Flash Flood Warning 38, NWS State College, PA

Issued

Nov 7, 1997, 5:39 PM EST (22:39 UTC)

Expired

Nov 7, 1997, 9:45 PM EST

In force

4 hr

Issued by

NWS State College, PA

Area

Whole counties

Counties Adams County, PA, Cumberland County, PA

The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 22:38 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 072242
FFWCTP
PAC001-041-080245-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
539 PM EST FRI NOV 7 1997
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  945 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN  PENNSYLVANIA
 
   ...ADAMS COUNTY...CUMBERLAND COUNTY
 
AT 530 PM EST WATER ALONG MOUNTAIN CREEK IN SOUTHERN CUMBERLAND COUNTY
BEGAN TO LEAVE ITS BANKS. WITH MORE RAINFALL ON THE WAY THIS EVENING
AND OVERNIGHT, SMALL STREAM AND CREEKS WILL CONTINUE TO RISE.  THEREFORE
THE NATIONAL WEATHER SERVICE IS ISSUING A FLASH FLOOD WARNING FOR BOTH
CUMBERLAND AND ADAMS COUNTIES.
 
PEOPLE LIVING ALONG STREAMS AND CREEKS SHOULD BE ALERT FOR RAPIDLY
RISING WATERS.  STAY TUNED NOAA WEATHER RADIO OR YOU LOCAL NEWS MEDIA
FOR FURTHER INFORMATION.
 
PAY PARTICULAR ATTENTION AT NIGHT WHEN THE DANGERS OF FLOODING AND FLASH
FLOODING ARE NOT AS APPARE&NT.  DO NOT DRIVE THROUGH WATER COVERING
ROADWAYS.  WATER MAY BE TOO DEEP FOR SAFE PASSAGE.
 
ONDREJIK
 
&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Nov 7, 1:51 PM EST, 3 hours 48 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
150 PM EST FRI NOV 7 1997

...ZONE SUGGESTIONS...

.PIT...GOOD CALL ON WATCH YEST...LOTS OF PRECIP YET TO COME SO WUD
LEAVE PRETTY MUCH WELL ALONE.

.PHL...GOOD CALL IN CONFINING R+ TO AREAS WEST OF YR CWA. WUD STICK
WITH OCNL R-/L- INTO SUN AM AT LEAST.

...DISCUSSION...

THE RAIN IS FALLING...THE WATCHES AND WARNINGS ARE FLYING. NOW TO
FIGURE OUT WHEN IT WILL ALL WIND DOWN.

ETA AND NGM CONTINUE TO SHOW STRONG DEEP EASTERLY FETCH AND
RESULTING POTENT LOW LEVEL CONVERGENCE ON THE NOSE OF THIS LLJ.
BEST PRECIP SEEMS TO BE FALLING IN TERRAIN FAVORED UPSLOPE
LOCATIONS ON THE FACE OF THE LAURELS WHERE NEARLY 3 INCHES HAS
FALLEN IN SPOTS PROMPTING SEVERAL FLASH FLOOD WARNINGS.

STERLING RADAR CONTINUES TO SHOW LONG TRAIN OF STRONG ECHOES FROM
CHESAPEAKE BAY UP INTO CENTRAL MTNS. THIS IS ASSOCIATED WITH STRONG
MOISTURE CONVERGENCE AXIS AS SEEN ON SFC ANAL AND PSU MESO DATA
PAGE. SYNOPTIC ETA DEPICTS STRONG LOW LEVEL FRONTOGENESIS IN THIS
REGION WHICH IT PIVOTS UP AND OVER CTRL PA THRU TONITE WHILE
BEGINNING A WEAKENING TREND AFTER 00Z. THINK BEST PRECIP WILL START
TO WANE AS LOW LEVEL WIND MAX PROPAGATES INLAND AND WE LOSE THE
STRONG CONVERGENCE. THIS SHUD BEGIN TO TAKE PLACE AFTER 00Z WITH
REAL WEAKENING SHOWING UP AFTER 06Z.

WE DON'T GET OUT OF THE WOODS JUST YET AS UPPER LOW WILL STILL BE
PRONE TO DRAGGING BACK ATLANTIC MOISTURE INTO CTRL PA. FOCUS OF
BEST RAIN SHUD SHIFT NORTHWARD WHERE BEST INFLOW OFF OCEAN
CONCENTRATES BUT ETA DUMB BELLS ANOTHER SFC WAVE BACK TWD PA COAST
SAT NITE-SUN MORNING. THE FRONTOGENESIS SHOWN ON THE NW QUAD OF
THIS SYSTEM MAY FORCE SLUG OF MORE ENHXANCED PRECIP BACK INTO ERN
SECTIONS LATER SAT AND EARLY SUN.

LA CORTE

Flash Flood Warnings in Pennsylvania, 1997Every flash flood warning in 1997

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.