Alert archive / North Carolina / Flash Flood Warnings in 2011
Flash Flood Warning 42, NWS Raleigh, NC
NWS Raleigh, NC issued this flash flood warning at Aug 27, 2011, 6:01 AM EDT for Johnston County, Sampson County, Wayne County, North Carolina. It was in force for 6 hr. 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 27, 2011, 6:01 AM EDT (10:01 UTC)
- Expired
- Aug 27, 2011, 12:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Raleigh, NC
- Area
- Storm-based polygon
- Flood severity
- None
Counties Johnston County, NC, Sampson County, NC, Wayne County, NC
The radar
The Raleigh/Durham radar (KRAX), 55 km from the middle of the area, began a volume at 10:04 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
Newport, NC (KMHX), launched 00:00Z, 10.0 hours before the alert went out and 135 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
- 148 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 445 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 361 m²/s²
- 0-3 km storm-relative helicity
- 415 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
176
WGUS52 KRAH 271001
FFWRAH
NCC101-163-191-271600-
/O.NEW.KRAH.FF.W.0042.110827T1001Z-110827T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
601 AM EDT SAT AUG 27 2011
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
* FLASH FLOOD WARNING FOR...
JOHNSTON COUNTY IN CENTRAL NORTH CAROLINA
WAYNE COUNTY IN CENTRAL NORTH CAROLINA
SAMPSON COUNTY IN CENTRAL NORTH CAROLINA
* UNTIL NOON EDT
* AT 554 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN RETURNING TO SAMPSON...WAYNE AND JOHNSTON
COUNTIES. DOPPLER RADAR ESTIMATED THAT AS MUCH AS THREE INCHES OF
RAIN LIKELY HAD FALLEN OVERNIGHT IN PARTS OF JOHNSTON AND WAYNE
COUNTIES...AROUND GOLDSBORO AND SMITHFIELD. A RENEWED BAND OF RAIN
COULD RESULT IN AN ADDITIONAL COUPLE OF INCHES OF RAIN...FOR RAIN
TOTALS APPROACHING FIVE INCHES IN SOME LOCATIONS.
* LOCATIONS THREATENED WITH FLOODING INCLUDE WALNUT CREEK...
SMITHFIELD...MOUNT OLIVE...HARRELLS...GOLDSBORO...FREMONT...
CLINTON...CLAYTON AND BENSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS DANGEROUS. NUMEROUS ROADS...ESPECIALLY IN URBAN
AREAS...AND LOW LYING AREAS CAN QUICKLY FLOOD. DO NOT DRIVE WHERE
WATER COVERS THE ROAD. IF YOU ARE EXPERIENCING FLOODING OR LIVE IN A
FLOOD PRONE AREA...MOVE TO HIGHER GROUND.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3491 7854 3499 7865 3509 7867 3520 7865
3534 7853 3552 7870 3571 7846 3581 7827
3571 7816 3560 7812 3558 7782 3540 7780
3517 7784 3515 7790 3519 7801 3518 7816
3488 7814 3474 7819 3471 7811 3455 7825
$$
DJF3 follow-up statements
959
WGUS72 KRAH 271059
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
659 AM EDT SAT AUG 27 2011
NCC101-163-191-271600-
/O.CON.KRAH.FF.W.0042.000000T0000Z-110827T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JOHNSTON NC-WAYNE NC-SAMPSON NC-
659 AM EDT SAT AUG 27 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
SAMPSON...WAYNE AND JOHNSTON COUNTIES...
AT 655 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE ADDITIONAL HEAVY RAIN FALLING OVER GROUND BECOMING
SATURATED IN PARTS OF SAMPSON...WAYNE AND JOHNSTON COUNTIES. DOPPLER
RADAR ESTIMATED NUMEROUS AREAS OF RAINFALL TOTALS AT OR JUST ABOVE
THREE INCHES IN JOHNSTON AND WAYNE COUNTIES. LESSER AMOUNTS WERE
NOTED OVER SAMPSON COUNTY. HOWEVER...ANOTHER BAND OF WIDESPREAD
SHOWERS WERE SPREADING BACK INTO THE SOUTHERN COASTAL PLAIN FROM THE
EAST. THESE SHOWERS WILL AFFECT THE GOLDSBORO AND CLINTON AREAS IN
PARTICULAR THROUGH 8 AM. ESPECIALLY AROUND GOLDSBORO...AN ADDITIONAL
SOLID INCH OF RAIN IS LIKELY BETWEEN 7 AM AND 8 AM.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
CLINTON...WALNUT CREEK...SMITHFIELD...GOLDSBORO...FREMONT...CLAYTON
AND BENSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...AND URBAN AND COUNTRY ROADS...AS WELL AS
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3491 7854 3499 7865 3509 7867 3520 7865
3534 7853 3552 7870 3571 7846 3581 7827
3571 7816 3560 7812 3558 7782 3540 7780
3517 7784 3515 7790 3519 7801 3518 7816
3488 7814 3474 7819 3471 7811 3455 7825
$$
DJF405
WGUS72 KRAH 271156
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
756 AM EDT SAT AUG 27 2011
NCC101-163-191-271600-
/O.CON.KRAH.FF.W.0042.000000T0000Z-110827T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JOHNSTON NC-WAYNE NC-SAMPSON NC-
756 AM EDT SAT AUG 27 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
SAMPSON...WAYNE AND JOHNSTON COUNTIES...
