An approaching broad upper low east of the Four Corners region placed eastern Texas in a favorable upper air pattern conducive to sustaining either a mesoscale storm complex or an organized linear storm system. Daytime heating, within a highly moist environment and a passing shortwave disturbance, allowed a south central Texas originating derecho to pass through within the southwest flow and…
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS HGX wrote it up.
An approaching broad upper low east of the Four Corners region placed eastern Texas in a favorable upper air pattern conducive to sustaining either a mesoscale storm complex or an organized linear storm system. Daytime heating, within a highly moist environment and a passing shortwave disturbance, allowed a south central Texas originating derecho to pass through within the southwest flow and cause severe weather damage across the Houston, Texas area.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Houston/Galveston, TX wrote its last area forecast discussion before the first event at Apr 17, 11:38 AM CST, 1 hour 22 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1238 PM CDT FRI APR 17 2015
.DISCUSSION...
SEE 18Z AVIATION DISCUSSION.
&&
.AVIATION...
SHORT TERM GUIDANCE REMAINS BULLISH WITH AN EAST-WEST LINE OF
SHRA/TSRA DEVELOPING LATE THIS AFTN. NOT EXACTLY SURE WHERE THESE
SHRAS WILL DEVELOP AND BROAD BRUSHED THE AREA WITH VCSH/VCTS WITH
A TEMPO GROUP BETWEEN 22-02Z. SOME OF THE STORMS COULD PRODUCE
GUSTY WINDS THIS EVENING. AN MCS WILL APPROACH SE TX LATE TONIGHT
INTO EARLY SATURDAY. SINCE TIMING THESE FEATURES IS TOUGH...WILL
JUST GO WITH A VCTS FOR NOW. 43
&&
.PREV DISCUSSION... /ISSUED 1125 AM CDT FRI APR 17 2015/
UPDATE...
THE ANTICIPATION FOR ANOTHER ACTIVE DAY IS BRIMMING...MORNING
UPDATE SHOWS MINOR TWEAKS TO POPS/QPF TO COMMUNICATE THE THREAT
FOR THE PASSAGE OF A LATE DAY INTO EVENING MCS OR QLCS. VICIOUS
LOOKING SHORTWAVE DISTURBANCE MOVING ACROSS BAJA THAT...WHEN
COUPLED WITH THE SPEED MAX WORKING ITS WAY INTO WESTERN TEXAS...
WILL LIKELY BE ALL THE TRIGGER NEEDED IN RE-DEVELOPING LATE AFTERNOON
THROUGH EVENING REGIONAL RAIN AND NUMEROUS STORM ACTIVITY. UPPER
LEVEL SUPPORT WILL COME FROM SE TEXAS FALLING UNDER THE LF QUAD
AND FROM AMPLE SPREADING OF 25-3H WINDS/DIFFULENCE IN RESPONSE TO
THE LARGE SLOW-MOVING MID-UPPER LOW CENTERED OVER THE FOUR CORNERS.
RECENT SUBSIDENCE FROM LAST NIGHT'S ACTION HAS CREATED A EASTERN
MESO-HIGH THAT HAS AIDED IN CLEARING MORNING SKIES OUT. PLENTY OF
MORNING SUN WILL SPIKE TEMPERATURES INTO THE 80S OVER THE NEXT
HOUR OR TWO...SO THERE SHOULDN'T BE MUCH PROBLEM OF BREAKING THE
MID-LEVEL CAPPING NOTED ON THE 12Z CRP SOUNDING. 1.7 TO 1.8 INCH
PWATS ARE LOCKED IN PLACE WITH THE BACKGROUND OF LL SE FLOW
SUPPORTING CONTINUED MOISTURE FLUX AND MAY LIKELY PROVIDE THE
NEEDED INFLOW INTO ANY MCV/MCD THAT TRUCKS THROUGH BETWEEN 20Z AND
06Z TONIGHT. WIND PROFILE IS VEERED AND THIS WAA REGIME ADDS
PLENTY OF SUPPORT TO THE ARGUMENT THAT THE MAIN THREATS WILL BE
HEAVY RAINFALL LEADING TO FLOODING AND STRONG STORM WINDS.
SECONDARY THREATS WILL BE LARGE HAIL...ESPECIALLY IF ANY DISCRETE
CELLS PULSE UP QUICKLY (LIKE YESTERDAY AFTERNOON OVER WESTERN
HARRIS COUNTY). THE PROG SOUNDINGS ALSO DISPLAY SUB 11K FT WBZ
HEIGHTS THAT LEAN TOWARDS MANY STRONGER CELLS (SAY 50 DBZ ABOVE
20K FT) PRODUCING AT LEAST NICKELS. OVERALL...THERMO PROFILES ARE
VERY AGGRESSIVE ONCE AGAIN WITH LARGE CAPE AND SEVERE INDICES
(ONCE LOW 80S CONVECTIVE TEMPS AREA MET).
NATIONAL CENTERS SPC AND WPC HAVE CENTERED AN ENHANCED OUTLOOK FOR
SEVERE AND MODERATE EXCESSIVE RAINFALL CHANCES...RESPECTIVELY...
OVER THE FORECAST AREA TODAY. THERE IS AN AREAWIDE FLOOD WATCH IN
EFFECT THRUOGH TOMORROW MORNING. FLASH FLOOD GUIDANCE STATES THAT
HARRIS...FORT BEND...CHAMBERS AND LIBERTY COUNTIES ARE THOSE COUNTIES
THAT CAN RECEIVE THE LEAST AMOUNT OF SHORT TERM RAINFALL...1 TO 2
INCH HOURLY RAIN AMOUNT OVER THESE AREAS WILL LIKELY PRODUCE RUN-
OFF FLOODING ISSUES. THROUGH SATURDAY MORNING...THE ENTIRE CWA
(SANS ABOVE COUNTIES) CAN ONLY HANDLE AN ADDITIONAL 2 TO 3 INCHES
OF NEW RAINFALL OVER A COUPLE OF HOURS BEFORE FLOODING WILL OCCUR.
