM AS PHLADMCTP...
...ZONES TO FOLLOW BETWEEN BY 400 AM...

OTHER THAN TWO RIVER POINTS IN A FLOOD WARNING ATTM (HARPER/S
TAVERN AND HOGESTOWN)...HYDROLOGIC ACTIVITY MUCH QUIETER THAN LAST
NIGHT. ANTICIPATE DROPPING THE FLOOD WARNINGS EARLY TODAY. LOOK FOR
PHLFLSCTP TO ANNOUNCE THE END OF THE FLOOD WARNING. ALSO WILL BE
ISSUING AN EARLY MORNING RVS FOR OTHER HIGH FLOW POINTS ON THE SUSQ.

SNOW AHEAD OF CLIPPER SYSTEM WORKING INTO WESTERN PA ATTM. SNOW HAS
JUST STARTED IN BFD DURING THE PAST HOUR...WITH VSBY/S DOWN TO 4
MILES. EXPECT ACCUMULATING SNOWS WILL PROBABLY HOLD OFF TILL EARLY
MORNING IN MY CWA.

SHORTWAVE...SUPPORTED BY UPPER JET...WORKS ACROSS PA TODAY. THE
STATE REMAINS IN THE RIGHT EXIT REGION OF THE JET THROUGH THE
AFTERNOON... SO SNOW WILL LINGER THROUGH A GOOD PART OF THE DAY.
MODELS NOW IN PRETTY GOOD AGREEMENT WITH AROUND .10 LIQUID ACROSS
THE NORTH. THIS STILL MAY BE SOMEWHAT UNDERDONE...AS 6 HR PCPN PLOTS
IN LOWER MI SHOW .10 TO .25 INCHES. OROGRAPHIC ASCENT MAY ALSO HELP
TO GENERATE A LITTLE ADDITIONAL SNOW ACROSS THE NORTHERN MTS...SO
WILL GO WITH A 1 TO 3 INCH ACCUM THERE. WILL ALSO BUMP LAURELS UP TO
AROUND AN INCH. FARTHER SOUTH AND EAST...WILL TAPER SNOW TO SNOW
SHOWERS AND FINALLY JUST LOW CHANCE POPS IN THE LOWER SUSQ.

THINGS CLEAR TONIGHT AND TUESDAY AS HIGH BUILDS IN. WILL KEEP ZONES
MOSTLY SUNNY TUESDAY...AND ONLY MENTION INCREASING HIGH CLOUDS IN
THE NORTHWEST LATE IN THE DAY.

.CTP...NONE.

JUNG

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

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.