Alert archive / Pennsylvania / River Flood Warnings in 2011

River Flood Warning 57, NWS State College, PA

April 28, 2011Dauphin County, Lebanon County, Schuylkill County, Pennsylvania

NWS State College, PA issued this river flood warning at Apr 28, 2011, 5:55 PM EDT for Dauphin County, Lebanon County, Schuylkill County, Pennsylvania. It took effect at Apr 28, 2011, 7:00 PM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Apr 28, 2011, 5:55 PM EDT (21:55 UTC)
In effect from: Apr 28, 2011, 7:00 PM EDT
Expired: Apr 29, 2011, 3:49 AM EDT
In force: 9 hr
Issued by: NWS State College, PA
Flood severity: Minor

Counties Dauphin County, PA, Lebanon County, PA, Schuylkill County, PA

The radar

The State College radar (KCCX), 137 km from the middle of the area, began a volume at 22:01 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 river

Written for the forecast point Swatara Creek at Harper Tavern (HTVP1). The gauge peaked at 9.25 ft at Apr 28, 2011, 10:00 PM EDT.

Action stage: 7 ft
Minor stage: 9 ft
Moderate stage: 12 ft
Major stage: 15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01573000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted, in the capitals the NWS used until 2016.

213 
WGUS41 KCTP 282155
FLWCTP
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
555 PM EDT THU APR 28 2011

...THE NATIONAL WEATHER SERVICE IN STATE COLLEGE, PA HAS ISSUED A 
FLOOD WARNING FOR THE FOLLOWING RIVERS IN PENNSYLVANIA...

  SWATARA CREEK AT HARPER TAVERN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...NEVER DRIVE CARS THROUGH FLOODED AREAS!!  THE WATER 
MAY BE TOO DEEP TO ALLOW SAFE PASSAGE.  MOST DEATHS THAT OCCUR DURING
FLOODING ARE RELATED TO VEHICLES TRYING TO CROSS FLOODED ROADWAYS.

AN UPDATE TO THIS PRODUCT WILL BE ISSUED LATER THIS EVENING.

&&

PAC043-075-107-290821-
/O.NEW.KCTP.FL.W.0057.110428T2300Z-110429T0821Z/
/HTVP1.1.ER.110428T2300Z.110429T0100Z.110429T0221Z.NO/
555 PM EDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE, PA HAS ISSUED A 

* FLOOD WARNING FOR 
  THE SWATARA CREEK AT HARPER TAVERN
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 5 PM THURSDAY THE STAGE WAS...8.7 FEET.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE CREEK IS FORECAST TO RISE ABOVE FLOOD STAGE THIS EVENING AND
  CREST NEAR 9.3 FEET TONIGHT. THE CREEK WILL FALL BACK BELOW FLOOD 
  STAGE LATE TONIGHT.
* AT 9.0 FEET...SEVERAL DRIVEWAYS AND OTHER MINOR ROADWAYS ARE 
  AFFECTED.  WATER BEGINS TO ENTER SOME BASEMENTS.

$$

EVANEGO/STEINBUGL

2 follow-up statements

279 
WGUS81 KCTP 290149
FLSCTP
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
949 PM EDT THU APR 28 2011

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...

  WEST BRANCH SUSQUEHANNA AT WILLIAMSPORT
  WEST BRANCH SUSQUEHANNA AT MUNCY
  WEST BRANCH SUSQUEHANNA AT MONTGOMERY
  WEST BRANCH SUSQUEHANNA AT MILTON
  WEST BRANCH SUSQUEHANNA AT LEWISBURG
  SUSQUEHANNA RIVER AT BLOOMSBURG
  SUSQUEHANNA RIVER AT DANVILLE
  SUSQUEHANNA RIVER NEAR SUNBURY
  SUSQUEHANNA RIVER AT HARRISBURG
  SUSQUEHANNA RIVER AT MARIETTA
  
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING CREEKS IN 
PENNSYLVANIA...

  BALD EAGLE CREEK NEAR BEECH CREEK STATION
  YELLOW BREECHES CREEK NEAR CAMP HILL
  SWATARA CREEK AT HARPER TAVERN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...NEVER DRIVE CARS THROUGH FLOODED AREAS!!  THE WATER 
MAY BE TOO DEEP TO ALLOW SAFE PASSAGE.  MOST DEATHS THAT OCCUR DURING
FLOODING ARE RELATED TO VEHICLES TRYING TO CROSS FLOODED ROADWAYS.

AN UPDATE TO THIS PRODUCT WILL BE ISSUED LATER TONIGHT.

&&

PAC081-290900-
/O.EXT.KCTP.FL.W.0056.000000T0000Z-110429T0900Z/
/WILP1.1.ER.110428T1957Z.110428T2245Z.110429T0300Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE WEST BRANCH SUSQUEHANNA AT WILLIAMSPORT.
* AT 9 PM THURSDAY THE STAGE WAS 20.1 FEET AND FALLING.
* FLOOD STAGE IS 20.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CONTINUE FALLING TO BELOW FLOOD STAGE OVERNIGHT.
* AT 20.0 FEET...HIGH WATER AFFECTS A FEW HOMES AND SOME ROADWAYS IN 
  AREAS NOT PROTECTED BY THE LEVEE SYSTEM. THE CAMPING AREA WEST OF 
  WILLIAMSPORT IS SIGNIFICANTLY AFFECTED.