PLEASE STAY AWARE AND CLOSELY MONITOR LOCAL GOVT AND MEDIA OUTLETS
FOR UPDATED FORECASTS AND INFORMATION. 31
PREV DISCUSSION... /ISSUED 724 AM CDT FRI APR 17 2015/
UPDATE...
A QUICK UPDATE TO LOWER RAIN CHANCES THIS MORNING ACROSS THE AREA.
BUT BY LATE MORNING STILL EXPECTING SCATTERED SHOWER AND
THUNDERSTORMS WITH THE POTENTIAL FOR HEAVY RAIN.
45
PREV DISCUSSION... /ISSUED 459 AM CDT FRI APR 17 2015/
DISCUSSION...
VERY HEAVY RAINS YESTERDAY AFTERNOON AND OVERNIGHT JUST A TASTE OF
WHAT IS TO COME. SHOWERS AND THUNDERSTORMS THIS MORNING FROM
AROUND THE NEARSHORE WATERS OFF OF MATAGORDA BAY TO FREEPORT TO
MONT BELVIEU TO DAYTON WITH A GENERAL WEAKENING TREND INLAND WHILE
THE STORMS IN THE OFFSHORE WATERS HAVE BEEN GETTING A LITTLE MORE
ORGANIZED WITH DEEPER ROTATION. MESO HIGH OVER SW LA APPARENT UP
THROUGH 850MB APPEARS TO BE HELPING REINFORCE THE DEEPER AND
STRONGER EASTERLY LL FLOW BUT AS THE LA SYSTEM PULLS AWAY THE LL
EASTERLY FLOW SHOULD WEAKEN. AS THIS S/W THAT GOT THESE STORMS
FIRED UP OVERNIGHT DEPARTS TO THE EAST AM EXPECTING THE LL FLOW TO
GRADUALLY WEAKEN AND BEGIN TO VEER TO THE SOUTHEAST AND SOUTH.
THIS WILL BRING BACK IN THE ANOMALOUSLY HIGH PW VALUES AND SET THE
STAGE FOR MORE STORMS THIS AFTERNOON AND TONIGHT. AS THE
SUBTROPICAL JET PROGRESSES EASTWARD TODAY AND THE SPEED MAX OVER
MEXICO AND RIO GRANDE AREA NEAR DRT SHIFTS INTO THE AREA EXPECTING
THAT STORMS SHOULD REDEVELOP OVER THE REGION THIS AFTERNOON BUT BE
MORE SCATTERED IN NATURE AND NOT WELL ORGANIZED...BUT LATE THIS
AFTERNOON AND TONIGHT WILL BE A DIFFERENT STORY. A LARGE MCS
SHOULD DEVELOP IN THE AREA TO THE WEST OF SAN ANTONIO GETTING
LARGER AND MORE ORGANIZED AS IT MOVES TOWARD SETX. IT SHOULD GET
INTO THE WESTERN AREAS EARLY THIS EVENING (OR POSSIBLY LATE THIS
AFTERNOON...AS SOME OF THE HIGH RES MODELS INDICATE) AS MOST OF
THE LARGER SCALE GUIDANCE SUPPORTS. VERY LARGE SCALE LIFT WITH
THE STRONGLY DIFFLUENT PATTERN ALOFT AND ABUNDANT INSTABILITY TO
WORK WITH SHOULD PROMPT WIDESPREAD RAINFALL FOR SETX. THE FLOOD
WATCH HAS BEEN EXTENDED TO 12Z SATURDAY BUT IT MAY NEED EXTENDING
INTO SATURDAY AFTERNOON...FOR THE POSSIBILITY OF MORE STORMS
SATURDAY MORNING AND EARLY AFTERNOON THOUGH MAINLY OVER THE
CENTRAL AND EASTERN AREAS. RAINFALL TOTALS FROM THIS MORNING
THROUGH SATURDAY MORNING - WIDESPREAD 0.5-1 INCH WITH ISOLATED TO
SCATTERED TOTALS OF 3 TO 6 INCHES. OBVIOUSLY IF THESE HEAVIER
AMOUNTS FALL ON THE AREAS HARDEST HIT YESTERDAY AND THIS MORNING
(OR FOR THAT MATTER THE COASTAL AREAS FROM EDNA TO CLEAR LAKE)
THEN SIGNIFICANT FLOODING WILL BE MUCH MORE LIKELY.
SEVERE THREAT STILL ON FOR TODAY...PRESENCE OF THE LL BOUNDARY
LIFTING NORTH THROUGH THE AREA-VERY HIGH INSTABILITY WITH CAPE
VALUES OF 2200-3700 J/KG AND LI OF -5 TO -10-SHEAR STARTS OUT HIGH
THIS MORNING BUT DECREASE THROUGH THE AFTERNOON HOURS AS LL FLOW
VEERS BUT STILL ENOUGH TO SUPPORT SEVERE THREAT. IF WE REACH ANY
POCKETS OF MID 80S WE MAY SEE MORE PULSE SEVERE THIS AFTERNOON. TODAY
IT RANGES FROM DAMAGING WINDS AND BRIEF TORNADOES THIS MORNING...SHIFTING
TO HAIL AND DAMAGING WINDS THIS AFTERNOON...STORMS OVERNIGHT MAY
POSE MORE OF A DAMAGING WIND AND HAIL THREAT THAN TORNADO BUT
CAN'T RULE BRIEF ONES OUT.
