Alert archive / Nebraska / Winter Storm Warnings in 2007

Winter Storm Warning 2, NWS North Platte, NE

April 12, 2007Chase County, Hayes County, Perkins County, Nebraska

NWS North Platte, NE issued this winter storm warning at Apr 12, 2007, 2:24 AM MDT for Chase County, Hayes County, Perkins County, Nebraska. It took effect at Apr 12, 2007, 12:12 PM MDT. It was in force for 22 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 12, 2007, 2:24 AM MDT (08:24 UTC)
In effect from
Apr 12, 2007, 12:12 PM MDT
Expired
Apr 13, 2007, 10:06 AM MDT
In force
22 hr
Issued by
NWS North Platte, NE

Counties Chase County, NE, Hayes County, NE, Perkins County, NE

The radar

The Goodland radar (KGLD), 142 km from the middle of the area, began a volume at 08:30 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 8.4 hours before the alert went out and 92 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, N. Platte/Lee Bi, NE at 00:00Z on 2007-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2007-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
8 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1237 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WWUS43 KLBF 120824
WSWLBF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
324 AM CDT THU APR 12 2007

NEZ058-069-122030-
/O.UPG.KLBF.WS.A.0004.070413T0600Z-070414T0000Z/
/O.NEW.KLBF.WS.W.0002.070413T0600Z-070414T0000Z/
PERKINS-CHASE-
INCLUDING THE CITIES OF...GRANT...IMPERIAL
224 AM MDT THU APR 12 2007

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
MDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
MDT FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

SNOW IS EXPECTED TO DEVELOP OVERNIGHT TONIGHT ACROSS FAR
SOUTHWESTERN NEBRASKA. SNOWFALL RATES OF OVER AN INCH PER HOUR ARE
POSSIBLE TOWARD FRIDAY MORNING. BY FRIDAY EVENING...6 TO 8 INCHES
OF SNOW ACCUMULATION IS LIKELY ACROSS PERKINS AND CHASE COUNTIES.
IN ADDITION TO HEAVY SNOW...EASTERLY WINDS OF 20 TO 30 MPH...WILL
PRODUCE BLOWING SNOW AND REDUCED VISIBILITIES...MAKING TRAVEL
HAZARDOUS. 

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

NEZ070-071-122030-
/O.CON.KLBF.WS.A.0004.070413T0600Z-070414T0000Z/
HAYES-FRONTIER-
INCLUDING THE CITIES OF...HAYES CENTER...CURTIS...EUSTIS
324 AM CDT THU APR 12 2007

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY EVENING...

A WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY EVENING. 

SNOW...POSSIBLY HEAVY AT TIMES...IS EXPECTED TO DEVELOP ACROSS
HAYES AND FRONTIER COUNTIES OVERNIGHT TONIGHT...PERSISTING INTO
MIDDAY FRIDAY. BY FRIDAY EVENING THE POTENTIAL EXISTS FOR UP TO 6
INCHES OF SNOW ACCUMULATION. IN ADDITION TO SNOW...EASTERLY WINDS
OF 20 TO 30 MPH...WILL PRODUCE BLOWING SNOW...REDUCING
VISIBILITIES AND MAKING TRAVEL POTENTIALLY HAZARDOUS. 

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

$$

BUTTLER
4 follow-up statements
000 
WWUS43 KLBF 121812
WSWLBF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
111 PM CDT THU APR 12 2007

NEZ070-130215-
/O.UPG.KLBF.WS.A.0004.070413T0600Z-070414T0000Z/
/O.EXB.KLBF.WS.W.0002.070413T0600Z-070414T0600Z/
HAYES-
INCLUDING THE CITY OF...HAYES CENTER
111 PM CDT THU APR 12 2007

...WINTER STORM WARNING IN EFFECT FROM 1 AM FRIDAY TO 1 AM CDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 1 AM FRIDAY TO 1 AM CDT
SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A STRONG SPRING STORM SYSTEM IS EXPECTED TO CROSS THE PLAINS
TONIGHT THROUGH FRIDAY. RAIN CHANGING TO SNOW IS LIKELY IN HAYES
COUNTIES OF SOUTHWEST NEBRASKA THIS EVENING. THE RAIN WILL CHANGE
TO SNOW BY MIDNIGHT AND MAY BE HEAVY AT TIMES WITH TOTAL
ACCUMULATIONS OF AROUND EIGHT INCHES. LOCALIZED HEAVIER AMOUNTS
ARE POSSIBLE. WIND INCREASING TO 10 TO 20 MPH MAY CAUSE SOME
BLOWING AND DRIFTING SNOW.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

NEZ058-069-130215-
/O.EXT.KLBF.WS.W.0002.070413T0600Z-070414T0600Z/
PERKINS-CHASE-
INCLUDING THE CITIES OF...GRANT...IMPERIAL
1211 PM MDT THU APR 12 2007

...WINTER STORM WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
MIDNIGHT MDT FRIDAY NIGHT...

