Alert archive / Arkansas / Flash Flood Warnings in 2016
Flash Flood Warning 36, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Apr 29, 2016, 6:26 PM CDT for Montgomery County, Polk County, Arkansas. 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
- Apr 29, 2016, 6:26 PM CDT (23:26 UTC)
- Expired
- Apr 29, 2016, 9:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Montgomery County, AR, Polk County, AR
The radar
The Western Arkansas radar (KSRX), 83 km from the middle of the area, began a volume at 23:27 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
Shreveport, LA (KBAD), launched 12:00Z, 11.4 hours before the alert went out and 236 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.
- Mixed-layer CAPE
- 1756 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 632 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 310 m²/s²
- 0-3 km storm-relative helicity
- 451 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 14.9
The text
As transmitted.
972
WGUS54 KLZK 292326
FFWLZK
ARC097-113-300230-
/O.NEW.KLZK.FF.W.0036.160429T2326Z-160430T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LITTLE ROCK AR
626 PM CDT FRI APR 29 2016
THE NATIONAL WEATHER SERVICE IN LITTLE ROCK HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MONTGOMERY COUNTY IN WESTERN ARKANSAS...
POLK COUNTY IN WESTERN ARKANSAS...
* UNTIL 930 PM CDT
* AT 623 PM CDT...HEAVY RAIN WAS FALLING IN MUCH OF THE WARNED AREA.
IN THE LAST 24 HOURS...PORTIONS OF THE WARNED AREA HAVE RECEIVED
AS MUCH AS THREE TO SIX INCHES OF RAIN. SHOWERS AND THUNDERSTORMS
ARE EXPECTED TO CONTINUE MOVING INTO THE REGION...AND THIS WILL
ONLY INCREASE THE HEAVY RAIN THREAT. WITH THE GROUND ALREADY
SATURATED...IT WILL NOT TAKE MUCH FOR FLASH FLOODING TO OCCUR.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MENA... MOUNT IDA... WICKES...
GRANNIS... HATFIELD... NORMAN...
ODEN... VANDERVOORT... MCCAULEY...
HARTLEY... COSSATOT RIVER STATE...
MIMOSA... LITTLE MISSOURI FALL...
MENA INTERMOUNTAIN AIRPORT...
OPAL... MOUNTAIN FORK... CANEY CREEK WILDERNE...
MAULDIN... SHADY... BARD SPRINGS RECREAT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST FLOOD
DEATHS OCCUR IN VEHICLES.
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 3473 9445 3473 9432 3470 9432 3469 9402
3467 9388 3471 9387 3472 9378 3475 9374
3474 9339 3434 9341 3436 9425 3419 9425
3419 9447
$$
57What 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 Little Rock, AR wrote its last area forecast discussion before this flash flood warning went out at Apr 29, 3:33 PM CDT, 2 hours 53 minutes earlier.
Area forecast discussion, Apr 29, 3:33 PM CDT, 2 hours 53 minutes before
AREA FORECAST DISCUSSION...UPDATE FOR AVIATION NATIONAL WEATHER SERVICE LITTLE ROCK AR 605 PM CDT FRI APR 2016 .AVIATION... AREAS OF MVFR AND SCATTERED IFR FLIGHT CONDITIONS WILL MAINLY BE SEEN THIS EVENING AND OVERNIGHT. A WARM FRONT AND UPPER LEVEL SHORT WAVE WILL MOVE ACROSS AR AND DEVELOP SCATTERED TO A TIME NUMEROUS SHOWERS AND THUNDERSTORMS. AREAS OF FOG...WILL ALSO BE ACROSS AR. AREAS OF HEAVY RAIN AS WELL AS STRONG TO ISOLATED SEVERE STORMS WILL BE POSSIBLE THIS EVENING AND OVERNIGHT. WINDS WILL BE SE TO SW AT 5 TO 15 MPH THIS EVENING AND OVERNIGHT. (59) && .PREV DISCUSSION... /ISSUED 333 PM CDT FRI APR 29 2016/ .SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT AN UPPER LOW PRESSURE SYSTEM CONTINUES OVER THE ROCKIES WITH AN UPPER RIDGE OVER THE SOUTHEAST U.S. THIS RIDGE IS BLOCKING THE UPPER