Alert archive / Arizona / Flash Flood Warnings in 2015

Flash Flood Warning 12, NWS Flagstaff, AZ

July 15, 2015Navajo County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Jul 15, 2015, 2:29 PM MDT for Navajo County, Arizona. It was in force for 3 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: Jul 15, 2015, 2:29 PM MDT (20:29 UTC)
Expired: Jul 15, 2015, 5:30 PM MDT
In force: 3 hr
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Flood severity: None

County Navajo County, AZ

The radar

The Flagstaff radar (KFSX), 69 km from the middle of the area, began a volume at 20:29 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 flash flood 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 nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.5 hours before the alert went out and 111 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: 185 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 1620 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 111 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.

191 
WGUS55 KFGZ 152029
FFWFGZ
AZC017-152330-
/O.NEW.KFGZ.FF.W.0012.150715T2029Z-150715T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
129 PM MST WED JUL 15 2015

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL NAVAJO COUNTY IN NORTHEASTERN ARIZONA...

* UNTIL 430 PM MST
    
* AT 125 PM MST...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING 
  VERY HEAVY RAIN ACROSS THE WARNED AREA...FROM WINSLOW SOUTH ALONG 
  HIGHWAY 87 TO NEAR MILE POST 330. UP TO TWO AND A HALF INCHES OF 
  RAIN HAVE ALREADY FALLEN JUST SOUTH OF WINSLOW. FLASH FLOODING IS 
  OCCURRING FROM THE SOUTH SIDE OF WINSLOW SOUTHWARD. LAW 
  ENFORCEMENT REPORTS FLOODING ALONG ROUTE 87...AND AN UNDERPASS IS 
  FLOODED ON THE SOUTH SIDE OF WINSLOW.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  WINSLOW.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...CLEAR CREEK...
CHEVELON CANYON...JACKS CANYON...LITTLE COLORADO RIVER AND COTTONWOOD
WASH.

THIS INCLUDES THE FOLLOWING HIGHWAYS... STATE ROUTE 87 BETWEEN MILE 
MARKERS 330 TO WINSLOW. STATE ROUTE 99 BETWEEN MILE MARKERS 35 TO 
WINSLOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS
WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER
THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH
TO SWEEP VEHICLES OFF THE ROAD.

&&
 
LAT...LON 3498 11053 3489 11054 3495 11075 3504 11075

$$
JJ

1 follow-up statement

641 
WGUS75 KFGZ 152231
FFSFGZ

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
331 PM MST WED JUL 15 2015

AZC017-152330-
/O.CON.KFGZ.FF.W.0012.000000T0000Z-150715T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NAVAJO-
331 PM MST WED JUL 15 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM MST FOR
WEST CENTRAL NAVAJO COUNTY...

AT 324 PM MST...DEPARTMENT OF TRANSPORTATION REPORTED STATE ROUTE 99 
CLOSED DUE TO FLOODING AS OF 242 PM MST AND ADDITIONAL FLOODING ALONG 
INTERSTATE 40 WEST BOUND 7 MILES EAST OF STATE ROUTE 87. DIAL 511 
FOR CURRENT ROAD CONDITIONS OR CHECK WWW.AZ511.COM.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WINSLOW.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...CLEAR CREEK...
CHEVELON CANYON...JACKS CANYON...LITTLE COLORADO RIVER AND COTTONWOOD
WASH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3498 11053 3489 11054 3495 11075 3504 11075

$$

MCS

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Jul 15, 10:44 AM MDT, 3 hours 45 minutes earlier.

Area forecast discussion, Jul 15, 10:44 AM MDT, 3 hours 45 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
944 AM MST WED JUL 15 2015

.SYNOPSIS...EXPECT DECREASING STORM COVERAGE TODAY AND THURSDAY
ACROSS WESTERN ARIZONA AS DRIER AIR MOVES IN. FROM FRIDAY THROUGH
SUNDAY...LOOK FOR AN INCREASE IN THUNDERSTORM CHANCES ACROSS THE
NORTHLAND.

