Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 198, NWS State College, PA

August 2, 2000McKean County, Warren County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Aug 2, 2000, 3:02 PM EDT for McKean County, Warren County, Pennsylvania. It was in force for 58 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
Aug 2, 2000, 3:02 PM EDT (19:02 UTC)
Expired
Aug 2, 2000, 4:00 PM EDT
In force
58 min
Issued by
NWS State College, PA
Area
Whole counties

Counties McKean County, PA, Warren County, PA

The radar

The State College radar (KCCX), 125 km from the middle of the area, began a volume at 19:02 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.

What was reported inside it

TimeReportWhereRemark
Aug 2, 3:15 PM EDTThunderstorm WindWarren, PATrees and power lines down on Route 337 in Pleasant Township.
Aug 2, 3:40 PM EDTThunderstorm WindSmethport, PATrees were down on Route 646 in Keating Township.

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
Aug 2, 1:00 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 7.0 hours before the alert went out and 184 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, Pittsburgh, PA at 12:00Z on 2000-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 450 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, Pittsburgh, PA at 12:00Z on 2000-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.19395878Sfc1 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
450 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
685 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

091 
WUUS51 KCTP 021904
SVRCTP
PAC083-123-022000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
302 PM EDT WED AUG 2 2000

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCKEAN COUNTY.
  WARREN COUNTY.

* UNTIL 400 PM EDT.

* AT 302 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A LINE OF SEVERE THUNDERSTORMS FROM 5 MILES WEST OF THE 
  ALLEGHENY RESERVOIR...EXTENDING SOUTHWEST TO NEAR ENTERPRISE. 
  MOVEMENT WAS TO THE NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  TIDIOUTE AT 315 PM
  BRADFORD AT 320 PM.

THESE ARE DANGEROUS STORMS. STAY INDOORS AWAY FROM WINDOWS. SEVERE 
THUNDERSTORMS CONTAIN DAMAGING WINDS 58 MPH OR STRONGER OR HAIL THREE
QUARTERS OF AN INCH OR LARGER.

$$

LAMBERT/ONDREJIK

LAT...LON 4188 7944 4168 7933 4212 7822 4232 7836

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 Aug 2, 1:00 PM EDT, 2 hours 2 minutes earlier.

Area forecast discussion, Aug 2, 1:00 PM EDT, 2 hours 2 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
100 PM EDT WED AUG 02 2000

SHORT UPD COMING NOW RDR BACK IN SRVCE AS OF 1630Z...AND JUST IN
TIME...TOO BOX FOR NRN TIER IN EFFECT BY PRESS TIME. SFC FRONT
ROUGHLY FM APN-MKE-RFD NOW. TEXTBOOK OF AN MCV TRANSITIONING TO SVR
WX MAKER (MIKE FRITSCH TOLD ME THESE THINGS HAPPEN).  JUICE REAMINS
IN PLACE W/ MID 60S TO NR 70 DWPTS ACRS FA.

FNT ADVERTISED EARLIER WL MAKE AN APPEARANCE TOMORROW. MORE TEXTBOOK
STUFF COMING ALONG...AS NEAT JET STREAK INTERACTION LIKELY DURING
MIDDLE OF DAY TOM...SO TALL CLDS TO GET JUST THAT MUCH MORE LIFT
ALONG ALRDY POTENT FNTL BOUNDARY. BUT...THINGS SHUD BEGIN TO CALM
DOWN NICELY AFT SSET ON THURS...W/PASSAGE BRINGING DRIER HI PRES.
FRI MAY END UP BEING A REALLY NICE DAY...AND WL THEREFORE CUT POPS
BACK TO ONLY FAR NRN TIER WHERE COLDEST AIR WL LIE.

XTNDD: MRF MUCHO CONSISTENT. ECMWF DIFFERS SLIGHTLY WITH STRENGTH OF
NEXT SYSTEM...BUT OVERALL GOOD AGREEMENT. NICE SAT...NOT TERRIBLE
SUNDAY EITHER  MON BRINGS ANOTHER FRONT - TWO IN THE SAME FORECAST
- IS THAT POSSIBLE??  TEMPS...WL ROLL W/GUID.

.CTP...SVR WATCH 638 THRU 22Z FOR NWRN CWA.

