Alert archive / North Carolina / Flash Flood Warnings in 2009

Flash Flood Warning 13, NWS Raleigh, NC

June 16, 2009Wake County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jun 16, 2009, 8:50 AM EDT for Wake County, North Carolina. 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
Jun 16, 2009, 8:50 AM EDT (12:50 UTC)
Expired
Jun 16, 2009, 12:15 PM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Flood severity
None

County Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 20 km from the middle of the area, began a volume at 12:53 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 0.8 hours before the alert went out and 117 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, Greensboro/Hi Pt, NC at 12:00Z on 2009-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 134 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, Greensboro/Hi Pt, NC at 12:00Z on 2009-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.193958Sfc1 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
134 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
451 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

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 Raleigh, NC wrote its last area forecast discussion before this flash flood warning went out at Jun 16, 7:44 AM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, Jun 16, 7:44 AM EDT, 1 hour 6 minutes before
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Hazardous weather outlook, Jun 16, 4:43 AM EDT, 4 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
443 AM EDT TUE JUN 16 2009

NCZ007>009-021>027-038>043-073>078-083>086-088-089-170845-
PERSON-GRANVILLE-VANCE-FORSYTH-GUILFORD-ALAMANCE-ORANGE-DURHAM-
FRANKLIN-NASH-DAVIDSON-RANDOLPH-CHATHAM-WAKE-JOHNSTON-WILSON-STANLY-
MONTGOMERY-MOORE-LEE-HARNETT-WAYNE-ANSON-RICHMOND-SCOTLAND-HOKE-
CUMBERLAND-SAMPSON-
443 AM EDT TUE JUN 16 2009

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLASH FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS AND OTHERS ARE ENCOURAGED TO REPORT ANY OBSERVED
FLOODING OR RAPID RISES IN CREEKS AND STREAMS TO LOCAL OFFICIALS
FOR RELAY TO THE NATIONAL WEATHER SERVICE.

NCZ010-011-028-170845-
WARREN-HALIFAX-EDGECOMBE-
443 AM EDT TUE JUN 16 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS TODAY MAY PRODUCE BRIEF HEAVY RAINFALL. AMOUNTS UP TO AN
INCH AN HOUR ARE POSSIBLE... WHICH COULD PRODUCE CONSIDERABLE
PONDING OF WATER ON ROADS... ESPECIALLY IN LOW LYING AREAS...
UNDERPASSES... AND IN CITIES AND TOWNS. OTHERWISE... HAZARDOUS
WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS AND OTHERS ARE ENCOURAGED TO REPORT ANY OBSERVED
STREET FLOODING OR RAPID RISES IN CREEKS AND STREAMS TO LOCAL
OFFICIALS FOR RELAY TO THE NATIONAL WEATHER SERVICE.

GIH

In the hours before

Special weather statement, Jun 16, 5:26 AM EDT, 3 hours 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
526 AM EDT TUE JUN 16 2009

NCZ025-040-041-161100-
DURHAM-CHATHAM-WAKE-
INCLUDING THE CITIES OF...DURHAM...PITTSBORO...RALEIGH
526 AM EDT TUE JUN 16 2009

...SHOWERS PRODUCING HEAVY RAINFALL WILL AFFECT PORTIONS OF THE
TRIANGLE AREA THROUGH 7 AM...

AT 520 AM EDT... DOPPLER RADAR INDICATED AN AREA SHOWERS PRODUCING
VERY HEAVY RAINFALL ACROSS PORTIONS OF WAKE... CHATHAM... AND
DURHAM COUNTIES. RAINFALL AMOUNTS OF UP TO ONE INCH ARE EXPECTED
THROUGH 7 AM WITH THESE SHOWERS.

SOME LOCATIONS TO BE AFFECTED BY THESE HEAVY SHOWERS INCLUDE...
RALEIGH... CARY... APEX... DURHAM... FEARRINGTON... MORRISVILLE..
AND GARNER.

MOTORISTS SHOULD DRIVE WITH CAUTION TO AVOID HYDROPLANING. MINOR
FLOODING OF LOW LYING AREAS CAN BE EXPECTED.