SUNDAY AND BEYOND SURFACE LOW MOVES FROM TX/OK INTO GREAT LAKES
REGION AND 850 FLOW SWINGS AROUND TO THE NORTH WITH DRYING AS
A COLD FRONT PUSHES OFF THE COAST EARLY MONDAY. GUIDANCE SHOWING
SOME DIFFERENCES AFTER THE FROPA GOING INTO TUESDAY AND WEDNESDAY.
EXPECT MONDAY AFTERNOON AND TUESDAY MORNING TO BE PLEASANT ACROSS
THE AREA THEN RAIN CHANCES INCREASE AGAIN AS ENTRANCE REGION OF
THE SUBTROPICAL JET CROSSES THE REGION TUESDAY AFTERNOON. WARMING
BACK UP AND GETTING MORE HUMID AGAIN WITH THE RETURN OF SE FLOW.
ANOTHER DEEP TROUGH SETTING UP SHOP OVER THE DESERT SW AND
POSSIBLY THE FOUR CORNERS AREA AGAIN FRIDAY AND SATURDAY...FOR MORE
RAIN AGAIN NEXT SATURDAY. 45
MARINE...
ELEVATED WINDS CONTINUE ACROSS PORTIONS OF THE COASTAL
WATERS EARLY THIS MORNING AND A SMALL CRAFT ADVISORY IS IN EFFECT
FOR THE NEARSHORE WATERS FROM HIGH ISLAND TO FREEPORT THROUGH 7 AM
CDT. THUNDERSTORMS OVER THE COASTAL WATERS THIS MORNING WILL
CONTINUE TO PRODUCE STRONG WINDS AND SEAS... IN ADDITION TO HEAVY
RAINFALL THAT WILL LIMIT VISIBILITIES. THUNDERSTORM CHANCES WILL
CONTINUE OVER THE COASTAL WATERS OVER THE NEXT SEVERAL DAYS AS A
SERIES OF DISTURBANCES APPROACH THE REGION FROM THE WEST. THE NEXT
ROUND OF THUNDERSTORMS IS EXPECTED OVER THE COASTAL WATERS THIS
EVENING AND INTO THE OVERNIGHT HOURS AS A THUNDERSTORM COMPLEX
DEVELOPS OVER CENTRAL TEXAS AND PUSHES EAST TOWARDS THE GULF...
WITH A SECOND THUNDERSTORM COMPLEX POSSIBLY REACHING THE COASTAL
WATERS AGAIN ON SATURDAY AFTERNOON AND EVENING. FREQUENT
LIGHTNING... STRONG WINDS... AND HEAVY RAIN WILL BE POSSIBLE WITH
ANY THUNDERSTORM.
ONSHORE FLOW WILL PERSIST THROUGH THE WEEKEND WITH HIGH PRESSURE
OVER THE EASTERN GULF AND LOW PRESSURE OVER THE HIGH PLAINS. BY
MONDAY... A PASSING UPPER TROUGH WILL HELP SEND A COLD FRONT ACROSS
THE COASTAL WATERS. OFFSHORE FLOW WILL BE SHORT-LIVED IN THE WAKE OF
THIS FRONT HOWEVER... WITH AN EASTERLY FETCH IN PLACE BY TUESDAY AS
SURFACE HIGH PRESSURE SLIDES OVER THE SOUTHEASTERN CONUS.
THUNDERSTORM CHANCES INCREASE OVER THE COASTAL WATERS BY THE MIDDLE
OF NEXT WEEK AS THE NEXT STORM SYSTEM APPROACHES THE SOUTHERN
PLAINS. 14
&&
.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 81 66 78 63 83 / 60 80 50 20 20
HOUSTON (IAH) 83 68 79 65 84 / 60 90 60 20 20
GALVESTON (GLS) 80 71 78 70 78 / 50 80 50 30 20
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...FLASH FLOOD WATCH THROUGH SATURDAY MORNING FOR THE FOLLOWING
ZONES: AUSTIN...BRAZORIA...BRAZOS...BURLESON...CHAMBERS...
COLORADO...FORT BEND...GALVESTON...GRIMES...HARRIS...
HOUSTON...JACKSON...LIBERTY...MADISON...MATAGORDA...
MONTGOMERY...POLK...SAN JACINTO...TRINITY...WALKER...
WALLER...WASHINGTON...WHARTON.
GM...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL 1 PM CDT THIS
AFTERNOON FOR THE FOLLOWING ZONES: WATERS FROM FREEPORT TO
THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM...WATERS FROM
HIGH ISLAND TO FREEPORT 20 TO 60 NM.
