Alert archive / Texas / Special Weather Statements in 2013
Special Weather Statement, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this special weather statement at May 22, 2013, 1:21 AM CDT for Montgomery County, San Jacinto County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 22, 2013, 1:21 AM CDT (06:21 UTC)
- Expired
- May 22, 2013, 1:45 AM CDT
- In force
- 24 min
- Issued by
- NWS Houston/Galveston, TX
Counties Montgomery County, TX, San Jacinto County, TX
The radar
The Houston radar (KHGX), 113 km from the middle of the area, began a volume at 06:20 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 6.4 hours before the alert went out and 170 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
- 2268 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 629 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.7
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, 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 this special weather statement went out at May 22, 12:05 AM CDT, 1 hour 16 minutes earlier.
Area forecast discussion, May 22, 12:05 AM CDT, 1 hour 16 minutes before
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</html>Hazardous weather outlook, May 21, 3:52 PM CDT, 9 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 352 PM CDT TUE MAY 21 2013 TXZ163-164-176>179-195>200-210>213-226-227-221300- AUSTIN-BRAZOS-BURLESON-COLORADO-FORT BEND-GRIMES-HARRIS-HOUSTON- LIBERTY-MADISON-MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER- WASHINGTON-WHARTON- 352 PM CDT TUE MAY 21 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT A LINE OF THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS THE AREA THIS EVENING. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS MAINLY ALONG AND NORTH OF A LINE FROM EAGLE LAKE TO HOUSTON TO LIBERTY. THERE IS A MODERATE RISK GENERALLY ALONG AND NORTH OF A LINE FROM NEAR KURTEN IN NORTHERN BRAZOS COUNTY TO MADISONVILLE TO LOVELADY TO CENTRALIA IN NORTHERN TRINITY COUNTY. THE MAIN TIME FRAME WILL LIKELY BE BETWEEN 6 PM AND MIDNIGHT. THE MAIN THREAT ARE DAMAGING WIND AND LARGE HAIL...ALTHOUGH ISOLATED TORNADOES ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SLOW MOVING THUNDERSTORMS WITH HEAVY DOWNPOURS MAY BE POSSIBLE FOR AREAS MAINLY SOUTH OF THE INTERSTATE 10 CORRIDOR. AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL EXPAND OVER THE REGION THURSDAY THROUGH SUNDAY LEADING TO DRIER AND HOTTER WEATHER. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED TONIGHT. GMZ330-335-350-355-370-375-TXZ214-235>238-221300- BRAZORIA-CHAMBERS-GALVESTON-GALVESTON BAY-JACKSON-MATAGORDA- MATAGORDA BAY- 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- 352 PM CDT TUE MAY 21 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE TONIGHT. ISOLATED STRONG STORMS ARE POSSIBLE WITH THE MAIN THREAT DAMAGING WINDS AND SMALL HAIL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.
In the hours before
Local storm report, May 21, 10:41 PM CDT, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1041 PM CDT TUE MAY 21 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1035 PM FLOOD 12 WSW MADISONVILLE 30.91N 96.11W
05/21/2013 MADISON TX LAW ENFORCEMENT
CORNER OF HIGHWAY 21 AND HIGHWAY 39 NEAR NORTH ZULCH
FLOODED.
&&
EVENT NUMBER HGX1300107
PKLocal storm report, May 21, 10:47 PM CDT, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1047 PM CDT TUE MAY 21 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1044 PM HAIL 10 W HUNTSVILLE 30.71N 95.72W
05/21/2013 E1.00 INCH WALKER TX TRAINED SPOTTER
NICKEL TO QUARTER SIZE HAIL REPORTED 10 MILES WEST OF
I-45 IN HUNTSVILLE.
&&
EVENT NUMBER HGX1300108
PKSpecial weather statement, May 21, 11:23 PM CDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1123 PM CDT TUE MAY 21 2013
TXZ179-220500-
POLK TX-
1123 PM CDT TUE MAY 21 2013
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN POLK COUNTY UNTIL 1200
AM CDT...