&&

.UPDATE...FORECASTS IN GOOD SHAPE WITH ONLY MINOR UPDATES THIS
MORNING. WITH SOUTHWEST STEERING FLOW TODAY, WE PUSHED SOME OF THE
HIGHER STORM CHANCES INTO AREAS NORTH OF THE HIGHER TERRAIN
INCLUDING THE LITTLE COLORADO RIVER VALLEY. SCATTERED
AFTERNOON/EVENING STORMS STILL EXPECTED FROM NORTH SIDE OF
MOGOLLON RIM AND WHITE MTNS NORTHEASTWARD. LATE FRIDAY INTO THE
WEEKEND CONTINUES TO LOOK INTERESTING WITH WET WEATHER LIKELY,
MORE ON THIS WITH THE AFTERNOON PACKAGE.

&&

.PREV DISCUSSION /330 AM MST/...SFC DEW POINTS THIS MORNING ARE
FROM 3 TO 6 DEGREES LOWER THAN 24 HOURS AGO WEST OF A LINE FROM
PAGE-SEDONA-PRESCOTT...AND SATELLITE PW ALSO SHOWS LOWER VALUES
THAN 24 HRS AGO IN THIS AREA. STILL CANT RULE OUT AN ISOLATED
AFTERNOON STORM IN THIS AREA TODAY AND THURSDAY. FURTHER
EAST...SCATTERED SHOWERS AND THUNDERSTORMS SHOULD REDEVELOP ACROSS
THE SOUTHERN HALVES OF NAVAJO AND APACHE COUNTIES.

FRIDAY THROUGH SUNDAY...MODEL RUN TO RUN CONSISTENCY IS GOOD AS
THEY CONTINUE TO INDICATE HIGHER TROPICAL MOISTURE VALUES TO MOVE
NORTHWARD INTO THE REGION ON FRIDAY AND REMAIN THROUGH AT LEAST
SUNDAY. THIS MOISTURE SURGE IS COMING UP THE GULF OF CALIFORNIA ON
SOUTHERLY FLOW. THE MOISTURE AXIS AND HIGHEST FORECAST
PRECIPITATION AMOUNTS CONTINUES TO BE ALONG THE LOWER COLORADO
RIVER VALLEY, YAVAPAI AND COCONINO COUNTIES FRIDAY INTO SATURDAY,
POSSIBLY SHIFTING EASTWARD INTO THE REMAINDER OF NORTHERN AZ
LATER SATURDAY INTO SUNDAY. PRECIP IS LIKELY ACROSS YAVAPAI AND
COCONINO COUNTIES FRIDAY NIGHT INTO SATURDAY...WITH SOME LIFT
PROVIDED BY THE RIGHT ENTRANCE REGION OF A JET SPEED MAX SHOWN TO
BE OVER NW AZ. PROBABLY NOT A GREAT WEEKEND FOR OUTDOOR
ACTIVITIES, INCLUDING VENTURING INTO THE NARROW CANYONS OF
NORTHERN AZ. STAY TUNED.

FOR MONDAY AND TUESDAY...DRIER SW FLOW EXPECTED THESE DAYS AND
PRECIP CHANCES ARE SLIGHTLY BELOW NORMAL.

&&

.AVIATION...FOR THE 18Z PACKAGE...SCT SHRA/TSRA THRU 03Z-06Z THIS
EVENING THEN ISOLD AFT THAT TIME...MAINLY ALONG AND EAST OF A KPGA-
KFLG-KPHX LINE. WEST OF THE LINE FROM 18Z-03Z...ISOLD TSRA. MVFR TO
IFR CONDITIONS POSSIBLE IN STORMS WITH GUSTS TO 40 KNOTS IN
STRONGEST STORMS. AVIATION DISCUSSION NOT UPDATED FOR TAF
AMENDMENTS.
&&

.FIRE WEATHER...WEDNESDAY THROUGH THURSDAY...DECREASING STORM
CHANCES FOR THE WESTERN AND CENTRAL ZONES AS DRIER AIR MOVES IN.
EASTERN ARIZONA WILL CONTINUE TO SEE THE BEST CHANCES FOR
PRECIPITATION. HIGH TEMPERATURES WILL BE A FEW DEGREES BELOW NORMAL.
EXPECT VERY GOOD TO EXCELLENT AFTERNOON VENTILATION.