&&
DISCUSSION...31
AVIATION/MARINE...43HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 853 AM CDT FRI APR 17 2015 GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226- 227-235>238-181400- AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND- GALVESTON-GALVESTON BAY-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY- MADISON-MATAGORDA-MATAGORDA BAY-MONTGOMERY-POLK-SAN JACINTO- TRINITY-WALKER-WALLER-WASHINGTON- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM- WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM- WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM- WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-WHARTON- 853 AM CDT FRI APR 17 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT A FLOOD WATCH IS IN EFFECT THROUGH SATURDAY MORNING. THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS ACROSS SOUTHEAST TEXAS THIS AFTERNOON. AS THE ATMOSPHERE WARMS AND BECOMES MORE UNSTABLE THIS AFTERNOON SCATTERED THUNDERSTORMS SHOULD REDEVELOP OVER THE AREA. SHORT LIVED STRONG TO SEVERE THUNDERSTORMS COULD FORM THIS AFTERNOON BRINGING THE THREAT OF HAIL AND DAMAGING WINDS. HEAVY RAINS WILL BE POSSIBLE AS WELL WITH RAINFALL RATES OF AROUND 2 INCHES PER HOUR BEING COMMONPLACE. LATE THIS AFTERNOON AND TONIGHT A STRONG UPPER LEVEL DISTURBANCE SHOULD MOVE INTO THE HILL COUNTRY AND EVENTUALLY SOUTHEAST TEXAS THIS SYSTEM WILL HAVE A HIGH POTENTIAL FOR VERY HEAVY RAIN AND STRONG DAMAGING WINDS. RAINFALL TOTALS THROUGH SATURDAY MORNING ACROSS THE AREA SHOULD AVERAGE 0.5-1.0" BUT SCATTERED TOTALS OF 3 TO 6 INCHES WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY STRONG TO SEVERE THUNDERSTORMS WITH HEAVY RAIN WILL BE POSSIBLE AGAIN SATURDAY AS YET ANOTHER DISTURBANCE MOVES THROUGH THE REGION. DRIER WEATHER SHOULD TAKE HOLD SATURDAY NIGHT THROUGH MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL MAY BE NEEDED THIS AFTERNOON THROUGH SATURDAY.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1222 PM CDT FRI APR 17 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 PM TSTM WND DMG 2 N EAST BERNARD 29.56N 96.06W
04/16/2015 WHARTON TX EMERGENCY MNGR
TREES DOWN AND BARN DAMAGED ON THE EAST END OF CR-272
NEAR THE SAN BERNARD RIVER.
&&
EVENT NUMBER HGX1500042
40PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1232 PM CDT FRI APR 17 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0920 PM TSTM WND DMG 2 N EAST BERNARD 29.56N 96.06W
04/16/2015 WHARTON TX EMERGENCY MNGR
TREES DOWN AND BARN DAMAGED ON THE EAST END OF CR-272
NEAR THE SAN BERNARD RIVER.
&&
EVENT NUMBER HGX1500043
40PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1239 PM CDT FRI APR 17 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1215 PM HAIL HOUSTON 29.77N 95.39W
04/16/2015 M1.00 INCH HARRIS TX PUBLIC
QUARTER SIZED HAIL AT BELTWAY 8 AND BUNKER HILL
VILLAGE.
1219 PM HAIL HOUSTON 29.77N 95.39W
04/16/2015 M1.00 INCH HARRIS TX PUBLIC
HAIL FROM DINE TO QUARTER SIZED AT BELTWAY 8 AND CLAY
ROAD.
0930 PM HAIL RICHMOND 29.58N 95.77W
04/16/2015 M1.75 INCH FORT BEND TX PUBLIC
GOLFBALL SIZED HAIL IN RICHMOND AT READING ROAD AND FM
762.
1000 PM HAIL PEARLAND 29.56N 95.28W
04/16/2015 E0.75 INCH BRAZORIA TX PUBLIC
DIME SIZED HAIL IN PEARLAND.
1020 PM HAIL ROSENBERG 29.55N 95.79W
04/16/2015 M1.00 INCH FORT BEND TX TRAINED SPOTTER
HAIL PEAKED AT QUARTER SIZED.
1020 PM TSTM WND GST ROSENBERG 29.55N 95.79W
04/16/2015 E60 MPH FORT BEND TX TRAINED SPOTTER
TRAINED SPOTTER ESTIMATES 60 MILE PER HOUR WIND GUSTS.
1032 PM HAIL ROSENBERG 29.55N 95.79W
04/16/2015 E0.88 INCH FORT BEND TX TRAINED SPOTTER
NICLE SIZED HAIL AND 55-60 MPH SUSTAINED WINDS STILL
ONGOING IN CENTRAL FORT BEND COUNTY ASSOCIATED WITH
SUPERCELL TSTM.
1035 PM HAIL RICHMOND 29.58N 95.77W
04/16/2015 M1.75 INCH FORT BEND TX LAW ENFORCEMENT
GOLFBALL SIZED HAIL NEAR FM 762 AND US 59.
1101 PM FLOOD PASADENA 29.66N 95.15W
04/16/2015 HARRIS TX FIRE DEPT/RESCUE
SOME STREET FLOODING BEING REPORTED AROUND PASADENA.
REDBLUFF AND NORTHWOOD ROADS FLOODING.
&&
EVENT NUMBER HGX1500044
EVENT NUMBER HGX1500045
EVENT NUMBER HGX1500046
EVENT NUMBER HGX1500047
EVENT NUMBER HGX1500048
EVENT NUMBER HGX1500049
EVENT NUMBER HGX1500050
EVENT NUMBER HGX1500051
EVENT NUMBER HGX1500052
DCHPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1240 PM CDT FRI APR 17 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1210 PM HAIL HEDWIG VILLAGE 29.78N 95.52W
04/16/2015 E0.75 INCH HARRIS TX PUBLIC
REPORTS OF DIME SIZE HAIL AROUND THE SPRING BRANCH
AREA...NEAR THE INTERSECTION OF INTERSTATE 10 AND
BELTWAY 8.
1215 PM HAIL HEDWIG VILLAGE 29.78N 95.52W
04/16/2015 E1.00 INCH HARRIS TX PUBLIC
NUMEROUS REPORTS OF QUARTER SIZE HAIL.