DANGELO

In the hours before

Special weather statement, Aug 2, 12:25 PM EDT, 2 hours 37 minutes before
PAZ004>006-010>012-017-018-037-041-042-022222-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1225 PM EDT WED AUG 2 2000

...SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS THE NORTHERN MOUNTAINS
OF PENNSYLVANIA THIS AFTERNOON AND EVENING...

WARM AND VERY HUMID AIR IN PLACE ACROSS THE REGION WILL HELP TO
INTENSIFY AN AREA OF THUNDERSTORMS...WHICH WERE MOVING ACROSS
CENTRAL LAKE ERIE AND NORTHEASTERN OHIO EARLY THIS AFTERNOON.

THE THUNDERSTORMS MAY REACH SEVERE LIMITS AS THEY MOVE INTO THE
NORTHWEST MOUNTAINS NEAR WARREN AND BRADFORD BETWEEN 2 AND 3 PM THIS
AFTERNOON. STRONG WIND GUSTS AROUND 60 MPH ALONG WITH HAIL AND
FREQUENT CLOUD TO GROUND LIGHTNING WILL BE THE MAIN THREAT.

THE THREAT FOR THE SEVERE WEATHER FURTHER EAST WILL OCCUR LATE THIS
AFTERNOON AND THIS EVENING.

THE POTENTIAL ALSO EXISTS FOR LOCALLY HEAVY DOWNPOURS FROM REPEAT
THUNDERSTORMS. THE RAIN MAY BE HEAVY ENOUGH OVER A SHORT PERIOD OF
TIME TO CAUSE FLOODING. PLACES THAT RECEIVED HEAVY RAINS DURING THE
LAST FEW DAYS WILL BE MOST SUSCEPTIBLE TO FLOODING.

LAMBERT/DANGELO
Special weather statement, Aug 2, 1:00 PM EDT, 2 hours 2 minutes before
PAZ004>006-009-010-022200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
100 PM EDT WED AUG 2 2000

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM EDT FOR THE
NORTHWEST AND NORTH CENTRAL MOUNTAINS OF PENNSYLVANIA...

COUNTIES INCLUDED IN THE SEVERE THUNDERSTORM WATCH ARE:

CAMERON...ELK...MCKEAN...POTTER AND WARREN.

SEVERE THUNDERSTORMS MOVING INTO EXTREME NORTHWEST PENNSYLVANIA WILL
LIKELY MAINTAIN THEIR INTENSITY AS THEY ENTER THE NORTHWEST
MOUNTAINS OF PENNSYLVANIA BETWEEN 2 AND 3 PM.

THE POTENTIAL ALSO EXISTS FOR LOCALLY HEAVY DOWNPOURS FROM REPEAT
THUNDERSTORMS. THE RAIN MAY BE HEAVY ENOUGH OVER A SHORT PERIOD OF
TIME TO CAUSE FLOODING. PLACES THAT RECEIVED HEAVY RAINS DURING THE
LAST FEW DAYS WILL BE MOST SUSCEPTIBLE TO FLOODING.

A SEVERE THUNDERSTORM WATCH MEANS THAT SEVERE THUNDERSTORMS
CONTAINING WINDS GUSTS OVER 58 MPH...OR HAIL OF THREE QUARTERS OF AN
INCH IN DIAMETER OR LARGER...ARE POSSIBLE.

LAMBERT/DANGELO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 1:51 PM EDTSevere Thunderstorm WarningCTPWarren69 min
Aug 2, 4:01 PM EDTSevere Thunderstorm WarningCTPPotter74 min
Aug 2, 4:07 PM EDTSevere Thunderstorm WarningCTPMcKean38 min
Aug 2, 4:38 PM EDTSevere Thunderstorm WarningCTPColumbia67 min
Aug 2, 4:51 PM EDTSevere Thunderstorm WarningCTPClearfield54 min
Aug 2, 5:14 PM EDTFlash Flood WarningCTPColumbia3 hr
Aug 2, 5:37 PM EDTFlash Flood WarningCTPClearfield3 hr
Aug 2, 6:20 PM EDTSevere Thunderstorm WarningCTPClinton25 min
Aug 2, 6:41 PM EDTFlash Flood WarningCTPClinton3 hr
Aug 2, 6:44 PM EDTSevere Thunderstorm WarningCTPCentre61 min
Aug 2, 7:02 PM EDTSevere Thunderstorm WarningCTPLycoming58 min

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; radar from the NEXRAD Level II archive.