AT 1122 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR CORRIGAN...MOVING NORTHEAST AT 20 MPH.
HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH WILL BE
POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
CORRIGAN.
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 3101 9465 3096 9465 3088 9495 3100 9498
3114 9483 3110 9474 3111 9471 3109 9466
3110 9465 3109 9464 3106 9456
TIME...MOT...LOC 0412Z 243DEG 19KT 3099 9486Special weather statement, May 22, 12:27 AM CDT, 54 minutes before
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</html>Local storm report, May 22, 12:59 AM CDT, 22 minutes before
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</html>Special weather statement, May 22, 1:21 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:26 PM CDT | Special Weather Statement | HGX | Leon | 49 min |
| May 21, 7:33 PM CDT | Special Weather Statement | HGX | Brazos | 27 min |
| May 21, 7:35 PM CDT | Severe Thunderstorm Warning | HGX | Grimes, Houston, Madison, Walker | 40 min |
| May 21, 7:42 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Grimes, Madison | 48 min |
| May 21, 8:33 PM CDT | Severe Thunderstorm Warning | HGX | Brazos, Burleson, Grimes, Madison | 42 min |
| May 21, 8:50 PM CDT | Special Weather Statement | HGX | Trinity | 40 min |
| May 21, 8:59 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Trinity | 31 min |
| May 21, 9:02 PM CDT | Areal Flood Advisory | HGX | Brazos, Madison | 118 min |
| May 21, 9:16 PM CDT | Severe Thunderstorm Warning | HGX | Grimes, Madison, Walker | 29 min |
| May 21, 9:22 PM CDT | Severe Thunderstorm Warning | HGX | Houston, Polk, Trinity | 53 min |
| May 21, 9:31 PM CDT | Special Weather Statement | HGX | Madison | 59 min |
| May 21, 10:02 PM CDT | Special Weather Statement | HGX | Walker | 58 min |
| May 21, 10:34 PM CDT | Special Weather Statement | HGX | Grimes, Walker | 56 min |
| May 21, 10:47 PM CDT | Severe Thunderstorm Warning | HGX | Walker | 43 min |
| May 21, 10:55 PM CDT | Tornado Warning | HGX | Grimes, Montgomery, Walker | 35 min |
| May 21, 11:23 PM CDT | Special Weather Statement | HGX | Polk | 37 min |
| May 21, 11:31 PM CDT | Severe Thunderstorm Warning | HGX | Polk | 29 min |
| May 21, 11:46 PM CDT | Tornado Warning | HGX | Montgomery | 29 min |
| May 22, 12:27 AM CDT | Special Weather Statement | HGX | Montgomery, Polk, San Jacinto | 63 min |
| May 22, 1:41 AM CDT | Special Weather Statement | HGX | Polk | 49 min |
| May 22, 2:25 AM CDT | Severe Thunderstorm Warning | HGX | Liberty, Montgomery | 65 min |
| May 22, 3:06 AM CDT | Special Weather Statement | HGX | Harris | 54 min |
| May 22, 3:18 AM CDT | Special Weather Statement | HGX | Liberty, Montgomery | 72 min |
| May 22, 3:33 AM CDT | Severe Thunderstorm Warning | HGX | Liberty | 27 min |
| May 22, 3:35 AM CDT | Severe Thunderstorm Warning | HGX | Liberty, Polk, San Jacinto | 55 min |
| May 22, 3:49 AM CDT | Areal Flood Advisory | HGX | Liberty, Montgomery, San Jacinto | 3 hr |
| May 22, 3:55 AM CDT | Special Weather Statement | HGX | Harris | 65 min |
| May 22, 4:24 AM CDT | Severe Thunderstorm Warning | HGX | Liberty | 36 min |
| May 22, 4:48 AM CDT | Severe Thunderstorm Warning | HGX | Chambers, Liberty | 57 min |
Nearby
Special Weather Statements in Texas, 2013Every special weather statement in 2013
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.