Alert archive / North Carolina / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 75, NWS Raleigh, NC

May 15, 2014Durham County, Granville County, Wake County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at May 15, 2014, 1:28 PM EDT for Durham County, Granville County, Wake County, North Carolina. It was in force for 47 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
May 15, 2014, 1:28 PM EDT (17:28 UTC)
Expired
May 15, 2014, 2:15 PM EDT
In force
47 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon

Counties Durham County, NC, Granville County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 43 km from the middle of the area, began a volume at 17:29 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 15, 11:56 AM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.5 hours before the alert went out and 116 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 2014-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 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 2014-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 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
114 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

247 
WUUS52 KRAH 151728
SVRRAH
NCC063-077-183-151815-
/O.NEW.KRAH.SV.W.0075.140515T1728Z-140515T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
128 PM EDT THU MAY 15 2014

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN GRANVILLE COUNTY IN CENTRAL NORTH CAROLINA...
  NORTH CENTRAL WAKE COUNTY IN CENTRAL NORTH CAROLINA...
  SOUTHEASTERN DURHAM COUNTY IN CENTRAL NORTH CAROLINA...

* UNTIL 215 PM EDT

* AT 128 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 58 MPH. THIS STORM
  WAS LOCATED NEAR RDU INTERNATIONAL...OR NEAR RALEIGH...AND MOVING
  NORTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RALEIGH...CARY...CREEDMOOR...BUTNER...RDU INTERNATIONAL...WILLIAM B
  UMSTEAD STATE PARK...LAKE BUTNER...PURNELL...FALLS LAKE STATE REC
  AREA...FALLS LAKE...ROLLINGVIEW MARINA AND FALLS LAKE BOAT RAMP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. 
ALTHOUGH A TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED... 
ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE... 
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3616 7851 3612 7852 3608 7855 3602 7854
      3580 7864 3581 7881 3619 7880
TIME...MOT...LOC 1728Z 189DEG 17KT 3587 7871 
$$

VINCENT
5 follow-up statements
379 
WWUS52 KRAH 151739
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
139 PM EDT THU MAY 15 2014

NCC063-077-183-151815-
/O.CON.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
GRANVILLE NC-WAKE NC-DURHAM NC-
139 PM EDT THU MAY 15 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHERN GRANVILLE...NORTH CENTRAL WAKE AND SOUTHEASTERN DURHAM
COUNTIES...
 
AT 138 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS 
LOCATED NEAR RDU INTERNATIONAL...OR 8 MILES NORTH OF 
RALEIGH...MOVING NORTH AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...CREEDMOOR...BUTNER...RDU 
INTERNATIONAL...WILLIAM B UMSTEAD STATE PARK...LAKE BUTNER... 
PURNELL...FALLS LAKE STATE REC AREA... FALLS LAKE...ROLLINGVIEW 
MARINA AND FALLS LAKE BOAT RAMP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. 
ALTHOUGH A TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED... 
ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE... 
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3616 7851 3612 7852 3608 7855 3602 7854
      3586 7861 3587 7881 3619 7880
TIME...MOT...LOC 1738Z 190DEG 14KT 3594 7871 

$$

VINCENT
143 
WWUS52 KRAH 151749
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
149 PM EDT THU MAY 15 2014

NCC063-077-183-151815-
/O.CON.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
GRANVILLE NC-WAKE NC-DURHAM NC-
149 PM EDT THU MAY 15 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHERN GRANVILLE...NORTH CENTRAL WAKE AND EAST CENTRAL DURHAM
COUNTIES...
 