AT 751 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE HEAVY RAIN FALLING OVER SATURATED GROUND IN PARTS OF
SAMPSON...WAYNE AND JOHNSTON COUNTIES. DOPPLER RADAR ESTIMATED THAT
2.5 TO NEARLY 3.5 INCHES OF RAIN HAD LIKELY FALLEN OVER MUCH OF THIS
AREA. THE HIGHER AMOUNTS WERE ESTIMATED BY RADAR AROUND GOLDSBORO...
AND IN A SMALL AREA NEAR SMITHFIELD.
A PERSISTENT BAND OF HEAVY RAIN REMAINED OVER THE AREA...INCLUDING
THE INTERSTATE 95 CORRIDOR. THIS BAND OF HEAVY RAIN COULD PUSH
RAINFALL TOTALS TO AS MUCH AS FOUR TO FIVE INCHES...ESPECIALLY NEAR
GOLDSBORO...SMITHFIELD...AND AREAS OF SAMPSON COUNTY EAST OF CLINTON.
AN ADDITIONAL ONE TO TWO INCHES OF RAIN ARE STILL POSSIBLE BETWEEN 8
AM AND 915 AM. LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT
LIMITED TO WALNUT CREEK...SMITHFIELD...GOLDSBORO...FREMONT...CLAYTON
AND BENSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROAD.
AS LITTLE AS 6 INCHES OF WATER CAN CAUSE YOU TO LOSE CONTROL OF YOUR
VEHICLE. TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES
INCLUDING SPORT UTILITY VEHICLES AND PICKUP TRUCKS. TURN AROUND...
DONT DROWN.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3491 7854 3499 7865 3509 7867 3520 7865
3534 7853 3552 7870 3571 7846 3581 7827
3571 7816 3560 7812 3558 7782 3540 7780
3517 7784 3515 7790 3519 7801 3518 7816
3488 7814 3474 7819 3471 7811 3455 7825
$$
DJF310
WGUS72 KRAH 271348
FFSRAH
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
948 AM EDT SAT AUG 27 2011
NCC101-163-191-271600-
/O.CON.KRAH.FF.W.0042.000000T0000Z-110827T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JOHNSTON NC-WAYNE NC-SAMPSON NC-
948 AM EDT SAT AUG 27 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
SAMPSON...WAYNE AND JOHNSTON COUNTIES...
AT 938 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE RAIN BANDS WITH VERY HEAVY RAIN FROM HURRICANE IRENE MOVING
INLAND OVER THE COASTAL PLAIN. DOPPLER RADAR ESTIMATED THAT TWO TO
FOUR INCHES OF RAIN HAS FALLEN SINCE FRIDAY NIGHT...MAINLY OVER
EXTREME EASTERN SAMPSON AND JOHNSTON COUNTIES INTO WAYNE COUNTY.
WHILE RAIN RATES WITHIN THESE BANDS HAVE DECREASED SLIGHTLY THIS
MORNING...ANOTHER ONE TO TWO INCHES OF RAIN WILL BE POSSIBLE THROUGH
NOON.
LOCATIONS THREATENED BY FLOODING INCLUDE BUT ARE NOT LIMITED TO
WALNUT CREEK...SMITHFIELD...GOLDSBORO...FREMONT...CLAYTON AND BENSON
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THE HEAVY RAIN WILL CAUSE FLASH FLOODING OF
CREEKS AND STREAMS...ROADS...LOW LYING AND POOR DRAINAGE AREAS. DO
NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. MANY
ROADS AND INTERSECTIONS IN THE AREA WILL QUICKLY FLOOD. WHEN
ENCOUNTERING FLOODED ROADS TURN AROUND...DONT DROWN.
PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE BY CALLING...
1...8 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW ENFORCEMENT
AGENCY.
&&
LAT...LON 3491 7854 3499 7865 3509 7867 3520 7865
3534 7853 3552 7870 3571 7846 3581 7827
3571 7816 3560 7812 3558 7782 3540 7780
3517 7784 3515 7790 3519 7801 3518 7816
3488 7814 3474 7819 3471 7811 3455 7825
$$
22The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 1:23 AM EDT | Special Weather Statement | RAH | Edgecombe | 37 min |
| Aug 27, 2:26 AM EDT | Areal Flood Advisory | RAH | Edgecombe, Halifax, Johnston, Nash, Sampson, Wayne and 1 more | 4 hr |
| Aug 27, 3:16 AM EDT | Flash Flood Warning | RAH | Edgecombe, Halifax, Nash, Wilson | 6 hr |
| Aug 27, 4:18 AM EDT | Special Weather Statement | RAH | Edgecombe | 42 min |
| Aug 27, 7:26 AM EDT | Areal Flood Advisory | RAH | Franklin, Vance, Wake, Warren | 5 hr |
| Aug 27, 8:42 AM EDT | Flash Flood Warning | RAH | Edgecombe, Halifax, Nash, Wilson | 3 hr |
| Aug 27, 11:55 AM EDT | Flash Flood Warning | RAH | Edgecombe, Halifax, Johnston, Nash, Wayne, Wilson | 8 hr |
| Aug 27, 5:16 PM EDT | River Flood Warning | RAH | Edgecombe | 4 days |
Nearby
Flash Flood Warnings in North Carolina, 2011Every flash flood warning in 2011
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.