Alert archive / Oklahoma / Flash Flood Warnings in 2015

Flash Flood Warning 81, NWS Norman, OK

May 28, 2015Comanche County, Oklahoma

NWS Norman, OK issued this flash flood warning at May 28, 2015, 4:20 PM CDT for Comanche County, Oklahoma. 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 counties it named.

The facts

Issued: May 28, 2015, 4:20 PM CDT (21:20 UTC)
Expired: May 28, 2015, 7:15 PM CDT
In force: 3 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

County Comanche County, OK

The radar

The Altus AFB radar (KFDR), 57 km from the middle of the area, began a volume at 21:22 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

Norman, OK (KOUN), launched 12:00Z, 9.3 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-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: 39 J/kg
Mixed-layer CIN: -204 J/kg
Mixed-layer LCL: 1310 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 121 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this flash flood warning went out at May 28, 3:30 PM CDT, 50 minutes earlier.

Area forecast discussion, May 28, 3:30 PM CDT, 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
330 PM CDT THU MAY 28 2015

.DISCUSSION...
OUR ATTENTION REMAINS SQUARELY FOCUSED ON HEAVY RAIN/FLOODING AND
SEVERE WEATHER POTENTIAL TODAY THROUGH SATURDAY NIGHT.

SEVERE STORMS HAVE DEVELOPED EARLY THIS AFTERNOON WITHIN A VERY
MOIST AND UNSTABLE ENVIRONMENT. AS A BROAD UPPER LEVEL STORM
SYSTEM MEANDERS ACROSS THE SOUTHERN PLAINS...EXPECT STORMS TO
BECOME MORE NUMEROUS THROUGH THE EVENING HOURS. STORMS HAVE
REMAINED SOMEWHAT DISCRETE SO FAR...BUT WITH COLD POOL MERGERS...A
LARGE EAST OR SOUTHEASTWARD MOVING COMPLEX IS LIKELY. A COUPLE OF
TORNADOES MAY ACCOMPANY THE INITIAL STORMS...BUT THE THREAT WILL
TRANSITION MORE TO A LARGE HAIL/DAMAGING WIND/FLOODING THREAT THIS
EVENING AND TONIGHT. THE COMPLEX SHOULD MOVE EASTWARD...BRINGING
WIDESPREAD MODERATE TO HEAVY RAINFALL TO MUCH OF CENTRAL AND
SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

SHOWERS AND A FEW STORMS MAY LINGER INTO THE FIRST PART OF
TOMORROW. ANOTHER COMPLEX OF STORMS MAY THEN FORM LATE TOMORROW
AFTERNOON AND EVENING...AND MOVE FROM WEST CENTRAL AND
SOUTHWESTERN OKLAHOMA...INTO WESTERN NORTH TEXAS AND SOUTH CENTRAL
OKLAHOMA...BRINGING ANOTHER BATCH OF HEAVY RAINFALL TO AREAS THE
RECEIVE HEAVY RAIN TODAY. SOME SEVERE POTENTIAL WILL ALSO LIKELY
ACCOMPANY STORMS TOMORROW...BUT THE PRIMARY CONCERN WILL BE HEAVY
RAIN AND FLOODING.

A FRONT WILL MOVE ACROSS OKLAHOMA AND INTO NORTHERN AND CENTRAL
TEXAS OVERNIGHT TOMORROW NIGHT INTO THE DAY ON SATURDAY.
WIDESPREAD STORMS WILL REMAIN POSSIBLE DURING THIS TIME. STORMS
ALONG AND SOUTH OF THE BOUNDARY WILL HAVE SOME SEVERE
POTENTIAL...WHILE MODERATE TO HEAVY RAINFALL MAY EXIST
ALONG/BEHIND THE BOUNDARY. AGAIN...PERSISTENT HEAVY RAINFALL OVER
THE SAME AREAS WILL RESULT IN A NOTED FLASH FLOODING THREAT...AND
INCREASED THREAT OF WORSENING RIVER FLOODING.

WITH THE CONTINUED RISK OF HEAVY RAINS AND FLOODING...WILL GO
AHEAD AND KEEP THE FLASH FLOOD WATCH INTACT THROUGH 12Z SUNDAY.
THOUGH PORTIONS OF NORTHWESTERN OKLAHOMA MAY NOT SEE QUITE AS MUCH
RAIN AS OTHER AREAS...HEAVY RAIN IN A SHORT DURATION MAY STILL
POSE A THREAT OF FLASH FLOODING IN LOCALIZED AREAS.