THE WINTER STORM WARNING IS NOW IN EFFECT FROM MIDNIGHT TONIGHT
TO MIDNIGHT MDT FRIDAY NIGHT. 

A STRONG STORM SYSTEM IS EXPECTED TO CROSS THE CENTRAL PLAINS. SNOWFALL
RATES OF OVER AN INCH PER HOUR ARE POSSIBLE TOWARD FRIDAY MORNING.
BY FRIDAY EVENING...7 TO 9 INCHES OF SNOW ACCUMULATION IS LIKELY
ACROSS PERKINS AND CHASE COUNTIES. IN ADDITION TO HEAVY SNOW...10
TO 20 MPH WIND MAY CAUSE SOME BLOWING AND DRIFTING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

NEZ071-130215-
/O.UPG.KLBF.WS.A.0004.070413T0600Z-070414T0000Z/
/O.NEW.KLBF.SN.Y.0003.070413T0600Z-070414T0600Z/
FRONTIER-
INCLUDING THE CITIES OF...CURTIS...EUSTIS
111 PM CDT THU APR 12 2007

...SNOW ADVISORY IN EFFECT FROM 1 AM FRIDAY TO 1 AM CDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT FROM 1 AM FRIDAY TO 1 AM CDT
SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

A STRONG STORM SYSTEM WILL BRING SNOW TO SOUTHWEST NEBRASKA
TONIGHT WITH THE SNOW CONTINUING THROUGH FRIDAY EVENING. RAIN WILL
START THIS EVENING AND CHANGE TO SNOW BY LATE TONIGHT. SNOWFALL
TOTALS OF FOUR TO SIX INCHES CAN BE EXPECTED BY LATE FRIDAY
EVENING. SOME DRIFTING IS ALSO POSSIBLE WITH 10 TO 20 MPH WIND.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

NEZ022-035-056-057-059-130215-
/O.NEW.KLBF.SN.Y.0003.070413T0600Z-070414T0600Z/
GARDEN-ARTHUR-DEUEL-KEITH-LINCOLN-
INCLUDING THE CITIES OF...OSHKOSH...ARTHUR...CHAPPELL...
BIG SPRINGS...OGALLALA...NORTH PLATTE
111 PM CDT THU APR 12 2007 /1211 PM MDT THU APR 12 2007/

...SNOW ADVISORY IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/ FRIDAY TO
1 AM CDT /MIDNIGHT MDT/ SATURDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/ FRIDAY
TO 1 AM CDT /MIDNIGHT MDT/ SATURDAY. 

A STRONG STORM SYSTEM WILL BRING SNOW TO SOUTHWEST NEBRASKA
TONIGHT WITH THE SNOW CONTINUING THROUGH FRIDAY EVENING. RAIN WILL
BEGIN THIS EVENING AND CHANGE TO SNOW BY LATE EVENING. SNOWFALL
TOTALS OF THREE TO FIVE INCHES CAN BE EXPECTED BY LATE FRIDAY
EVENING. SOME DRIFTING IS ALSO POSSIBLE IN 10 TO 20 MPH WIND.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$
SPRINGER
000 
WWUS43 KLBF 130130 AAA
WSWLBF

URGENT - WINTER WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
830 PM CDT THU APR 12 2007

NEZ058-069-070-131200-
/O.CON.KLBF.WS.W.0002.070413T0600Z-070414T0600Z/
PERKINS-CHASE-HAYES-
INCLUDING THE CITIES OF...GRANT...IMPERIAL...HAYES CENTER
830 PM CDT THU APR 12 2007 /730 PM MDT THU APR 12 2007/

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM CDT /MIDNIGHT
MDT/ FRIDAY TO 1 AM CDT /MIDNIGHT MDT/ SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM CDT /MIDNIGHT
MDT/ FRIDAY TO 1 AM CDT /MIDNIGHT MDT/ SATURDAY. 

