Alert archive / Pennsylvania / Flash Flood Warnings in 1993
Flash Flood Warning 30, NWS Cleveland, OH
NWS Cleveland, OH issued this flash flood warning at Nov 27, 1993, 6:47 PM EST for Cameron County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Nov 27, 1993, 6:47 PM EST (23:47 UTC)
- Expired
- Nov 27, 1993, 9:45 PM EST
- In force
- 3 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Cameron County, PA
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 11.8 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1099 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 352 m²/s²
- 0-3 km storm-relative helicity
- 292 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KERI 280658 FFWERI PAC023-280245- BULLETIN - EBS ACTIVATION REQUESTED...CORRECTED FOR TIME FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ERIE PA 150 AM EST SUN NOV 28 1993 THE NATIONAL WEATHER SERVICE IN ERIE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 600 AM EST SUNDAY FOR THE FOLLOWING LOCATION... IN NORTHWEST PENNSYLVANIA ...POTTER COUNTY HEAVY RAIN THAT HAS BEEN FALLING OVER POTTER COUNTY DURING THE PAST FEW HOURS HAS PRODUCED SOME FLOODING OVER ROUTE 872 IN THE SOUTHERN PART OF THE COUNTY. SMALL STREAMS ARE ALSO RUNNING HIGH AND WILL GO OVER THEIR BANKS AS THE RAIN CONTINUES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, 52 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, 47 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, 46 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
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.