AT 149 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS 
LOCATED 7 MILES SOUTH OF CREEDMOOR...MOVING NORTH AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
CREEDMOOR...BUTNER...PURNELL...FALLS LAKE STATE REC AREA...FALLS
LAKE...ROLLINGVIEW MARINA AND FALLS LAKE BOAT RAMP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. 
ALTHOUGH A TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED... 
ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE... 
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3616 7851 3613 7852 3611 7853 3608 7855
      3602 7854 3592 7858 3593 7875 3618 7874
TIME...MOT...LOC 1749Z 192DEG 23KT 3602 7868 

$$

VINCENT
735 
WWUS52 KRAH 151800
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
200 PM EDT THU MAY 15 2014

NCC063-151807-
/O.CAN.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
DURHAM NC-
200 PM EDT THU MAY 15 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DURHAM COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING WILL REMAIN 
ENTIRELY EAST IN FAR NORTHERN WAKE AND SOUTHERN FRANKLIN COUNTIES. 
AS A RESULT...THE WARNING FOR DURHAM COUNTY HAS BEEN CANCELLED.

LAT...LON 3616 7851 3611 7853 3608 7855 3602 7854
      3599 7856 3599 7870 3601 7870 3603 7872
      3603 7873 3618 7874
TIME...MOT...LOC 1757Z 190DEG 17KT 3605 7865 

$$

NCC077-183-151815-
/O.CON.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
GRANVILLE NC-WAKE NC-
200 PM EDT THU MAY 15 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHERN GRANVILLE AND NORTH CENTRAL WAKE COUNTIES...
 
AT 157 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS 
LOCATED NEAR CREEDMOOR...MOVING NORTH AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
CREEDMOOR...BUTNER...PURNELL...FALLS LAKE STATE REC AREA AND FALLS
LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME ROTATION WITHIN THIS STORM. 
ALTHOUGH A TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED... 
ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE... 
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3616 7851 3611 7853 3608 7855 3602 7854
      3599 7856 3599 7870 3601 7870 3603 7872
      3603 7873 3618 7874
TIME...MOT...LOC 1757Z 190DEG 17KT 3605 7865 

$$

VINCENT
275 
WWUS52 KRAH 151811
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
211 PM EDT THU MAY 15 2014

NCC183-151818-
/O.CAN.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
WAKE NC-
211 PM EDT THU MAY 15 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL WAKE COUNTY IS
CANCELLED...
    
THE STORM THAT PROMPTED THE WARNING HAS MOVED NORTH INTO GRANVILLE 
COUNTY...THEREFORE THE WARNING FOR WAKE COUNTY HAS BEEN CANCELLED.

LAT...LON 3617 7864 3616 7851 3606 7854 3602 7855
      3608 7869 3617 7869 3618 7865
TIME...MOT...LOC 1808Z 193DEG 16KT 3607 7863 

$$

NCC077-151815-
/O.CON.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
GRANVILLE NC-
211 PM EDT THU MAY 15 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHEASTERN GRANVILLE COUNTY...
 
AT 208 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING DAMAGING WINDS UP TO 60 MPH. THIS STORM WAS 
LOCATED NEAR CREEDMOOR...MOVING NORTH AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
CREEDMOOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS EXPECTED TO PRODUCE LOCALIZED WIND GUSTS UP TO 60 MPH. 
FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR 
OF YOUR HOME OR BUSINESS.

&&

LAT...LON 3617 7864 3616 7851 3606 7854 3602 7855
      3608 7869 3617 7869 3618 7865
TIME...MOT...LOC 1808Z 193DEG 16KT 3607 7863 

$$

VINCENT
818 
WWUS52 KRAH 151814
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
214 PM EDT THU MAY 15 2014

NCC077-151822-
/O.EXP.KRAH.SV.W.0075.000000T0000Z-140515T1815Z/
GRANVILLE NC-
214 PM EDT THU MAY 15 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRANVILLE COUNTY
WILL EXPIRE AT 215 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS GRADUALLY WEAKENED AND IS 
NO LONGER EXPECTED TO PRODUCE SEVERE WEATHER. THEREFORE...THE 
WARNING WILL BE ALLOWED TO EXPIRE AT 215 PM.

LAT...LON 3617 7864 3616 7851 3606 7854 3602 7855
      3608 7869 3617 7869 3618 7865
TIME...MOT...LOC 1811Z 189DEG 17KT 3607 7863 

$$

VINCENT

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 15, 1:25 PM EDT, 3 minutes earlier.