A STRONG STORM SYSTEM WILL MOVE ACROSS THE CENTRAL PLAINS THROUGH
FRIDAY EVENING. SNOW IS EXPECTED TO BECOME MODERATE TO AT TIMES HEAVY
DURING THE EARLY MORNING HOURS FRIDAY. SNOW IS EXPECTED TO CONTINUE
INTO FRIDAY EVENING WITH 6 TO 8 INCHES OF SNOW ACCUMULATION LIKELY
ACROSS PERKINS...CHASE...AND HAYES COUNTIES. IN ADDITION TO HEAVY
SNOW...10 TO 20 MPH WINDS MAY CAUSE SOME BLOWING AND DRIFTING.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

NEZ022-035-056-057-059-071-131200-
/O.CON.KLBF.SN.Y.0003.070413T0600Z-070414T0600Z/
GARDEN-ARTHUR-DEUEL-KEITH-LINCOLN-FRONTIER-
INCLUDING THE CITIES OF...OSHKOSH...ARTHUR...CHAPPELL...
BIG SPRINGS...OGALLALA...NORTH PLATTE...CURTIS...EUSTIS
830 PM CDT THU APR 12 2007 /730 PM MDT THU APR 12 2007/

...SNOW ADVISORY REMAINS IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/
FRIDAY TO 1 AM CDT /MIDNIGHT MDT/ SATURDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 1 AM CDT /MIDNIGHT MDT/
FRIDAY TO 1 AM CDT /MIDNIGHT MDT/ SATURDAY. 

A STRONG STORM SYSTEM IS EXPECTED TO BRING SNOW TO THE
SOUTHEASTERN PANHANDLE AND PORTIONS OF WEST CENTRAL AND SOUTHWEST
NEBRASKA. RAIN WILL MIX WITH AND CHANGE TO SNOW DURING THE EARLY
MORNING HOURS FRIDAY WITH SNOW POSSIBLE INTO FRIDAY EVENING.
SNOWFALL TOTALS OF TWO TO FOUR INCHES ARE POSSIBLE NORTH OF
INTERSTATE 80 WITH HIGHER AMOUNTS OF THREE TO SIX INCHES TO THE
SOUTH. SOME DRIFTING IS ALSO POSSIBLE WITH 10 TO 20 MPH WINDS.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

KAR
000 
WWUS43 KLBF 130824
WSWLBF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
324 AM CDT FRI APR 13 2007

NEZ058-069-070-131700-
/O.CON.KLBF.WS.W.0002.000000T0000Z-070414T0600Z/
PERKINS-CHASE-HAYES-
INCLUDING THE CITIES OF...GRANT...IMPERIAL...HAYES CENTER
324 AM CDT FRI APR 13 2007 /224 AM MDT FRI APR 13 2007/

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 AM CDT
/MIDNIGHT MDT/ SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 AM CDT /MIDNIGHT
MDT/ SATURDAY. 

A STRONG STORM SYSTEM WILL MOVE ACROSS THE CENTRAL PLAINS TODAY.
PERIODS OF MODERATE TO HEAVY SNOWFALL IS EXPECTED TODAY WITH
ACCUMULATIONS BY EVENING TOTALING . SNOW IS EXPECTED TO TAPER OFF
DURING THE LATE AFTERNOON AND EVENING HOURS. BY EVENING 3 TO 6
INCHES OF SNOW IS LIKELY WITH LOCALLY HIGHER AMOUNTS POSSIBLE OVER
FAR SOUTHERN CHASE AND HAYES COUNTIES. IN ADDITION TO SNOW...10 TO 20
MPH WINDS MAY CAUSE SOME BLOWING SNOW.


$$

NEZ022-035-056-057-059-071-131700-
/O.CON.KLBF.SN.Y.0003.000000T0000Z-070414T0600Z/
GARDEN-ARTHUR-DEUEL-KEITH-LINCOLN-FRONTIER-
INCLUDING THE CITIES OF...OSHKOSH...ARTHUR...CHAPPELL...
BIG SPRINGS...OGALLALA...NORTH PLATTE...CURTIS...EUSTIS
324 AM CDT FRI APR 13 2007 /224 AM MDT FRI APR 13 2007/

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT /MIDNIGHT MDT/
SATURDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT /MIDNIGHT MDT/
SATURDAY. 