LOW FROM MOVING EAST. SATURDAY AND SUNDAY THE UPPER LOW WILL SLOWLY MOVE INTO THE NORTHERN PLAINS. MOISTURE WILL CONTINUE TO STREAM OVER THE WARM FRONT AND SHOWERS AND THUNDERSTORMS WILL BECOME MORE WIDESPREAD TONIGHT. SHOWERS AND THUNDERSTORMS WILL BE NUMEROUS AGAIN OVERNIGHT. SURFACE LOW PRESSURE WILL BRING A COLD FRONT THROUGH ARKANSAS ON SATURDAY. THUNDERSTORMS WILL BE ASSOCIATED WITH THIS FRONT AS WELL...WITH THE FRONT EXITING THE EAST PART OF THE STATE SUNDAY MORNING. ONE TO THREE INCHES OF RAIN IS EXPECTED OVER THE CENTRAL AND SOUTHERN SECTIONS THROUGH SATURDAY. THE FLASH FLOOD WATCH HAS BEEN EXTENDED INTO SATURDAY EVENING. && .LONG TERM...MONDAY THROUGH FRIDAY NIGHT AS WE MOVE THROUGH THE WEEK WE WILL BE TRANSITIONING TO NORTHWESTERLY FLOW. THIS WILL DRIVE A WEAK FRONT INTO THE REGION BY WEDNESDAY. WITH LITTLE MOISTURE IN PLACE AHEAD OF THE BOUNDARY...NOT MUCH IN THE WAY OF RAIN CHANCES AT THIS TIME. NEXT BETTER CHANCE OF PRECIPITATION WILL BE IN THE LATTER PART OF THE LONG TERM WITH A FRONT SLOWING DOWN AS IT APPROACHES HEADING INTO THE WEEKEND. TEMPERATURES TO A FEW DEGREES ABOVE NORMAL THROUGH THE WEEK. && .PRELIMINARY POINT TEMPS/POPS... BATESVILLE AR 64 78 60 78 / 90 60 40 10 CAMDEN AR 67 80 64 84 / 90 70 40 10 HARRISON AR 61 77 55 73 / 90 40 20 10 HOT SPRINGS AR 66 79 61 80 / 90 60 30 10 LITTLE ROCK AR 65 80 63 81 / 90 70 40 10 MONTICELLO AR 67 81 66 83 / 90 70 50 20 MOUNT IDA AR 65 78 59 78 / 90 50 30 10 MOUNTAIN HOME AR 62 78 57 75 / 90 50 30 10 NEWPORT AR 64 78 62 80 / 90 70 50 20 PINE BLUFF AR 66 80 64 82 / 90 70 50 10 RUSSELLVILLE AR 65 79 59 78 / 90 50 30 10 SEARCY AR 65 78 62 80 / 90 70 40 10 STUTTGART AR 66 79 65 81 / 90 70 50 10 && .LZK WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH THROUGH SATURDAY EVENING FOR ARKANSAS-BRADLEY- CALHOUN-CLARK-CLEVELAND-DALLAS-DESHA-DREW-GARLAND-GRANT-HOT SPRING-JEFFERSON-LINCOLN-LONOKE-MONROE-MONTGOMERY-OUACHITA-PERRY- PIKE-POLK-PRAIRIE-PULASKI-SALINE-SCOTT-YELL. && SHORT TERM...51 / LONG TERM...61
Hazardous weather outlook, Apr 29, 5:06 AM CDT, 13 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 506 AM CDT FRI APR 29 2016 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-301015- BOONE-MARION-BAXTER-FULTON-SHARP-NEWTON-SEARCY-STONE-IZARD- INDEPENDENCE-JOHNSON-POPE-VAN BUREN-CLEBURNE-JACKSON-LOGAN-CONWAY- FAULKNER-WHITE-WOODRUFF-SCOTT-YELL-PERRY-POLK-MONTGOMERY-GARLAND- SALINE-PULASKI-LONOKE-PRAIRIE-MONROE-PIKE-CLARK-HOT SPRING-GRANT- JEFFERSON-ARKANSAS-DALLAS-CLEVELAND-LINCOLN-DESHA-OUACHITA- CALHOUN-BRADLEY-DREW- 506 AM CDT FRI APR 29 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS WILL MOVE INTO ARKANSAS TODAY. THE FIRST ROUND IN WEST AND SOUTHWEST ARKANSAS THIS MORNING WILL POSE A THREAT FOR MAINLY LARGE HAIL. BUT AS THUNDERSTORM DEVELOPMENT CONTINUES THROUGH THE DAY...DAMAGING WINDS AND EVEN TORNADOES WILL BECOME A POSSIBILITY AS WELL. STILL...THE PRIMARY THREAT FROM STORMS TODAY WILL BE HAIL AND WINDS. IN ADDITION TO THE STRONG STORMS...FLASH FLOODING WILL ALSO BE A POSSIBILITY AS HEAVY RAINS ARE EXPECTED OVER PARTS OF SOUTHWEST ARKANSAS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SHOWERS AND THUNDERSTORMS WILL BE ONGOING TO START THE DAY SATURDAY...PUSHING EAST ACROSS THE STATE WITH TIME. THE MAIN AREA TO WATCH FOR ANY STRONG TO SEVERE STORM WILL BE IN EASTERN AND SOUTHEASTERN ARKANSAS AS A RESULT. LARGE HAIL IS EXPECTED TO BE THE PRIMARY THREAT AGAIN ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV/LZK.
