Alert archive / Alabama / Flash Flood Warnings in 2015

Flash Flood Warning 8, NWS Birmingham, AL

July 4, 2015Jefferson County, Alabama

NWS Birmingham, AL issued this flash flood warning at Jul 4, 2015, 6:29 AM CDT for Jefferson County, Alabama. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 4, 2015, 6:29 AM CDT (11:29 UTC)
Expired: Jul 4, 2015, 9:30 AM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

County Jefferson County, AL

The radar

The Birmingham radar (KBMX), 47 km from the middle of the area, began a volume at 11:32 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.

What was reported inside it

Time	Report	Where	Remark
Jul 4, 7:00 AM CDT	FLASH FLOOD	Ensley, AL	VILLAGE CREEK AT AVENUE W HAS GONE ABOVE FLOOD STAGE.
Jul 4, 7:55 AM CDT	FLASH FLOOD	6 S Birmingham, AL	WATER RESCUES ONGOING AT AN APARTMENT COMPLEX ALONG SHADES CREEK NEAR THE INTERSECTION OF LAKESHORE DR AND GREEN SPRINGS HWY. THIS LOCATION IS PRONE TO FLOODING DURING HEAVY RAINFALL EVENTS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this flash flood warning; the first came 31 minutes after it went out.

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

Birmingham, AL (KBMX), launched 00:00Z, 11.5 hours before the alert went out and 46 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: 1393 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 177 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.

190 
WGUS54 KBMX 041129
FFWBMX
ALC073-041430-
/O.NEW.KBMX.FF.W.0008.150704T1129Z-150704T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BIRMINGHAM AL
629 AM CDT SAT JUL 4 2015

THE NATIONAL WEATHER SERVICE IN BIRMINGHAM HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON COUNTY IN CENTRAL ALABAMA...

* UNTIL 930 AM CDT
    
* AT 629 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  BIRMINGHAM...HOOVER...VESTAVIA HILLS...BESSEMER...HOMEWOOD...
  MOUNTAIN BROOK...TRUSSVILLE...HUEYTOWN...GARDENDALE...IRONDALE...
  LEEDS...MOODY...FAIRFIELD...FULTONDALE...SUMITON...CENTER POINT...
  PLEASANT GROVE...CLAY...PINSON AND TARRANT.

ADDITIONAL RAINFALL OF 2 TO 4 INCHES POSSIBLE IN THE WARNED AREA.

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 VEHICLES.

&&

LAT...LON 3384 8676 3377 8665 3376 8654 3356 8655
      3353 8652 3347 8661 3347 8667 3325 8698
      3325 8706 3328 8707 3346 8734 3349 8733
      3350 8726 3353 8727 3355 8719 3360 8719
      3366 8706 3377 8702 3384 8688

$$

87/GRANTHAM

1 follow-up statement

779 
WGUS74 KBMX 041355
FFSBMX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
855 AM CDT SAT JUL 4 2015

ALC073-041430-
/O.CON.KBMX.FF.W.0008.000000T0000Z-150704T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JEFFERSON AL-
855 AM CDT SAT JUL 4 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM CDT FOR
JEFFERSON COUNTY...

AT 849 AM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN THE 
HOMEWOOD AND VESTAVIA HILLS AREAS OF SOUTHERN JEFEFRSON 
COUNTY...WITH SOME HIGH WATER RESCUES TAKING PLACE AT APARTMENT 
COMPLEXES ON LAKESHORE DRIVE. POOR DRAINAGE AREAS ACROSS MUCH OF 
METRO BIRMINGHAM WERE ALSO EXPERIENCING HIGH WATER LEVELS. RAINFALL 
ESTIMATES FROM RADAR INDICATE THAT UP TO THREE INCHES OF RAIN HAS 
FALLEN IN THIS AREA. ALTHOUGH THE HEAVIEST RAIN HAS SHIFTED TO THE 
SOUTH...FLASH FLOODING WILL CONTNINUE UNTIL THE WATER IS ABLE TO 
RECEED.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BIRMINGHAM...HOOVER...VESTAVIA HILLS...BESSEMER...HOMEWOOD...MOUNTAIN
BROOK...TRUSSVILLE...HUEYTOWN...GARDENDALE...IRONDALE...LEEDS...
MOODY...FAIRFIELD...FULTONDALE...SUMITON...CENTER POINT...PLEASANT
GROVE...CLAY...PINSON AND TARRANT.

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 VEHICLES.

&&

LAT...LON 3384 8676 3377 8665 3376 8654 3356 8655
      3353 8652 3347 8661 3347 8667 3325 8698
      3325 8706 3328 8707 3346 8734 3349 8733
      3350 8726 3353 8727 3355 8719 3360 8719
      3366 8706 3377 8702 3384 8688

$$

61

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 Birmingham, AL wrote its last area forecast discussion before this flash flood warning went out at Jul 4, 3:33 AM CDT, 2 hours 56 minutes earlier.