1215 PM HAIL HOUSTON 29.77N 95.39W
04/16/2015 M1.00 INCH HARRIS TX PUBLIC
QUARTER SIZED HAIL AT BELTWAY 8 AND BUNKER HILL
VILLAGE.
1219 PM HAIL HOUSTON 29.77N 95.39W
04/16/2015 M1.00 INCH HARRIS TX PUBLIC
HAIL FROM DINE TO QUARTER SIZED AT BELTWAY 8 AND CLAY
ROAD.
1230 PM HAIL JERSEY VILLAGE 29.89N 95.57W
04/16/2015 E1.00 INCH HARRIS TX LAW ENFORCEMENT
DIME SIZE TO 1 INCH HAIL REPORTED BY THE HOUSTON PD.
0335 PM HAIL COLUMBUS 29.70N 96.55W
04/16/2015 M0.75 INCH COLORADO TX LAW ENFORCEMENT
DIME SIZED HAIL IN DOWNTOWN COLUMBUS.
0340 PM HAIL 4 W COLUMBUS 29.70N 96.62W
04/16/2015 M1.00 INCH COLORADO TX EMERGENCY MNGR
QUARTER SIZED HAIL ALONG INTERSTATE 10 WEST OF
COLUMBUS.
0340 PM TSTM WND DMG 4 W COLUMBUS 29.70N 96.62W
04/16/2015 COLORADO TX EMERGENCY MNGR
TREE LIMBS DOWN ALONG INTERSTATE 10 DUE TO 60 MILE PER
HOUR WIND GUSTS.
0400 PM TSTM WND DMG 16 N COLUMBUS 29.94N 96.55W
04/16/2015 AUSTIN TX PUBLIC
LARGE TREES KNOCKED DOWN AND LIMBS SNAPPED 3 MILES SW
OF NEW ULM ON SHUPAK ROAD.
0458 PM HAIL 8 NW HUNTSVILLE 30.79N 95.65W
04/16/2015 M0.75 INCH WALKER TX TRAINED SPOTTER
DIME SIZED HAIL 8 MILES NORTHWEST OF HUNTSVILLE.
0505 PM TSTM WND DMG 7 S LA WARD 28.75N 96.47W
04/16/2015 JACKSON TX FIRE DEPT/RESCUE
ON TX-172 N OF 35 AND 172 INTERSECTION... RECENTLY NEW
ELECTRICAL POLE SNAPPED OFF 20 FEET ABOVE THE GROUND
LEADING TO POWER OUTAGE.
0508 PM HAIL HUNTSVILLE 30.71N 95.55W
04/16/2015 E0.50 INCH WALKER TX EMERGENCY MNGR
HALF INCH HAIL IN HUNTSVILLE...
0509 PM HAIL 2 NE BRYAN 30.69N 96.34W
04/16/2015 M1.50 INCH BRAZOS TX PUBLIC
PING PONG SIZED HAIL JUST NORTHEAST OF BRYAN.
0510 PM HAIL 12 E LIVINGSTON 30.71N 94.73W
04/16/2015 M1.00 INCH POLK TX LAW ENFORCEMENT
QUARTER SIZE HAIL REPORTED OVER THE ALABAMA-COUSHATTA
RESERVATION.
0510 PM TSTM WND DMG THE WOODLANDS 30.16N 95.49W
04/16/2015 MONTGOMERY TX BROADCAST MEDIA
THREE LARGE OAK TREES UPROOTED THEN LANDING ON
HOMES...OTHER TREE LIMBS BROKEN AND WIND DAMAGE TO A
HALF MILE STRETCH OF NEIGHBORHOOD.
0510 PM TSTM WND DMG 12 WNW HUNTSVILLE 30.78N 95.74W
04/16/2015 WALKER TX NEWSPAPER
HUNTSVILLE NEWSPAPER REPORT OF TREES DOWN ALONG FM-1696
NEAR CRABBS PRAIRIE.
0512 PM HAIL 7 WNW HUNTSVILLE 30.75N 95.66W
04/16/2015 M1.00 INCH WALKER TX BROADCAST MEDIA
QUARTER SIZED HAIL IN CRABBS PRAIRIE.
0535 PM HAIL 4 N HUNTSVILLE 30.77N 95.55W
04/16/2015 M1.25 INCH WALKER TX TRAINED SPOTTER
HALF DOLLAR SIZED HAIL JUST NORTH OF HUNTSVILLE.
0545 PM FLASH FLOOD HUNTSVILLE 30.71N 95.55W
04/16/2015 WALKER TX BROADCAST MEDIA
SAM HOUSTON STATE UNIVERSITY HAS FLOODED PARKING LOTS
AND FLOODING IN THE RECREATION BUILDING.
0550 PM TSTM WND DMG 17 SW BAY CITY 28.80N 96.16W
04/16/2015 MATAGORDA TX PUBLIC
LARGE TREE LIMBS DAMAGED IN FRONT OF BLESSING HOTEL AND
COFFEE SHOP IN BLESSING... TX.
0605 PM FUNNEL CLOUD PALACIOS 28.71N 96.24W
04/16/2015 MATAGORDA TX LAW ENFORCEMENT
FUNNEL CLOUD JUST NORTH OF PALACIOS.
0620 PM TSTM WND DMG 13 SW BAY CITY 28.85N 96.12W
04/16/2015 MATAGORDA TX PUBLIC
FALLING TREE LIMBS AND ROOF DAMAGE FROM HIGH WINDS NEAR
6TH ST AND AVE F INTERSECTION IN MARKHAM TX.