$$

PAC081-291349-
/O.CON.KCTP.FL.W.0045.000000T0000Z-000000T0000Z/
/MCYP1.2.ER.000000T0000Z.110429T0200Z.000000T0000Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE WEST BRANCH SUSQUEHANNA AT MUNCY.
* FLOOD STAGE IS 20.0 FEET.
* MODERATE FLOODING IS FORECAST.
* AT 22.0 FEET...A NUMBER OF HOMES ARE FLOODED. ROUTE 405 IS AFFECTED
  BETWEEN MUNCY AND MONTGOMERY.

$$

PAC081-097-119-291349-
/O.CON.KCTP.FL.W.0046.000000T0000Z-000000T0000Z/
/MTGP1.1.ER.110428T1755Z.110429T0300Z.000000T0000Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE WEST BRANCH SUSQUEHANNA AT MONTGOMERY.
* AT 9 PM THURSDAY THE STAGE WAS 22.1 FEET AND STEADY.
* FLOOD STAGE IS 20.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 22.4 FEET OVERNIGHT THEN BEGIN FALLING.
* AT 22.0 FEET...SOUTH MAIN STREET AND ELLIS PARKWAY ARE FLOODED.

$$

PAC097-119-291349-
/O.EXT.KCTP.FL.W.0047.000000T0000Z-110430T0300Z/
/ILTP1.1.ER.110428T1943Z.110429T0600Z.110429T2100Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE WEST BRANCH SUSQUEHANNA AT MILTON.
* AT 9 PM THURSDAY THE STAGE WAS 20.5 FEET AND RISING.
* FLOOD STAGE IS 19.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 21.5 FEET AFTER MIDNIGHT TONIGHT. THE 
  RIVER WILL FALL BELOW FLOOD STAGE TOMORROW AFTERNOON.
* AT 22.0 FEET...HOMES ON SOUTH WATER STREET IN MILTON ARE FLOODED.

$$

PAC097-119-291349-
/O.EXT.KCTP.FL.W.0048.000000T0000Z-110430T0100Z/
/LWBP1.1.ER.110428T1853Z.110429T0600Z.110429T1900Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE WEST BRANCH SUSQUEHANNA AT LEWISBURG.
* AT 9 PM THURSDAY THE STAGE WAS 19.6 FEET AND FALLING.
* FLOOD STAGE IS 18.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 20.1 FEET AFTER MIDNIGHT TONIGHT. THE 
  RIVER WILL FALL BELOW FLOOD STAGE TOMORROW AFTERNOON.
* AT 21.0 FEET...THE LEFT...OR EAST BANK EXPERIENCES SUBSTANTIAL 
  OVERFLOW.

$$

PAC037-291348-
/O.EXT.KCTP.FL.W.0044.000000T0000Z-110430T2300Z/
/BMBP1.2.ER.110428T1403Z.110429T1800Z.110430T1700Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE SUSQUEHANNA RIVER AT BLOOMSBURG.
* AT 10 PM THURSDAY THE STAGE WAS 20.6 FEET AND RISING.
* FLOOD STAGE IS 19.0 FEET.
* MODERATE FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 23.3 FEET BY EARLY AFTERNOON TOMORROW. 
  THE RIVER WILL FALL BELOW FLOOD STAGE EARLY SATURDAY AFTERNOON.
* AT 24.0 FEET...MUCH OF THE FAIRGROUNDS...AS WELL AS ADJACENT 
  AREAS...ARE AFFECTED BY HIGH WATER. HIGH WATER ALSO BEGINS TO 
  AFFECT THE RUNWAY AT THE AIRPORT.

$$

PAC037-093-097-291348-
/O.EXT.KCTP.FL.W.0049.000000T0000Z-110430T2300Z/
/DANP1.2.ER.110428T1638Z.110430T0000Z.110430T1700Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE SUSQUEHANNA RIVER AT DANVILLE.
* AT 9 PM THURSDAY THE STAGE WAS 21.0 FEET AND RISING.
* FLOOD STAGE IS 20.0 FEET.
* MODERATE FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 23.0 FEET BY TOMORROW EVENING. THE RIVER 
  WILL FALL BELOW FLOOD STAGE EARLY SATURDAY AFTERNOON.
* AT 23.0 FEET...FLOODING OCCURS AT THE STATE HOSPITAL GROUNDS ON THE
  EAST SIDE OF TOWN. BACKWATER PRODUCES FLOODING ON SECHLER RUN IN 
  THE CENTER OF TOWN.

$$

PAC043-067-097-099-119-291348-
/O.EXT.KCTP.FL.W.0052.000000T0000Z-110430T1300Z/
/SBYP1.1.ER.110428T1952Z.110429T1800Z.110430T0700Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE SUSQUEHANNA RIVER NEAR SUNBURY.
* AT 9 PM THURSDAY THE STAGE WAS 24.8 FEET AND RISING.
* FLOOD STAGE IS 24.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 25.9 FEET BY EARLY AFTERNOON TOMORROW. 
  THE RIVER WILL FALL BELOW FLOOD STAGE SATURDAY MORNING.
* AT 26.0 FEET...HIGH WATER AFFECTS A NUMBER OF HOMES AND BUSINESSES 
  IN AREAS NOT PROTECTED BY THE FLOOD WALL AND LEVEE SYSTEM.