Area forecast discussion, Jul 4, 3:33 AM CDT, 2 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BIRMINGHAM AL
333 AM CDT SAT JUL 4 2015

.SHORT TERM...
THROUGH 12Z MONDAY.

RADAR IMAGERY IS VERY SIMILAR TO THIS TIME YESTERDAY MORNING...
WITH A PERSISTENT CORRIDOR OF SHOWERS AND STORMS EXTENDING
ACROSS THE NORTHERN PART OF THE CWA AND WESTWARD INTO ARKANSAS.
THE FORECAST AREA IS POSITIONED AHEAD OF A SLOW-MOVING POSITIVELY
TILTED 500MB TROUGH AXIS. HIGH PWAT VALUES AND UNIDIRECTIONAL
WESTERLY FLOW WILL CONTINUE TO SUPPORT MULTIPLE ROUNDS OF
THUNDERSTORM ACTIVITY THROUGH SUNDAY MORNING MAINLY ACROSS THE
NORTHERN HALF OF THE CWA...AND A FLASH FLOOD WATCH HAS BEEN
ISSUED FOR THOSE AREAS. VERY HEAVY RAINFALL UPSTREAM ACROSS
MISSISSIPPI IS ON A TRAJECTORY TOWARD MARION COUNTY...WHERE
RAINFALL ESTIMATES ARE APPROACHING 10 INCHES SINCE JULY 1ST. VERY
SATURATED GROUND EXISTS IN THE FLASH FLOOD WATCH AREA...AND FLASH
FLOODING COULD BECOME A SIGNIFICANT ISSUE LATER THIS MORNING.

FARTHER SOUTH...ADDITIONAL THUNDERSTORM ACTIVITY IS EXPECTED AS
DAYTIME HEATING OCCURS. 700-500MB FLOW OF 30-40KT WILL SUPPORT
BOWING SEGMENTS AND A POTENTIAL FOR ISOLATED DAMAGING WIND MAINLY
THIS AFTERNOON AND EVENING...SIMILAR TO WHAT OCCURRED YESTERDAY.

THE SOUTHERN END OF THE UPPER-LEVEL TROUGH IS EXPECTED TO AMPLIFY
TONIGHT AND BECOME NEARLY CLOSED OFF SUNDAY MORNING AS IT MOVES
SLOWLY ACROSS TENNESSEE. WITH A LACK OF RIDGING UPSTREAM FROM THE
TROUGH...PWAT VALUES SHOULD REMAIN QUITE HIGH NEAR AND BEHIND THE
THROUGH AXIS. HAVE RAISED POPS ACROSS THE ENTIRE CWA FOR SUNDAY...
AND CANNOT RULE OUT A NEED FOR THE FLASH FLOOD WATCH TO BE
EXTENDED IN TIME AND/OR EXPANDED SOUTHWARD.

87/GRANTHAM

.LONG TERM...
AFTER 12Z MONDAY.

THE TROUGH FINALLY BEGINS TO EXIT ON MONDAY AS A COLD FRONT TRIES
TO SWING DOWN TOWARD THE AREA. HOWEVER IT LOOKS LIKE THE BERMUDA
RIDGE WILL BUILD INTO THE AREA AND KEEP THE FRONT FROM WORKING
INTO THE AREA AND EVENTUALLY PUSH IT BACK NORTH BY THURSDAY OR
FRIDAY. WITH THAT SCENARIO PRECIPITATION CHANCES WILL DROP
SIGNIFICANTLY TUESDAY/WEDNESDAY AS THE HIGH PRESSURE TRIES TO
BUILD INTO THE AREA. LOOKS LIKE WE DO GET BACK TO MORE OF A
CLIMATOLOGICAL SUMMER BY WEDNESDAY/THURSDAY WITH HIGHS BACK IN THE
UPPER 80S NORTH TO LOW 90S SOUTH AND ISOLATED/SCATTERED SHOWERS
STORMS IN THE PEAK HEATING OF THE DAY.

16

&&

.AVIATION...
06Z TAF DISCUSSION.

SHOWERS AND STORMS MOVING FROM WEST TO EAST ACROSS CENTRAL
ALABAMA WILL POSE A THREAT THE NEXT FEW HOURS. THE MAIN ACTIVITY
THE NEXT COUPLE OF HOURS WILL BE APPROACHING MGM. IN SHORT...
POTENTIAL IMPACTS POSSIBLE AT ANYTIME THIS OVERNIGHT WITH
STORMS/SHOWERS AND MVFR CEILINGS. WINDS GENERALLY SOUTH TO
SOUTHWEST AT 4 TO 8 KTS. ADDITIONAL SHOWERS AND STORMS POSSIBLE
IN THE AFTERNOON.

