Alert archive / North Carolina / Special Weather Statements in 2016

Special Weather Statement, NWS Raleigh, NC

August 7, 2016Guilford County, North Carolina

NWS Raleigh, NC issued this special weather statement at Aug 7, 2016, 1:53 AM EDT for Guilford County, North Carolina. It was in force for 67 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
Aug 7, 2016, 1:53 AM EDT (05:53 UTC)
Expired
Aug 7, 2016, 3:00 AM EDT
In force
67 min
Issued by
NWS Raleigh, NC

County Guilford County, NC

The radar

The Roanoke radar (KFCX), 124 km from the middle of the area, began a volume at 05:53 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 00:00Z, 5.9 hours before the alert went out and 14 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 00:00Z on 2016-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 344 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 00:00Z on 2016-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
344 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1582 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
41 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 Raleigh, NC wrote its last area forecast discussion before this special weather statement went out at Aug 7, 1:20 AM EDT, 33 minutes earlier.

Area forecast discussion, Aug 7, 1:20 AM EDT, 33 minutes before
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Hazardous weather outlook, Aug 6, 8:50 PM EDT, 5 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
850 PM EDT SAT AUG 6 2016

NCZ007>011-021>028-038>043-073>078-083>086-088-089-080100-
PERSON-GRANVILLE-VANCE-WARREN-HALIFAX-FORSYTH-GUILFORD-ALAMANCE-
ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-DAVIDSON-RANDOLPH-CHATHAM-WAKE-
JOHNSTON-WILSON-STANLY-MONTGOMERY-MOORE-LEE-HARNETT-WAYNE-ANSON-
RICHMOND-SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
850 PM EDT SAT AUG 6 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

A FLASH FLOOD WATCH MAY BE NEEDED SUNDAY INTO MONDAY NIGHT...
ESPECIALLY OVER THE PIEDMONT.

CLUSTERS OF SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN ARE EXPECTED
SUNDAY AFTERNOON AND NIGHT. MANY AREAS SHOULD SEE BETWEEN 1 AND
3 INCHES OF RAINFALL, WITH LOCALIZED FLOODING POSSIBLE.
ADDITIONAL HEAVY RAIN MAY OCCUR OVER THE REGION WELL INTO MONDAY,
COURTESY OF A VERY SLOW MOVING OR STALLED FRONT ACROSS THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Aug 7, 12:45 AM EDT, 1 hour 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1245 AM EDT SUN AUG 7 2016

NCZ007-022>025-070600-
GUILFORD   NC-PERSON   NC-DURHAM   NC-ORANGE   NC-ALAMANCE   NC-
1245 AM EDT SUN AUG 7 2016

...AN AREA OF SHOWERS AND STRONG THUNDERSTORMS WILL AFFECT PORTIONS
OF GUILFORD...SOUTHERN PERSON...NORTHWESTERN DURHAM...NORTHERN
ORANGE AND ALAMANCE COUNTIES UNTIL 200 AM EDT...

AT 1240 AM EDT...DOPPLER RADAR WAS TRACKING AN AREA OF SHOWERS AND
STRONG THUNDERSTORMS STRETCHING FROM NEAR STOKESDALE EAST TO
REIDSVILLE TO NEAR YANCEYVILLE...MOVING SOUTHEAST AT 15 MPH.

VERY HEAVY RAIN, FREQUENT LIGHTNING AND WIND GUSTS IN EXCESS OF 35
MPH WILL BE POSSIBLE WITH THESE STORMS AS THEY MOVE SOUTHEAST. THESE
STORMS WILL INITIALLY IMPACT LOCATIONS NEAR AND NORTH OF INTERSTATE
85 WITH THE STRONGEST STORMS MOVING INTO NORTHERN GUILFORD
AND NORTHERN ALAMANCE COUNTIES.

LOCATIONS IMPACTED INCLUDE...
SUMMERFIELD...GREENSBORO...UNION RIDGE...BURLINGTON...ROXBORO...
MEBANE...ROUGEMONT...MCLEANSVILLE AND CARR.

LAT...LON 3625 7881 3597 7928 3598 8002 3626 8001
      3624 7915 3639 7915 3641 7894
TIME...MOT...LOC 0436Z 333DEG 18KT 3621 7988

BLAES
Special weather statement, Aug 7, 1:53 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 12:45 AM EDTSpecial Weather StatementRAHAlamance, Guilford, Person75 min
Aug 7, 2:29 AM EDTAreal Flood AdvisoryRAHGuilford2 hr
Aug 7, 12:15 PM EDTSpecial Weather StatementRAHStanly45 min
Aug 7, 12:33 PM EDTSpecial Weather StatementRAHStanly42 min
Aug 7, 12:53 PM EDTAreal Flood AdvisoryRAHStanly3 hr
Aug 7, 1:08 PM EDTFlash Flood WarningRAHStanly3 hr
Aug 7, 1:12 PM EDTAreal Flood AdvisoryRAHChatham, Durham, Orange, Wake3 hr
Aug 7, 1:26 PM EDTFlash Flood WarningRAHChatham, Durham, Wake3 hr
Aug 7, 1:53 PM EDTAreal Flood AdvisoryRAHJohnston, Wayne3 hr
Aug 7, 2:48 PM EDTFlash Flood WarningRAHHarnett, Johnston, Wayne3 hr
Aug 7, 4:09 PM EDTAreal Flood AdvisoryRAHMoore2 hr
Aug 7, 4:49 PM EDTSpecial Weather StatementRAHCumberland, Hoke, Sampson41 min
Aug 7, 5:04 PM EDTSpecial Weather StatementRAHChatham41 min
Aug 7, 5:05 PM EDTAreal Flood AdvisoryRAHCumberland, Hoke, Sampson115 min
Aug 7, 5:11 PM EDTSpecial Weather StatementRAHAnson, Richmond, Scotland79 min
Aug 7, 5:18 PM EDTFlash Flood WarningRAHCumberland117 min
Aug 7, 5:33 PM EDTFlash Flood WarningRAHHoke3 hr

Nearby

Special Weather Statements in North Carolina, 2016Every special weather statement in 2016

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.