Alert archive / Pennsylvania / Flash Flood Warnings in 1990
Flash Flood Warning 17, NWS State College, PA
NWS State College, PA issued this flash flood warning at Oct 23, 1990, 3:03 PM EDT for Lycoming County, Sullivan County, Pennsylvania. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Oct 23, 1990, 3:03 PM EDT (19:03 UTC)
- Expired
- Oct 23, 1990, 9:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Lycoming County, PA, Sullivan County, PA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.1 hours before the alert went out and 232 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
- 543 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 161 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 KIPT 231903 FFWIPT PAC081-113-240100- BULLETIN-EBS ACTIVATION REQUESTED SMALL STREAM FLOOD WARNING NATIONAL WEATHER SERVICE WILLIAMSPORT PA 303 PM EDT TUE OCT 23 1990 THE NATIONAL WEATHER SERVICE HAS ISSUED A SMALL STREAM FLOOD WARNING FOR ALL STREAMS IN LYCOMING AND SULLIVAN COUNTIES OF NORTHCENTRAL PENNSYLVANIA EFFECTIVE UNTIL 900 PM EDT THIS EVENING. RAIN HAS BEEN FALLING OVER MOST OF LYCOMING AND SULLIVAN COUNTIES SINCE 1100 PM EDT LAST NIGHT. AMOUNTS HAVE VARIED FROM JUST OVER 1 INCH TO NEARLY 3 INCHES IN ISOLATED SPOTS. AT 245 PM EDT MANY STREAMS WERE STARTING TO SHOW MODERATE RISES. AS THIS HEAVY RAIN RUNS OFF...SIGNIFICANT RISES WILL OCCUR ON ALL STREAMS. MINOR FLOODING CAN BE EXPECTED ON STREAMS IN LYCOMING AND SULLIVAN COUNTIES FOR THE REST OF THIS AFTERNOON INTO THIS EVENING. A SMALL STREAM FLOOD WARNING MEANS THAT SMALL STREAM FLOODING IS IMMINENT OR IS ALREADY OCCURRING. TAKE NECESSARY SAFETY STEPS OR PRECAUTIONS AS SOON AS PO-SSIBLE. TO REPORT FLOODING CALL THE NEAREST LAW ENFORCEMENT AGENCY OR EMERGENCY MANAGEMENT OFFICE AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. HM/PMG/KF
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, Oct 23, 11:01 AM EDT, 4 hours 2 minutes before
PAZ006-009-231700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 1055 AM EDT TUE OCT 23 1990 ...RAINS CONTINUE OVER MUCH OF CENTRAL PENNSYLVANIA AND SMALL STREAM FLOOD WATCH REMAINS IN EFFECT... AT 1045 AM WE RECEIVED A REPORT FROM CUMBERLAND COUNTY THAT THE MOUNTAIN CREEK...BELOW LAUREL LAKE WAS NEAR BANKFUL AND ABOVE THE LAKE IT WAS BEGINNING TO OVERSPILL ITS BANKS. ADAMS COUNTY REPORTED SOME WATER ON ROADWAYS BUT ALL ROADS PASSABLE. SOME BASEMENT FLOODING REPORTED. EARLIER HUNTINGDON COUNTY REPORTED SOME WATER ON ROADS BUT ROADS WERE PASSABLE...ALSO SOME REPORTS OF BASEMENT FLOODING. RAINFALL SO FAR HAS BEEN IN THE ONE INCH TO ONE AND THREE QUARTER RANGE. WSO HAR JORDAN
Special weather statement, Oct 23, 12:58 PM EDT, 2 hours 5 minutes before
PAZ008-009-231900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 100 PM EDT TUE OCT 23 1990 ...RAIN CONTINUES OVER MUCH OF CENTRAL PENNSYLVANIA AND A SMALL STREAM FLOOD WATCH REMAINS IN EFFECT... AT 1230 PM SOME ROADS WERE COVERED DUE TO MINOR FLOODING IN ADAMS COUNTY. ROADS WERE STILL PASSABLE. 1.6 INCHES OF RAIN HAD FALLEN FROM MIDNIGHT TO 1100 AM. AT 1236 PM NORTHERN NORTHUMBERLAND COUNTY REPORTED MINOR STREET FLOODING DUE TO LEAVES CLOGGING DRAINS. RAIN WILL CONTINUE OVER THE WATCH AREA UNTIL LATE THIS EVENING. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR LOCAL RADIO OR TV STATIOMS FOR FURTHER INFORMATION. TK
Special weather statement, Oct 23, 2:52 PM EDT, 11 minutes before
PAZ008-009-232100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE HARRISBURG PA. 300 PM EDT TUE OCT 23 1990 ...A SMALL STREAM FLOOD WATCH REMAINS IN EFFECT... AT 245 PM MOST AREAS OF CENTRAL PENNSYLVANIA CONTINUED TO RECIEVE LIGHT TO MODERATE RAIN. THE RAIN HAS BEEN SPREAD OVER ENOUGH TIME THAT ONLY MINOR FLOODING OF SMALL CREEKS HAS OCCURRED SO FAR. THE SMALL STREAM FLOOD WATCH WILL REMAIN IN EFFECT UNTIL LATE THIS EVENING AS RAIN IS EX$PECTED TO CONTINUE AND MOST AREA STREAMS ARE NEAR FULL NOW. RAIN WILL CONTINUE OVER THE WATCH AREA UNTIL LATE THIS EVENING. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR LOCAL RADIO OR TV STATION FOR FURTHER INFORMATION ON THIS RAIN EVENT. TK
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 23, 3:05 PM EDT | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Oct 23, 3:19 PM EDT | Flash Flood Warning | CTP | York | 4 hr |
| Oct 23, 3:31 PM EDT | Flash Flood Warning | CTP | Mifflin | 4 hr |
| Oct 23, 3:40 PM EDT | Flash Flood Warning | CTP | Bradford, Tioga | 5 hr |
| Oct 23, 4:00 PM EDT | Flash Flood Warning | CTP | Union | 4 hr |
| Oct 23, 7:09 PM EDT | Flash Flood Warning | CTP | Snyder, Union | 3 hr |
| Oct 23, 7:09 PM EDT | Flash Flood Warning | CTP | York | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 1990Every flash flood warning in 1990
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.