0834 PM HAIL 12 W EAGLE LAKE 29.59N 96.53W
04/16/2015 M1.75 INCH COLORADO TX EMERGENCY MNGR
GOLFBALL SIZED HAIL 3 MILES WEST OF ALTAIR IN CENTRAL
COLORADO COUNTY.
0920 PM FLOOD LIBERTY 30.05N 94.80W
04/16/2015 LIBERTY TX LAW ENFORCEMENT
FM563 BETWEEN LIBERTY AND ANAHUAC...FM 160E BETWEEN
LIBERTY AND DAISETTA...BOTH FLOODED BUT PASSABLE.
0920 PM TSTM WND DMG 2 N EAST BERNARD 29.56N 96.06W
04/16/2015 WHARTON TX EMERGENCY MNGR
TREES DOWN AND BARN DAMAGED ON THE EAST END OF CR-272
NEAR THE SAN BERNARD RIVER.
0930 PM HAIL RICHMOND 29.58N 95.77W
04/16/2015 M1.75 INCH FORT BEND TX PUBLIC
GOLFBALL SIZED HAIL IN RICHMOND AT READING ROAD AND FM
762.
1000 PM HAIL PEARLAND 29.56N 95.28W
04/16/2015 E0.75 INCH BRAZORIA TX PUBLIC
DIME SIZED HAIL IN PEARLAND.
1020 PM HAIL ROSENBERG 29.55N 95.79W
04/16/2015 M1.00 INCH FORT BEND TX TRAINED SPOTTER
HAIL PEAKED AT QUARTER SIZED.
1020 PM TSTM WND GST ROSENBERG 29.55N 95.79W
04/16/2015 E60 MPH FORT BEND TX TRAINED SPOTTER
TRAINED SPOTTER ESTIMATES 60 MILE PER HOUR WIND GUSTS.
1032 PM HAIL ROSENBERG 29.55N 95.79W
04/16/2015 E0.88 INCH FORT BEND TX TRAINED SPOTTER
NICLE SIZED HAIL AND 55-60 MPH SUSTAINED WINDS STILL
ONGOING IN CENTRAL FORT BEND COUNTY ASSOCIATED WITH
SUPERCELL TSTM.
1035 PM HAIL RICHMOND 29.58N 95.77W
04/16/2015 M1.75 INCH FORT BEND TX LAW ENFORCEMENT
GOLFBALL SIZED HAIL NEAR FM 762 AND US 59.
1101 PM FLOOD PASADENA 29.66N 95.15W
04/16/2015 HARRIS TX FIRE DEPT/RESCUE
SOME STREET FLOODING BEING REPORTED AROUND PASADENA.
REDBLUFF AND NORTHWOOD ROADS FLOODING.
&&
EVENT NUMBER HGX1500020 HGX1500021 HGX1500044 HGX1500045 HGX1500036
HGX1500024 HGX1500022 HGX1500023 HGX1500038 HGX1500025 HGX1500037
HGX1500026 HGX1500029 HGX1500028 HGX1500033 HGX1500039 HGX1500027
HGX1500030 HGX1500032 HGX1500040 HGX1500031 HGX1500041 HGX1500034
HGX1500035 HGX1500043 HGX1500046 HGX1500047 HGX1500048 HGX1500049
HGX1500050 HGX1500051 HGX1500052
DCHPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1259 PM CDT FRI APR 17 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0750 PM HAIL 5 SE EL CAMPO 29.15N 96.22W
04/16/2015 E1.00 INCH WHARTON TX NEWSPAPER
FROM THE EL CAMPO LEADER NEWS... HAIL DAMAGE TO
AGRICULTURE FIELD NEAR INTERSECTION OF CR-414 AND
CR-407.
&&
EVENT NUMBER HGX1500053
40PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
100 PM CDT FRI APR 17 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1210 PM HAIL HEDWIG VILLAGE 29.78N 95.52W
04/16/2015 E0.75 INCH HARRIS TX PUBLIC
REPORTS OF DIME SIZE HAIL AROUND THE SPRING BRANCH
AREA...NEAR THE INTERSECTION OF INTERSTATE 10 AND
BELTWAY 8.
1215 PM HAIL HEDWIG VILLAGE 29.78N 95.52W
04/16/2015 E1.00 INCH HARRIS TX PUBLIC
NUMEROUS REPORTS OF QUARTER SIZE HAIL.
1215 PM HAIL HOUSTON 29.77N 95.39W
04/16/2015 M1.00 INCH HARRIS TX PUBLIC
QUARTER SIZED HAIL AT BELTWAY 8 AND BUNKER HILL
VILLAGE.
1219 PM HAIL HOUSTON 29.77N 95.39W
04/16/2015 M1.00 INCH HARRIS TX PUBLIC
HAIL FROM DINE TO QUARTER SIZED AT BELTWAY 8 AND CLAY
ROAD.
1230 PM HAIL JERSEY VILLAGE 29.89N 95.57W
04/16/2015 E1.00 INCH HARRIS TX LAW ENFORCEMENT
DIME SIZE TO 1 INCH HAIL REPORTED BY THE HOUSTON PD.
0335 PM HAIL COLUMBUS 29.70N 96.55W
04/16/2015 M0.75 INCH COLORADO TX LAW ENFORCEMENT
DIME SIZED HAIL IN DOWNTOWN COLUMBUS.
0340 PM HAIL 4 W COLUMBUS 29.70N 96.62W
04/16/2015 M1.00 INCH COLORADO TX EMERGENCY MNGR
QUARTER SIZED HAIL ALONG INTERSTATE 10 WEST OF
COLUMBUS.
