Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 2, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Mar 9, 2002, 10:33 PM EST for 5 counties in Pennsylvania. It was in force for 42 min. 5 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
- Mar 9, 2002, 10:33 PM EST (03:33 UTC)
- Expired
- Mar 9, 2002, 11:15 PM EST
- In force
- 42 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Columbia County, PA, Montour County, PA, Northumberland County, PA, Snyder County, PA, Union County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 9, 10:35 PM EST | Thunderstorm Wind 50 E | Lewisburg, PA | Trees were down. |
| Mar 9, 10:45 PM EST | Thunderstorm Wind 50 E | Selinsgrove, PA | Trees were reported down in Selinsgrove. |
| Mar 9, 10:50 PM EST | Thunderstorm Wind 50 E | Danville, PA | Trees and wires were reported down in Danville. |
| Mar 9, 11:00 PM EST | Thunderstorm Wind 50 E | Sunbury, PA | Trees were downed. |
| Mar 9, 11:05 PM EST | Thunderstorm Wind 50 E | Bloomsburg, PA | Trees were reported down in Bloomsburg. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 9, 8:30 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 3.6 hours before the alert went out and 227 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
- 445 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 657 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 375 m²/s²
- 0-3 km storm-relative helicity
- 418 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KCTP 100333 SVRCTP PAC037-093-097-109-119-100415- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 1031 PM EST SAT MAR 9 2002 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COLUMBIA COUNTY IN PENNSYLVANIA NORTHUMBERLAND COUNTY IN PENNSYLVANIA MONTOUR COUNTY IN PENNSYLVANIA UNION COUNTY IN PENNSYLVANIA SNYDER COUNTY IN PENNSYLVANIA * UNTIL 1115 PM EST. * AT 1031 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A NORTH-SOUTH LINE OF SEVERE THUNDERSTORMS JUST TO THE WEST OF LEWISBURG AND SELINSGROVE NORTHEAST AT 50 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... LEWISBURG AND SELINSGROVE AT 1040 PM. SUNBURY AT 1045 PM. TREVORTON AND RIVERSIDE AT 1050 PM. MECHANICSVILLE AND DANVILLE AT 1055 PM. ELYSBURG AT 1100 PM. ESPY AND CATAWISSA AT 1105 PM. THIS IS A DANGEROUS STORM. STAY INDOORS AWAY FROM WINDOWS. SEVERE THUNDERSTORMS CONTAIN DAMAGING WINDS 58 MPH OR STRONGER OR HAIL THREE QUARTERS OF AN INCH OR LARGER. $$ LAT...LON 4107 7701 4061 7708 4101 7596 4139 7601 DANGELO
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 10:44 PM EST | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 31 min |
| Mar 9, 10:45 PM EST | Severe Thunderstorm Warning | CTP | Dauphin, Lebanon, Schuylkill | 60 min |
| Mar 9, 11:17 PM EST | Severe Thunderstorm Warning | CTP | Lancaster, York | 73 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2002Every severe thunderstorm warning in 2002
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.