Alert archive / Pennsylvania / Flash Flood Warnings in 1999
Flash Flood Warning 22, NWS State College, PA
NWS State College, PA issued this flash flood warning at Jan 24, 1999, 9:23 AM EST for Huntingdon County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 24, 1999, 9:23 AM EST (14:23 UTC)
- Expired
- Jan 24, 1999, 12:00 PM EST
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Huntingdon County, PA
The radar
The State College radar (KCCX), 56 km from the middle of the area, began a volume at 14:24 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
Pittsburgh, PA (KPIT), launched 12:00Z, 2.4 hours before the alert went out and 179 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- -66 m²/s²
- 0-3 km storm-relative helicity
- -201 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 241423 FFWCTP PAC061-241700- BULLETIN - EAS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 923 AM EST SUN JAN 24 1999 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A * FLOOD WARNING FOR... HUNTINGDON COUNTY IN SOUTH CENTRAL PENNSYLVANIA. * UNTIL 1200 PM EST. * EMERGENCY MANAGEMENT AGENCY OFFICIALS REPORT FLOODING IN SHIRLEY TOWNSHIP AT GILBO...NEAR RUNKS BRIDGE. SEVERAL ROADS HAVE BEEN CLOSED. IN ADDITION...A 300 YARD LONG ICE JAM EXISTS ON THE AUGHWICK CREEK NEAR THE CROMWELL...SHIRLEY TOWNSHIP LINE. NO FLOODING IS BEING REPORTED NEAR THIS ICE JAM AT THIS TIME. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! .END/LA CORTE &
What forecasters said that day
The local office's own words before this flash 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 flash flood warning went out at Jan 24, 9:20 AM EST, 3 minutes earlier.
Area forecast discussion, Jan 24, 9:20 AM EST, 3 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 920 AM EST MON JAN 24 1999 ...WORK ZONES WILL BE SENT BY 1015 AM AS PHLADMCTP... ...ZONES TO FOLLOW BETWEEN BY 1045 AM... BANDS OF FAIRLY HEAVY SNOW RACING ACROSS N PA...AS STRONG JET MAX IS PRESENT ACROSS THE AREA. SYSTEM IS MOVING FAST...SO AMOUNTS WILL NOT BE A LOT. WILL ADJUST FCST AS NEEDED. EXPECT MUCH OF THE DECENT SNOW WILL BE GONE BY LATE MORNING OR EARLY AFT. 00Z NGM A LITTLE COLDER FOR TONIGHT THAN THE ONE I SAW YESTERDAY...BUT CURRENT FCST NOT BAD...THUS WILL NOT CHANGE OTHER PERIODS FOR NOW. WILL MOST LIKELY FINE TUNE FCST FOR FRI FOR N AND W AREAS AFTER I GET A GOOD LOOK AT THE MODELS THIS AFT...BUT STILL CONCERN THAT LACK OF SNOW COVER WILL ALLOW TEMPS TO SOAR THIS WEEK...THUS WILL HAVE TO SLIP MAIN FRONT BACK TO THE SOUTH EITHER LATE WED OR THU...TO GET ANY COOL AIR MUCH FURTHER SOUTH THAN THE NY/PA BORDER OR ROUTE 6...UNLESS THERE IS SNOW COVER OR A DECENT PUSH OF COLD AIR. IN TERMS OF SNOW COVER...NEXT FEW DAYS WILL SLOWLY EAT AWAY AT THE ICE...ESP. ON WED. NIGHTS WILL PUT A BRAKE ON THE SPEED OF THE MELT...THUS GIVING US TIME TO DRY OUT AND RETURN TO MORE OF A NORMAL SITUATION ON AREA STREAMS AND RIVERS. EITHER WAY...LOOKS LIKE ANOTHER LESS THAN PERFECT WEEKEND TAKING FORM. .CTP...NONE. MARTIN
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 23, 7:32 PM EST | Flash Flood Warning | CTP | Huntingdon | 6 hr |
| Jan 23, 10:40 PM EST | Flash Flood Warning | CTP | Centre | 6 hr |
| Jan 23, 11:01 PM EST | Flash Flood Warning | CTP | Juniata, Mifflin | 6 hr |
| Jan 24, 1:58 AM EST | Flash Flood Warning | CTP | Huntingdon | 3 hr |
| Jan 24, 3:58 AM EST | Flash Flood Warning | CTP | Northumberland, Union | 4 hr |
| Jan 24, 4:39 AM EST | Flash Flood Warning | CTP | Centre, Huntingdon, Juniata, Mifflin | 3 hr |
| Jan 24, 7:51 AM EST | Flash Flood Warning | CTP | Centre | 4 hr |
| Jan 24, 7:51 AM EST | Flash Flood Warning | CTP | Juniata | 4 hr |
| Jan 24, 8:00 AM EST | Flash Flood Warning | CTP | Columbia, Northumberland | 4 hr |
| Jan 24, 8:00 AM EST | Flash Flood Warning | CTP | Union | 4 hr |
| Jan 24, 11:59 AM EST | Flash Flood Warning | CTP | Huntingdon | 4 hr |
| Jan 24, 11:59 AM EST | Flash Flood Warning | CTP | Columbia | 4 hr |
| Jan 24, 11:59 AM EST | Flash Flood Warning | CTP | Union | 4 hr |
| Jan 24, 1:16 PM EST | Flash Flood Warning | CTP | Lycoming | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 1999Every flash flood warning in 1999
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.