$$

PAC041-043-067-071-097-099-109-133-291348-
/O.EXT.KCTP.FL.W.0053.110429T0141Z-110430T2136Z/
/HARP1.1.ER.110429T0100Z.110429T2000Z.110430T1536Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE SUSQUEHANNA RIVER AT HARRISBURG.
* FROM THIS EVENING TO SATURDAY AFTERNOON...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT 10 PM THURSDAY THE STAGE WAS 17.1 FEET AND RISING.
* FLOOD STAGE IS 17.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 19.2 FEET BY TOMORROW AFTERNOON. THE 
  RIVER WILL FALL BELOW FLOOD STAGE LATE SATURDAY MORNING.
* AT 19.0 FEET...A NUMBER OF HOMES IN WEST FAIRVIEW...DAUPHIN...AND 
  HARRISBURG FLOOD.

$$

PAC071-133-291348-
/O.EXT.KCTP.FL.W.0054.000000T0000Z-110501T0900Z/
/MRTP1.1.ER.110428T2111Z.110430T0000Z.110501T0300Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE SUSQUEHANNA RIVER AT MARIETTA.
* AT 9 PM THURSDAY THE STAGE WAS 49.9 FEET AND RISING.
* FLOOD STAGE IS 49.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE RIVER WILL CREST NEAR 51.7 FEET BY TOMORROW EVENING. THE RIVER 
  WILL FALL BELOW FLOOD STAGE SATURDAY BEFORE MIDNIGHT.
* AT 52.0 FEET...A NUMBER OF RESIDENCES IN THE WRIGHTSVILLE AND 
  COLUMBIA AREAS BEGIN TO BE AFFECTED.

$$

PAC041-133-291348-
/O.EXT.KCTP.FL.W.0051.000000T0000Z-110429T2100Z/
/CPHP1.2.ER.110428T1158Z.110428T2115Z.110429T1500Z.UU/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE YELLOW BREECHES CREEK NEAR CAMP HILL.
* AT 10 PM THURSDAY THE STAGE WAS 9.1 FEET AND FALLING.
* FLOOD STAGE IS 7.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE CREEK WILL CONTINUE FALLING TO BELOW FLOOD STAGE BY LATE 
  MORNING TOMORROW.
* AT 9.0 FEET...A NUMBER OF HOMES IN THE GREEN LANE FARMS DEVELOPMENT
  ARE AFFECTED BY HIGH WATER.  CEDAR CLIFF DRIVE ON THE LEFT BANK 
  UPSTREAM FROM THE BRIDGE IS INUNDATED. CREEKWOOD DRIVE HAS SEVERAL 
  FEET OF WATER ON IT, AND WATER IS APPROACHING HOMES.

$$

PAC035-291300-
/O.EXT.KCTP.FL.W.0050.000000T0000Z-110429T1300Z/
/BECP1.3.ER.110428T1051Z.110428T1530Z.110429T0700Z.NR/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE BALD EAGLE CREEK NEAR BEECH CREEK STATION.
* AT 9 PM THURSDAY THE STAGE WAS 11.6 FEET AND FALLING.
* FLOOD STAGE IS 11.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE CREEK WILL CONTINUE FALLING TO BELOW FLOOD STAGE EARLY 
  TOMORROW MORNING.
* AT 11.0 FEET...HIGH WATER LEVELS THREATEN THE COTTAGE AREA OF MILL 
  HALL DOWNSTREAM OF BEECH CREEK STATION.

$$

PAC043-075-107-291348-
/O.EXT.KCTP.FL.W.0057.000000T0000Z-110429T1400Z/
/HTVP1.1.ER.110428T2256Z.110429T0500Z.110429T0800Z.NO/
949 PM EDT THU APR 28 2011

THE FLOOD WARNING CONTINUES FOR
  THE SWATARA CREEK AT HARPER TAVERN.
* AT 9 PM THURSDAY THE STAGE WAS 9.2 FEET AND STEADY.
* FLOOD STAGE IS 9.0 FEET.
* MINOR FLOODING IS FORECAST.
* THE CREEK WILL CREST NEAR 9.5 FEET AFTER MIDNIGHT TONIGHT. THE 
  CREEK WILL FALL BELOW FLOOD STAGE EARLY TOMORROW MORNING.
* AT 10.0 FEET...HIGH WATER ISOLATES SEVERAL HOUSES.

$$

EVANEGO

058 
WGUS81 KCTP 290749
FLSCTP
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE STATE COLLEGE, PA
349 AM EDT FRI APR 29 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
PENNSYLVANIA...

  SWATARA CREEK AT HARPER TAVERN

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...NEVER DRIVE CARS THROUGH FLOODED AREAS!!  THE WATER 
MAY BE TOO DEEP TO ALLOW SAFE PASSAGE.  MOST DEATHS THAT OCCUR DURING
FLOODING ARE RELATED TO VEHICLES TRYING TO CROSS FLOODED ROADWAYS.

&&

PAC043-075-107-290819-
/O.CAN.KCTP.FL.W.0057.000000T0000Z-110429T1400Z/
/HTVP1.1.ER.110428T2256Z.110429T0145Z.110429T0346Z.NO/
349 AM EDT FRI APR 29 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE SWATARA CREEK AT HARPER TAVERN.
* AT 3 AM FRIDAY THE STAGE WAS 7.7 FEET AND FALLING.
* THE RIVER FELL BELOW FLOOD STAGE AT 12 AM FRIDAY.
* FLOOD STAGE IS 9.0 FEET.
* THE RIVER WILL CONTINUE FALLING TO 3.8 FEET BY EARLY SUNDAY 
  MORNING.
* AT 9.0 FEET...SEVERAL DRIVEWAYS AND OTHER MINOR ROADWAYS ARE 
  AFFECTED.  WATER BEGINS TO ENTER SOME BASEMENTS.

$$

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this river flood warning went out at Apr 28, 4:03 PM EDT, 1 hour 52 minutes earlier.

