Alert archive / New York / Special Weather Statements in 2018

Special Weather Statement, NWS Buffalo, NY

July 4, 2018Erie County, New York

NWS Buffalo, NY issued this special weather statement at Jul 4, 2018, 5:34 PM EDT for Erie County, New York. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 4, 2018, 5:34 PM EDT (21:34 UTC)
Expired
Jul 4, 2018, 6:15 PM EDT
In force
41 min
Issued by
NWS Buffalo, NY

County Erie County, NY

The radar

The Buffalo radar (KBUF), 53 km from the middle of the area, began a volume at 21:35 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.6 hours before the alert went out and 52 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, Buffalo Intl Airport, NY at 12:00Z on 2018-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 466 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, Buffalo Intl Airport, NY at 12:00Z on 2018-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 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
466 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1219 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this special weather statement went out at Jul 4, 4:11 PM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Jul 4, 4:11 PM EDT, 1 hour 23 minutes before
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Hazardous weather outlook, Jul 4, 3:02 PM EDT, 2 hours 32 minutes before
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In the hours before

Local storm report, Jul 4, 11:45 AM EDT, 5 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BUFFALO NY
1145 AM EDT WED JUL 04 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     LIGHTNING        BELMONT                 42.22N  78.03W
07/04/2018                   ALLEGANY           NY   FIRE DEPT/RESCUE

            *** 1 INJ *** MALE STRUCK BY LIGHTNING ALONG SR 244
            NEAR AMITY. CORRECTED TIME ON REPORT.

&&

CORRECTED FATALITIES

EVENT NUMBER BUF1800493

DPK
Local storm report, Jul 4, 11:46 AM EDT, 5 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1146 AM EDT WED JUL 04 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0815 AM     FLASH FLOOD      BOLIVAR                 42.07N  78.17W
07/04/2018                   ALLEGANY           NY   LAW ENFORCEMENT

            ROUTE 275 IN BOLIVAR CLOSED DUE TO WATER AND ASSOCIATED
            DEBRIS ON ROAD. TIME ESTIMATED.

0815 AM     FLASH FLOOD      LITTLE GENESEE          42.03N  78.21W
07/04/2018                   ALLEGANY           NY   LAW ENFORCEMENT

            ROUTE 5A IN THE TOWN OF GENESEE CLOSED DUE TO WATER AND
            ASSOCIATED DEBRIS OVER ROAD. TIME ESTIMATED.

0845 AM     FLASH FLOOD      WEST CLARKSVILLE        42.13N  78.24W
07/04/2018                   ALLEGANY           NY   LAW ENFORCEMENT

            ROUTE 40 IN THE TOWN OF CLARKSVILLE CLOSED DUE TO WATER
            AND ASSOCIATED DEBRIS OVER THE ROAD. TIME ESTIMATED.

0900 AM     FLASH FLOOD      4 S BELFAST             42.28N  78.11W
07/04/2018                   ALLEGANY           NY   LAW ENFORCEMENT

            ROUTE 41 IN THE TOWN OF BELFAST CLOSED DUE TO WATER AND
            ASSOCIATED DEBRIS OVER ROAD. TIME ESTIMATED.

0900 AM     FLASH FLOOD      5 S STANNARDS           42.01N  77.91W
07/04/2018                   ALLEGANY           NY   LAW ENFORCEMENT

            RT 19 IN SHONGO CLOSED DUE TO WATER AND ASSOCIATED
            DEBRIS OVER ROAD. TIME ESTIMATED.

&&

EVENT NUMBER BUF1800497
EVENT NUMBER BUF1800498
EVENT NUMBER BUF1800499
EVENT NUMBER BUF1800500
EVENT NUMBER BUF1800501

DPK
Special weather statement, Jul 4, 1:27 PM EDT, 4 hours 7 minutes before
Special Weather Statement
National Weather Service Buffalo NY
127 PM EDT Wed Jul 4 2018

NYZ021-042100-
Allegany-
Including the city of Wellsville
127 PM EDT Wed Jul 4 2018

...HEAVY UPSTREAM RAINS WILL CAUSE RAPID RISES ALONG THE GENESEE
RIVER SOUTH OF WELLSVILLE...

Very heavy rain fell across upper portions of the Genesee River
Basin in Northern Pennsylvania this morning. It will take several
hours, but this will cause water levels to rise unusually fast
along the Genesee River this afternoon and evening. Although these
rises may remain within river banks, anyone along the Genesee
River from the Pennsylvania border to Wellsville should be ready
for an unusually fast rise in water levels. This is likely to
occur near the Pennsylvania border around mid-afternoon and near
Wellsville early this evening. Anyone who is boating, fishing, or
camping along the Genesee River in these areas should prepare for
rising waters and seek higher ground.

Apffel
Local storm report, Jul 4, 2:03 PM EDT, 3 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
203 PM EDT WED JUL 04 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0945 AM     FLASH FLOOD      OLEAN                   42.08N  78.43W
07/04/2018                   CATTARAUGUS        NY   SOCIAL MEDIA

            BRIDGE WASHED OUT ON UNION VALLEY ROAD.

&&

EVENT NUMBER BUF1800502

AR
Local storm report, Jul 4, 3:25 PM EDT, 2 hours 9 minutes before
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Special weather statement, Jul 4, 5:34 PM EDT, 0 minutes before
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The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 7:40 AM EDTSpecial Weather StatementBUFAllegany35 min
Jul 4, 8:18 AM EDTFlash Flood WarningBUFAllegany3 hr
Jul 4, 9:12 AM EDTFlash Flood WarningBUFCattaraugus3 hr
Jul 4, 2:44 PM EDTHeat AdvisoryBUFCayuga, Erie, Genesee, Jefferson, Lewis, Livingston and 6 more29 hr
Jul 4, 5:38 PM EDTSevere Thunderstorm WarningBUFCattaraugus, Erie47 min

Nearby

Special Weather Statements in New York, 2018Every special weather statement in 2018

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.