Area forecast discussion, May 15, 1:25 PM EDT, 3 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
125 PM EDT THU MAY 15 2014

.SYNOPSIS...A STRONG AND SLOW MOVING COLD FRONT WILL TRACK EASTWARD
ACROSS THE REGION TODAY THROUGH FRIDAY. WEAK BUT COOL HIGH PRESSURE
WILL BUILD IN FOR THE WEEKEND.

&&

.NEAR TERM /THROUGH FRIDAY/...
AS OF 1029 AM THURSDAY...

PRIMARY CONCERNS REMAIN HEAVY RAIN TOTALS WITH TRAINING CONVECTION
AS WELL AS A RISK OF ISOLATED TORNADOES.

DEEP TROUGH OVER THE CENTRAL US MOVING SLOWLY EASTWARD. EMBEDDED
WAVE ON WV IMAGERY EXITING NORTHERN GA MAY PROVIDE ADDITIONAL
ENHANCEMENT TO ACTIVITY INTO THE AFTERNOON AS IT MOVES NNW ACROSS
THE AREA. COLD FRONT IS NEAR THE TN/NC BORDER... AND PW NEAR 2" ARE
MOVING INTO THE REGION IN ADVANCE OF IT IN DEEP SOUTH TO
SOUTHEASTERLY FLOW. GIVEN THE MEAN FLOW NEARLY PARALLEL TO THE
FRONT... SLOW PROGRESSION AND TRAINING OF STORMS WILL CONTINUE TO
PROVIDE THE THREAT OF FLASH FLOODING... MAINLY FOR URBAN AREAS.
LIMITING FACTORS FOR SEVERE WEATHER OVER THE PIEDMONT CONTINUE TO BE
LACK OF INSTABILITY AND WEAK MID LEVEL LAPSE RATES... THOUGH
SUNSHINE THIS MORNING OVER THE COASTAL PLAIN HAS ALLOWED SBCAPE TO
PUSH NEAR 1000 J/KG. MODELS CONTINUE TO INDICATE THE DEVELOPMENT OF
A SECONDARY LOW PRESSURE AREA OVER THE CAROLINAS THIS AFTERNOON...
WHICH WILL SUPPORT THE RISK OF AN ISOLATED TORNADO.

CURRENT TEMPS IN THE MID 60S IN THE WEST WITH THE CLOUD COVER AND
RAIN/STORMS...  AND PUSHING 80 IN THE COASTAL PLAIN... THOUGH CLOUDS
ARE QUICKLY OVERSPREADING THE ENTIRE AREA. WILL ACCORDINGLY TRIM
HIGHS SLIGHTLY IN THE WEST TO LOW TO MID 70S AND KEEP WITH LOW 80S
IN THE EAST. -SEC

WILL TREND POPS OUT OF THE ERN CWA FRI MORNING AS THE FRONT SHIFTS
EASTWARD OUT OF THE CWA... BRINGING INCREASING SUNSHINE AND MAINLY
WEST WINDS... AS MODELS SHOW GRADUAL W-E CLEARING BY EARLY
AFTERNOON. THICKNESSES DROP A BIT BUT NOT DRAMATICALLY AS THE MID
LEVEL TROUGH AXIS IS STILL TO OUR WEST... SUPPORTING TEMPS JUST
SLIGHTLY BELOW NORMAL.

HIGH RANGE OF LOWS TODAY DUE TO THE FRONTAL PASSAGE... AND WILL HAVE
LOWS TONIGHT RANGING FROM LOW-MID 50S WEST TO MID-UPPER 60S EAST.
HIGHS FRI 72-77. -GIH

&&

.SHORT TERM /FRIDAY NIGHT/...
AS OF 300 AM THURSDAY...