Area forecast discussion, Apr 28, 4:03 PM EDT, 1 hour 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
403 PM EDT THU APR 28 2011

.SYNOPSIS...
A COLD FRONT WILL PUSH OFF THE MID ATLANTIC COAST BY TONIGHT. IN
ITS WAKE CLEARING SKIES AND LOWER HUMIDITY WILL OCCUR. A
DISTURBANCE IN THE UPPER ATMOSPHERE WILL MOVE SOUTHEAST FROM THE
WESTERN GREAT LAKES AND BRING CLOUDS AND SCATTERED SHOWERS TO THE
NORTHWEST HALF OF THE STATE LATER TONIGHT AND FRIDAY. AFTERWARD...
HIGH PRESSURE WILL BRING MAINLY CLEAR SKIES AND LIGHT WIND FOR
FRIDAY NIGHT THROUGH SATURDAY NIGHT. A COLD FRONT WILL PUSH
SOUTHEAST FROM THE GREAT LAKES BRINGING INCREASING CLOUDS AND A
CHANCE FOR SHOWERS SUNDAY INTO EARLY MONDAY.

&&

.NEAR TERM /UNTIL 6 AM FRIDAY MORNING/...
DEEP DRY AIR...AND COLD ADVECTION IN THE WAKE OF A STRONG COLD
FRONT WILL BRING GENERALLY SCT FLAT CU/STRATO CU LATE TODAY AND
MUCH OF TONIGHT ACROSS THE EASTERN 2/3RDS OF THE CWA. UPPER LOW
/CURRENTLY 540 DAM NEAR KORD/ WILL DRIFT ESE AND BRING BACK
THICKER...LAYERED CLOUDS FOR LATE TONIGHT ACRS THE WRN
MTNS /AND FRIDAY ELSEWHERE/...WITH 700 MB TEMPS SINKING TO -8 TO
-10C IN THE AFTERNOON.

SCATTERED SHOWERS WILL ENTER THE NW MTNS AFTER MIDNIGHT TONIGHT...
AND WET BULB ZERO HEIGHTS GET LOW ENOUGH ACROSS THE NW MTNS AND
LAURELS TO SUPPORT AT LEAST A MIX WITH LIGHT SNOW SHOWERS AT
TIMES THROUGH THE MID MORNING HOURS FRI.

THE AMT OF LATE NIGHT CLOUD COVER...AND THE CHC FOR -SHRA WILL
TAPER OFF TO THE SE OF THE MTNS.

WINDS WILL ALSO DIMINISH LATE TODAY AND EARLY TONIGHT PRIOR TO THE
ARRIVAL OF THE AFOREMENTIONED CLOUD COVER. VERT MIXING IN THE COLDER
AIR WILL DEEPEN LATE TONIGHT AND FRIDAY...HELPING TO INCREASE AND
VEER THE SFC WINDS AROUND TO THE WSW/WNW AT 10-20 KTS.

MINS TONIGHT WILL BE IN THE MID TO UPPER 30S ACROSS THE
MTNS...AND 40-45 DEGREES ELSEWHERE.

&&

.SHORT TERM /6 AM FRIDAY MORNING THROUGH 6 PM FRIDAY/...
ANY MORNING SUNSHINE ACROSS THE CENTRAL AND SE VALLEYS WILL SELF
DESTRUCT DURING THE AFTERNOON AS THE COLDER AIR ALOFT MOVES IN
FROM THE WEST.

ISOLATED TO SCTD SHOWERS WILL OCCUR MAINLY ACRS THE NW 1/2 OF THE CWA.

TEMPS WILL BE QUITE CHILLY ACROSS THE NRN AND WRN MTNS...ONLY IN
THE 45-50F RANGE...WHILE THE GREATER PERCENTAGE OF SUNSHINE ACROSS
THE SUSQ VALLEY WILL YIELD MAX TEMPS 2-4 DEG F BELOW NORMAL.

&&

.LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/...
AN AMPLIFIED BUT PROGRESSIVE FLOW PATTERN IS FORECAST TO DOMINATE
THE LONG TERM PERIOD ACROSS MUCH OF THE CONUS. THIS WILL BRING THE
OPPORTUNITY FOR AT LEAST A COUPLE OF DAYS OF DRY WEATHER...A BIG
CHANGE FROM RECENT WEEKS...AS WELL AS SEVERAL BOUTS OF SHOWERS AND
THUNDERSTORMS AS TROFS MOVES ACROSS PA.

A LARGE UPPER TROF WILL BE LIFTING INTO NEW ENG AT THE START OF THE
PERIOD ALLOWING CLEARING SKIES AND SIG COLDER TEMPS BY SATURDAY
MORNING. WILL HAVE TO MONITOR THE POTENTIAL FOR FROST/FREEZE ACROSS
SRN ZONES WHERE GROWING SEASON HAS BEGUN. UPPER RIDGING
ACCOMPANIED BY DRY WEATHER...WILL PERSIST THROUGH THE
WEEKEND...THEN BREAK DOWN EARLY NEXT WEEK AS AN UPPER TROF MOVES
THROUGH THE GREAT LAKES INTO THE NORTHEAST BY MIDDLE OF NEXT WEEK.