88

&&

.FIRE WEATHER...

HIGH HUMIDITY VALUES AND ABOVE NORMAL RAIN CHANCES WILL CONTINUE
FOR THE NEXT FEW DAYS. THERE ARE NO FIRE WEATHER CONCERNS.

&&

.PRELIMINARY POINT TEMPS/POPS...
GADSDEN     82  69  83  68  86 /  80  50  60  30  50
ANNISTON    84  69  83  68  86 /  70  60  60  30  50
BIRMINGHAM  83  70  84  70  86 /  80  60  60  30  50
TUSCALOOSA  85  71  87  70  89 /  80  60  60  30  50
CALERA      85  70  85  70  86 /  70  60  60  30  50
AUBURN      86  70  85  70  85 /  50  60  50  30  60
MONTGOMERY  90  72  87  71  88 /  60  60  60  30  60
TROY        90  71  88  70  88 /  50  60  50  30  70

&&

.BMX WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH SUNDAY MORNING FOR BLOUNT-CALHOUN-
CHEROKEE-CLAY-CLEBURNE-ETOWAH-FAYETTE-JEFFERSON-LAMAR-MARION-
PICKENS-RANDOLPH-SHELBY-ST. CLAIR-TALLADEGA-TUSCALOOSA-WALKER-
WINSTON.

&&

Hazardous weather outlook, Jul 4, 3:40 AM CDT, 2 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BIRMINGHAM AL
340 AM CDT SAT JUL 4 2015

ALZ011>015-017>050-051145-
MARION-LAMAR-FAYETTE-WINSTON-WALKER-BLOUNT-ETOWAH-CALHOUN-CHEROKEE-
CLEBURNE-PICKENS-TUSCALOOSA-JEFFERSON-SHELBY-ST. CLAIR-TALLADEGA-
CLAY-RANDOLPH-SUMTER-GREENE-HALE-PERRY-BIBB-CHILTON-COOSA-TALLAPOOSA-
CHAMBERS-MARENGO-DALLAS-AUTAUGA-LOWNDES-ELMORE-MONTGOMERY-MACON-
BULLOCK-LEE-RUSSELL-PIKE-BARBOUR-
340 AM CDT SAT JUL 4 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE
NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM.

.DAY ONE...TODAY AND TONIGHT.

MORE SHOWERS AND THUNDERSTORMS HAVE DEVELOPED ACROSS THE NORTHERN
PORTIONS OF CENTRAL ALABAMA THIS MORNING AND WILL SLIDE OVER AN
ALREADY SATURATED GROUND. ANY ACTIVITY THAT TRAINS OVER THE SAME
AREAS WILL PRODUCE HEAVY RAINFALL AND COULD RESULT IN LOCALIZED
FLASH FLOODING THROUGH THE OVERNIGHT HOURS. THE GREATEST CONCERN
WILL BE ALONG AND NORTH OF AN ALICEVILLE...TO CALERA...TO ROANOKE
LINE. HOWEVER...ISOLATED AREAS OF PROLONGED RAINFALL WILL POSSIBLE
SOUTH OF THIS LINE AS WELL.

IN ADDITION TO THE FLOODING...AN ISOLATED SEVERE THUNDERSTORM
WILL BE POSSIBLE ANY ACROSS CENTRAL ALABAMA FROM 10 AM TO 10 PM.
DAMAGING WINDS WILL BE THE MAIN CONCERN WITH ANY STORM THAT DOES
DEVELOP.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE
NEEDED THROUGH TONIGHT.

In the hours before

Local storm report, Jul 4, 12:36 AM CDT, 5 hours 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1236 AM CDT SAT JUL 04 2015

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

1205 AM     TSTM WND DMG     6 NE JACKSONS GAP       32.94N 85.75W
07/04/2015                   TALLAPOOSA         AL   EMERGENCY MNGR

            TREES DOWN IN TWO SEPARATE LOCATIONS NEAR THE EAGLE CREEK
            COMMUNITY.

&&

GRANTHAM

Special weather statement, Jul 4, 12:39 AM CDT, 5 hours 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1239 AM CDT SAT JUL 4 2015

ALZ045-040630-
MACON AL-
1239 AM CDT SAT JUL 4 2015

...SIGNIFICANT WEATHER ADVISORY FOR MACON COUNTY UNTIL 130 AM CDT...