ON FRIDAY...MOISTURE BEGINS TO SURGE BACK INTO ARIZONA FROM THE
SOUTH BRINGING A BETTER CHANCE FOR SHOWERS AND THUNDERSTORMS. THIS
MOIST PATTERN WILL CONTINUE INTO THE WEEKEND...WITH COOLER THAN
&&

.FGZ WATCHES/WARNINGS/ADVISORIES...NONE.

&&

PUBLIC...JJ/DL
AVIATION...TC
FIRE WEATHER...CLM

FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT
WEATHER.GOV/FLAGSTAFF

Hazardous weather outlook, Jul 15, 4:33 AM MDT, 9 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
333 AM MST WED JUL 15 2015

AZZ004>018-037>040-160700-
KAIBAB PLATEAU-MARBLE AND GLEN CANYONS-GRAND CANYON COUNTRY-
COCONINO PLATEAU-YAVAPAI COUNTY MOUNTAINS-
NORTHEAST PLATEAUS AND MESAS HWY 264 NORTHWARD-CHINLE VALLEY-
CHUSKA MOUNTAINS AND DEFIANCE PLATEAU-
LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY-
LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY-
LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY-
WESTERN MOGOLLON RIM-EASTERN MOGOLLON RIM-WHITE MOUNTAINS-
NORTHERN GILA COUNTY-YAVAPAI COUNTY VALLEYS AND BASINS-
OAK CREEK AND SYCAMORE CANYONS-BLACK MESA AREA-
NORTHEAST PLATEAUS AND MESAS SOUTH OF HWY 264-
333 AM MST WED JUL 15 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...
NORTHERN GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN
ARIZONA.

.DAY ONE...TODAY AND TONIGHT

EXPECT SCATTERED THUNDERSTORMS ACROSS THE SOUTHERN HALVES OF
NAVAJO AND APACHE COUNTIES THIS AFTERNOON AND EVENING.
THERE IS A SLIGHT CHANCE OF AFTERNOON STORMS ELSEWHERE IN NORTHERN
ARIZONA. HEAVY RAINFALL...LIGHTNING AND SMALL HAIL ARE THE
PRIMARY HAZARDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A SLIGHT DECREASE IN STORM COVERAGE IS FORECAST THURSDAY WEST OF
FLAGSTAFF...WITH SCATTERED STORMS CONTINUING ALONG THE MOGOLLON
RIM INTO EASTERN ARIZONA.

FROM FRIDAY THROUGH SUNDAY...PRESENT INDICATIONS ARE FOR A
SIGNIFICANT MOISTURE INCREASE ACROSS MUCH OF ARIZONA. THIS COULD LEAD
TO HEAVY RAINFALL AND FLASH FLOODING. STAY TUNED FOR UPDATED
FORECASTS AT WEATHER.GOV/FLAGSTAFF

.SPOTTER INFORMATION STATEMENT...

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

In the hours before

Special weather statement, Jul 15, 12:09 PM MDT, 2 hours 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1109 AM MST WED JUL 15 2015

AZZ012-151845-
LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY-
1109 AM MST WED JUL 15 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COCONINO COUNTY
UNTIL 1145 AM MST...