&&

.AVIATION /20Z THURSDAY THROUGH TUESDAY/...
VFR CONDITIONS WILL CONTINUE THROUGH MUCH OF TONIGHT...WITH AN OVC
DECK OF IFR TO MVFR CLOUDS SPREADING INTO THE WRN MTNS OF PENN
/TAF SITES KBFD AND KJST/ AFTER 05Z FRI.

IFR TO MVFR CIGS WILL OCCUR NW OF KAOO...TO KIPT FRIDAY...WHILE
MAINLY VFR SCT-BKN STRATO CU WILL FORM ACROSS THE REGION FURTHER
TO THE SE.

VFR RETURNS AREA-WIDE FOR LATER FRIDAY NIGHT THROUGH EARLY SUNDAY
MORNING WITH LIGHT WIND.

OUTLOOK...
SUN...VFR...THEN MVFR AND A CHANCE AFTERNOON SHOWERS.
MON...VFR TO MVFR WITH SCATTERED SHOWERS.
TUE...VFR.

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

SYNOPSIS...LAMBERT
NEAR TERM...LAMBERT
SHORT TERM...LAMBERT
LONG TERM...GARTNER/KREKELER
AVIATION...LAMBERT

Hazardous weather outlook, Apr 28, 1:42 PM EDT, 4 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
142 PM EDT THU APR 28 2011

PAZ012-018-019-025>028-034>037-041-042-045-046-049>053-056>059-
063>066-291745-
NORTHERN CLINTON-NORTHERN CENTRE-SOUTHERN CENTRE-BLAIR-HUNTINGDON-
MIFFLIN-JUNIATA-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
ADAMS-YORK-LANCASTER-
142 PM EDT THU APR 28 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WATER LEVELS OF NUMEROUS SMALL STREAMS AND CREEKS WILL STAY NEAR...
OR OVER BANK-FULL THROUGH TODAY THEN GRADUALLY RECEDE. THIS WATER
WILL BE CHANNELED INTO THE SUSQUEHANNA RIVER...WHICH WILL
EXPERIENCE MINOR TO MODERATE FLOODING AT VARIOUS POINTS THIS
AFTERNOON INTO EARLY THIS WEEKEND.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ004>006-010-011-017-024-033-291745-
WARREN-MCKEAN-POTTER-ELK-CAMERON-CLEARFIELD-CAMBRIA-SOMERSET-
142 PM EDT THU APR 28 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

LAMBERT

In the hours before

Local storm report, Apr 28, 12:11 PM EDT, 5 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1211 PM EDT THU APR 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 AM     TSTM WND DMG     2 ENE CATAWISSA         40.96N  76.43W
04/28/2011                   COLUMBIA           PA   EMERGENCY MNGR

            NUMEROUS TREES DOWN

&&

EVENT NUMBER CTP1100078

GAD

Local storm report, Apr 28, 12:12 PM EDT, 5 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1212 PM EDT THU APR 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0307 AM     TSTM WND DMG     LEWISTOWN               40.60N  77.57W
04/28/2011                   MIFFLIN            PA   911 CALL CENTER

            TREES DOWN ON ROUTE 22

&&

EVENT NUMBER CTP1100079

GAD

Local storm report, Apr 28, 2:32 PM EDT, 3 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
232 PM EDT THU APR 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0815 AM     FLASH FLOOD      3 NW CATAWISSA          40.98N  76.50W
04/28/2011                   COLUMBIA           PA   EMERGENCY MNGR

            ROAD CLOSURES... MUDSLIDES... AND SMALL STREAM
            FLOODING.

&&

EVENT NUMBER CTP1100080

GAD

Local storm report, Apr 28, 3:57 PM EDT, 1 hour 58 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
357 PM EDT THU APR 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     TSTM WND DMG     DUBOIS                  41.12N  78.76W
04/27/2011                   CLEARFIELD         PA   911 CALL CENTER

            TREES AND WIRES DOWN IN THE CITY

0450 PM     TSTM WND DMG     DUBOIS                  41.12N  78.76W
04/27/2011                   CLEARFIELD         PA   911 CALL CENTER

            SHED DAMAGED AND TREE DOWN ON QUARRY AVE. PUBLIC
            REPORTED A FUNNEL CLOUD

0615 PM     TSTM WND DMG     E AUSTIN                41.64N  78.09W
04/27/2011                   POTTER             PA   911 CALL CENTER

            SEVERAL TREES DOWN AND WATER OVER ROADS.

0715 PM     TSTM WND DMG     NEWPORT                 40.48N  77.13W
04/27/2011                   PERRY              PA   911 CALL CENTER

            TREES DOWN

0748 PM     TSTM WND DMG     1 WSW ELKLAND           41.99N  77.33W
04/27/2011                   TIOGA              PA   EMERGENCY MNGR

            NUMEROUS TREES DOWN. 70X35 FT BARN DESTROYED. CORN BIN
            LOST. HOUSE MOVED 1FT OFF OF FOUNDATION. 621 W. MAIN ST
            ELKLAND BORO.

