Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 43, NWS State College, PA

May 11, 1996Tioga County, Pennsylvania

NWS State College, PA issued this flash flood warning at May 11, 1996, 1:48 PM EDT for Tioga 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: May 11, 1996, 1:48 PM EDT (17:48 UTC)
Expired: May 11, 1996, 5:45 PM EDT
In force: 4 hr
Issued by: NWS State College, PA
Area: Whole counties

County Tioga County, PA

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.8 hours before the alert went out and 175 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 546 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCTP 111750
FFWCTP
PAC117-112145-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
148 PM EDT SAT MAY 11 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  PENNSYLVANIA
 
   ...TIOGA COUNTY
 
RAIN OF NEARLY 1/2 INCH HAS FALLEN ACROSS PARTS OF TIOGA COUNTY IN THE
PAST COUPLE HOURS...AND RADAR INDICATES MORE HEAVY RAIN MOVING EAST FROM
POTTER AND CAMERON COUNTIES.
 
MODERATE TO HEAVY RAIN WILL CONTINUE OVER THE AREA THROUGH LATE
AFTERNOON.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE 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 May 11, 10:15 AM EDT, 3 hours 33 minutes earlier.

Area forecast discussion, May 11, 10:15 AM EDT, 3 hours 33 minutes before

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1015 AM EDT SAT MAY 11 1996

FLOOD WATCHES LOOK GOOD.   12Z SURFACE ANAL SHOWED THE FRONT
EXTENDING FROM BGM SOUTHWEST TO PIT WITH A WEAK LOW CENTER JUST
SOUTHWEST OF PIT.  HEAVY RAIN TRACKING OUT OF OHIO INTO THE
NORTHERN MOUNTAINS OF PA.  YNG HAD .95 IN PAST 6 HOURS IN
FAVORABLE LOCATION TO THE EAST OF THE UPPER SHORT WAVE AND JUST
NORTH OF THE WEAK SURFACE LOW.  WE ALSO HAD A SKYWARN REPORT OF
RAIN OF .80 IN KANE SINE 7 AM.  RAIN SHOULD CONTINUE TO PROGRESS
EAST AND NORTHEAST BEHIND THE FRONT AS THE UPPER WAVE MOVES EAST
OUT OF OHIO.

CTP RADAR DOWN AWAITING PART.

DUNHAM

In the hours before

Local storm report, May 11, 10:43 AM EDT, 3 hours 5 minutes before

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1042 AM EDT SAT MAY 11 1996

TIME EDT   ...CITY LOCATION..........ST   ...EVENT/REMARKS
           ...COUNTY LOCATION........

0956 AM    LUDLOW                    PA   FLOOD
05/11/96   WARREN                         STREAM FLOODING ALONG
                                          RTE 6 NEAR LUDLOW

1038 AM    SHEFFIELD                 PA   FLOOD
05/11/96   WAR\REN                         BASEMENTS BEING PUMPED
                                          IN SHEFFIELD.

DUNHAM

Special weather statement, May 11, 11:46 AM EDT, 2 hours 2 minutes before

PAZ056>059-063>066-112300-

SPECIAL WEATHER STATEMENT - SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1145 AM EDT SAT MAY 11 1996

THE STORMS PREDICTION CENTER IN KANSAS CITY SAYS THERE IS A SLIGHT RISK OF SEVERE
WEATHER THIS AFTERNOON AND EVENING ACROSS PORTIONS OF EASTERN PENNSYLVANIA
INCLUDING THE LOWER SUSQUEHANNA VALLEY.

A SLOW MOVING COLD FRONT WILL CROSS PENNSYLVANIA TODAY...REACHING THE LOWER
SUSQUEHANNA VALLEY LATE IN T\HE AFTERNOON.  THIS FRONT WILL TRIGGER SHOWERS AND
THUNDERSTORMS.  SOME OF THE THUNDERSTORMS MAY CONTAIN STRONG WINDS AND HAIL.

SKYWARN SPOTTER NETWORKS MAY NEED TO BE ACTIVATED LATER TODAY OR THIS EVENING.

JUNG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 8:55 PM EDT	Flash Flood Warning	CTP	Warren	3 hr
May 11, 12:40 PM EDT	Flash Flood Warning	CTP	Elk, McKean, Warren	5 hr
May 11, 12:40 PM EDT	Flash Flood Warning	CTP	Cameron, Potter	5 hr
May 11, 1:51 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder	54 min
May 11, 2:01 PM EDT	Severe Thunderstorm Warning	CTP	Franklin	59 min
May 11, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland	56 min
May 11, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Perry	56 min
May 11, 2:17 PM EDT	Severe Thunderstorm Warning	CTP	Northumberland	58 min
May 11, 2:33 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, York	87 min
May 11, 2:44 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Schuylkill	61 min
May 11, 2:56 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	94 min
May 11, 3:17 PM EDT	Tornado Warning	CTP	Schuylkill	43 min

Nearby

Flash Flood Warnings in Pennsylvania, 1996 Every flash flood warning in 1996

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.