AT 1108 AM MST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
OVER RIMMY JIMS...OR 16 MILES WEST OF WINSLOW...MOVING NORTHEAST AT 5
MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
RIMMY JIMS. INTERSTATE 40 FROM MILE POST 235 TO 245.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3505 11096 3508 11104 3525 11101 3516 11082
TIME...MOT...LOC 1808Z 204DEG 6KT 3511 11098

JJ

Special weather statement, Jul 15, 12:45 PM MDT, 1 hour 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1145 AM MST WED JUL 15 2015

AZZ012-013-151915-
LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY-LITTLE COLORADO RIVER
VALLEY IN NAVAJO COUNTY-
1145 AM MST WED JUL 15 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COCONINO AND WEST
CENTRAL NAVAJO COUNTIES UNTIL 1215 PM MST...

AT 1143 AM MST...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR RIMMY JIMS TO 7 MILES
SOUTH OF WINSLOW...AND MOVING EAST AT 20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE... WINSLOW...RIMMY JIMS AND HOMOLOVI
STATE PARK CAMPGROUND. INTERSTATE 40 BETWEEN MILE POST 235 AND 260
WILL BE IMPACTED BY HEAVY RAIN AND HAIL...MAKING DRIVING DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3526 11082 3490 11038 3486 11067 3518 11113
TIME...MOT...LOC 1843Z 257DEG 19KT 3515 11099 3493 11066

JJ

Special weather statement, Jul 15, 1:20 PM MDT, 1 hour 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1220 PM MST WED JUL 15 2015

AZZ010-039-152000-
CHINLE VALLEY-BLACK MESA AREA-
1220 PM MST WED JUL 15 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN NAVAJO AND NORTHWESTERN
APACHE COUNTIES UNTIL 100 PM MST...

AT 1219 PM MST...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTHEAST OF
CHILCHINBITO TO 15 MILES NORTHEAST OF BLUE GAP CHAPTER HOUSE...AND
MOVING EAST AT 10 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
ROUGH ROCK AND MANY FARMS LAKE.
ROUTE 59 AND 18 IN THIS AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3676 10969 3636 10953 3634 10987 3664 11002
TIME...MOT...LOC 1919Z 253DEG 10KT 3663 10994 3637 10983

JJ

Special weather statement, Jul 15, 1:26 PM MDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
1226 PM MST WED JUL 15 2015

AZZ013-152000-
LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY-
1226 PM MST WED JUL 15 2015

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL NAVAJO COUNTY UNTIL
100 PM MST...

AT 1225 PM MST...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 9
MILES WEST OF JOSEPH CITY...OR 12 MILES EAST OF WINSLOW
NEAR MILE POST 265 ON INTERSTATE 40...MOVING NORTHEAST AT 10 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF WEST CENTRAL NAVAJO
COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3490 11049 3499 11063 3516 11051 3502 11030
TIME...MOT...LOC 1925Z 220DEG 9KT 3499 11049

JJ

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 8:10 PM MDT	Flash Flood Warning	FGZ	Coconino	2 hr
Jul 15, 12:09 PM MDT	Special Weather Statement	FGZ		36 min
Jul 15, 12:45 PM MDT	Special Weather Statement	FGZ	Navajo	30 min
Jul 15, 1:16 PM MDT	Areal Flood Advisory	FGZ	Coconino, Navajo	119 min
Jul 15, 1:20 PM MDT	Special Weather Statement	FGZ		40 min
Jul 15, 1:26 PM MDT	Special Weather Statement	FGZ	Navajo	34 min
Jul 15, 3:04 PM MDT	Areal Flood Advisory	FGZ	Navajo	116 min
Jul 15, 4:10 PM MDT	Special Weather Statement	FGZ		35 min
Jul 15, 5:04 PM MDT	Areal Flood Advisory	FGZ	Apache	116 min
Jul 15, 5:22 PM MDT	Flash Flood Warning	FGZ	Apache	113 min
Jul 15, 5:31 PM MDT	Areal Flood Advisory	FGZ	Navajo	59 min

Nearby

Flash Flood Warnings in Arizona, 2015 Every flash flood warning in 2015

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.