1112 PM     HAIL             MORRISDALE              40.95N  78.23W
04/27/2011  E0.88 INCH       CLEARFIELD         PA   NWS EMPLOYEE

1226 AM     TSTM WND DMG     GARRETT                 39.86N  79.06W
04/28/2011                   SOMERSET           PA   911 CALL CENTER

            ONE TREE DOWN

1235 AM     HAIL             BERLIN                  39.92N  78.95W
04/28/2011  E1.00 INCH       SOMERSET           PA   PUBLIC

0115 AM     FLASH FLOOD      WESTFIELD               41.92N  77.54W
04/28/2011                   TIOGA              PA   EMERGENCY MNGR

            SMALL STREAMS OUT OF THEIR BANKS. SOME ROAD WASHOUTS
            REPORTED IN WESTFIELD TOWNSHIP.

0115 AM     FLASH FLOOD      HECTOR                  41.86N  77.62W
04/28/2011                   POTTER             PA   EMERGENCY MNGR

            SMALL STREAMS OUT OF THEIR BANKS. SOME ROAD WASHOUTS IN
            HECTOR TOWNSHIP.

0135 AM     HAIL             MARTINSBURG             40.31N  78.32W
04/28/2011  E1.25 INCH       BLAIR              PA   PUBLIC

0230 AM     TSTM WND DMG     BOALSBURG               40.77N  77.79W
04/28/2011                   CENTRE             PA   911 CALL CENTER

            TREES DOWN.

0240 AM     TSTM WND DMG     CENTRE HALL             40.84N  77.68W
04/28/2011                   CENTRE             PA   911 CALL CENTER

            TREES DOWN.

0245 AM     TSTM WND DMG     LUCY FURNACE            40.39N  77.89W
04/28/2011                   MIFFLIN            PA   911 CALL CENTER

            TREES DOWN.

0300 AM     TSTM WND DMG     EAST WATERFORD          40.37N  77.60W
04/28/2011                   JUNIATA            PA   PUBLIC

            SIGNIFICANT DAMAGE TO 4 BARNS ALG RT 850 OFF OF RT 75.
            SILO TOP BLOWN OFF. PORTION OF 3-STALL BARN DESTROYED.
            LARGE MACHINE SHED DESTROYED. LOTS OF DEBRIS. NUMEROUS
            TREES DOWN. NO POWER.

0307 AM     TSTM WND DMG     LEWISTOWN               40.60N  77.57W
04/28/2011                   MIFFLIN            PA   911 CALL CENTER

            TREES DOWN ON ROUTE 22

0320 AM     TSTM WND DMG     MCALISTERVILLE          40.63N  77.28W
04/28/2011                   JUNIATA            PA   PUBLIC

            TREES DOWN

0400 AM     HAIL             DAUPHIN                 40.37N  76.93W
04/28/2011  E1.00 INCH       DAUPHIN            PA   PUBLIC

0400 AM     FLASH FLOOD      ARENDTSVILLE            39.92N  77.30W
04/28/2011                   ADAMS              PA   911 CALL CENTER

            RTE 234 CLOSED DUE TO HIGH WATER

0407 AM     TSTM WND DMG     REBUCK                  40.72N  76.75W
04/28/2011                   NORTHUMBERLAND     PA   911 CALL CENTER

            TREE ON HOUSE

0414 AM     TSTM WND DMG     LECK KILL               40.72N  76.60W
04/28/2011                   NORTHUMBERLAND     PA   911 CALL CENTER

            TREES DOWN

0415 AM     TSTM WND DMG     BIGLERVILLE             39.93N  77.25W
04/28/2011                   ADAMS              PA   911 CALL CENTER

            TREES DOWN

0430 AM     TSTM WND DMG     VALLEY VIEW             40.66N  76.53W
04/28/2011                   SCHUYLKILL         PA   911 CALL CENTER

            MULTIPLE TREES DOWN

0435 AM     TSTM WND DMG     2 ENE CATAWISSA         40.96N  76.43W
04/28/2011                   COLUMBIA           PA   EMERGENCY MNGR

            NUMEROUS TREES DOWN

0455 AM     TSTM WND GST     MYERSTOWN               40.37N  76.31W
04/28/2011  M62 MPH          LEBANON            PA   TRAINED SPOTTER

            TREE DOWN ON HOUSE AS WELL

0530 AM     TSTM WND DMG     BIGLERVILLE             39.93N  77.25W
04/28/2011                   ADAMS              PA   EMERGENCY MNGR

            LARGE APPLE BINS DAMAGED BLOWN UPHILL...UTILITY POLE
            AND TREES UPROOTED...WIRES DOWN.

0530 AM     FLASH FLOOD      BIGLERVILLE             39.93N  77.25W
04/28/2011                   ADAMS              PA   EMERGENCY MNGR

            SMALL STREAM FLOODING...WATER RESCUES...BASEMENTS
            FLOODED...WATER FLOWING OVER BLOCKING ROADS

0542 AM     TSTM WND DMG     LAKE MEADE              39.97N  77.02W
04/28/2011                   ADAMS              PA   911 CALL CENTER

            WIDESPREAD TREES DOWN

0547 AM     TSTM WND DMG     2 NNW WELLSVILLE        40.08N  76.96W
04/28/2011                   YORK               PA   EMERGENCY MNGR

            NUMEROUS TREES DOWN. MAN REPORTED FRONT END OF CAR
            LIFTED OFF GROUND.