In the hours before
Local storm report, Apr 29, 12:55 PM CDT, 5 hours 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1255 PM CDT FRI APR 29 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1247 PM FLASH FLOOD HENSLEY 34.51N 92.21W
04/29/2016 PULASKI AR TRAINED SPOTTER
WATER WAS FLOWING OVER A PART OF HIGHWAY 365 IN
HENSLEY.
&&
EVENT NUMBER LZK1600009
WFO LZKSpecial weather statement, Apr 29, 1:06 PM CDT, 5 hours 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
106 PM CDT FRI APR 29 2016
ARZ046-047-056-057-065-291845-
ARKANSAS AR-JEFFERSON AR-PRAIRIE AR-MONROE AR-DESHA AR-
106 PM CDT FRI APR 29 2016
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MONROE...ARKANSAS...
NORTHEASTERN DESHA...EAST CENTRAL JEFFERSON AND SOUTHEASTERN PRAIRIE
COUNTIES UNTIL 145 PM CDT...
AT 106 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
HUMPHREY...OR NEAR STUTTGART...MOVING EAST AT 40 MPH.
DIME SIZE HAIL AND WIND GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
STUTTGART... HUMPHREY... ALMYRA...
ST. CHARLES... DE WITT... CASSCOE...
BAYOU METEO STATE GA...
DE LUCE... INDIAN BAY...
CROCKETTS BLUFF... RAGTOWN... WEBER...
CROSS ROADS IN MONRO...
ETHEL... LODGE CORNER...
LAWRENCEVILLE... ALMYRA AIRPORT... TICHNOR...
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.
&&
LAT...LON 3422 9172 3448 9170 3454 9164 3457 9164
3457 9105 3447 9105 3447 9100 3434 9100
3433 9106 3425 9108 3422 9106 3420 9109
3415 9108 3412 9111 3412 9096 3403 9095
TIME...MOT...LOC 1806Z 269DEG 34KT 3443 9164
CAVANAUGHSpecial weather statement, Apr 29, 1:53 PM CDT, 4 hours 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
153 PM CDT FRI APR 29 2016
ARZ040-041-291945-
MONTGOMERY AR-POLK AR-
153 PM CDT FRI APR 29 2016
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MONTGOMERY AND
NORTHEASTERN POLK COUNTIES UNTIL 245 PM CDT...
AT 152 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
HARTLEY...OR 8 MILES NORTHWEST OF UMPIRE...MOVING NORTHEAST AT 40 MPH.
NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.
LOCATIONS IMPACTED INCLUDE...
ODEN... HARTLEY... SHADY...
COSSATOT RIVER STATE...
BARD SPRINGS RECREAT...
OPAL...
LITTLE MISSOURI FALL...
CANEY CREEK WILDERNE...
BIG FORK...
PINE RIDGE... CHERRY HILL IN POLK ...
SHADY LAKE RECREATIO...
ROARING BRANCH NATUR...
BOARD CAMP...
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.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 3469 9402 3468 9394 3467 9393 3467 9388
3468 9387 3467 9380 3456 9367 3435 9397
3436 9425
TIME...MOT...LOC 1852Z 220DEG 37KT 3436 9414
44Local storm report, Apr 29, 2:16 PM CDT, 4 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
216 PM CDT FRI APR 29 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1045 AM TSTM WND DMG EAST END 34.55N 92.34W
04/29/2016 SALINE AR PUBLIC
TREE WAS REPORTED DOWN ACROSS POWERLINE ON NORTH
SPRINGLAKE ROAD IN EAST END.
&&
EVENT NUMBER LZK1600010
61Special weather statement, Apr 29, 6:06 PM CDT, 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
606 PM CDT FRI APR 29 2016
ARZ053-054-062-292345-
HOT SPRING AR-DALLAS AR-CLARK AR-
606 PM CDT FRI APR 29 2016
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN DALLAS...EASTERN CLARK
AND EASTERN HOT SPRING COUNTIES UNTIL 645 PM CDT...