MOSTLY CLEAR AND COOL FRIDAY NIGHT IN THE WAKE OF THE COLD FRONT AS
THICKNESSES APPROACH A RELATIVE MIN FOR THE PERIOD AT 1340M.
GUIDANCE MOSTLY INDICATES LOWS IN THE MID 40S WEST TO LOWER 50S
EAST.  HOWEVER...WITH CYCLONIC FLOW STILL IN PLACE ALOFT AND JET
ENERGY MOVING INTO THE BASE OF THE TROUGH....THERE IS THE POTENTIAL
FOR CIRRUS LATE FRIDAY NIGHT...WHICH COULD IMPACT LOWS SLIGHTLY
ACROSS THE WESTERN PIEDMONT.  WONT GO AS LOW AS THE COOLEST
GUIDANCE...47-53.

&&

.LONG TERM /SATURDAY THROUGH THURSDAY/...
AS OF 125 PM THURSDAY...

SATURDAY THROUGH SUNDAY NIGHT: A SHORTWAVE ROUNDING THE BASE OF THE
LONGWAVE TROUGH WILL MOVE ACROSS THE CAROLINAS ON SATURDAY. MODELS
DEPICT A DECREASING TREND IN THE MOISTURE AS THE WAVE MOVES ACROSS
OUR CWA...SO FOR NOW WILL KEEP THE FORECAST FOR SATURDAY DRY.
HOWEVER BY SUNDAY...ANOTHER SHORTWAVE WILL CROSS OUR AREA LATER IN
THE DAY. THE MOISTURE WITH THIS ONE LOOKS A LITTLE BETTER AND
FARTHER NORTH...SO WILL INCLUDE A SLIGHT CHANCE POP ACROSS OUR FAR
S/SE ZONES FOR THE AFTERNOON AND EVENING. TEMPS WILL RUN A FEW
DEGREES BELOW NORMAL DURING THE WEEKEND UNDER THE INFLUENCE OF THE
TROUGH AND ENHANCED CLOUD COVER ASSOC WITH THE AFOREMENTIONED SHORT
WAVES. HIGHS IN THE MID-UPR 70S AND LOWS IN THE LOWER 50S.

MONDAY THROUGH THURSDAY...A LONGWAVE RIDGE WILL BUILD ACROSS THE
MISSISSIPPI RIVER VALLEY...DEEP SOUTH...AND TN VALLEY. OUR AREA WILL
REMAIN UNDER NW FLOW ON THE EAST SIDE OF THIS RIDGE. WHILE MOST OF
THIS PERIOD SHOULD BE DRY ACROSS OUR AREA WITH THE RIDGE BUILDING
EAST...WE'LL HAVE TO WATCH THE WEAK DISTURBANCES AND RESULTING
CONVECTIVE COMPLEXES THAT WILL LIKELY BE MOVING ACROSS THE TOP OF
THE RIDGE AND DOWN THE EAST SIDE.  ONE SUCH WAVE IS PROGGED TO MOVE
ACROSS THE MID ATLANTIC REGION ON WEDNESDAY...AND MAY BRING A SLIGHT
CHANCE FOR SHOWERS/TSTMS ACROSS OUR N/NE ZONES.  TEMPS DURING THE
FIRST HALF OF THE WEEK WILL REMAIN NEAR OR SLIGHTLY BELOW NORMAL
GIVEN THE N/NW FLOW...BUT WILL WARM BACK TO OR ABOVE NORMAL BY
MIDWEEK AS THE SFC HIGH MOVES TO OUR S AND E AND THE MIDLEVEL RIDGE
BUILDS TOWARD THE CAROLINAS.

&&

.AVIATION /12Z THURSDAY THROUGH MONDAY/...
AS OF 705 AM WEDNESDAY...