LIGHT TO MODERATE SNOW IS EXPECTED ACROSS THE SOUTHEASTERN
PANHANDLE AND PORTIONS OF WESTERN AND SOUTHWESTERN NEBRASKA TODAY.
SNOW IS EXPECTED TO TAPER OFF EARLY THIS EVENING. BY
EVENING...ACCUMULATIONS OF 1 TO 4 INCHES IS POSSIBLE...WITH THE
HEAVIEST AMOUNTS SOUTH OF HIGHWAY 23 FROM WALLACE TO EUSTIS.

$$

CLB
000 
WWUS43 KLBF 131606
WSWLBF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1106 AM CDT FRI APR 13 2007

NEZ058-069-070-140015-
/O.CAN.KLBF.WS.W.0002.000000T0000Z-070414T0600Z/
/O.EXA.KLBF.SN.Y.0003.000000T0000Z-070414T0600Z/
PERKINS-CHASE-HAYES-
INCLUDING THE CITIES OF...GRANT...IMPERIAL...HAYES CENTER
1106 AM CDT FRI APR 13 2007 /1006 AM MDT FRI APR 13 2007/

...SNOW ADVISORY IN EFFECT UNTIL 1 AM CDT /MIDNIGHT MDT/
SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A SNOW
ADVISORY...WHICH IS IN EFFECT UNTIL 1 AM CDT /MIDNIGHT MDT/
SATURDAY. THE WINTER STORM WARNING HAS BEEN CANCELED. 

LIGHT SNOW IS EXPECTED ACROSS THE SOUTHWEST PORTIONS OF WESTERN AND
SOUTHWESTERN NEBRASKA THIS AFTERNOON. SNOW IS EXPECTED TO TAPER
OFF EARLY THIS EVENING. BY EVENING...ACCUMULATIONS OF 1 TO 5 INCHES
IS POSSIBLE SOUTH OF HIGHWAY 23 INTO CHASE AND HAYES COUNTIES.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

NEZ022-035-056-057-131715-
/O.CAN.KLBF.SN.Y.0003.000000T0000Z-070414T0600Z/
GARDEN-ARTHUR-DEUEL-KEITH-
INCLUDING THE CITIES OF...OSHKOSH...ARTHUR...CHAPPELL...
BIG SPRINGS...OGALLALA
1006 AM MDT FRI APR 13 2007

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELED THE
SNOW ADVISORY. 

THE STORM SYSTEM DEVELOPING THROUGH THE PLAINS TODAY WILL FOCUS
MODERATE TO HEAVY SNOWFALL FURTHER SOUTH THAN INITIALLY EXPECTED.
A MIXTURE OF RAIN AND SNOW IS POSSIBLE THIS AFTERNOON AS WARM AIR
SPREADS INTO NORTHWEST NEBRASKA. THEREFORE THE SNOW ADVISORY HAS
BEEN CANCELED FOR THE EASTERN PANHANDLE EAST INTO ARTHUR AND
KEITH COUNTIES. 

$$

NEZ059-071-140015-
/O.CON.KLBF.SN.Y.0003.000000T0000Z-070414T0600Z/
LINCOLN-FRONTIER-
INCLUDING THE CITIES OF...NORTH PLATTE...CURTIS...EUSTIS
1106 AM CDT FRI APR 13 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT SATURDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT SATURDAY. 

LIGHT SNOW IS EXPECTED ACROSS PORTIONS OF LINCOLN AND FRONTIER
COUNTIES. FURTHER NORTH...A RAIN AND SNOW MIXTURE WILL BE SEEN
THAT WILL REDUCE POTENTIAL SNOW ACCUMULATIONS IN NORTHERN LINCOLN
COUNTY. SNOW IS EXPECTED TO TAPER OFF EARLY THIS EVENING. BY
EVENING...ACCUMULATIONS OF 1 TO 5 INCHES IS POSSIBLE...WITH THE
HEAVIEST AMOUNTS SOUTH OF HIGHWAY 23 FROM WALLACE TO EUSTIS.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.

$$

19

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 12:11 PM MDTSnow AdvisoryLBFArthur, Chase, Deuel, Frontier, Garden, Hayes and 3 more28 hr

Nearby

Winter Storm Warnings in Nebraska, 2007Every winter storm 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; radar from the NEXRAD Level II archive.