ONCE THE FRONT CLEARS THE AREA SATURDAY AFTERNOON OR SUNDAY
NIGHT...A COOLER DRIER AIRMASS WILL FILL INTO OKLAHOMA AND NORTH
TEXAS. WEAK MID LEVEL RIDGING LOOKS TO BUILD INTO THE SOUTHERN
PLAINS EARLY NEXT WEEK...WHICH SHOULD CUT OFF RAIN CHANCES FOR AT
LEAST A FEW DAYS.

AUSTIN

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  65  80  62  73 /  70  60  70  40
HOBART OK         63  80  60  74 /  60  40  70  40
WICHITA FALLS TX  65  83  64  77 / 100  40  70  50
GAGE OK           61  80  56  72 /  50  40  50  20
PONCA CITY OK     66  81  61  73 /  70  50  60  20
DURANT OK         67  81  65  77 /  90  60  70  70

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH THROUGH SUNDAY MORNING FOR OKZ004>048-050>052.

TX...FLASH FLOOD WATCH THROUGH SUNDAY MORNING FOR TXZ083>090.

&&

06/84

Hazardous weather outlook, May 28, 12:04 PM CDT, 4 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1204 PM CDT THU MAY 28 2015

OKZ004>048-050>052-TXZ083>090-291715-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1204 PM CDT THU MAY 28 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

.THUNDERSTORMS...
THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS WESTERN
NORTH TEXAS THIS AFTERNOON AND EVENING. A SLIGHT RISK IS NORTH
AND EAST OF THE ENHANCED RISK AREA.

LOCATION...
THE ENHANCED RISK IS ACROSS ALL OF WESTERN NORTH TEXAS. THE
SLIGHT RISK AREA IS GENERALLY ALONG AND WEST OF A LINE FROM PONCA
CITY TO SEMINOLE TO DURANT.

TIMING...
THROUGH MIDNIGHT...

IMPACTS...
LARGE HAIL UP TO TENNIS BALLS...
DAMAGING WINDS UP TO 70 MPH...
LOCALLY HEAVY RAINFALL WHICH MAY CAUSE FLASH FLOODING...

THERE IS ALSO A LOW POTENTIAL FOR TORNADOES ACROSS WESTERN
OKLAHOMA AND WESTERN NORTH TEXAS.

DISCUSSION...
SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP
ACROSS PARTS OF THE TEXAS PANHANDLE AND WEST TEXAS INTO PARTS OF
OKLAHOMA AND WESTERN NORTH TEXAS THIS AFTERNOON. THESE STORMS MAY
EVENTUALLY DEVELOP INTO ONE OR MORE STORM COMPLEXES THAT MOVE
ACROSS THE AREA.

INSTABILITY IS SUFFICIENT FOR SEVERE STORMS TO DEVELOP PRODUCING
LARGE HAIL AND DAMAGING WINDS. SEVERAL OUTFLOW BOUNDARIES ARE
DRAPED ACROSS THE AREA. ANY STORMS NEAR THESE BOUNDARIES COULD
ALSO HAVE THE POTENTIAL OF PRODUCING A FEW TORNADOES IN WESTERN
OKLAHOMA AND WESTERN NORTH TEXAS.

THE SEVERE POTENTIAL IS EXPECTED TO DECREASE AFTER MIDNIGHT.

LOCALLY HEAVY RAINFALL OF A FEW INCHES COULD ALSO OCCUR IN SMALL
AREAS THROUGH TONIGHT.

.SPOTTER AND EMERGENCY MANAGEMENT STATEMENT...

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS
THE RISK AREAS SHOULD PREPARE FOR SEVERE WEATHER OPERATIONS THIS
AFTERNOON AND EVENING.

.FLOODING...
NUMEROUS STREAMS... CREEKS... AND RIVERS REMAIN IN FLOOD ACROSS
PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS. A FLASH FLOOD WATCH
REMAINS IN EFFECT TODAY FOR ALL OF OKLAHOMA AND NORTH TEXAS.

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

.FLOODING...
NUMEROUS STREAMS...CREEKS...AND RIVERS WILL REMAIN IN FLOOD
ACROSS PARTS OF OKLAHOMA AND WESTERN NORTH TEXAS THROUGH THE
WEEKEND.

.THUNDERSTORMS...
ADDITIONAL STRONG TO SEVERE THUNDERSTORMS WITH HEAVY RAINFALL WILL
OCCUR FRIDAY INTO SATURDAY. STORM CHANCES WILL DECREASE
SIGNIFICANTLY SUNDAY THROUGH THE MIDDLE OF NEXT WEEK.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

In the hours before

Special weather statement, May 28, 3:35 PM CDT, 45 minutes before

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Local storm report, May 28, 3:38 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
338 PM CDT THU MAY 28 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0312 PM     HAIL             5 S LAWTON              34.53N 98.42W
05/28/2015  E1.00 INCH       COMANCHE           OK   BROADCAST MEDIA

0333 PM     FLOOD            N RUSH SPRINGS          34.78N 97.96W
05/28/2015                   GRADY              OK   LAW ENFORCEMENT

            WATER OVER ROADWAY ON BUSINESS 81 NORTH OF RUSH SPRINGS.