MVFR CONDITIONS AT INT/GSO WILL SPREAD EASTWARD THIS MORNING... AND
AVIATION CONDITIONS WILL SLOWLY BUT STEADILY DETERIORATE WEST TO
EAST TODAY... DUE TO THE INCREASING LOW LEVEL SOUTHERLY FLOW
BRINGING GREATER LOW LEVEL MOISTURE INTO THE AREA. SCATTERED
SHOWERS/STORMS WILL NEAR RDU/FAY NEAR OR SOON AFTER NOON BEFORE
BECOMING MORE STEADY MODERATE TO HEAVY SHOWERS AND STORMS AFTER 19Z.
AT RWI... WHERE THE STEADY SHOWERS/STORMS WON'T ARRIVE UNTIL CLOSE
TO 21Z... MORNING VFR CIGS ARE EXPECTED... DROPPING BACK BELOW MVFR
AS PRECIP ARRIVES LATE TODAY. A FEW STORMS TODAY COULD BECOME
STRONG. EXPECT STRONG WINDS MOSTLY FROM THE SOUTH OR SSE SUSTAINED
AT 13-18 KTS GUSTING AS HIGH AS 20-25 KTS FOR MUCH OF TODAY AT ALL
SITES. THE FRONT IS EXPECTED TO PASS THROUGH INT/GSO LATE IN THE TAF
FORECAST (BETWEEN 03Z AND 06Z) AND AT RDU (08Z-11Z)... WITH AN END
TO THE HEAVY PRECIP AND ABRUPT WIND SHIFT TO WEST (ALTHOUGH STRONG
WINDS FROM THE SOUTH OR SW WILL PERSIST ABOVE 4 000 FT)... AND
RISING CIGS TO VFR.

LOOKING BEYOND 12Z FRI MORNING... ADVERSE AVIATION CONDITIONS
(MVFR/IFR CIGS/VSBYS) WILL PERSIST UNTIL FRONTAL PASSAGE... MOST
LIKELY TO OCCUR AT FAY NEAR 12Z... AND AT RWI NEAR 14Z. THESE WILL
BE FOLLOWED BY IMPROVING CONDITIONS WITH CIGS/VSBYS JUMPING UP TO
VFR AND SURFACE WINDS BECOMING FROM THE WEST OR NW BEHIND THE FRONT.
VFR CONDITIONS ARE LIKELY FROM FRI AFTERNOON THROUGH MON... AS WEAK
HIGH PRESSURE BUILDS INTO THE AREA... ALTHOUGH PASSING DISTURBANCES
ALOFT WILL BRING PERIODS OF VFR CLOUDS OVER THE WEEKEND. -GIH

&&

.RAH WATCHES/WARNINGS/ADVISORIES...

FLASH FLOOD WATCH FROM 9 AM EDT THIS MORNING THROUGH THIS EVENING
FOR NCZ007-021>023-038-039-073-074-083.

&&

SYNOPSIS...HARTFIELD
NEAR TERM...SEC/HARTFIELD
SHORT TERM...SMITH
LONG TERM...NP
AVIATION...HARTFIELD
Hazardous weather outlook, May 15, 12:05 PM EDT, 1 hour 23 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
1205 PM EDT THU MAY 15 2014

NCZ008>011-024>028-040>043-075>078-085-086-088-089-161615-
GRANVILLE-VANCE-WARREN-HALIFAX-ORANGE-DURHAM-FRANKLIN-NASH-EDGECOMBE-
CHATHAM-WAKE-JOHNSTON-WILSON-MOORE-LEE-HARNETT-WAYNE-SCOTLAND-HOKE-
CUMBERLAND-SAMPSON-
1205 PM EDT THU MAY 15 2014

...SEVERE THUNDERSTORM WATCH 157 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

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

   SEVERE THUNDERSTORM WATCH.

NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA
TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST
INTO THE AREA. A FEW STORMS COULD BECOME SEVERE...WITH A PRIMARY
THREAT OF DAMAGING WINDS OR AN ISOLATED TORNADO. THE THREAT FOR
SEVERE WEATHER WILL BE GREATEST BETWEEN NOON AND 8 PM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NCZ084-161615-
RICHMOND-
1205 PM EDT THU MAY 15 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA
TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST
INTO THE AREA. A FEW STORMS COULD BECOME SEVERE...WITH A PRIMARY
THREAT OF DAMAGING WINDS OR AN ISOLATED TORNADO. THE THREAT FOR
SEVERE WEATHER WILL BE GREATEST BETWEEN NOON AND 8 PM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NCZ021-022-038-039-073-074-083-161615-
FORSYTH-GUILFORD-DAVIDSON-RANDOLPH-STANLY-MONTGOMERY-ANSON-
1205 PM EDT THU MAY 15 2014

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON 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.

NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA
TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST
INTO THE AREA. AN ISOLATED STORM COULD BECOME SEVERE...WITH A
PRIMARY THREAT OF DAMAGING WINDS OR A TORNADO. THE THREAT FOR
SEVERE WEATHER WILL BE GREATEST BETWEEN 10 AM AND 6 PM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

NCZ007-023-161615-
PERSON-ALAMANCE-
1205 PM EDT THU MAY 15 2014

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...
...SEVERE THUNDERSTORM WATCH 157 IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THIS AFTERNOON 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.
   SEVERE THUNDERSTORM WATCH.

NUMEROUS THUNDERSTORMS ARE EXPECTED ACROSS CENTRAL NORTH CAROLINA
TODAY AS A SURFACE LOW DEVELOPS ALONG A COLD FRONT MOVING EAST
INTO THE AREA. AN ISOLATED STORM COULD BECOME SEVERE...WITH A
PRIMARY THREAT OF DAMAGING WINDS OR A TORNADO. THE THREAT FOR
SEVERE WEATHER WILL BE GREATEST BETWEEN 10 AM AND 6 PM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

In the hours before

Special weather statement, May 15, 11:31 AM EDT, 1 hour 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1131 AM EDT THU MAY 15 2014

NCZ088-151615-
CUMBERLAND-
1131 AM EDT THU MAY 15 2014

...STRONG THUNDERSTORM WILL AFFECT WESTERN CUMBERLAND COUNTY UNTIL
1215 PM EDT...

AT 1130 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR ST. PAULS...OR 12 MILES SOUTH OF
FAYETTEVILLE...MOVING NORTH AT 30 MPH.

WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
FAYETTEVILLE...FORT BRAGG...POPE AFB...HOPE MILLS...SPRING LAKE...
EASTOVER...BONNIE DOONE AND VANDER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
45 MPH ARE CAPABLE OF KNOCKING DOWN TREE LIMBS AND BLOWING AROUND
TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR
OBJECTS.

LOCALLY HEAVY RAIN WILL QUICKLY REDUCE VISIBILITY AND RESULT IN
PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.

DOPPLER RADAR HAS INDICATED WEAK ROTATION WITH THIS STORM. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO BE
ISSUED.

&&

LAT...LON 3490 7894 3495 7904 3501 7906 3504 7909
      3516 7911 3519 7909 3523 7888 3526 7883
      3526 7879 3492 7879 3485 7886 3483 7890
TIME...MOT...LOC 1530Z 181DEG 25KT 3489 7896

VINCENT
Special weather statement, May 15, 11:47 AM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1147 AM EDT THU MAY 15 2014

NCZ040-041-076-151630-
WAKE-LEE-CHATHAM-
1147 AM EDT THU MAY 15 2014

...STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL WAKE...NORTHEASTERN
LEE...AND SOUTHEASTERN CHATHAM COUNTY UNTIL 1230 PM EDT...

AT 1145 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR SANFORD...MOVING NORTH AT 20 MPH.

WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SANFORD...PITTSBORO...APEX...BROADWAY...SEAFORTH BOAT DOCK...SHEARON
HARRIS RESERVOIR...JORDAN LAKE STATE REC AREA...MONCURE...HARRIS LAKE
BOAT LAUNCH...NEW HILL...CROSSWINDS CAMPGROUND...CROSSWINDS BOATING
CENTER AND LAKE JORDAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
45 MPH ARE CAPABLE OF KNOCKING DOWN TREE LIMBS AND BLOWING AROUND
TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR
OBJECTS.

LOCALLY HEAVY RAIN WILL QUICKLY REDUCE VISIBILITY AND RESULT IN
PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.

