Alert archive / Pennsylvania / Flash Flood Warnings in 1993

Flash Flood Warning 31, NWS Cleveland, OH

November 27, 1993Cameron County, Pennsylvania

NWS Cleveland, OH issued this flash flood warning at Nov 27, 1993, 11:45 PM EST for Cameron County, Pennsylvania. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Nov 27, 1993, 11:45 PM EST (04:45 UTC)
Expired
Nov 28, 1993, 4:00 AM EST
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Whole counties

County Cameron County, PA

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 4.8 hours before the alert went out and 171 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, Buffalo Intl Airport, NY at 00:00Z on 1993-11-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Buffalo Intl Airport, NY at 00:00Z on 1993-11-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 266 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
507 m above ground
0-6 km bulk shear
91 kt
0-1 km storm-relative helicity
266 m²/s²
0-3 km storm-relative helicity
838 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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.

In the hours before

Special weather statement, Nov 27, 5:55 PM EST, 5 hours 50 minutes before
OHZ010>014-290100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
555 PM EST SAT NOV 27 1993

SNOW WAS FALLING ALONG THE LAKE ERIE SHORELINE FROM CLEVELAND...EAST
INTO NORTHWEST PENNSYLVANIA.

AT 555 PM...RADAR SHOWED ABOUT A 15 MILE WIDE BAND OF SNOW FROM
LORAIN...EAST ALONG THE LAKESHORE INTO NORTHWEST PENNSYLVANIA. THIS BAND
OF SNOW WAS SINKING SLOWLY SOUTH INTO THE LAKESHORE COUNTIES.

SINCE ABOUT 4 PM...1 TO 2 INCHES OF SNOW HAD FALLEN FROM LAKE COUNTY
EAST THROUGH NORTHERN ASHTABULA COUNTY. THE WEST END OF THE SNOW BAND
WILL DROP THROUGH NORTHERN LORAIN AND CUYAHOGA COUNTIES BY 700 PM. SOME
BRIEF BURSTS OF SNOW IN THOSE AREAS COULD REDUCE VISIBILITIES TO LESS
THAN 3 MILES A PUT DOWN A COATING OF NEW SNOW.

THE SNOW WILL CONTINUE THROUGH THE EVENING HOURS ALONG THE LAKESHORE
EAST OF CLEVELAND. SEVERAL INCHES OF NEW SNOW COULD FALL THERE
OVERNIGHT.

IF YOU NEED TO TRAVEL TONIGHT ALONG THE LAKE ERIE SHORELINE...BE ALERT
FOR SLIPPERY DRIVING CONDITIONS. ALSO...YOU MAY WANT TO ALLOW SOME EXTRA
TIME TO GET TO YOUR DESTINATION...ESPECIALLY IF YOU ARE TRAVELING TO
THE EAST OF CLEVELAND.

GABRIC
Special weather statement, Nov 27, 6:00 PM EST, 5 hours 45 minutes before
OHZ011-020-280100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
600 PM EST SAT NOV 27 1993

A MIXTURE OF SNOW...FREEZING RAIN AND RAIN WAS FALLING ACROSS NORTH
CENTRAL OHIO THIS EVENING.

SPECIAL EVENT OBSERVERS FOR THE NATIONAL WEATHER SERVICE IN BROOKLYN AND
GARFIELD HEIGHTS IN THE CLEVELAND AREA REPORTED A MIXTURE OF SNOW AND
FREEZING RAIN. THEY REPORTED THAT ICE WAS ACCUMULATING ON EXPOSED
SURFACES SUCH AS TREES AND MAIL BOXES. ALSO...SOME SIDEWALKS WERE
REPORTED SLIPPERY.

