Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 113, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 20, 1998, 5:02 PM EDT for Snyder County, Pennsylvania. It was in force for 48 min. 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 20, 1998, 5:02 PM EDT (21:02 UTC)
- Expired
- Jun 20, 1998, 5:50 PM EDT
- In force
- 48 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Snyder County, PA
The radar
The State College radar (KCCX), 80 km from the middle of the area, began a volume at 21:02 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.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.0 hours before the alert went out and 204 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
- 1254 m above ground
- 0-6 km bulk shear
- 25 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 TTAA00 KCTP 202102 RRA SVRCTP PAC109-202150- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 502 PM EDT SAT JUN 20 1998 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SNYDER COUNTY IN CENTRAL PENNSYLVANIA * UNTIL 550 PM EDT * AT 500 PM EDT...STATE COLLEGE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES WEST OF SELINSGROVE OR IN THE VICINITY OF BEAVER SPRINGS...MOVING SOUTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SELINSGROVE AT 510 PM EDT SHAMOKIN DAM AT 510 PM EDT PORT TREVORTON AT 520 PM EDT DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDINGB AND STAY AWAY FROM WINDOWS! MSE
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 20, 2:20 PM EDT, 2 hours 42 minutes earlier.
Area forecast discussion, Jun 20, 2:20 PM EDT, 2 hours 42 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 220 PM EDT SAT JUN 20 1998 ...DISCUSSION... WK S/WV RESPONSIBLE FOR SCT TSRA THIS AFTN...WILL PASS SOUTH AND EAST OF THE REGION THIS EVENING. WUD KEEP CHC POPS FOR SUSQ VALL EARLY THIS EVENING. RIDGE THEN BUILDS INTO THE AREA OVERNIGHT WITH SIGNIFICANT DRYING/SUBSIDENCE AT ALL LEVELS. SKIES SHOULD BECOME MOSTLY CLEAR ACROSS ENTIRE FA. MOS FORECASTING AM FOG...HOWEVER DO NOT FEEL IT WILL BE DENSE ENOUGH TO MENTION IN ZONES. SUNDAY...RIDGE AXIS PROGGED TO REMAIN JUST W OF FA...THUS EXPECT PLENTY OF SUNSHINE. SUBSIDENCE AND WARMING TEMPS ALOFT WILL LIMIT CU FORMATION. IN ADDTION...8H TEMPS PROGGED IN THE 17-18C RANGE WILL TRANSLATE TO AFTN SFC TEMPS IN EXCESS OF 90 DEGREES IN THE LOWER ELEVATIONS. SUN NITE...NEXT S/WV ROTATES AROUND THE BASE OF MAIN TROUGH IN THE UPPER MID WEST...THEN INTO PA DURING SUN NITE. THIS FEATURE IS PROGGED TO BE WEAK AND PRODUCES LITTLE COOLING ALOFT DESPITE AN INCREASE IN LL MOISTURE. AT THIS POINT...WUD PLACE CHC POPS NW ZONES AND LEAVE REMAINDER OUT FOR NOW. MONDAY...L/WV TROUGH PASSES TO OUR N THROUGH SE CANADA. MOST SIGNIFICANT UPPER LVL DIFFLUENCE AND COOLING WILL OCCUR WELL TO OUR N...HOWEVER WUD ADD CHC POPS ALL ZONES FOR A TSRA. UNDER PTSUNNY SKIES...TEMPS WILL LIKELY BE SLIGHTLY COOLER THAN ON SUNDAY. FITZGERALD
In the hours before
Local storm report, Jun 20, 4:19 PM EDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PENNSYLVANIA
419 PM EDT SAT JUN 20 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0400 PM LOCK HAVEN PA WIND DAMAGE
06/20/98 CLINTON TREES AND POWER LINES DOWNSpecial weather statement, Jun 20, 4:25 PM EDT, 37 minutes before
PAZ012-045-202050- SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 425 PM EDT SAT JUN 20 1998 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CLINTON COUNTY UNTIL 435 PM... AT 425 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER SOUTHERN CLINTON COUNTY JUST TO THE SOUTH OF LOCK HAVEN NEAR I-80. TREES AND POWERLINES WERE DOWNED IN LOCK HAVEN AROUND 4 PM AS THE STORM MOVED THROUGH THAT AREA. THE STORM WILL MOVE SOUTHEAST THROUGH LOGANTON AND CARROLL THROUGH 435 PM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. DO NOT DRIVE INTO LOW WATER CROSSINGS. MSE
Special weather statement, Jun 20, 4:25 PM EDT, 37 minutes before
PAZ012-045-202050- SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 425 PM EDT SAT JUN 20 1998 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CLINTON COUNTY UNTIL 435 PM... AT 425 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER SOUTHERN CLINTON COUNTY JUST TO THE SOUTH OF LOCK HAVEN NEAR I-80. TREES AND POWERLINES WERE DOWNED IN LOCK HAVEN AROUND 4 PM AS THE STORM MOVED THROUGH THAT AREA. THE STORM WILL MOVE SOUTHEAST THROUGH LOGANTON AND CARROLL THROUGH 435 PM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. DO NOT DRIVE INTO LOW WATER CROSSINGS. MSE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 12:34 AM EDT | Flash Flood Warning | CTP | Cambria | 4 hr |
| Jun 20, 3:49 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 46 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1998Every severe thunderstorm warning in 1998
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.