&&

LAT...LON 3573 7884 3558 7892 3539 7910 3538 7914
      3558 7915 3575 7917
TIME...MOT...LOC 1545Z 184DEG 19KT 3546 7907

VINCENT
Special weather statement, May 15, 12:26 PM EDT, 1 hour 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1226 PM EDT THU MAY 15 2014

NCZ040-041-151700-
WAKE-CHATHAM-
1226 PM EDT THU MAY 15 2014

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL WAKE AND
NORTHEASTERN CHATHAM COUNTIES UNTIL 100 PM EDT...

AT 1224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 11 MILES SOUTHEAST OF PITTSBORO...MOVING NORTH
AT 20 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE... CARY...RDU INTERNATIONAL...APEX...
MORRISVILLE...CROSSWINDS CAMPGROUND...CROSSWINDS BOATING CENTER...
LAKE JORDAN...CARPENTER...NEW HILL...JORDAN LAKE STATE REC AREA AND
WILLIAM B UMSTEAD STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
50 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.

LOCALLY HEAVY RAIN WILL QUICKLY REDUCE VISIBILITY AND RESULT IN
PONDING OF WATER ON ROADWAYS. DRIVERS ARE URGED TO SLOW DOWN AND USE
EXTRA CAUTION TO AVOID HYDROPLANING.

DOPPLER RADAR HAS INDICATED WEAK ROTATION WITH THIS STORM. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO BE
ISSUED.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3587 7876 3564 7887 3564 7902 3586 7904
TIME...MOT...LOC 1624Z 201DEG 19KT 3564 7900

VINCENT
Special weather statement, May 15, 12:42 PM EDT, 46 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1242 PM EDT THU MAY 15 2014

NCZ041-151715-
WAKE-
1242 PM EDT THU MAY 15 2014

...STRONG THUNDERSTORM WILL AFFECT SOUTHERN AND CENTRAL WAKE
COUNTY UNTIL 115 PM EDT...

AT 1240 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A THUNDERSTORM OVER FUQUAY-VARINA...OR 12 MILES SOUTH OF CARY...
MOVING NORTHEAST AT 25 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RALEIGH...CARY...GARNER...FUQUAY-VARINA...RDU INTERNATIONAL...APEX...
HOLLY SPRINGS...MORRISVILLE...LAKE WHEELER...NEW HILL...RESEARCH
TRIANGLE...SHEARON HARRIS RESERVOIR AND WILLIAM B UMSTEAD STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
50 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.

DOPPLER RADAR HAS INDICATED SOME ROTATION IN THIS STORM. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO
BE ISSUED.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3554 7877 3559 7893 3587 7886 3587 7856
TIME...MOT...LOC 1640Z 202DEG 23KT 3560 7883

VINCENT
Special weather statement, May 15, 12:48 PM EDT, 40 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1248 PM EDT THU MAY 15 2014

NCZ025-151715-
DURHAM-
1248 PM EDT THU MAY 15 2014

...STRONG THUNDERSTORM WILL AFFECT SOUTHERN DURHAM COUNTY UNTIL 115
PM EDT...

AT 1247 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR RDU INTERNATIONAL...OR 7 MILES NORTHWEST
OF CARY...MOVING NORTH AT 20 MPH.

WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
DURHAM...BETHESDA...PARKWOOD...GORMAN...RESEARCH TRIANGLE...ENO RIVER
STATE PARK...FALLS LAKE AND LAKE JORDAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
45 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.

DOPPLER RADAR HAS INDICATED SOME ROTATION IN THIS STORM. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO
BE ISSUED.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3607 7879 3607 7875 3603 7875 3602 7874
      3603 7872 3592 7876 3593 7880 3587 7883
      3586 7888 3587 7899 3609 7896 3609 7881
TIME...MOT...LOC 1647Z 195DEG 18KT 3586 7890

VINCENT
Special weather statement, May 15, 1:24 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
124 PM EDT THU MAY 15 2014

NCZ041-151745-
WAKE-
124 PM EDT THU MAY 15 2014

...STRONG THUNDERSTORM WILL AFFECT CENTRAL AND NORTHERN WAKE COUNTY
UNTIL 145 PM EDT...

