Alert archive / Pennsylvania / Flash Flood Warnings in 1990
Flash Flood Warning 18, NWS State College, PA
NWS State College, PA issued this flash flood warning at Oct 23, 1990, 3:05 PM EDT for Huntingdon County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Oct 23, 1990, 3:05 PM EDT (19:05 UTC)
- Expired
- Oct 23, 1990, 6:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Huntingdon 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.1 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
- 345 J/kg
- Mixed-layer CIN
- -493 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 206 m²/s²
- 0-3 km storm-relative helicity
- 234 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 KHAR 231913 COR
FFWHAR
PAC061-232200-
BULLETIN - EBS ACTIVATION REQUESTED
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE HARRISBURG PA...CORRECTED TEXT
305 PM EDT TUE OCT 23 1990
THE NATIONAL WEATHER SERVICE IN HARRISBURG HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL 600 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH CENTRAL PENNSYLVANIA
...NORTHERN HUNTINGDON
AT 300 PM HUNTINGDON COUNTY OFFICIALS REPORTED FLOODING OF SHAVERS
CREEK IN THE DIAMOND VALLEY. STATE ROAD 1008 IS CLOSED DUE TO WATER ON
THE ROAD.
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...O9R LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
TKWhat 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 4 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 7 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, 13 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, 3:03 PM EDT | Flash Flood Warning | CTP | Lycoming, Sullivan | 6 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.