Alert archive / Pennsylvania / Flash Flood Warnings in 1994

Flash Flood Warning 36, NWS State College, PA

August 27, 1994Elk County, Pennsylvania

NWS State College, PA issued this flash flood warning at Aug 27, 1994, 3:15 PM EDT for Elk County, Pennsylvania. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Aug 27, 1994, 3:15 PM EDT (19:15 UTC)
Expired
Aug 27, 1994, 4:15 PM EDT
In force
60 min
Issued by
NWS State College, PA
Area
Whole counties

County Elk County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.3 hours before the alert went out and 166 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-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 1994-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 949 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1994-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
949 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
13 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 271917
FFWCTP
PAC047-272015-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
315 PM EDT SAT AUG 27 1994
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  415 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...S...
 
IN  PENNSYLVANIA
 
   ...ELK COUNTY
 
AT 310 PM...WEATHER SERVICE DOPPLER RADAR IN STATE COLLEGE SHOWED A BAND
OF SEVERE THUNDERSTORMS FROM RUSSEL CITY IN NORTHWEST ELK COUNTY TO 10
MILES EAST OF ST MAYRS. THESE THUNDERSTORMS WERE NEARLY STATIONARY AND
ARE PRODUCING VERY HEAVY RAINFALL. RADAR ESTIMATES BETWEEN ONE AND TWO
INCHES OF RAIN IN THE LAST HOUR HAVE BEEN OBSERVED IN ELK COUNTY.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME ORD BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
 
JUNG

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.

In the hours before

Special weather statement, Aug 27, 1:17 PM EDT, 1 hour 58 minutes before
PAZ004>006-037-041-042-271820-

SPECIAL WEATHER STATEMENT - THUNDERSTORMS
NATIONAL WEATHER SERVICE STATE COLLEGE PA
117 PM EDT SAT AUG 27 1994

...STRONG THUNDERSTORM APPROACHING THE COUDERSPORT AREA...

AT 115 PM EDT... DOPPLER RADAR FROM STATE COLLEGE SHOWED A STRONG
THUNDERSTORM ABOUT 10 MILES WEST OF COUDERSPORT. THIS STORM WILL MOVE
EAST ALONG RTE 6 AND CROSS THE COUDERSPORT AREA AROUND 130 PM. THIS
STORM WILL REACH NEAR GALETON BY 215 PM.

THIS THUNDERSTORM WAS PART OF AN AREA OF SCATTERED THUNDERSTORMS THAT
EXTENDED ALONG THE NORTHERN TIER COUNTIES FROM TIOGA COUNTY WEST TO
WARREN COUNTY. SCATTERED THUNDERSTORMS WILL CONTINUE IN NORTH CENTRAL
PENNSYLVANIA THROUGH 3 PM.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.

NICOSIA
Special weather statement, Aug 27, 1:18 PM EDT, 1 hour 57 minutes before
PAZ004>006-037-041-042-271820-

SPECIAL WEATHER STATEMENT - THUNDERSTORMS
NATIONAL WEATHER SERVICE STATE COLLEGE PA
117 PM EDT SAT AUG 27 1994

...STRONG THUNDERSTORM APPROACHING THE COUDERSPORT AREA...

AT 115 PM EDT... DOPPLER RADAR FROM STATE COLLEGE SHOWED A STRONG
THUNDERSTORM ABOUT 10 MILES WEST OF COUDERSPORT. THIS STORM WILL MOVE
EAST ALONG RTE 6 AND CROSS THE COUDERSPORT AREA AROUND 130 PM. THIS
STORM WILL REACH NEAR GALETON BY 215 PM.

THIS THUNDERSTORM WAS PART OF AN AREA OF SCATTERED THUNDERSTORMS THAT
EXTENDED ALONG THE NORTHERN TIER COUNTIES FROM TIOGA COUNTY WEST TO
WARREN COUNTY. SCATTERED THUNDERSTORMS WILL CONTINUE IN NORTH CENTRAL
PENNSYLVANIA THROUGH 3 PM.

AT SIGNS OFR AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.

NICOSIA

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 1:47 PM EDTSevere Thunderstorm WarningCTPPotter43 min
Aug 27, 2:15 PM EDTSevere Thunderstorm WarningCTPCameron, McKean60 min
Aug 27, 2:23 PM EDTFlash Flood WarningCTPMcKean3 hr
Aug 27, 2:39 PM EDTSevere Thunderstorm WarningCTPTioga36 min
Aug 27, 2:52 PM EDTSevere Thunderstorm WarningCTPColumbia, Sullivan38 min
Aug 27, 3:56 PM EDTSevere Thunderstorm WarningCTPLycoming49 min
Aug 27, 4:12 PM EDTFlash Flood WarningCTPElk, Warren4 hr
Aug 27, 4:16 PM EDTSevere Thunderstorm WarningCTPMonroe, Northampton44 min
Aug 27, 4:56 PM EDTSevere Thunderstorm WarningCTPClearfield64 min
Aug 27, 5:03 PM EDTSevere Thunderstorm WarningCTPNorthampton42 min
Aug 27, 5:07 PM EDTSevere Thunderstorm WarningCTPNorthumberland, Union68 min
Aug 27, 5:32 PM EDTSevere Thunderstorm WarningCTPColumbia58 min
Aug 27, 6:20 PM EDTSevere Thunderstorm WarningCTPSchuylkill55 min
Aug 27, 6:37 PM EDTSevere Thunderstorm WarningCTPDauphin68 min
Aug 27, 6:55 PM EDTSevere Thunderstorm WarningCTPBerks65 min
Aug 27, 7:31 PM EDTSevere Thunderstorm WarningCTPJuniata, Mifflin44 min

Nearby

Flash Flood Warnings in Pennsylvania, 1994Every flash flood warning in 1994

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.