&&

MDAY

Local storm report, May 28, 3:52 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
352 PM CDT THU MAY 28 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0339 PM     HAIL             4 E LAWTON              34.61N 98.36W
05/28/2015  E1.50 INCH       COMANCHE           OK   PUBLIC

&&

MDAY

Local storm report, May 28, 3:57 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
357 PM CDT THU MAY 28 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0356 PM     HAIL             1 SE CROWELL            33.97N 99.71W
05/28/2015  E1.50 INCH       FOARD              TX   COUNTY OFFICIAL

&&

MAUSTIN

Local storm report, May 28, 4:08 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
408 PM CDT THU MAY 28 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0355 PM     TSTM WND DMG     3 W TRUSCOTT            33.75N 99.86W
05/28/2015                   KNOX               TX   PUBLIC

            TREE LIMBS DOWN.

&&

MDAY

Local storm report, May 28, 4:19 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
419 PM CDT THU MAY 28 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0415 PM     FLOOD            LAWTON                  34.60N 98.42W
05/28/2015                   COMANCHE           OK   TRAINED SPOTTER

            REPORTS OF WATER 2 TO 3 INCHES DEEP ON ROADWAYS AND WATER
            RUNNING OVER THE CURB NEAR I-44 AND LEE.

&&

MDAY

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 8:21 PM CDT	Special Weather Statement	OUN	Roger Mills	39 min
May 27, 8:31 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Roger Mills	44 min
May 27, 8:57 PM CDT	Tornado Warning	OUN	Ellis, Roger Mills	33 min
May 27, 9:30 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Ellis, Roger Mills	45 min
May 27, 9:58 PM CDT	Areal Flood Advisory	OUN	Custer, Dewey, Ellis, Roger Mills, Woodward	3 hr
May 27, 10:16 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Roger Mills	25 min
May 27, 11:32 PM CDT	Special Weather Statement	OUN	Alfalfa, Major	43 min
May 27, 11:34 PM CDT	Special Weather Statement	OUN	Roger Mills	26 min
May 28, 12:05 AM CDT	Special Weather Statement	OUN	Alfalfa	25 min
May 28, 12:31 AM CDT	Special Weather Statement	OUN	Garfield, Grant	29 min
May 28, 12:37 AM CDT	Special Weather Statement	OUN	Beckham, Greer, Harmon	38 min
May 28, 12:40 AM CDT	Special Weather Statement	OUN	Alfalfa	35 min
May 28, 12:48 AM CDT	Special Weather Statement	OUN	Blaine	27 min
May 28, 1:01 AM CDT	Special Weather Statement	OUN	Kay	29 min
May 28, 1:10 AM CDT	Special Weather Statement	OUN	Blaine	50 min
May 28, 1:14 AM CDT	Special Weather Statement	OUN	Greer, Harmon	31 min
May 28, 1:38 AM CDT	Special Weather Statement	OUN	Kay	67 min
May 28, 1:41 AM CDT	Areal Flood Advisory	OUN	Grant, Kay	5 hr
May 28, 1:49 AM CDT	Special Weather Statement	OUN	Greer, Harmon, Jackson, Kiowa	26 min
May 28, 1:53 AM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	36 min
May 28, 1:58 AM CDT	Areal Flood Advisory	OUN	Blaine	5 hr
May 28, 2:39 AM CDT	Special Weather Statement	OUN	Major	66 min
May 28, 2:48 AM CDT	Special Weather Statement	OUN	Beckham, Greer, Harmon, Jackson, Kiowa, Tillman and 1 more	27 min
May 28, 3:07 AM CDT	Areal Flood Advisory	OUN	Alfalfa, Major, Woods	5 hr
May 28, 3:14 AM CDT	River Flood Warning	OUN	Kingfisher, Logan	56 hr
May 28, 3:23 AM CDT	Special Weather Statement	OUN	Caddo, Comanche, Cotton, Grady, Jackson, Kiowa and 1 more	37 min
May 28, 3:40 AM CDT	Special Weather Statement	OUN	Garfield	35 min
May 28, 4:10 AM CDT	Special Weather Statement	OUN	Caddo, Comanche, Cotton, Grady	35 min
May 28, 4:43 AM CDT	Special Weather Statement	OUN	Canadian, Cleveland, Comanche, Cotton, Grady, Jefferson and 3 more	62 min
May 28, 4:48 AM CDT	Special Weather Statement	OUN	Kingfisher	27 min