BSD
Special weather statement, Jun 16, 6:15 AM EDT, 2 hours 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
615 AM EDT TUE JUN 16 2009

NCZ011-027-028-043-161200-
HALIFAX-NASH-EDGECOMBE-WILSON-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...NASHVILLE...
ROCKY MOUNT...WILSON
615 AM EDT TUE JUN 16 2009

...SHOWERS PRODUCING HEAVY RAINFALL WILL AFFECT PORTIONS OF THE
NORTHERN COASTAL PLAIN THROUGH 8 AM...

AT 615 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AN AREA OF MODERATE TO HEAVY SHOWERS ACROSS PORTIONS OF THE
NORTHERN COASTAL PLAIN. RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE
POSSIBLE THROUGH 730 AM.

SOME LOCATIONS TO BE AFFECTED INCLUDE... WILSON... ROCKY MOUNT...
NASHVILLE... ENFIELD... AND TARBORO.

EXCESSIVE RUNOFF WILL CAUSE MINOR FLOODING OF SMALL CREEKS AND
STREAMS...AS WELL AS HIGHWAYS...STREETS AND UNDERPASSES. DO NOT
DRIVE YOUR VEHICLE INTO AREAS WHERE WATER IS OVER THE ROADWAY.
MOTORISTS SHOULD DRIVE WITH CAUTION TO AVOID HYDROPLANING.

BSD
Local storm report, Jun 16, 6:37 AM EDT, 2 hours 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
637 AM EDT TUE JUN 16 2009

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

0634 AM     FLASH FLOOD      2 SSW RALEIGH           35.79N 78.65W
06/16/2009                   WAKE               NC   TRAINED SPOTTER

            A TRAINED SPOTTER REPORTED 3 FEET OF WATER OVER THE
            INTERSECTION OF ST. MARYS STREET AND PEACE STREET IN
            RALEIGH.

&&

BSD
Local storm report, Jun 16, 7:39 AM EDT, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
739 AM EDT TUE JUN 16 2009

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

0725 AM     FLASH FLOOD      2 ENE BAILEY            35.79N 78.08W
06/16/2009                   NASH               NC   DEPT OF HIGHWAYS

            PUBLIC REPORTS AND DOT REPORTS OF FLOODING NEAR WEST
            HORNE CHURCH ROAD AND CHRISTIAN ROAD.

&&

DJF
Local storm report, Jun 16, 8:21 AM EDT, 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
821 AM EDT TUE JUN 16 2009

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

0755 AM     FLASH FLOOD      4 SW RALEIGH            35.77N 78.69W
06/16/2009                   WAKE               NC   NWS EMPLOYEE

            SECTION OF AVENT FERRY ROAD BETWEEN GORMAN STREET AND
            VARSITY DRIVE CLOSED BY 1-2 FEET OF WATER.

&&

VINCENT
Local storm report, Jun 16, 8:37 AM EDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
837 AM EDT TUE JUN 16 2009

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

0833 AM     FLASH FLOOD      6 S RALEIGH             35.73N 78.63W
06/16/2009                   WAKE               NC   TRAINED SPOTTER

            SPOTTER REPORTED 6 INCHES OF MOVING WATER OVER THE ROAD
            ON OLD GARNER ROAD SOUTH OF TRYON ROAD.

&&

ELLIS

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 4:20 AM EDTFlash Flood WatchRAHAlamance, Anson, Chatham, Cumberland, Davidson, Durham and 22 more9 hr
Jun 16, 6:08 AM EDTFlash Flood WarningRAHDurham, Wake3 hr
Jun 16, 6:45 AM EDTFlash Flood WarningRAHEdgecombe, Franklin, Johnston, Nash, Wilson3 hr
Jun 16, 7:37 AM EDTRiver Flood WarningRAHWake3 hr
Jun 16, 9:39 AM EDTFlash Flood WarningRAHEdgecombe, Franklin, Johnston, Nash, Wilson111 min
Jun 16, 12:20 PM EDTRiver Flood WarningRAHJohnston52 hr
Jun 16, 12:20 PM EDTRiver Flood WarningRAHJohnston26 hr

Nearby

Flash Flood Warnings in North Carolina, 2009Every flash flood warning in 2009

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.