Alert archive / Pennsylvania / Flash Flood Warnings in 2003
Flash Flood Warning 7, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jun 21, 2003, 3:40 PM EDT for Adams County, Cumberland County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 21, 2003, 3:40 PM EDT (19:40 UTC)
- Expired
- Jun 21, 2003, 6:45 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Adams County, PA, Cumberland County, PA
The radar
The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 19:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.7 hours before the alert went out and 120 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 691 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -76 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS51 KCTP 211942
FFWCTP
PAC001-041-212245-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
340 PM EDT SAT JUN 21 2003
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CUMBERLAND COUNTY IN SOUTH CENTRAL PENNSYLVANIA
ADAMS COUNTY IN SOUTH CENTRAL PENNSYLVANIA
* UNTIL 645 PM EDT.
* AT 330 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH VERY HEAVY RAINFALL.
SLOW MOVING AND TRAINING THUNDERSTORMS ARE PRODUCING TORRENTIAL
RAINFALL IN THE WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL
WILL CAUSE FLASH FLOODING OVER SOUTH MOUNTAIN SOUTHEAST OF PINE
GROVE FURNACE. PARTICULARLY SUSCEPTIBLE TO FLASH FLOODING ARE AREAS
OF HIGHER TERRAIN IN AND SOUTH OF THE PINE GROVE FURNACE STATE PARK
IN SOUTHERN CUMBERLAND COUNTY...SOUTHWARD TO GARDNERS AND LATIMORE
IN NORTHERN ADAMS COUNTY.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.
$$
LAT...LON 4008 7713 4006 7712 4001 7711 3992 7737
3999 7744 4004 7740 4008 7731 4009 7726
4009 7716
DEVOIR/DANGELO1 follow-up statement
000
WGUS71 KCTP 212209
FFSCTP
PAC001-041-055-212245-
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
559 PM EDT SAT JUN 21 2003
...FLASH FLOOD WARNINGS CONTINUE FOR CUMBERLAND AND ADAMS COUNTIES
UNTIL 645 PM...AND FOR FRANKLIN COUNTY UNTIL 715 PM...
AT 556 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SHOWERS AND THUNDERSTORMS PRODUCING VERY HEAVY RAIN FROM
NEAR INTERSTATE 81 IN FRANKLIN COUNTY...EAST ACROSS PORTIONS OF
ADAMS COUNTY. THIS AREA OF RAIN HAS SHOWN A SLIGHT WEAKENING TREND
AND SOUTHWARD DRIFT OVER THE PAST HOUR. THE HEAVY RAIN SHOULD
CONTINUE TO DIMINISH EARLY THIS EVENING ACROSS CENTRAL AND SOUTHERN
PARTS OF FRANKLIN AND ADAMS COUNTIES...WITH ONLY SCATTERED LIGHTER
SHOWERS FALLING NORTH OF A LINE FROM SHIPPENSBURG TO YORK.
AT 530 PM...EMERGENCY MANAGEMENT OFFICIALS REPORTED A MUDSLIDE AT
LATIMORE AND STRAYER ROAD IN ADAMS COUNTY...ALONG WITH 5 ROAD
CLOSURES AND SOME BASEMENTS FLOODED.
THE GREATEST THREAT FOR FLASH FLOODING OVER THE NEXT HOUR WILL BE
FROM CHAMBERSBURG...TO BLACKS GAP ALONG ROUTE 30...AND SOUTH TO NEAR
WAYNESBORO.
SMALL CREEKS AND STREAMS WILL RAPIDLY FLOOD...POSSIBLY WASHING OUT
ROADS AND FLOODING NEARBY LOW AREAS.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.
CAMPERS IN THE WARNED AREA MUST MOVE TO HIGHER GROUND IMMEDIATELY.
$$
LAT...LON 4018 7765 4008 7732 4011 7709 4007 7716
4000 7703 3975 7695 3974 7738 3975 7785
LAMBERT/DEVOIRThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 4:15 PM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2003Every flash flood warning in 2003
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; radar from the NEXRAD Level II archive.