Alert archive / Pennsylvania / Flash Flood Warnings in 1993

Flash Flood Warning 45, NWS State College, PA

November 28, 1993Huntingdon County, Pennsylvania

NWS State College, PA issued this flash flood warning at Nov 28, 1993, 12:36 AM EST for Huntingdon County, Pennsylvania. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Nov 28, 1993, 12:36 AM EST (05:36 UTC)
Expired
Nov 28, 1993, 3:45 AM EST
In force
3 hr
Issued by
NWS State College, PA
Area
Whole counties

County Huntingdon County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 5.6 hours before the alert went out and 171 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, Washington/Dulle, VA at 00:00Z on 1993-11-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 1993-11-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 524 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
624 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
524 m²/s²
0-3 km storm-relative helicity
708 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Nov 27, 7:25 PM EST, 5 hours 11 minutes before
PAZ012-037-038-041-042-045-046-049>053-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
725 PM EST SAT NOV 27 1993

...STRONG GUSTY WINDS ARE BATTERING NORTHCENTRAL PENNSYLVANIA THIS
EVENING...

EAST AND SOUTHEAST WINDS WERE GUSTING BETWEEN 40 AND 50 MILES AN HOUR
ACROSS PARTS OF NORTHCENTRAL PENNSYLVANIA SATURDAY EVENING.  HERE AT
THE WILLIAMSPORT-LYCOMING COUNTY AIRPORT AT AROUND 630 PM EST...A WIND
GUST OF 47 MILES AN HOUR WAS RECORDED.

IT IS POSSIBLE THAT THESE STRONG WINDS COULD BRING DOWN SOME TREE
LIMBS AND POWER LINES...AS WELL AS CAUSE SCATTERED POWER OUTAGES.

ALSO...DRIVERS OF HIGH PROFILE VEHICLES SHOULD BE ESPECIALLY CAUTIOUS
IF TRAVELING ACROSS THE RIDGES TONIGHT.  THE STRONG WINDS COMBINED
WITH HEAVY RAIN WILL REDUCE VISIBILITIES AND PRODUCE SOME POOR DRIVING
CONDITIONS.

TG
Special weather statement, Nov 27, 7:25 PM EST, 5 hours 11 minutes before
PAZ012-037-038-041-042-045-046-049>053-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
725 PM EST SAT NOV 27 1993

...STRONG GUSTY WINDS ARE BATTERING NORTHCENTRAL PENNSYLVANIA THIS
EVENING...

EAST AND SOUTHEAST WINDS WERE GUSTING BETWEEN 40 AND 50 MILES AN HOUR
ACROSS PARTS OF NORTHCENTRAL PENNSYLVANIA SATURDAY EVENING.  HERE AT
THE WILLIAMSPORT-LYCOMING COUNTY AIRPORT AT AROUND 630 PM EST...A WIND
GUST OF 47 MILES AN HOUR WAS RECORDED.

IT IS POSSIBLE THAT THESE STRONG WINDS COULD BRING DOWN SOME TREE
LIMBS AND POWER LINES...AS WELL AS CAUSE SCATTERED POWER OUTAGES.

ALSO...DRIVERS OF HIGH PROFILE VEHICLES SHOULD BE ESPECIALLY CAUTIOUS
IF TRAVELING ACROSS THE RIDGES TONIGHT.  THE STRONG WINDS COMBINED
WITH HEAVY RAIN WILL REDUCE VISIBILITIES AND PRODUCE SOME POOR DRIVING
CONDITIONS.

TG
Special weather statement, Nov 27, 10:41 PM EST, 1 hour 55 minutes before
PAC026-280445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA
1041 PM EST SAT NOV 27 1993

AT 1030 PM HUNTINGDON EMERGENCY MANAGEMENT PERSONNEL REPORTED THAT SOME
ROADS AND BASEMENTS WERE FLOODING IN THE HUNTINGDON AREA DUE TO THE
PRECIPITATION THAT HAS FALLEN THROUGHOUT THE DAY. SEVERAL SMALL STREAMS
IN THE HUNTINGDON AREA WERE ALSO REPORTED TO BE APPROACHING BANKFULL.

IF YOU LIVE IN A LOW LYING AREA...STAY ALERT FOR RAPIDLY RISING WATER IN
STREAMS AND CREEKS.  ROADWAYS WHICH HAVE POOR DRAINAGE ARE ALSO
SUSCEPTIBLE TO FLOODING.

AVOID STREAMS WHICH ARE CLOSE TO BANKFULL OR FLOODED...NEVER TRY TO
CROSS A FLOODED STREAM OR FLOODED ROADWAY.

