Alert archive / North Carolina / Freeze Warnings in 2007

Freeze Warning 1, NWS Raleigh, NC

April 5, 200731 counties in North Carolina

NWS Raleigh, NC issued this freeze warning at Apr 5, 2007, 11:05 AM EDT for 31 counties in North Carolina. It took effect at Apr 6, 2007, 12:00 AM EDT. It was in force for 9 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: Apr 5, 2007, 11:05 AM EDT (15:05 UTC)
In effect from: Apr 6, 2007, 12:00 AM EDT
Expired: Apr 6, 2007, 8:48 AM EDT
In force: 9 hr
Issued by: NWS Raleigh, NC

All 31 counties

Alamance County, NC, Anson County, NC, Chatham County, NC, Cumberland County, NC, Davidson County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Granville County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 3.1 hours before the alert went out and 93 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1339 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: -91 m²/s²
0-3 km storm-relative helicity: -92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze 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 freeze warning went out at Apr 5, 9:52 AM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Apr 5, 9:52 AM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Apr 5, 9:40 AM EDT, 1 hour 25 minutes before

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In the hours before

Special weather statement, Apr 5, 5:07 AM EDT, 5 hours 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
507 AM EDT THU APR 5 2007

NCZ007>011-021>028-038>043-073>078-083>086-088-089-052115-
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-
INCLUDING THE CITIES OF...ROXBORO...OXFORD...HENDERSON...
WARRENTON...ROANOKE RAPIDS...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...CHAPEL HILL...DURHAM...LOUISBURG...
NASHVILLE...ROCKY MOUNT...LEXINGTON...ASHEBORO...PITTSBORO...
RALEIGH...SMITHFIELD...WILSON...ALBEMARLE...TROY...
SOUTHERN PINES...SANFORD...LILLINGTON...GOLDSBORO...WADESBORO...
ROCKINGHAM...LAURINBURG...RAEFORD...FAYETTEVILLE...CLINTON
507 AM EDT THU APR 5 2007

.FIRE DANGER STATEMENT...

...INCREASED FIRE DANGER FOR TODAY...

NORTHWEST WINDS WILL CONTINUE TO FILTER IN SIGNIFICANTLY COLDER
AND DRIER AIR INTO CENTRAL NORTH CAROLINA TODAY. HIGH TEMPERATURES
WILL BE IN THE 50S WITH NORTHWEST WINDS AT 10 TO 15 MPH. WINDS WILL
GUST AS HIGH AS 25 MPH AND RELATIVE HUMIDITY VALUES WILL DROP TO
AROUND 25 PERCENT DURING THE AFTERNOON. DUE TO THE ABNORMALLY DRY
CONDITIONS ALL ACROSS CENTRAL NORTH CAROLINA...THE FOREST SERVICE
REPORTS THAT LARGE AND FINE FUELS ARE AT DANGEROUSLY LOW LEVELS.
THE COMBINATION OF GUSTY WINDS...LOW RELATIVE HUMIDITIES... AND
DRY FUELS...WILL RESULT IN AN INCREASED FIRE DANGER FOR TODAY.

NO BURNING SHOULD BE ATTEMPTED. IF YOU SEE A BRUSH OR GRASS FIRE
IN YOUR AREA...CALL YOUR LOCAL FIRE DEPARTMENT IMMEDIATELY.

RHJ

Special weather statement, Apr 5, 10:18 AM EDT, 47 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 9:17 AM EDT	Red Flag Warning	RAH	Alamance, Anson, Chatham, Cumberland, Davidson, Durham and 25 more	11 hr
Apr 5, 2:38 PM EDT	Fire Weather Watch	RAH	Alamance, Anson, Chatham, Cumberland, Davidson, Durham and 25 more	69 hr
Apr 5, 3:20 PM EDT	Freeze Watch	RAH	Alamance, Anson, Chatham, Cumberland, Davidson, Durham and 25 more	17 hr

Nearby

Freeze Warnings in North Carolina, 2007 Every freeze warning in 2007

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.