AT 122 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
THUNDERSTORM OVER RALEIGH...MOVING NORTHEAST AT 20 MPH.

BRIEF TORRENTIAL RAINFALL AND WIND GUSTS UP TO 45 MPH WILL BE
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RALEIGH...CARY...WAKE FOREST...RDU INTERNATIONAL...WILLIAM B UMSTEAD
STATE PARK...PURNELL...FALLS LAKE AND FALLS LAKE BOAT RAMP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER IN A NEARBY BUILDING OR VEHICLE. WIND GUSTS AS HIGH AS
45 MPH ARE CAPABLE OF KNOCKING DOWN SMALL OR WEAKENED TREES AND
BLOWING AROUND TRASH CANS...POTTED PLANTS...LAWN FURNITURE AND OTHER
LIGHT OUTDOOR OBJECTS.

DOPPLER RADAR HAS INDICATED SOME ROTATION IN THIS STORM. IF THE
STORM INTENSIFIES AND ROTATION STRENGTHENS...A WARNING MAY NEED TO
BE ISSUED.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT
THURSDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3600 7847 3598 7846 3576 7868 3581 7878
      3585 7880 3592 7876 3594 7873 3597 7871
      3607 7868
TIME...MOT...LOC 1722Z 203DEG 19KT 3583 7870

VINCENT

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 3:55 AM EDTFlash Flood WatchRAHAlamance, Anson, Chatham, Cumberland, Davidson, Durham and 22 more25 hr
May 15, 8:47 AM EDTSpecial Weather StatementRAHForsyth58 min
May 15, 9:21 AM EDTSpecial Weather StatementRAHDavidson, Stanly39 min
May 15, 9:55 AM EDTSpecial Weather StatementRAHAnson, Montgomery, Stanly20 min
May 15, 9:57 AM EDTSpecial Weather StatementRAHGuilford33 min
May 15, 10:09 AM EDTSpecial Weather StatementRAHRandolph51 min
May 15, 10:38 AM EDTSpecial Weather StatementRAHRandolph37 min
May 15, 10:42 AM EDTAreal Flood AdvisoryRAHAnson, Davidson, Forsyth, Guilford, Montgomery, Moore and 3 more5 hr
May 15, 10:44 AM EDTSpecial Weather StatementRAHMontgomery, Richmond46 min
May 15, 11:14 AM EDTSpecial Weather StatementRAHAlamance46 min
May 15, 11:23 AM EDTSpecial Weather StatementRAHChatham37 min
May 15, 11:31 AM EDTSpecial Weather StatementRAHCumberland44 min
May 15, 11:47 AM EDTSpecial Weather StatementRAHLee43 min
May 15, 12:26 PM EDTSpecial Weather StatementRAHWake34 min
May 15, 12:42 PM EDTSpecial Weather StatementRAHWake33 min
May 15, 12:48 PM EDTSpecial Weather StatementRAHDurham27 min
May 15, 1:24 PM EDTSpecial Weather StatementRAHWake21 min
May 15, 1:51 PM EDTAreal Flood AdvisoryRAHDurham, Orange, Wake114 min
May 15, 2:26 PM EDTSpecial Weather StatementRAHFranklin64 min
May 15, 3:19 PM EDTFlash Flood WarningRAHWake3 hr
May 15, 3:35 PM EDTSpecial Weather StatementRAHWayne25 min
May 15, 5:39 PM EDTSpecial Weather StatementRAHEdgecombe51 min
May 15, 5:54 PM EDTSevere Thunderstorm WarningRAHChatham, Durham, Granville, Orange66 min
May 15, 6:06 PM EDTTornado WarningRAHDurham24 min
May 15, 6:35 PM EDTFlash Flood WarningRAHOrange3 hr
May 15, 6:49 PM EDTSevere Thunderstorm WarningRAHGranville, Person56 min
May 15, 6:54 PM EDTTornado WarningRAHGranville, Person36 min
May 15, 7:06 PM EDTSpecial Weather StatementRAHDurham54 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2014Every severe thunderstorm warning in 2014

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.