AT 606 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR GUM SPRINGS IN CLARK
COUNTY TO NEAR GURDON TO NEAR WHELEN SPRINGS...AND MOVING NORTHEAST
AT 35 MPH.
WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
ARKADELPHIA... MALVERN... GURDON...
ROCKPORT... CADDO VALLEY... SPARKMAN...
PERLA... GUM SPRINGS IN CLARK...
RICHWOODS...
DONALDSON... FRIENDSHIP... MAGNET COVE...
CENTRAL... WILLOW... VADEN...
SOCIAL HILL... MANNING... PINE GROVE...
JOAN... OUACHITA...
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.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTHWESTERN
ARKANSAS.
LAT...LON 3379 9306 3378 9308 3387 9312 3406 9324
3448 9286 3433 9271 3391 9268 3382 9291
3382 9293 3380 9294 3377 9303
TIME...MOT...LOC 2306Z 216DEG 29KT 3406 9316 3393 9308 3380 9307
57The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 4:40 AM CDT | Severe Thunderstorm Warning | LZK | Montgomery, Polk | 65 min |
| Apr 29, 5:20 AM CDT | Severe Thunderstorm Warning | LZK | Montgomery, Pike, Polk | 55 min |
| Apr 29, 6:06 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring, Montgomery, Pike | 54 min |
| Apr 29, 6:19 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas | 26 min |
| Apr 29, 6:25 AM CDT | Severe Thunderstorm Warning | LZK | Garland, Montgomery, Perry | 34 min |
| Apr 29, 6:41 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Hot Spring | 23 min |
| Apr 29, 6:42 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas | 33 min |
| Apr 29, 7:14 AM CDT | Special Weather Statement | LZK | Dallas, Grant | 46 min |
| Apr 29, 7:56 AM CDT | Flash Flood Warning | LZK | Montgomery, Pike, Polk | 6 hr |
| Apr 29, 8:49 AM CDT | Special Weather Statement | LZK | Lonoke | 41 min |
| Apr 29, 8:57 AM CDT | Flash Flood Warning | LZK | Pulaski, Saline | 5 hr |
| Apr 29, 9:18 AM CDT | Special Weather Statement | LZK | White | 42 min |
| Apr 29, 9:40 AM CDT | Special Weather Statement | LZK | Garland, Pike | 50 min |
| Apr 29, 10:08 AM CDT | Flash Flood Warning | LZK | Garland, Saline | 3 hr |
| Apr 29, 10:21 AM CDT | Special Weather Statement | LZK | Monroe | 24 min |
| Apr 29, 10:22 AM CDT | Special Weather Statement | LZK | Pulaski | 38 min |
| Apr 29, 10:38 AM CDT | Special Weather Statement | LZK | Desha, Drew | 37 min |
| Apr 29, 10:41 AM CDT | Special Weather Statement | LZK | Hot Spring | 49 min |
| Apr 29, 10:44 AM CDT | Special Weather Statement | LZK | Monroe | 16 min |
| Apr 29, 10:46 AM CDT | Severe Thunderstorm Warning | LZK | Garland, Hot Spring | 44 min |
| Apr 29, 10:54 AM CDT | Special Weather Statement | LZK | Monroe | 21 min |
| Apr 29, 11:04 AM CDT | Special Weather Statement | LZK | Pulaski | 41 min |
| Apr 29, 11:53 AM CDT | Special Weather Statement | LZK | Independence, White | 37 min |
| Apr 29, 12:07 PM CDT | Special Weather Statement | LZK | Pike | 38 min |
| Apr 29, 12:14 PM CDT | River Flood Warning | LZK | Calhoun, Ouachita | 15 days |
| Apr 29, 12:19 PM CDT | River Flood Warning | LZK | Saline | 64 hr |
| Apr 29, 12:24 PM CDT | Special Weather Statement | LZK | Jefferson | 51 min |
| Apr 29, 1:06 PM CDT | Special Weather Statement | LZK | Arkansas | 39 min |
| Apr 29, 1:53 PM CDT | Special Weather Statement | LZK | Polk | 52 min |
| Apr 29, 4:57 PM CDT | Flash Flood Warning | LZK | Clark, Pike | 5 hr |
| Apr 29, 6:06 PM CDT | Special Weather Statement | LZK | Clark, Hot Spring | 39 min |
Nearby
Flash Flood Warnings in Arkansas, 2016Every flash flood warning in 2016
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.