A MIXTURE OF PRECIPITATION IS LIKELY TO CHANGE TO ALL SNOW ACROSS NORTH
CENTRAL OHIO BEFORE ENDING THIS EVENING. LITTLE OR NO SNOW ACCUMULATION
IS EXPECTED...BUT EVEN A THIN COATING OF SNOW OR ICE COULD MAKE THINGS
SLIPPERY WITH TEMPERATURES HOVERING AT OR JUST BELOW FREEZING. SOME
SLICK SPOTS MAY DEVELOP ON BRIDGES AND OVERPASSES AS WELL AS ON
SECONDARY ROADS.

AT 600 PM...RADAR INDICATED THE BACK EDGE OF THE PRECIPITATION AREA
EXTENDED FROM CENTRAL LAKE ERIE...THROUGH EASTERN LORAIN COUNTY AND
WESTERN MEDINA COUNTIES AND THEN SOUTHEAST TO NEAR WOOSTER IN WAYNE
COUNTY.

THE PRECIPITATION AREA WAS MOVING VERY SLOWLY EAST...SO THE
PRECIPITATION SHOULD GRADUALLY END OVER CUYAHOGA AND MEDINA COUNTIES BY
9 PM.

GABRIC
Special weather statement, Nov 27, 6:01 PM EST, 5 hours 44 minutes before
OHZ011-020-280100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
600 PM EST SAT NOV 27 1993

A MIXTURE OF SNOW...FREEZING RAIN AND RAIN WAS FALLING ACROSS NORTH
CENTRAL OHIO THIS EVENING.

SPECIAL EVENT OBSERVERS FOR THE NATIONAL WEATHER SERVICE IN BROOKLYN AND
GARFIELD HEIGHTS IN THE CLEVELAND AREA REPORTED A MIXTURE OF SNOW AND
FREEZING RAIN. THEY REPORTED THAT ICE WAS ACCUMULATING ON EXPOSED
SURFACES SUCH AS TREES AND MAIL BOXES. ALSO...SOME SIDEWALKS WERE
REPORTED SLIPPERY.

A MIXTURE OF PRECIPITATION IS LIKELY TO CHANGE TO ALL SNOW ACROSS NORTH
CENTRAL OHIO BEFORE ENDING THIS EVENING. LITTLE OR NO SNOW ACCUMULATION
IS EXPECTED...BUT EVEN A THIN COATING OF SNOW OR ICE COULD MAKE THINGS
SLIPPERY WITH TEMPERATURES HOVERING AT OR JUST BELOW FREEZING. SOME
SLICK SPOTS MAY DEVELOP ON BRIDGES AND OVERPASSES AS WELL AS ON
SECONDARY ROADS.

AT 600 PM...RADAR INDICATED THE BACK EDGE OF THE PRECIPITATION AREA
EXTENDED FROM CENTRAL LAKE ERIE...THROUGH EASTERN LORAIN COUNTY AND
WESTERN MEDINA COUNTIES AND THEN SOUTHEAST TO NEAR WOOSTER IN WAYNE
COUNTY.

THE PRECIPITATION AREA WAS MOVING VERY SLOWLY EAST...SO THE
PRECIPITATION SHOULD GRADUALLY END OVE0R CUYAHOGA AND MEDINA COUNTIES BY
9 PM.

GABRIC
Special weather statement, Nov 27, 7:30 PM EST, 4 hours 15 minutes before
OHZ011>013-020-280200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
730 PM EST SAT NOV 27 1993

SNOW WAS FALLING IN THE CLEVELAND AREA THIS EVENING WITH A MIXTURE OF
SNOW AND FREEZING RAIN IN LAKE AND GEAUGA COUNTIES.

SINCE THE RAIN CHANGED TO SNOW IN THE CLEVELAND AREA LATE THIS
AFTERNOON...AROUND 1/2 INCH OF SNOW HAS ACCUMULATED. THIS THIN COATING
OF SNOW HAS BEEN SUFFICIENT TO PRODUCE SOME SLICK SPOTS ON THE
HIGHWAYS...ESPECIALLY ON SECONDARY ROADS.