0556 AM     FLASH FLOOD      NEW CUMBERLAND          40.23N  76.88W
04/28/2011                   CUMBERLAND         PA   EMERGENCY MNGR

            ROAD CLOSURES DAMAGE...WATER RESCUES

0630 AM     FLASH FLOOD      SHIREMANSTOWN           40.22N  76.96W
04/28/2011                   CUMBERLAND         PA   TRAINED SPOTTER

            WIDESPREAD FLOODING IN LWR ALLEN TWP. CEDAR RUN OUT OF
            ITS BANKS FLOODING OLD GETTYSBURG RD. CARS FLOODED. 2
            HOMES AN A BUSINESS FLOODED.

0635 AM     TSTM WND DMG     2 SW HARPER TAVERN      40.39N  76.59W
04/28/2011                   LEBANON            PA   EMERGENCY MNGR

            TREES ACROSS REEDS CREEK ROAD. POSSIBLE STRUCTURAL
            COLLAPSE.

0700 AM     FLASH FLOOD      5 N LINGLESTOWN         40.42N  76.79W
04/28/2011                   DAUPHIN            PA   TRAINED SPOTTER

            SEVERAL INCHES OF WATER OVER RTE 443

0750 AM     FLASH FLOOD      WAYNESBORO              39.75N  77.58W
04/28/2011                   FRANKLIN           PA   TRAINED SPOTTER

            EAST BRANCH ANTIETAM CREEK OUT OF ITS BANKS AT RENFREW
            PARK. FIELD WATER CROSSED STATE LINE ROAD.

0815 AM     FLASH FLOOD      3 NW CATAWISSA          40.98N  76.50W
04/28/2011                   COLUMBIA           PA   EMERGENCY MNGR

            ROAD CLOSURES... MUDSLIDES... AND SMALL STREAM
            FLOODING.

&&

EVENT NUMBER CTP1100045 CTP1100046 CTP1100048 CTP1100047 CTP1100049
CTP1100050 CTP1100051 CTP1100058 CTP1100053 CTP1100054 CTP1100061
CTP1100056 CTP1100055 CTP1100057 CTP1100066 CTP1100079 CTP1100059
CTP1100062 CTP1100068 CTP1100064 CTP1100063 CTP1100060 CTP1100067
CTP1100078 CTP1100065 CTP1100075 CTP1100076 CTP1100069 CTP1100072
CTP1100077 CTP1100081 CTP1100073 CTP1100070 CTP1100071 CTP1100080

STEINBUGL

Local storm report, Apr 28, 4:13 PM EDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
413 PM EDT THU APR 28 2011

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 AM     TORNADO          1 NW FORTNEY            40.11N  76.93W
04/28/2011                   YORK               PA   NWS STORM SURVEY

