Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 176, NWS State College, PA

June 25, 2000Lancaster County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 25, 2000, 7:45 PM EDT for Lancaster County, Pennsylvania. It was in force for 60 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 25, 2000, 7:45 PM EDT (23:45 UTC)
Expired
Jun 25, 2000, 8:45 PM EDT
In force
60 min
Issued by
NWS State College, PA
Area
Whole counties

County Lancaster County, PA

What was reported inside it

TimeReportWhereRemark
Jun 25, 8:00 PM EDTHail 0.75Lititz, PA
Jun 25, 8:15 PM EDTThunderstorm WindLititz, PATrees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 25, 3:00 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.8 hours before the alert went out and 246 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.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2000-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 237 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2000-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
237 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
-20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KCTP 252346
SVRCTP
PAC071-260045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
745 PM EDT SUN JUN 25 2000

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LANCASTER COUNTY.

* UNTIL 845 PM EDT.

* AT 745 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHWEST OF LITITZ...MOVING SOUTHEAST
  AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ROTHSVILLE AT 755 PM.
  AKRON AT 800 PM.
  LANCASTER AT 820 PM.
  WILLOW STREET AT 835 PM.

THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS.

$$

ONDREJIK

LAT...LON 4030 7629 4021 7650 3983 7623 3994 7601

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 25, 12:50 PM EDT, 6 hours 55 minutes earlier.

Area forecast discussion, Jun 25, 12:50 PM EDT, 6 hours 55 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1250 PM EDT SUN JUN 25 2000

THINGS STARTING TO GO ALONG ALLEGHENY FRONT ATTM...AND SPC HAS
ALREADY STARTED WATCHING CLOSER AS SWOMCD CAME OUT NOT SO LONG AGO.
XPCT WW SOON. WL TRY TO GET THINGS SQUARED AWAY B4 THAT HAPPENS AND
JUST LET NEW ZONE PKG FLY IF ONE IS TO BE ISSUED.

LLJ WINDS NOW REFLECTED IN SFC WINDS AT MANY OB SITES AS FRONT
ADVANCES SE. 16Z OBS WUD PLACE FNTL BNDRY OV ERI CO AND CLOSE TO
WARREN CO. WL TRY TO PLAY SOME CLEARING AND THEN PATCHY FOG FOR THE
NW AFTER A /THIS EVENING/ PD - MAINLY FOR SHRA/TSRA. FAR SE WL BE
CLDY TONIGHT...BUT CURRENT CLR SKIES MAY WARRANT AN EVE PD AS WELL
TO MAKE THINGS A BIT SMOOTHER. WL LEAVE SOME CHC POPS IN FOR MON IN
SRN ZNS AS FRONT LAYS OUT W-E AND DISSIPATES...BUT WL STILL HV
POTENTIAL FOR SHRA WITH IT - ESP IN AFTN AS COASTAL SYSTEM WL SLOW
THINGS UP. WL GO HI CHC FOR ERN/SRN ZNS FOR MON AND LEAVE OUT
TIMING. NRN/WRN ZNS MAY STAY DRY ON MON BUT WL THINK ABT LEAVING A
30 POP UP THERE.

MON NIGHT HAS NEW FRONT APPCH AS POTENT NRN ROCKIES SYSTEM WILL
CHARGE THRU UPR MIDWEST AND INTO OH VLY BY NIGHTFALL. WL HV LIKELIES
UP FOR NW AND TAPER TO LOW CHC FOR SE. TUE IS JUST THE OPPOSITE AS
TIMING LOOKING LIKE THINGS MAY GET THRU NW IN THE MORNING...AND FIRE
UP MORE FOR LWR SUSQ.  MOS MAY BE A BIT TOO WARM FOR THE SE ON MON
AND WL TRIM A CAT OR SO OFF MAXES. W/LTL CHG IN DWPTS TONIGHT AND
DECENT CLD CVR WL GO WARMER THAN MOS ON MINS.

XTNDD: WED LOOKING MORE DRY THAN EARLIER THOUGHT. WL JUST GO PC/MC AND
LEAVE CHC TSRA/SHRA IN FOR THUR AND FRI. COOLER THAN NORMAL TEMPS
LOOKING LIKE A GOOD BET AS MRF DEEPER W/UPR TROF AND COOLER W/8H
TEMPS ON THR AND FRI. WITH FRONT JUST TO THE SOUTH AND LITTLE WAVES
RIDING ALONG IT...WL HV POTENTIAL FOR SHRA/TSRA THUR AND FRI SEES A
STRONGER S/W ROLLING IN FM MIDWEST.

.CTP...NONE.

DANGELO

In the hours before

Special weather statement, Jun 25, 3:15 PM EDT, 4 hours 30 minutes before
PAZ026>028-035-036-041-042-046-049>053-056>059-063>066-260000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
315 PM EDT SUN JUN 25 2000

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM EDT...

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MOST OF THE
SUSQUEHANNA VALLEY UNTIL 8 PM THIS EVENING.

THE WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES...ADAMS...
COLUMBIA... CUMBERLAND... DAUPHIN... FRANKLIN... FULTON...
HUNTINGDON... JUNIATA... LANCASTER... LEBANON... LYCOMING...
MIFFLIN... MONTOUR... NORTHUMBERLAND... PERRY... SCHUYLKILL...
SNYDER... SULLIVAN... UNION... AND YORK.

SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA.
THUNDERSTORMS COULD PRODUCE HAIL IN EXCESS OF THREE-QUARTERS OF AN
INCH AND WIND GUSTS IN EXCESS OF 58 MPH. ADDITIONALLY HEAVY RAIN IS
POSSIBLE WITH THESE THUNDERSTORMS.

IF THUNDERSTORMS APPROACH YOUR LOCATION...MOVE TO SHELTER
IMMEDIATELY.

ONDREJIK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 25, 5:00 PM EDTSevere Thunderstorm WarningCTPFranklin30 min
Jun 25, 5:03 PM EDTSevere Thunderstorm WarningCTPCumberland57 min
Jun 25, 6:53 PM EDTSevere Thunderstorm WarningCTPFranklin, Fulton67 min
Jun 25, 6:59 PM EDTSevere Thunderstorm WarningCTPLancaster, Lebanon46 min
Jun 25, 7:23 PM EDTFlash Flood WarningCTPLancaster, Lebanon3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2000Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.