AT 1239 AM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR TUSKEGEE NATIONAL
FOREST TO NEAR HARDAWAY...AND MOVING EAST AT 35 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
TUSKEGEE...NOTASULGA...SHORTER...FRANKLIN...LAKE TUSKEGEE...
DAVISVILLE...SOCIETY HILL...TUSKEGEE NATIONAL FOREST...HARDAWAY...
LIVERPOOL...CREEK STAND...WARRIORSTAND...MOTON FIELD MUNICIPAL
AIRPORT...UPHAPEE CREEK...FORT DAVIS...CROSS KEYS AND I 85 REST 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 3223 8585 3225 8588 3229 8588 3230 8590
      3227 8590 3229 8594 3232 8596 3234 8599
      3238 8601 3255 8561 3250 8549 3249 8544
      3223 8543
TIME...MOT...LOC 0539Z 282DEG 29KT 3252 8554 3230 8592

87/GRANTHAM

Local storm report, Jul 4, 12:52 AM CDT, 5 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1252 AM CDT SAT JUL 04 2015

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

0930 PM     TSTM WND DMG     4 E LAFAYETTE           32.89N 85.33W
07/03/2015                   CHAMBERS           AL   911 CALL CENTER

            TREES DOWN IN NUMEROUS LOCATIONS ACROSS CHAMBERS COUNTY
            INCLUDING LAFAYETTE...LANETT...AND VALLEY.

&&

GRANTHAM

Local storm report, Jul 4, 1:18 AM CDT, 5 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
118 AM CDT SAT JUL 04 2015

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

0932 PM     TSTM WND DMG     3 NNW PHENIX CITY       32.50N 85.03W
07/03/2015                   RUSSELL            AL   BROADCAST MEDIA

            SEVERAL TREES DOWN. ALSO A HOME WEATHER STATION RECORDED
            A 57 MPH WIND GUST IN NORTH PHENIX CITY.

&&

GRANTHAM

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 7:01 PM CDT	Special Weather Statement	BMX	Lowndes	44 min
Jul 3, 7:21 PM CDT	Special Weather Statement	BMX	Montgomery	54 min
Jul 3, 7:38 PM CDT	Special Weather Statement	BMX	Tuscaloosa	52 min
Jul 3, 7:45 PM CDT	Special Weather Statement	BMX	Greene	45 min
Jul 3, 8:07 PM CDT	Special Weather Statement	BMX	Lamar, Marion	53 min
Jul 3, 8:36 PM CDT	Special Weather Statement	BMX	Elmore, Tallapoosa	39 min
Jul 3, 10:40 PM CDT	Special Weather Statement	BMX	Autauga, Chilton, Dallas, Perry, Shelby	65 min
Jul 3, 11:30 PM CDT	Severe Thunderstorm Warning	BMX	Coosa, Tallapoosa	60 min
Jul 3, 11:36 PM CDT	Special Weather Statement	BMX	Elmore	54 min
Jul 4, 12:06 AM CDT	Special Weather Statement	BMX	Chambers	39 min
Jul 4, 12:13 AM CDT	Severe Thunderstorm Warning	BMX	Chambers, Randolph	28 min
Jul 4, 12:20 AM CDT	Special Weather Statement	BMX	Lee	40 min
Jul 4, 12:34 AM CDT	Areal Flood Advisory	BMX	Marion, Winston	3 hr
Jul 4, 12:39 AM CDT	Special Weather Statement	BMX	Macon	51 min
Jul 4, 2:47 AM CDT	Flash Flood Watch	BMX	Blount, Calhoun, Cherokee, Clay, Cleburne, Etowah and 12 more	20 hr
Jul 4, 3:59 AM CDT	Areal Flood Advisory	BMX	Jefferson	3 hr
Jul 4, 4:11 AM CDT	Flash Flood Warning	BMX	Fayette, Lamar, Marion, Walker, Winston	6 hr
Jul 4, 6:25 AM CDT	River Flood Warning	BMX	Jefferson	21 hr
Jul 4, 7:30 AM CDT	Flash Flood Warning	BMX	Shelby	3 hr
Jul 4, 1:34 PM CDT	Special Weather Statement	BMX	Greene, Hale	41 min
Jul 4, 2:05 PM CDT	Special Weather Statement	BMX	Hale, Perry	55 min
Jul 4, 2:59 PM CDT	Special Weather Statement	BMX	Bibb, Chilton, Perry	61 min
Jul 4, 4:38 PM CDT	Special Weather Statement	BMX	Autauga	22 min
Jul 4, 5:08 PM CDT	Special Weather Statement	BMX	Montgomery	37 min
Jul 4, 5:23 PM CDT	Severe Thunderstorm Warning	BMX	Elmore, Tallapoosa	37 min
Jul 4, 5:55 PM CDT	Special Weather Statement	BMX	Macon, Tallapoosa	35 min

Nearby

Flash Flood Warnings in Alabama, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.