            EF1 TORNADO CONFIRMED AT ROUNDTOP MTN RESORT

&&

EVENT NUMBER CTP1100082

STEINBUGL

The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 8:09 PM EDT	Tornado Warning	CTP	Lycoming, Sullivan	26 min
Apr 27, 8:22 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	53 min
Apr 27, 8:46 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan, Tioga	44 min
Apr 27, 9:14 PM EDT	Special Weather Statement	CTP	York	31 min
Apr 27, 9:32 PM EDT	Special Weather Statement	CTP	Sullivan	28 min
Apr 27, 10:38 PM EDT	Special Weather Statement	CTP	Cambria	37 min
Apr 27, 10:52 PM EDT	Special Weather Statement	CTP	Clearfield	23 min
Apr 27, 11:09 PM EDT	Special Weather Statement	CTP	Clinton	36 min
Apr 27, 11:19 PM EDT	Special Weather Statement	CTP	Cambria, Centre, Clearfield	41 min
Apr 27, 11:25 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton	37 min
Apr 27, 11:59 PM EDT	Special Weather Statement	CTP	Clinton, Lycoming	46 min
Apr 28, 12:14 AM EDT	Special Weather Statement	CTP	Cambria	31 min
Apr 28, 12:19 AM EDT	Special Weather Statement	CTP	Centre, Clinton	41 min
Apr 28, 12:26 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	64 min
Apr 28, 12:33 AM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	57 min
Apr 28, 12:44 AM EDT	Special Weather Statement	CTP	Centre	31 min
Apr 28, 1:02 AM EDT	Special Weather Statement	CTP	Lycoming	43 min
Apr 28, 1:21 AM EDT	Severe Thunderstorm Warning	CTP	Bedford, Blair, Huntingdon, Mifflin	39 min
Apr 28, 1:29 AM EDT	Special Weather Statement	CTP	Clinton	31 min
Apr 28, 1:35 AM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	25 min
Apr 28, 1:42 AM EDT	Flash Flood Warning	CTP	Cameron, Clinton, Lycoming, Potter, Sullivan, Tioga	4 hr
Apr 28, 1:42 AM EDT	Special Weather Statement	CTP	Fulton	33 min
Apr 28, 1:44 AM EDT	Flash Flood Warning	CTP	Bedford, Blair, Cambria, Fulton, Huntingdon, Somerset	4 hr
Apr 28, 1:58 AM EDT	Special Weather Statement	CTP	Clinton	47 min
Apr 28, 2:03 AM EDT	Special Weather Statement	CTP	Mifflin	42 min
Apr 28, 2:19 AM EDT	Special Weather Statement	CTP	Huntingdon	41 min
Apr 28, 2:26 AM EDT	Special Weather Statement	CTP	Franklin	34 min
Apr 28, 2:30 AM EDT	Special Weather Statement	CTP	Clinton	30 min
Apr 28, 2:42 AM EDT	Special Weather Statement	CTP	Clinton	33 min
Apr 28, 2:52 AM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Cumberland, Franklin, Juniata, Mifflin and 3 more	53 min
Apr 28, 2:55 AM EDT	Areal Flood Advisory	CTP	Centre, Franklin, Juniata, Mifflin, Perry, Snyder and 1 more	3 hr
Apr 28, 3:02 AM EDT	Flash Flood Warning	CTP	Centre	3 hr
Apr 28, 3:03 AM EDT	Special Weather Statement	CTP	Lycoming, Tioga	42 min
Apr 28, 3:11 AM EDT	Special Weather Statement	CTP	Adams, Franklin	34 min
Apr 28, 3:34 AM EDT	Flash Flood Warning	CTP	Franklin	3 hr
Apr 28, 3:37 AM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Dauphin, Juniata, Lycoming, Montour and 4 more	38 min
Apr 28, 3:39 AM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, Dauphin, Montour, Northumberland, York	3 hr
Apr 28, 3:41 AM EDT	Special Weather Statement	CTP	Lycoming	34 min
Apr 28, 3:46 AM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Dauphin, Lancaster, Lebanon, Perry and 1 more	44 min
Apr 28, 4:00 AM EDT	Severe Thunderstorm Warning	CTP	Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 1 more	60 min
Apr 28, 4:12 AM EDT	River Flood Warning	CTP	Lycoming	41 hr
Apr 28, 4:12 AM EDT	River Flood Warning	CTP	Lycoming, Northumberland, Union	35 hr
Apr 28, 4:12 AM EDT	River Flood Warning	CTP	Northumberland, Union	41 hr
Apr 28, 4:12 AM EDT	River Flood Warning	CTP	Northumberland, Union	41 hr
Apr 28, 4:12 AM EDT	River Flood Warning	CTP	Columbia, Montour, Northumberland	65 hr
Apr 28, 4:25 AM EDT	Flash Flood Warning	CTP	Adams, Cumberland, Dauphin, Perry, York	7 hr
Apr 28, 4:28 AM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Dauphin, Lancaster, Lebanon, Schuylkill and 1 more	47 min
Apr 28, 5:14 AM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, York	46 min
Apr 28, 5:35 AM EDT	Tornado Warning	CTP	Adams, Cumberland, York	25 min
Apr 28, 5:49 AM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Schuylkill	56 min
Apr 28, 6:13 AM EDT	Flash Flood Warning	CTP	Lebanon, Schuylkill	4 hr
Apr 28, 6:32 AM EDT	Wind Advisory	CTP	Cambria, Cameron, Clearfield, Elk, McKean, Potter and 2 more	5 hr
Apr 28, 6:47 AM EDT	Areal Flood Advisory	CTP	Columbia, Franklin, Fulton, Huntingdon, Juniata, Lycoming and 7 more	3 hr
Apr 28, 6:53 AM EDT	Severe Thunderstorm Warning	CTP	Lebanon, Schuylkill	37 min
Apr 28, 7:11 AM EDT	Special Weather Statement	CTP	Columbia, Montour, Northumberland, Sullivan	49 min
Apr 28, 7:41 AM EDT	River Flood Warning	CTP	Clinton	20 hr
Apr 28, 7:50 AM EDT	Special Weather Statement	CTP	Dauphin	25 min
Apr 28, 7:54 AM EDT	Special Weather Statement	CTP	Lebanon, York	36 min
Apr 28, 7:59 AM EDT	Special Weather Statement	CTP	York	46 min
Apr 28, 8:04 AM EDT	Special Weather Statement	CTP	Adams	26 min
Apr 28, 8:07 AM EDT	River Flood Warning	CTP	Cumberland, York	24 hr
Apr 28, 8:17 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	58 min
Apr 28, 8:21 AM EDT	Tornado Warning	CTP	York	24 min
Apr 28, 8:44 AM EDT	Tornado Warning	CTP	Lancaster, York	14 min
Apr 28, 8:54 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	66 min
Apr 28, 9:30 AM EDT	Tornado Warning	CTP	Lancaster, York	15 min
Apr 28, 9:58 AM EDT	Tornado Warning	CTP	York	21 min
Apr 28, 10:03 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	27 min
Apr 28, 10:13 AM EDT	Tornado Warning	CTP	Lancaster, York	32 min
Apr 28, 10:26 AM EDT	River Flood Warning	CTP	Dauphin, Juniata, Northumberland, Perry, Union	45 hr
Apr 28, 10:26 AM EDT	River Flood Warning	CTP	Cumberland, Dauphin, Juniata, Lancaster, Northumberland, Perry and 2 more	48 hr
Apr 28, 10:26 AM EDT	River Flood Warning	CTP	Lancaster, York	63 hr
Apr 28, 10:26 AM EDT	River Flood Warning	CTP	Huntingdon	11 hr
Apr 28, 10:35 AM EDT	Severe Thunderstorm Warning	CTP	Lancaster	10 min
Apr 28, 10:49 AM EDT	Special Weather Statement	CTP	Lancaster	26 min
Apr 28, 11:15 AM EDT	Special Weather Statement	CTP	Lancaster	15 min
Apr 28, 12:52 PM EDT	River Flood Warning	CTP	Lycoming	15 hr

Nearby

River Flood Warnings in Pennsylvania, 2011 Every river flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.