0340 PM TSTM WND DMG 4 W COLUMBUS 29.70N 96.62W
04/16/2015 COLORADO TX EMERGENCY MNGR
TREE LIMBS DOWN ALONG INTERSTATE 10 DUE TO 60 MILE PER
HOUR WIND GUSTS.
0400 PM TSTM WND DMG 16 N COLUMBUS 29.94N 96.55W
04/16/2015 AUSTIN TX PUBLIC
LARGE TREES KNOCKED DOWN AND LIMBS SNAPPED 3 MILES SW
OF NEW ULM ON SHUPAK ROAD.
0458 PM HAIL 8 NW HUNTSVILLE 30.79N 95.65W
04/16/2015 M0.75 INCH WALKER TX TRAINED SPOTTER
DIME SIZED HAIL 8 MILES NORTHWEST OF HUNTSVILLE.
0505 PM TSTM WND DMG 7 S LA WARD 28.75N 96.47W
04/16/2015 JACKSON TX FIRE DEPT/RESCUE
ON TX-172 N OF 35 AND 172 INTERSECTION... RECENTLY NEW
ELECTRICAL POLE SNAPPED OFF 20 FEET ABOVE THE GROUND
LEADING TO POWER OUTAGE.
0508 PM HAIL HUNTSVILLE 30.71N 95.55W
04/16/2015 E0.50 INCH WALKER TX EMERGENCY MNGR
HALF INCH HAIL IN HUNTSVILLE...
0509 PM HAIL 2 NE BRYAN 30.69N 96.34W
04/16/2015 M1.50 INCH BRAZOS TX PUBLIC
PING PONG SIZED HAIL JUST NORTHEAST OF BRYAN.
0510 PM HAIL 12 E LIVINGSTON 30.71N 94.73W
04/16/2015 M1.00 INCH POLK TX LAW ENFORCEMENT
QUARTER SIZE HAIL REPORTED OVER THE ALABAMA-COUSHATTA
RESERVATION.
0510 PM TSTM WND DMG THE WOODLANDS 30.16N 95.49W
04/16/2015 MONTGOMERY TX BROADCAST MEDIA
THREE LARGE OAK TREES UPROOTED THEN LANDING ON
HOMES...OTHER TREE LIMBS BROKEN AND WIND DAMAGE TO A
HALF MILE STRETCH OF NEIGHBORHOOD.
0510 PM TSTM WND DMG 12 WNW HUNTSVILLE 30.78N 95.74W
04/16/2015 WALKER TX NEWSPAPER
HUNTSVILLE NEWSPAPER REPORT OF TREES DOWN ALONG FM-1696
NEAR CRABBS PRAIRIE.
0512 PM HAIL 7 WNW HUNTSVILLE 30.75N 95.66W
04/16/2015 M1.00 INCH WALKER TX BROADCAST MEDIA
QUARTER SIZED HAIL IN CRABBS PRAIRIE.
0535 PM HAIL 4 N HUNTSVILLE 30.77N 95.55W
04/16/2015 M1.25 INCH WALKER TX TRAINED SPOTTER
HALF DOLLAR SIZED HAIL JUST NORTH OF HUNTSVILLE.
0545 PM FLASH FLOOD HUNTSVILLE 30.71N 95.55W
04/16/2015 WALKER TX BROADCAST MEDIA
SAM HOUSTON STATE UNIVERSITY HAS FLOODED PARKING LOTS
AND FLOODING IN THE RECREATION BUILDING.
0550 PM TSTM WND DMG 17 SW BAY CITY 28.80N 96.16W
04/16/2015 MATAGORDA TX PUBLIC
LARGE TREE LIMBS DAMAGED IN FRONT OF BLESSING HOTEL AND
COFFEE SHOP IN BLESSING... TX.
0605 PM FUNNEL CLOUD PALACIOS 28.71N 96.24W
04/16/2015 MATAGORDA TX LAW ENFORCEMENT
FUNNEL CLOUD JUST NORTH OF PALACIOS.
0620 PM TSTM WND DMG 13 SW BAY CITY 28.85N 96.12W
04/16/2015 MATAGORDA TX PUBLIC
FALLING TREE LIMBS AND ROOF DAMAGE FROM HIGH WINDS NEAR
6TH ST AND AVE F INTERSECTION IN MARKHAM TX.
0750 PM HAIL 5 SE EL CAMPO 29.15N 96.22W
04/16/2015 E1.00 INCH WHARTON TX NEWSPAPER
FROM THE EL CAMPO LEADER NEWS... HAIL DAMAGE TO
AGRICULTURE FIELD NEAR INTERSECTION OF CR-414 AND
CR-407.
0834 PM HAIL 12 W EAGLE LAKE 29.59N 96.53W
04/16/2015 M1.75 INCH COLORADO TX EMERGENCY MNGR
GOLFBALL SIZED HAIL 3 MILES WEST OF ALTAIR IN CENTRAL
COLORADO COUNTY.
0920 PM FLOOD LIBERTY 30.05N 94.80W
04/16/2015 LIBERTY TX LAW ENFORCEMENT
FM563 BETWEEN LIBERTY AND ANAHUAC...FM 160E BETWEEN
LIBERTY AND DAISETTA...BOTH FLOODED BUT PASSABLE.
0920 PM TSTM WND DMG 2 N EAST BERNARD 29.56N 96.06W
04/16/2015 WHARTON TX EMERGENCY MNGR
TREES DOWN AND BARN DAMAGED ON THE EAST END OF CR-272
NEAR THE SAN BERNARD RIVER.
0930 PM HAIL RICHMOND 29.58N 95.77W
04/16/2015 M1.75 INCH FORT BEND TX PUBLIC
GOLFBALL SIZED HAIL IN RICHMOND AT READING ROAD AND FM
762.
