Alert archive / Pennsylvania / Flash Flood Warnings in 1999

Flash Flood Warning 60, NWS State College, PA

September 9, 1999Union County, Pennsylvania

NWS State College, PA issued this flash flood warning at Sep 9, 1999, 10:45 PM EDT for Union County, Pennsylvania. It was in force for 3 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
Sep 9, 1999, 10:45 PM EDT (02:45 UTC)
Expired
Sep 10, 1999, 2:00 AM EDT
In force
3 hr
Issued by
NWS State College, PA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Union County, PA

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Sep 9, 8:56 PM EDT, 1 hour 49 minutes earlier.

Area forecast discussion, Sep 9, 8:56 PM EDT, 1 hour 49 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
856 PM EDT THU SEP 9 1999

I HAVE DECIDED...AT THE LAST MINUTE...TO UP POPS IN THE MID-UPR
SUSQ...WHICH MESHES WITH BGM THINKING FROM THEIR ADM.

BUSY EVENING IN CENTRAL PA. MINISUPERCELL MOVED THRU NW PA ERLIER
WHILE HVY RAINS FIRED UP IN THE LOER SUSQ. MEDIA REPORTS OF 2 INCHES
IN 20 MINUTES IN WESTERN LANCASTER COUNTY A COUPLE HOURS AGO. RADAR
LOOP SHOWING THUNDER HAS DIMINISHED WITH STEADY...BUT LESS
HEAVY...STRATIFORM RAIN CONTINUING.

WEST ZONES WILL DRY AND CLEAR OUT OVERNIGHT WITH MAIN CONCERN BEING
FAR EASTERN ZONES. MODEL SOUNDINGS INDICATE DEEP MOIST ATM IN SE PA
OVERNIGHT. THIS...COMBINED WITH LIFT PROVIDED BY UPR LVL JET MAX
SWINGING THRU...SHUD KEEP THE WET MACHINE GOING INTO 12Z FRI FOR MY
SE ZONES. QUESTION IS HOW FAR NORTH THE STEADY RAIN MAKES IT. LATEST
REGIONAL RADAR LOOP SHOWING A GOOD BATCH OF RAIN CROSSING MD-PA LINE
INTO SOUTH CENTRAL PA...WITH SHOWERS FILLING IN ON AN AXIS
STRETCHING UP TO UNV. THIS AREA WILL MOVE EAST INTO MID/UPR SUSQ IN
THE NEXT COUPLE HOURS...THEREFORE THE CHANGE NOTED ABOVE.

EAST ZONES DRY OUT BY NOON FRI. COOLER MORE TRANQUIL WEATHER OVER THE
WEEKEND. THE FLOYD FLOOD NEXT WEEK?? THIS IS TURNING IN TO ONE OF
THE WETTER DROUGHTS WEVE HAD IN A WHILE.

.CTP...NONE.

OSTUNO

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 9, 8:58 PM EDTFlash Flood WarningCTPLancaster, York3 hr

Nearby

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

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.