May 28, 4:56 AM CDT	Areal Flood Advisory	OUN	Canadian	3 hr
May 28, 5:21 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Oklahoma	24 min
May 28, 5:26 AM CDT	Flash Flood Warning	OUN	Canadian	3 hr
May 28, 5:41 AM CDT	Special Weather Statement	OUN	Carter, Cleveland, Garvin, Love, McClain, Murray and 2 more	64 min
May 28, 5:46 AM CDT	Areal Flood Advisory	OUN	Cleveland, Oklahoma	3 hr
May 28, 6:16 AM CDT	Tornado Warning	OUN	Cleveland, Pottawatomie	9 min
May 28, 6:24 AM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie	24 min
May 28, 6:50 AM CDT	Special Weather Statement	OUN	Carter, Johnston, Lincoln, Love, Marshall, Murray and 3 more	25 min
May 28, 7:07 AM CDT	Areal Flood Advisory	OUN	Carter, Cleveland, Coal, Garvin, Hughes, Jefferson and 8 more	3 hr
May 28, 7:15 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Johnston, Marshall, Pontotoc	60 min
May 28, 8:09 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Coal	51 min
May 28, 8:35 AM CDT	Areal Flood Advisory	OUN	Atoka, Bryan, Coal, Johnston, Marshall	3 hr
May 28, 2:33 PM CDT	Special Weather Statement	OUN	Stephens	27 min
May 28, 2:46 PM CDT	River Flood Warning	OUN	Garvin	38 hr
May 28, 2:52 PM CDT	Special Weather Statement	OUN	Comanche	23 min
May 28, 2:58 PM CDT	River Flood Warning	OUN	Jackson, Kiowa, Tillman	67 hr
May 28, 2:59 PM CDT	Severe Thunderstorm Warning	OUN	Grady, Stephens	46 min
May 28, 3:15 PM CDT	River Flood Warning	OUN	Cotton	3 days
May 28, 3:17 PM CDT	Special Weather Statement	OUN	Comanche	28 min
May 28, 3:23 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	52 min
May 28, 3:35 PM CDT	Special Weather Statement	OUN	Cleveland	25 min
May 28, 3:41 PM CDT	Areal Flood Advisory	OUN	Caddo, Comanche, Grady, McClain, Stephens	3 hr
May 28, 3:43 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady	32 min
May 28, 4:14 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady, McClain	33 min
May 28, 4:24 PM CDT	Special Weather Statement	OUN	Comanche	36 min
May 28, 4:29 PM CDT	Flash Flood Warning	OUN	Comanche, Grady	3 hr
May 28, 4:34 PM CDT	Special Weather Statement	OUN	Cleveland	26 min
May 28, 4:59 PM CDT	Special Weather Statement	OUN	Comanche	31 min
May 28, 5:12 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	21 min
May 28, 5:40 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	50 min
May 28, 5:58 PM CDT	Severe Thunderstorm Warning	OUN	Tillman	47 min
May 28, 6:03 PM CDT	Special Weather Statement	OUN	Comanche	27 min
May 28, 6:17 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jefferson, Stephens, Tillman	58 min
May 28, 6:32 PM CDT	Special Weather Statement	OUN	Stephens	28 min
May 28, 6:44 PM CDT	Areal Flood Advisory	OUN	Comanche, Cotton, Tillman	2 hr
May 28, 3:01 AM CDT	Special Weather Statement	OUN	Foard	44 min
May 28, 4:44 AM CDT	River Flood Warning	OUN	Wichita, Wilbarger	7 days
May 28, 1:38 PM CDT	Special Weather Statement	OUN	Wilbarger	22 min
May 28, 1:49 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	22 min
May 28, 2:17 PM CDT	Special Weather Statement	OUN	Foard	28 min
May 28, 2:29 PM CDT	Severe Thunderstorm Warning	OUN	Foard	61 min
May 28, 3:06 PM CDT	Tornado Warning	OUN	Foard, Hardeman	24 min
May 28, 3:28 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	47 min
May 28, 3:34 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Knox	41 min
May 28, 4:12 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Hardeman, Knox, Wilbarger	63 min
May 28, 4:36 PM CDT	Areal Flood Advisory	OUN	Baylor, Foard, Hardeman, Knox, Wilbarger	3 hr
May 28, 5:00 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor, Wichita, Wilbarger	45 min
May 28, 5:59 PM CDT	Areal Flood Advisory	OUN	Archer, Wichita	3 hr

Nearby

Flash Flood Warnings in Oklahoma, 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.