1000 PM HAIL PEARLAND 29.56N 95.28W
04/16/2015 E0.75 INCH BRAZORIA TX PUBLIC
DIME SIZED HAIL IN PEARLAND.
1020 PM HAIL ROSENBERG 29.55N 95.79W
04/16/2015 M1.00 INCH FORT BEND TX TRAINED SPOTTER
HAIL PEAKED AT QUARTER SIZED.
1020 PM TSTM WND GST ROSENBERG 29.55N 95.79W
04/16/2015 E60 MPH FORT BEND TX TRAINED SPOTTER
TRAINED SPOTTER ESTIMATES 60 MILE PER HOUR WIND GUSTS.
1032 PM HAIL ROSENBERG 29.55N 95.79W
04/16/2015 E0.88 INCH FORT BEND TX TRAINED SPOTTER
NICLE SIZED HAIL AND 55-60 MPH SUSTAINED WINDS STILL
ONGOING IN CENTRAL FORT BEND COUNTY ASSOCIATED WITH
SUPERCELL TSTM.
1035 PM HAIL RICHMOND 29.58N 95.77W
04/16/2015 M1.75 INCH FORT BEND TX LAW ENFORCEMENT
GOLFBALL SIZED HAIL NEAR FM 762 AND US 59.
1101 PM FLOOD PASADENA 29.66N 95.15W
04/16/2015 HARRIS TX FIRE DEPT/RESCUE
SOME STREET FLOODING BEING REPORTED AROUND PASADENA.
REDBLUFF AND NORTHWOOD ROADS FLOODING.
&&
EVENT NUMBER HGX1500020 HGX1500021 HGX1500044 HGX1500045 HGX1500036
HGX1500024 HGX1500022 HGX1500023 HGX1500038 HGX1500025 HGX1500037
HGX1500026 HGX1500029 HGX1500028 HGX1500033 HGX1500039 HGX1500027
HGX1500030 HGX1500032 HGX1500040 HGX1500031 HGX1500041 HGX1500053
HGX1500034 HGX1500035 HGX1500043 HGX1500046 HGX1500047 HGX1500048
HGX1500049 HGX1500050 HGX1500051 HGX1500052
40The Houston radar (KHGX), 99 km away, was scanning. The volume nearest the first event began at 18:58 UTC.
20 thunderstorm wind, 7 hail, 5 flash flood. Local standard time, as filed.
County Road 215 was impassable due to flood waters.
Wind gusts estimated at 50 to 60 mph downed trees on FM 283 near Morales.
There were numerous reports of flooded roadways and stranded vehicles in high water in and around the city of Houston, Bellaire, Pasadena, La Porte and the Clear Lake/Webster areas. There were fire department high water rescues over the southeastern sector of the county. Impassable roads due to high flood waters include, but are not limited to, South Shepard Street, West Alabama Street, Westheimer Street, Bellaire Blvd, Spur 527 off of Highway 59, Scarsdale Blvd in Pasadena and southbound feeder roads of I-45 around Hobby Airport. There was water in a home off of Scarsdale Blvd in Pasadena. There were approximately 40 flooded homes in the town of La Porte.
Thunderstorm winds downed a tree in El Campo.
Thunderstorm winds damaged a barn, an air conditioning window unit, and a pump house. There were also numerous trees downed in the yard.
Street flooding in the town of Richwood.
Egg to tennis ball sized hail was reported in Angleton.
Quarter sized hail was reported at Landers Road.
Thunderstorm winds collapsed a circus tent at the Angleton Fairgrounds.
There were multiple reports of quarter sized hail in and around the Angleton area.
Thunderstorm winds downed six power lines along Highway 35.
Thunderstorm winds downed a tree and destroyed much of a two story house. A tree also fell on the American Legion Pavilion.
Ping pong sized hail was observed in the Lake Jackson area.
Thunderstorm winds downed several trees and many tree limbs.
Two inch hail observed to the west of Danbury along SH 288.
Thunderstorm winds gusted up to 70 mph.
Thunderstorm winds downed several trees and numerous tree limbs throughout the city.
Quarter sized hail was observed in the Angleton area.
Heavy rain caused localized street flooding within the town of Pearland.
Flooded roadways due to high rainfall around Friendswood High School.
Thunderstorm wind gusts estimated around 72 mph were observed.
Quarter sized hail was observed south of Iowa Colony.
Thunderstorm winds blew a roof off a home.
Thunderstorm winds downed tree limbs and power lines.
Thunderstorm winds downed a couple of trees.
The wind gusts was measured at Houston Hobby Airport.
Thunderstorm winds downed a large tree and numerous tree limbs.
Wind gusts were estimated to be at least 60 mph with sustained speeds between 45 and 50 mph.
A billboard was downed onto an SUV.
Johnson Space Center recorded this wind gust from an anemometer on the top of a building 152 feet above the ground. This speed is an estimated 65 mph gust at the surface. Many small trees and tree limbs were snapped and blown down across a large part of the JSC complex.
The wind gust was measured at the Brazoria National Wildlife Refuge by a RAWS sensor.
There were reports of damaged fences and to a home that was under construction within the Promenade subdivision.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2015Every state in 2015This day in weather historyWarnings in Texas, April 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 573768, 569545, 573365, 571996, 569544, 573366, 572006, 572007, 571997, 572013, 571998, 571999, 572008, 572009, 572010, 572014, 572000, 572011, 573367, 573368, 572003, 572012, 569546, 572001, 572002, 569552, 572004, 569547, 569549, 569551, 569553, 576210.