CRUZ
NNNN
Special weather statement, Nov 27, 10:41 PM EST, 1 hour 55 minutes before
PAC026-280445-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HARRISBURG PA
1041 PM EST SAT NOV 27 1993

AT 1030 PM HUNTINGDON EMERGENCY MANAGEMENT PERSONNEL REPORTED THAT SOME
ROADS AND BASEMENTS WERE FLOODING IN THE HUNTINGDON AREA DUE TO THE
PRECIPITATION THAT HAS FALLEN THROUGHOUT THE DAY. SEVERAL SMALL STREAMS
IN THE HUNTINGDON AREA WERE ALSO REPORTED TO BE APPROACHING BANKFULL.

IF YOU LIVE IN A LOW LYING AREA...STAY ALERT FOR RAPIDLY RISING WATER IN
STREAMS AND CREEKS.  ROADWAYS WHICH HAVE POOR DRAINAGE ARE ALSO
SUSCEPTIBLE TO FLOODING.

AVOID STREAMS WHICH ARE CLOSE TO BANKFULL OR FLOODED...NEVER TRY TO
CROSS A FLOODED STREAM OR FLOODED ROADWAY.

CRUZ
NNNN
Special weather statement, Nov 27, 11:20 PM EST, 1 hour 16 minutes before
PAZ012-037-038-041-042-045-046-049>053-281000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
1120 PM EST SAT NOV 27 1993

...STRONG GUSTY WINDS CAUSING SOME MINOR DAMAGE ACROSS NORTHCENTRAL
PENNSYLVANIA...

EAST AND SOUTHEAST WINDS CONTINUED TO GUST BETWEEN 30 AND 40 MILES AN
HOUR ACROSS PARTS OF NORTHCENTRAL PENNSYLVANIA SATURDAY NIGHT.  THESE
STRONG WINDS HAVE BLOWN DOWN SOME TREE LIMBS...POWER LINES...AND
STREET SIGNS...AS WELL AS CAUSED SOME SCATTERED POWER OUTAGES ACROSS
THE REGION.

STRONG AND GUSTY WINDS WILL CONTINUE OVERNIGHT...AND SOME ADDITIONAL
MINOR DAMAGE IS POSSIBLE THROUGHOUT NORTHCENTRAL PENNSYLVANIA.

ALSO...DRIVERS OF HIGH PROFILE VEHICLES SHOULD BE ESPECIALLY CAUTIOUS
IF TRAVELING ACROSS THE RIDGES OVERNIGHT.  THE STRONG WINDS COMBINED
WITH HEAVY RAIN WILL REDUCE VISIBILITIES AND PRODUCE SOME POOR DRIVING
CONDITIONS.

TG
Special weather statement, Nov 27, 11:21 PM EST, 1 hour 15 minutes before
PAZ012-037-038-041-042-045-046-049>053-281000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILLIAMSPORT PA
1120 PM EST SAT NOV 27 1993

...STRONG GUSTY WINDS CAUSING SOME MINOR DAMAGE ACROSS NORTHCENTRAL
PENNSYLVANIA...

EAST AND SOUTHEAST WINDS CONTINUED TO GUST BETWEEN 30 AND 40 MILES AN
HOUR ACROSS PARTS OF NORTHCENTRAL PENNSYLVANIA SATURDAY NIGHT.  THESE
STRONG WINDS HAVE BLOWN DOWN SOME TREE LIMBS...POWER LINES...AND
STREET SIGNS...AS WELL AS CAUSED SOME SCATTERED POWER OUTAGES ACROSS
THE REGION.

STRONG AND GUSTY WINDS WILL CONTINUE OVERNIGHT...AND SOME ADDITIONAL
MINOR DAMAGE IS POSSIBLE THROUGHOUT NORTHCENTRAL PENNSYLVANIA.

ALSO...DRIVERS OF HIGH PROFILE VEHICLES SHOULD BnE ESPECIALLY CAUTIOUS
IF TRAVELING ACROSS THE RIDGES OVERNIGHT.  THE STRONG WINDS COMBINED
WITH HEAVY RAIN WILL REDUCE VISIBILITIES AND PRODUCE SOME POOR DRIVING
CONDITIONS.

TG

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 28, 2:01 AM ESTFlash Flood WarningCTPLancaster3 hr
Nov 28, 3:41 AM ESTFlash Flood WarningCTPHuntingdon4 hr
Nov 28, 4:40 AM ESTFlash Flood WarningCTPClinton5 hr
Nov 28, 5:16 AM ESTFlash Flood WarningCTPLancaster3 hr
Nov 28, 6:01 AM ESTFlash Flood WarningCTPSchuylkill4 hr

Nearby

Flash Flood Warnings in Pennsylvania, 1993Every flash flood warning in 1993

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.