Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 28, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 25, 1994, 5:11 PM EDT for Clinton County, Pennsylvania. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 25, 1994, 5:11 PM EDT (21:11 UTC)
- Expired
- Aug 25, 1994, 7:15 PM EDT
- In force
- 2 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Clinton County, PA
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.2 hours before the alert went out and 208 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
- 242 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 677 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 252112 FFWCTP PAC035-252315- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 511 PM EDT THU AUG 25 1994 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 715 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN PENNSYLVANIA ...SOUTHERN (1,3,4)..CLINTON COUNTY 2 INCHES OF RAIN WAS REPORTED IN HAINEYVILLE AND SWISSDALE AREAS IN LESS THAN AN HOUR SHORTLY BEFORE 5 PM. ADDITIONAL HEAVY RAIN OVER CENTRAL CLINTON COUNTY WILL MOVE SOUTHEAST ACROSS THE SAME AREA. THIS SHOULD CAUSE SIGNIFICANT DRAINAGE FLOODING. 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.
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 25, 3:46 PM EDT, 1 hour 25 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042- 045-046-049>053-056>059-063>066-252100- SPECIAL WEATHER STATEMENT AND NOWCAST NATIONAL WEATHER SERVICE STATE COLLEGE PA 340 PM EDT THU AUG 25 1994 ...ISOLATED THUNDERSTORMS WILL BE OVER CENTRAL PENNSYLVANIA THIS AFTERNOON... STORMS WITH TORRENTIAL RAIN...AND POSSIBLE BRIEF GUSTY WINDS AND SMALL HAIL...WERE OVER WESTERN PENNSYLVANIA...JUST WEST OF DUBOIS ...AND 20 MILES NORTH OF WILLIAMSPORT AT 330 PM. THESE STORMS ARE MOVING SOUTHEAST AT 20 MILES AN HOUR...AND WILL BE JUST EAST OF WILLIAMSPORT AND PHILIPSBURG BY 5 PM. OTHER STORMS WERE JUST SOUTHEAST OF ERIE...AND WILL BE MOVING ACROSS SOUTHWEST WARREN COUNTY BY 430 PM. THESE STOHRMS MAY HAVE BRIEF GUSTY WINDS AND SMALL HAIL. IF THREATENING WEATHER OCCURS...SEEK SHELTER QUICKLY. MARTIN
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 4:03 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming | 57 min |
| Aug 25, 4:37 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 68 min |
| Aug 25, 4:53 PM EDT | Tornado Warning | CTP | Clinton | 67 min |
| Aug 25, 5:49 PM EDT | Severe Thunderstorm Warning | CTP | Union | 56 min |
| Aug 25, 6:22 PM EDT | Flash Flood Warning | CTP | Centre, Union | 2 hr |
| Aug 25, 6:35 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Tioga | 55 min |
| Aug 25, 7:07 PM EDT | Flash Flood Warning | CTP | Lycoming, Tioga | 3 hr |
| Aug 25, 7:30 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Perry | 60 min |
| Aug 25, 7:53 PM EDT | Flash Flood Warning | CTP | Lycoming, Tioga | 4 hr |
| Aug 25, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 63 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.