THE MIXTURE OF PRECIPITATION EAST OF CLEVELAND IN LAKE AND GEAUGA
COUNTIES WILL CHANGE TO ALL SNOW BY 9 PM. A THIN COATING OF SNOW IS
POSSIBLE IN THAT AREA ALSO. ALSO...A BRIEF PERIOD OF FREEZING RAIN COULD
OCCUR. HENCE...SOME HAZARDOUS TRAVEL CONDITIONS ARE POSSIBLE ALL ALONG
THE LAKESHORE OF NORTHEAST OHIO THIS EVENING.

IF YOU NEED TO TRAVEL TONIGHT...BE ALERT FOR SLIPPERY DRIVING
CONDITIONS. ALSO...YOU MAY WANT TO ALLOW SOME EXTRA TIME TO GET TO
YOUR DESTINATION.

AT 730 PM...RADAR INDICATED THE BACK EDGE OF THE PRECIPITATION AREA
EXTENDED FROM CENTRAL LAKE ERIE...SOUTH ALONG THE CUYAHOGA/LORAIN
COUNTIES BORDER AND THEN SOUTHEAST ACROSS EASTERN MEDINA COUNTY.

THE PRECIPITATION AREA WAS MOVING VERY SLOWLY NORTHEAST...SO THE
PRECIPITATION SHOULD GRADUALLY END OVER CUYAHOGA AND MEDINA COUNTIES BY
10 PM AND OVER THE EAST LAKESHORE BY MIDNIGHT.

GABRIC
Special weather statement, Nov 27, 7:30 PM EST, 4 hours 15 minutes before
OHZ011>013-020-280200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
730 PM EST SAT NOV 27 1993

SNOW WAS FALLING IN THE CLEVELAND AREA THIS EVENING WITH A MIXTURE OF
SNOW AND FREEZING RAIN IN LAKE AND GEAUGA COUNTIES.

SINCE THE RAIN CHANGED TO SNOW IN THE CLEVELAND AREA LATE THIS
AFTERNOON...AROUND 1/2 INCH OF SNOW HAS ACCUMULATED. THIS THIN COATING
OF SNOW HAS BEEN SUFFICIENT TO PRODUCE SOME SLICK SPOTS ON THE
HIGHWAYS...ESPECIALLY ON SECONDARY ROADS.

THE MIXTURE OF PRECIPITATION EAST OF CLEVELAND IN LAKE AND GEAUGA
COUNTIES WILL CHANGE TO ALL SNOW BY 9 PM. A THIN COATING OF SNOW IS
POSSIBLE IN THAT AREA ALSO. ALSO...A BRIEF PERIOD OF FREEZING RAIN COULD
OCCUR. HENCE...SOME HAZARDOUS TRAVEL CONDITIONS ARE POSSIBLE ALL ALONG
THE LAKESHORE OF NORTHEAST OHIO THIS EVENING.

IF YOU NEED TO TRAVEL TONIGHT...BE ALERT FOR SLIPPERY DRIVING
CONDITIONS. ALSO...YOU MAY WANT TO ALLOW SOME EXTRA TIME TO GET TO
YOUR DESTINATION.

AT 730 PM...RADAR INDICATED THE BACK EDGE OF THE PRECIPITATION AREA
EXTENDED FROM CENTRAL LAKE ERIE...SOUTH ALONG THE CUYAHOGA/LORAIN
COUNTIES BORDER AND THEN SOUTHEAST ACROSS EASTERN MEDINA COUNTY.

THE PRECIPITATION AREA WAS MOVING VERY SLOWLY NORTHEAST...SO THE
PRECIPITATION SHOULD GRADUALLY END OVER CUYAHOGA AND MEDINA COUNTIES BY
10 PM AND OVER THE EAST LAKESHORE BY MIDNIGHT.

GABRIC

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 28, 1:50 AM ESTFlash Flood WarningCLEPotter4 hr

Nearby

Flash Flood Warnings in Pennsylvania, 1993Every flash flood warning in 1993

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.